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Fundamentals of Power Electronics - Buck Converter Capacitor Value
 
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Deriving the equation for sizing the output capacitor of a buck converter based on the output voltage ripple. We wear triangle "Q" (for charge) hats to help you remember how to calculate the output capacitor value. *Note: Still working on reducing mic noise. We've got a low-budget setup here. ^^;;
Views: 4879 katkimshow
Power Tips: Measuring Vout Ripple in DC/DC Converters
 
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The video explains the measurement set-up for the output voltage ripple in DC/DC converters directly at the load with a high frequency bypass capacitor.
Views: 2235 Texas Instruments
Ripple Voltage Differences by Capacitor Type | Ask An FAE #6
 
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Different capacitor types reduce ripple voltage on DC-to- DC converters. Axel demonstrates how 4 different capacitor types affect the ripple voltage on a boost or buck regulator. Each bank of capacitors is the same capacitance. However, the ESR and ESL differences cause a different in the output ripple voltage. The capacitor types compared include X7R Ceramic, Aluminum Polymer, Polymer KO-CAP, and Tantalum MnO2. This episode was recorded at Electronica 2016 in Munich, Germany. -------------------------------------------------------------------------------------------------------- Learn more at: http://ec.kemet.com/ask/ripple-voltage-comparison-demo Submit your own question: https://ec.kemet.com/ask See other "Ask an FAE" episodes: https://www.youtube.com/playlist?list=PLa3x8V-ZYWEUNRPUyCTjknYUhI9vvDZu9 Who is KEMET? http://www.kemet.com/ --------------------------------------------------------------------------------------------------------- KO-CAP is a registered trademark of KEMET Corporation
Views: 1949 KEMET Electronics
Inductor behavior and Buck Converter Explained
 
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Intuitive analysis of inductor behavior and Buck converter by Prof. Sam Ben-Yaakov
Views: 16351 Sam Ben-Yaakov
How to Reduce DC-DC Converter Output Ripple
 
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Steve Butler, V.P. of Engineering at VPT, discusses the definition and causes of common mode and differential mode output ripple and simple, effective ways to control output ripple. http://www.vptpower.com/ See all of VPT's videos on technical issues for incorporating DC-DC power converters, EMI filters, and other power products into your avionics, military, or other high reliability power system: http://www.vptpower.com/video/
Views: 80198 VPT Tech Videos
LM2596 Buck converter voltage Ripple on Oscilloscope Review Power Supply Module
 
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Voltage ripple on LM2596 step down converter - 2-3 A output current with input voltage max 40V
Views: 6494 World Of Engineering
Let's Scope a Buck Converter
 
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Putting an oscilloscope on the simple buck converter circuit. Measuring voltage and current in the circuit. Trying different switching frequencies and different inductors. https://playground.arduino.cc/Main/TimerPWMCheatsheet
Views: 18984 Julian Ilett
Onstate #77: High-power 600W UC3843 DC-DC CC CV step-up boost converter module testing.
 
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Testing of a standard eBay/Asia 600W DC-DC step-up boost converter regulator. 12.6V input to simulate battery voltage. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO. General specifications: DC-DC 600W 10-60V to 12-80V Boost Converter Step-up Module Car Power Supply. Unbranded generic type. Input: 10-60V, 15A, 15A fuse Output: 12-80V, 10A, CV/CC adjustable Efficiency: up to 95% Dimensions: 85x63x65mm Main components: UC3843 fixed frequency current-mode PWM controller. 8-SOP. UC3843 internal 8.5V(on) and 7.9V (off) UVLO. LM358 dual op-amp. 8-SOP. CC sensing to UC3834 Isense pin. 63V 1000uF input capacitor, JWCO VENT brand. 470uF 100V output capacitors, JWCO VENT brand. BU806 NPN TO-220, set as regulator at 10.8V out. 72N10N MOSFET N-CH 100V 80A TO-220 B20100G 100V 20A dual schottky diode TO-220 11.1mOhms currnt shunt. 18uH power inductor, 14x31mm. Testing measurements: Oscilloscope CH1= switching waveform (MOSFET/Inductor). 10V/div. 10uS/div. Oscilloscope CH2=output waveform. +out. 1V/div. Switching frequency: 36kHz. Under-voltage lock-out: 10.4 off, 10.8 on. Maximum output voltage at no load is 95V. Load: 10.1ohms resistive heater. 120V portable heater. Efficiency: [email protected] out/[email protected] in= 83.7%. 30Vin=86.8%, 4.5Vp-p output spikes, 50mV current ripples. At past 1:15 time, adjustments in CC mode. -Boost module functional with CC and CV control. Good switching signal up to 24V output. Unsteady switching signal at higher output power ranges. Feedback stage to switching IC may not be optimised. -Lack output/input bypass capacitors to reduce switching current spikes. 1uF and 0.1uF caps ceramic caps required. -Low-quality Vent brand caps. -Inductor too low for switching frequency. Recommendation: Boost module is operational for general applications up to 60W at 12V in. Higher power outputs maybe acceptable if output noise and unsteady switching is not a concern. Boost converter modifications may be required for +100W power usage. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Views: 5031 Onstate LED Lighting
Measure and Improve the Output Ripple of a DC DC Converter
 
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How to measure the output ripple as well as improving filter methods for the ouput of a dc dc converter. Improve the output filtering with this video from Vicor Corporation. Learn the theory behind it and a step-by-step bench demonstration measuring output ripple. Be sure to subscribe to Vicor Corporation's channel for more videos. More videos on this topic are available on our DC- DC Converters playlist https://www.youtube.com/playlist?list=PLOFm1WdHpufBnZXwjxSU2qGSs5r_uEhav Visit us at: http://www.vicorpower.com/"
Views: 3941 Vicor Corporation
#askLorandt explains: DC/DC Converter Voltage Ripple vs. ESR of Different Capacitor Technologies
 
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Lorandt explains the influence of the ESR on the voltage ripple at the output of a buck converter. For this purpose, he measures the output voltage of three identically constructed buck converters. Only the output capacitor is different on each converter - Aluminum electrolyte, Aluminum polymer or MLCC. Follow #askLorandt on Twitter (@askLorandt), visit his website at http://www.we-online.com/askLorandt and connect with him on LinkedIn: http://de.linkedin.com/in/lorandtfoelkel Check the product catalog regarding capacitors: http://bit.ly/2ngBjRQ Follow us on: Facebook: http://www.we-online.de/facebook/WE_Karriere Facebook: http://www.we-online.de/facebook/WE_eiSos_Group Instagram: http://www.we-online.de/instagram/WE_Karriere Instagram: http://www.we-online.de/instagram/wespeedupthefuture Twitter: http://www.we-online.com/twitter LinkedIn: http://www.we-online.com/linkedin Xing: http://www.we-online.com/xing YouTube: http://www.we-online.com/youtube Newsroom: http://www.we-online.de/newsroom More info about Würth Elektronik eiSos: http://www.we-online.com
Power Tip 21: Watch that capacitor RMS ripple current rating
 
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In this Power Tip Robert Kollman discusses a mistake designers make often and that is putting too much ripple current into a capacitor that may shorten its lifetime.
Views: 4785 Texas Instruments
DC DC Buck Converter 3
 
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Continuous mode & discontinuous mode mathematical development
Views: 44217 abuhajara
Onstate #78: 600W UC3843 DC-DC CC CV step-up boost converter module power supply LED testing
 
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Testing of a standard eBay/Asia 600W DC-DC step-up boost converter regulator with a high power 36V LED bulb. 12.6V input to simulate battery voltage. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO. General specifications: DC-DC 600W 10-60V to 12-80V Boost Converter Step-up Module Car Power Supply. Unbranded generic type. Input: 10-60V, 15A, 15A fuse Output: 12-80V, 10A Efficiency: up to 95% Dimensions: 85x63*65mm Main components: UC3843 fixed frequency current-mode PWM controller. 8-SOP. UC3843 internal 8.5V(on) and 7.9V (off) UVLO. LM358 dual op-amp. 8-SOP. CC sensing to UC3834 Isense pin. 63V 1000uF input capacitor, JWCO VENT brand. 470uF 100V output capacitors, JWCO VENT brand. BU806 NPN TO-220, set as regulator at 10.8V out. 72N10N MOSFET N-CH 100V 80A TO-220 B20100G 100V 20A dual schottky diode TO-220 11.1mOhms currnt shunt. 18uH power inductor, 14x31mm. Testing measurements: Oscilloscope CH1= switching waveform (MOSFET/Inductor). 10V/div. 10uS/div. Oscilloscope CH2=output waveform. +out. 1V/div Power supply=input power. Meter1 (gray)=output current. Meter2 (red)=output voltage. Switching frequency: 36kHz. Under-voltage lock-out: 10.4 off, 10.8 on. Maximum output voltage at no load is 95V. Load: 100W 36V high power LED bulb. Efficiency: [email protected] out/[email protected] in= 88.9%. [email protected] in=89.7%, [email protected] in =86.5%, 50mV current ripples. At past 1:36 time, adjustments in CC mode. -Boost module functional with CC and CV control. Good switching signal up to 36V output. Unsteady switching signal at higher output power ranges. At higher than 36V out (57W), adjusting the input voltage does not significantly help improve switching stability. Feedback stage to switching IC may not be optimised. -Lack output/input bypass capacitors to reduce switching current spikes. 1uF and 0.1uF caps ceramic caps required. -Low-quality Vent brand caps. -Inductor too low for switching frequency. Recommendation: Boost module is operational for general applications up to 60W at 12V in. Higher power outputs maybe acceptable if output noise and unsteady switching is not a concern. Boost converter modifications may be required for +100W power usage. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Views: 6730 Onstate LED Lighting
Boost  Converter
 
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Intuitive analysis of the Boost converter by Prof. Sam Ben-Yaakov.
Views: 17580 Sam Ben-Yaakov
Active Ripple Filters for switch mode converters
 
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An intuitive explanation of various active filters for ripple suppression.
Views: 3746 Sam Ben-Yaakov
Electronics capacitors series 3 Used to smooth rectified AC voltage and switch bounce explained
 
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I use a diagram to explain how a capacitor can be used to smooth out AC voltages after they have been rectified by a full wave bridge rectifier into varying DC voltages. I also use a simple switch controled LED circuit to demonstrate mechanical switch bounce and how a capacitor can keep the circuit powered during those brief moments of loss of power from the power source.
Views: 1027 electronzapdotcom
Boost Converters (DC-DC Step-Up) - Electronics Intermediate 1
 
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A look into how boost converters work in a very visual format. Try this circuit: http://goo.gl/nkHq9H Boost Converter Wiki: https://en.wikipedia.org/wiki/Boost_converter Software: Everycircuit.com If you would like to support me to keep Simply Electronics going, you can become a Patron at https://www.patreon.com/SimplyElectronics
Views: 297417 Simply Electronics
SMPS Buck Converter Design Example Part 1 of 2
 
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http://www.microchip.com/SMPS This is a design example of a simple Buck DC-DC converter. In this example we will calculate the required inductor and output capacitor specifications. We will then determine the input capacitor, diode, and MOSFET characteristics. With the selected components, we will calculate the system efficiency and then compare an asynchronous buck converter to a synchronous buck converter.
Views: 51496 Microchip Technology
Review of SZBK07 300W 20A  Buck converter 1.2V to 36V with constant Current
 
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This video is review of a module titled on eBay as DC 300W 20A CC CV Constant Current Adjustable Step-Down Converter based on MOSFET IRFB3607. 00:55 Hardware explained 03:46 MOSFET is removed 04:37 Voltage Regulation is tested Tests: 05:33 30V Input and 24V, 15V, 12V, 9V, 5V and 3.3V output 08:35 24V Input and 15V 12V, 9V, 5V and 3.3V output 11:26 15V Input and 12V, 9V, 5V and 3.3V output 13:34 12V Input and 9V, 5V and 3.3V output 15:12 9V Input and 5V and 3.3V output 16;03 Ripple voltage is measured View Datasheet for IRFB3607 MOSFET https://www.infineon.com/dgdl/irfs3607pbf.pdf?fileId=5546d462533600a401535636a42b2176 Tutorial by Robojax.com Get other projects code and learn Arduino http://robojax.com/learn/arduino follow me on Facebook http://fb.me/robojaxEdu
Views: 1512 Robojax
Inductive spiking, and how to fix it!
 
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A description of inductive spiking, why it happens, and how a diode can save your circuits. Make sure you enable annotations as there is an error in one of the diagrams. 100 diodes for $2 on Amazon: http://www.amazon.com/exec/obidos/ASIN/B00LUJFFAU/afromods-20 Check out my webpage for more handy electronics tutorials http://www.afrotechmods.com
Views: 311976 Afrotechmods
How to design a Boost Converter ( Hindi ) [ Eng Sub ]
 
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In this video, shows how a Boost converter design, How to design of boost converter and find the parameter of Boost converter L and C value. Design of boost converter depends on the value of L and C. In this video the values of L and C calculation is done. For standard value of the inductor and capacitor, you can search online. ** 1.Boost Converter using MATLAB Simulink (2016), Simulation with an Example https://youtu.be/VzWDJQJN9lM Music: https://www.bensound.com
Views: 5450 Techno Trip
Fundamentals of Power Electronics - Buck-Boost Converter Basics
 
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Here, we introduce the buck-boost converter topology and it's two switching operation modes. We derive the relationship between the input voltage, average output voltage, and active switch duty ratio.
Views: 68977 katkimshow
Onstate #76: XL6009 DC-DC boost converter.  Power-up with capacitor delayed enable function testing.
 
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Testing of a standard low-cost eBay/Asia XL6009 DC-DC step-up converter regulator. This is a lower cost, lower quality version of other available models. See XLSEMI XL6009 datasheet for more information. See Onstate video #75 for more testing results. Many low-cost boost converters do not have a soft-start circuit which allows it to slowly ramp-up to full output during the power-up cycle. Soft-start is not as important if the load is applied after boost converter power-up. It is a concern when using current-limited power sources such as bench and some AC/DC power supplies. During the power source start-up from 0-pre-set voltage, the boost converter will take as much current as required to boost to the necessary output power required. The current required at low input voltages may be excessively high which will cause the power source to go into current-limiting or short-circuit mode. A soft-start circuit in the boost converter allows the power source to reach full power first. Soft-start can also be used for buck converters. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO. General specifications: DC-DC Adjustable Step-up boost Power Converter Module XL6009 Replace LM2577. Unbranded generic type. Input: 3-32V Output: 5V-35V Switching: 400KHz, 4A Efficiency: up to 94% Out ripple: 50mV Load Regulation: ±0.5% Voltage Regulation: ±0.5% Dimensions: 43x21x14mm Boost converter soft-start modifications: XL6009 enable pin to ground is OFF. 0.22uF cap from ground to IC enable pin (#2). 330k resistor from +Vin to IC enable pin. During first power-up, the voltage at the enable pin will slowly increase due to capacitor/resistor charge-up operation. The time-delay prior to full IC ON operation maybe sufficient for the power source to reach full voltage/power output. Testing measurements: Main components: XL6009 IC, 220uF 35V cap, 100uF 50V cap, SS34 diode, 47uH inductor Oscilloscope CH1= switching waveform (IC pin 3). 5V/div. 1uS/div. Switching frequency: 224kHz. LM2577 is 52kHz 3A, XL6019 is 220kHz 5A. XL6009 is 400kHz 4A. IC in boost module may not be original XL6009. Output: 24.0V, load=1.2A (20 ohms). Input =12V 2.7A, CC limit at max. (3.3A) Yellow alligator clip connected to +Vin for IC enable function=ON (bypass soft-start). During power supply power-up with the soft-start circuit enabled, the boost converter is able to reach full output prior to the power supply in current-limiting mode. Without soft-start (enable directly connected to +V), the power supply goes into current limiting mode. If the boost converter output was lower, the power supply may not go into protection mode. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Views: 5053 Onstate LED Lighting
Onstate 207: XL6009 SEPIC Buck-boost DC converter. Switching Waveform and Voltage Testing
 
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Testing of a standard low-cost eBay/Asia XL6009 buck-boost step up/down DC-DC converter regulator. The XL6009 is setup as a single-ended primary-inductor converter (SEPIC ) buck-boost DC converter. This type of DC-DC switching converter uses a boost topology with an inductor coupled with a series capacitor and another inductor for buck-boost operation. A Cuk DC converter is a similar setup with an inverted output. All the power transferred through the inductors and series capacitor. See XLSEMI XL6009 datasheet for more information. Schematic is similar to page 7 (figure 6) from the datasheet. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO. General specifications: DC-DC Boost Buck adjustable step up down Converter XL6009 Module Voltage Model : D-SUN DSN6000AUD non- isolated, non- synchronous Input: 3.8-32V DC 3A max. Output Voltage: 1.25V-35V. Switching: 4A MOSFET up to 94% eff, 400KHz, Output Ripple: 50mV Load Regulation: ± 0.5% Voltage Regulation: ± 0.5% Dimensions:48mm x 25mm x 14mm ( L * W * H ) Application: Car regulator, solar photovoltaic, wind power and other applications of voltage instability. Parts: XLSEMI XL6009 400kHz boost converter, TO-220-5. 2x 47uH inductors. 2x SS34 Schottky diodes. 3.3uF cer. cap. Series between inductors (Cdc). 2.2uH output filter inductor. Setup: DC power supply. load resistors. DMM: voltage output. Oscilloscope CH1 (top)= series cap input switching waveform. 2uS/div Oscilloscope CH2= series cap output switching waveform. 2uS/div Testing Measurements: -Switching frequency: 185kHz. LM2577 is 52kHz 3A, XL6019 is 220kHz 5A. XL6009 is 400kHz 4A. IC in boost module may not be original XL6009. Load testing, power resistors. 1) 12V 0.71A, 12V 20 ohms out. = 85% 2) 12V 1.5A in, 12V 10 ohms out. = 80% 3) 24V 0.73A in, 12V 10 ohms out. = 82% 4) 24V 037A in, 12V 20 ohms out. = 81% 5) 24V 1.52A in, 12V 4.7 ohms out. = 84%. 6) 12V 3.15A in, 12V 4.7 ohms out. = 81% 7) 12V 0.56A in, 5V 4.7 ohms out. = 79% 8) 12V 0.27A in, 5V 10 ohms out. = 77% 9) 24V 1.4A in, 24V 20 ohms out. = 86% 10) 24V 3.02A in, 24V 10 ohms out. = 79% output voltage drops 1V/s. - Output noise= 1Vp-p - Output noise ripples= low. - Output regulation=acceptable. - CV output adjustment=slight delay. - No undervoltage lock-out (UVLO). High input current at low input voltages. Best to keep Vin above 10V for high power applications. - Module got warm quickly at high output currents. - Switching is stable through input/output ranges. - Higher output power and efficiency possible by increasing series pass capacitor. Recommendation: Works as designed. Stable switching. Good up to 2A output. Moderate efficiency, no UVLO and not spec IC limits the module to hobbyist general applications. Subscribe for technical support. Please read description and product datasheet before
Views: 1071 Onstate LED Lighting
Onstate 212: DC-DC Converter output noise filtering.  Effect of adding R,L,C.
 
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TPS40057 synchronous external N-CH MOSFET DC buck converter module output noise filtering. See Onstate 109 for TPS40057 testing. See TI TPS40057 datasheet and schematic for more information. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO. General supplier (eBay) specifications: DC-DC Buck Step Down Synchronous Rectification Applied Power Supply Module Input voltage: 9-35V Output voltage: 5V fixed Converter: DC synchronous N-CH MOSFET Output Current: 5.0A (max) Efficiency: Very high. Dimensions: 45x31x16mm (module) Parts: TPS40057 (8-40V HTSSOP), 6.1uH power inductor (CDEP1411NP-6R1MC-95, 6R1ML), TPCA8016-H (obsolete) N-Ch 60V 25A SOP-8, CLS03 schottky diode (input polarity), 35V 470uF ele. cap (JAKEC 105°C), red power LED. Testing measurements: -Switching frequency: 265kHz. -Oscilloscope CH1= output voltage at DC converter (top trace). AC 0.1V/div. 1uS/div -Oscilloscope CH2= output at load resistor (bottom trace). AC 1.0V/div. -Power supply input voltage and current. DMM =output voltage. -Load testing, 4.0 ohm resistors. 1) no extra filtering. CH1=CH2. Vp-p=300mVp-p, AC ripples=60mVp-p 2) C1=1.0uF. Vp-p=CH1/CH2 little change, CH2 AC ripples= 116mVp-p 3) R=0.1 ohm, C1=1.0uF, Vp-p=CH1/CH2 slight change, CH2 AC ripples=93mVp-p, DMM=4.88V 3) L=100uH, C1=1.0uF, CH1 Vp-p=400mV, CH2=171mVp-p, CH2 AC ripples=5mVp-p, DMM=4.82V 4) L=100uH, C1=1000uF, same as test 3. 5) C1=1000uF, CH2=100mVp-p, CH2 AC ripples=30mVp-p. 6) L=20uH, C1=1000uF, CH1 Vp-p=350mV, CH2=175mVp-p, CH2 AC ripples=5mVp-p, DMM=4.96V 7) 12" wire on +. CH1 Vp-p=400mV, CH2=200mVp-p. CH1/CH2 ripples same. - Series resistor decreases output voltage with little effect on AC noise. - Small capacitor increased AC ripples. - Large capacitor decreased output noise and ripples. - Series inductor drastically decreased output AC ripples with some decrease in Vp-p noise. - A long wire increased induced noise pickup with little decrease in AC noise. A ferrite core with/without a loop will slightly decrease the Vp-p noise with little effect on AC ripples. Recommendation: Module is operational as designed. A series inductor provides highest noise reduction. The switching Vp-p noise is harder to reduce. The PCB layout and component selection has the most effect in stable operation and output noise reduction. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Views: 1003 Onstate LED Lighting
Power supply ripple and how to measure it
 
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Power supply ripple and how to measure it. http://www.natureandtech.com
Views: 23127 NatureAndTech
Buck converter vs. linear voltage regulator - practical comparison
 
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In this video I'm comparing in practice a buck converter with LM7805 linear voltage regulator. Two driver boards from old hard drives are used as a dummy load to check efficiency and temperature of the buck converter and linear voltage regulator. I'm presenting pros and cons of both devices. There are 2 mistakes in my calculations: 1. 5:02 - 5:08 - correct calculations should be: (12V - 5V) x 0.42A = 2.94W 2. 5:17 - 5:23 - correct calculations should be: (12V - 5V) x 0.22A = 1.54W I double checked everything, but I should have triple checked. I'm sorry for my mistake. Subscribe to get notified about my new videos: http://www.youtube.com/subscription_center?add_user=electronfuncom ---------------------------------------------------------------------------------------------- YouTube channel: https://www.youtube.com/user/electronfuncom Google+: https://plus.google.com/+Electronfuncom Facebook: https://www.facebook.com/ElectronFunPage Twitter: https://twitter.com/ElectronFun Website: http://ElectronFun.com ---------------------------------------------------------------------------------------------- Video, edit, voice by Chris Lorkowski Music composed and performed by Bensound - The Lounge http://www.bensound.com
Views: 575663 ElectronFun.com
Fundamentals of Power Electronics - Buck Converter in Discontinuous Conduction Mode (DCM)
 
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The derivation of the voltage relation for a buck converter with a resistive load in discontinuous conduction mode (DCM). It's a long derivation... O.O
Views: 17166 katkimshow
DC - DC Converter  Failure analysis - Electronic Repair
 
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This DC converter had worked for about one year before failing. It was powering an antenna and Ethernet switch which drew around 0.5 Amp.The input voltage was nominally 12 volts from a solar panel and the output 24 volts. The converter is based on the common UC3843 chip.With no load the unit operates OK with 24 volts output. As soon as the load is applied the output voltage drops. On visual inspection the problem appears to be the input capacitor. Examining the capacitor under a microscope confirms it is damaged. The capacitor is also tested with a capacitance meter and an ESR meter. The capacitor is replaced and the converter tested for correct operation. Click Here to Subscribe http://bit.ly/1nformatica Digital Microscope http://bit.ly/USBuscope Good source of electronic parts: http://bit.ly/ElecComps DISCLAIMER: Unless otherwise stated all products shown in this video have been purchased personally. The description and video may contain links to products which might be affiliate links, so if you click on one of the product links I could receive a small commission. This does not affect the price you pay. If you do purchase through my affiliate link this will help fund future videos, thank you for your support! #1nformatica
Views: 1593 1nformatica
Onstate 185: RD DPH3205 Buck-Boost DC Converter Switching Waveform Testing
 
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Switching waveform testing of a DPH3205 buck-boost DC converter. Specifications: Rui Deng DPH3205 160W Buck-boost Converter Constant Voltage Current Programmable Digital Control Power Supply Module Color LCD Voltmeter Input: 6V-40V, 10A max. Output: 0V-32V, 5A max. 160W Output ripple: 100mVp-p Output voltage resolution: 0.01V Output current resolution: 0.001A Output Voltage accuracy: ± (0.5% + 1 digit) Output Current accuracy: ± (0.5% + 3 digits) Temperature: -10°C to 45°C Weight: ~227g Display module: 79x43x41(mm) (L*W*H) Power module: 93x71x41(mm) (L*W*H) The module boosts (step-up) the input voltage to a set 36VDC output, then bucks (step-down) to the required output voltage. Parts: 1. K0660 (Q4/5): 60V, 40A, 5.1mOhms, N-Ch MOSFET. Input power protection. 2. LTC1871 (LTSXES, U3): 2.5V-36Vin, no Rsense, current mode boost, flyback and SEPIC Controller, external N-CH MOSFET, MSOP-10. Boost mode regulation. 3. XL7005 (U03): 0.4A 150KHz 65V buck DC-DC, SOP8-EP. Pre-regulator. 5Vout. 4. 7133H (U4): 3.3V, LDO, uController regulator, SOT-89 5. STK17 (U5): 3.3V, LCD regulator, SOT-89 6. RB085T-60 (D6/): Schotty diode array, 60V 5A, TO-220-3 Full Pack. 7. TL594CN: PWM control circuit, SOIC-16. Buck mode regulation 8. SGM8582 (U2): 2.5V-5.5V op-amp, SOIC-8. 9. LM321M (A63A, U3)): single op-amp, SOT-23-5 10. MT3608 (B6286, U01): 2V-24Vin, 4A internal MOSFET, boost DC-DC, SOT23 11. AOD2810: 80V 46A, N-CH MOSFET. Boost switch (under heatsink). 12. AOD409: 60V 26A, P-CH MOSFET. Buck switch (under heatsink). 13. STM32F100: main uController 14. 9uH inductor: input boost converter. 15. 53uH inductor: output buck converter. 16. 470uF 50V electrolytic capacitors (3x) 17. 470uF 63V electrolytic capacitors (2x) 18. 220uF 35V electrolytic capacitor. 19. Current shunt resistors. 20. Display and control module. Testing Setup: DMM: Output voltage measurements. DC adjustable power supply. CH1 (top trace): Switching MOSFET gate. CH2 (bottom trace): Switching inductor. Load: 6.0 ohms power resistors. Testing Results: Test1: Boost mode (boost to 36V output). N-CH MOSFET gate: 5.3Vgate, 13.4Vp-p Vspike, 100kHz switching frequency, acceptable square wave. Inductor: Constant 36V switching, some ringing. Test2: Buck mode. P-CH MOSFET gate: 10.5Vgate, 13.4Vp-p Vspike, 68kHz switching frequency, clean stable square wave. Inductor: Constant 36V switching, stable square wave. Output: 0-32.0V output, 100-150mVp-p output ripples, 1.8Vp-p Vspikes. Stable switching. -83%-90% overall efficiency. -Stable output voltage. -Voltmeter measurements acceptable. -Extra filter inductor and capacitor required to filter output switching voltage spikes. -Output power start-up is quick and stable with minimal overshoot. -Quick input power loss will cause the module to reboot. -Good for resistive loads. -Fairly quick load transient response. Recommendation: Good overall design/layout. Functions as designed. Good overall efficiency. Output noise may cause interferrence with load electronics. Pass preliminary testing as a good, economical hobbyist programmable power supply. UPDATE: Further testing suggests that the module is best for resistive loads and loads in constant voltage operation. Constant current battery charging maybe acceptable. Constant current LED loads works best with LED panel connected before module power-up. If module output power is on without the LED module connected, LED module failure may occur due to high surge current from slow feedback response. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Views: 1329 Onstate LED Lighting
Dc to dc boost converter
 
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Dc to dc Boost converter . When the switch is opened, current will be reduced as the impedance is higher. The magnetic field previously created will be destroyed to maintain the current towards the load. Thus the polarity will be reversed (means left side of inductor will be negative now). As a result, two sources will be in series causing a higher voltage to charge the capacitor through the diode . DC-DC BOOST CONVERTER DC
Views: 444 HAMZAH AHMED
Step Up And Down Boost Converter Dc-Dc 3v To 38v  In Urdu Hindi
 
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You Can Buy This Module From Here! https://goo.gl/JPjX7k For More Visit SmartEshop.pk/Shop Hi Guys This is a DC-DC boost converter step-up power module with high-precision potentiometer, and it uses XL6009E1 with the second generation of high-frequency switching technology as core chip, so that its performance is much higher than the first-generation technology LM2577. With high switching frequency of 400KHz, even small-capacity filter capacitors can bring with very nice results, while the ripple is less and the size is smaller. Specifications: Input voltage range: 3V-32V (the best working voltage range is 5-32V) Output voltage range: 5V-35V With built-in 4A MOSFET switch tube, the efficiency can reach up to 94% (current of LM2577 is 3A only) Ultra-high switching frequency up to 400KH. A small-capacity filter capacitor can achieve very good results, while with smaller ripple and size. (frequency of LM2577 is 50KHz only) __/Contect Us\_ ► Website:➜www.mrengineerpk.blogspot.com ► Facebook Page:➜ https://web.facebook.com/MrEngineerpk/ ► Facebook Group:➜https://www.facebook.com/groups/274894166291057/ ► Twitter:➜ https://twitter.com/Chaloay62 ► Google+:➜ https://plus.google.com/b/113564937800036615715/113564937800036615715 __|Watch More Videos|_ ♥Mini Power Inverter 12v Dc To 220V Ac https://youtu.be/iwCp3zkiicQ ♥Gas Soldring Iron Review! https://www.youtube.com/watch?v=RBLEWWd4lTM ♥How To Make UPS Power Inverter Full Detail https://www.youtube.com/watch?v=dnimjdJIeMU ♥All China Lcd/Led Softwere. https://www.youtube.com/watch?v=PmLRs7x32y4 ♥Electric Wiring Of Home. https://www.youtube.com/watch?v=hJdrU49STI0 ♥How To Run Wifi Router On Power Bank And 12v Battery. https://www.youtube.com/watch?v=G1igtisvPIY ♥Automatic Street Light Sensor https://www.youtube.com/watch?v=YFL-bLnwWmI ♥Control Your Fan And Light With Remote https://www.youtube.com/watch?v=b5QMXqT4oJc
Views: 36534 Mr Engineer
Switch mode power supply tutorial: DC-DC buck converters
 
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I explain buck converters (a type of switch mode power supply) and how to build a 5V 5A power supply using an LM2678. Website: http://www.afrotechmods.com/ Parts: http://octopart.com/bom-lookup/781DMaFT Schematic: https://i.imgur.com/iwWnvXv.jpg
Views: 595304 Afrotechmods
Onstate 117: Modified, stable MP2307 mini synchronous DC buck converter module testing.
 
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Monolithic Power MP2307, 3A, 23V, 340kHz synchronous rectified step-down converter. Resistive load testing. Capacitors added for switching stability. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO. See MPS MP2307 datasheet and schematic for more information. Similar design to MP1582 28V 2A and MP1584 28V 3A DC non-sync buck converter. Synchronous rectification provides better efficiency at higher current loads. General supplier (eBay) specifications: Mini-360 DC-DC 4.75V-23V to 1V-17V Buck Converter Step Down Power supply (ultra small size DC-DC synchronous rectifier buck module) Input voltage: 4.75V-23V Output voltage: 1.0V-17V Output Current: lowering the value of 3A, long 1.8A Conversion efficiency: 96% (maximum) Switching Frequency: 340KHz Output ripple: 30mV (no-load) Load regulation: ± 0.5% Voltage regulation: ± 2.5% Dimensions: 18x12x5mm Parts: MP2307 340kHz sync IC SOIC-8, 10uH power inductor, 50k VR trimmer, 2.2uF caps. Modifications (see schematic on datasheet): 1. Add extra in/out filter caps. C1 and C2. 4.7uF - 10uF ceramic caps, low ESR, 25V, 1206 SMD or electrolytic. 2. Feedback filter (Cfb). 0.1uF 0603 SMD on pin 5 to GND (parallel R2). 3. Comp filter (COMP). 0.01uF 0603 SMD on pin 6 to R3 (parallel C3). Changing C2 (SS) and C5 (BS) has little effect. Testing measurements: -Switching frequency: 340kHz. -Oscilloscope CH1= inductor switching waveform (top trace, +IN). 10V/div. 1uS/div -Oscilloscope CH2= output noise waveform (bottom trace). AC 1V/div. -Power supply input voltage and current. -DMM meter = output voltage. -Load testing, power resistors. 1) 12V 0.21A in, 3.33V 4.7 ohms out. = 93% 2) 5V 0.49A in, 3.33V 4.7 ohms out. = 96% 3) 12V 0.48A in, 5.07V 4.7 ohms out. = 95% 4) 23V 0.26A in, 5.04V 4.7 ohms out. = 90% 5) 22.9V 0.69A in, 12.04V 10 ohms out. = 92%. Output stable throughout, low ripples, Stable switching. Power ON/OFF has stable output (minimum overshoot). Good regulation. High efficiency. NOTE: Small 7x7x3mm 10uH inductor is good to 1A only. Pass short-circuit test. Stable output load transient testing. Unstable switching induces noise into the system and can cause audio noise to be heard or cause unreliable operation. Recommendation: Stable regulator. Good to 1A output. Suitable to replace 78xx linear regulator in many applications. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Views: 4536 Onstate LED Lighting
USB Charge Module Buck Boost converter 2.1a
 
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This is a review of the cheap USB charge module that you can get from ebay. Benchmark against a common Apple 12w power adapter http://www.ebay.com.au/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313.TR0.TRC0.H0.XUSB+Charger+Module+6-24V.TRS0&_nkw=USB+Charger+Module+6-24V&_sacat=0 Features: - The max output current 3A, long time use 2.1A, enough use - New design, 3 solid state ceramic capacitors(MCC), more safe and low ripple - Synchronous rectification, High efficiency, 6.5V to 5V 0.7A can up to 97.5%, 12V to 5V 1A can up to 94% - Flat copper inductor, improve conversion efficiency - With output overvoltage protection. There is 1.5A fuse, output 5V have 300W TVS tube protect your USB device - Using the latest USB identification circuit, perfectly compatible with IPHONE, the most of Android phones, IPAD etc - High quality USB port - Output voltage indicator (RED) - Small size, 26.4 (L) * 15 (W) * 7.4 (H) mm - Input with reverse polarity protection diode, will not damage when input connect incorrect - Ultra-low static current, 0.85 mA only. Do not need to add swith when connected to the car battery, can be connected to car cigarette lighter cable or ACC power supply cable Module Parameters: Module Properties: non-isolated buck module (BUCK) synchronous rectification Input voltage: DC 6-24V Output voltage: 5.1-5.2V Output current: 3A MAX (please enhance heat dissipation when full load using), the actual test result input 12V output current 2A do not need to enhance heat dissipation. Conversion efficiency: can up to 97.5% (6.5V step down to 5V 0.7A) (after short reverse protection and fuses test value) Switch frequency: 500KHz Output ripple: 10mV around (12V to 5V3A) 20M bandwidth Output indicator: Output voltage indicator is red Operating temperature: Industrial grade (-40 ℃ to + 85 ℃) (the higher the ambient temperature, the lower the output power) Output overvoltage protection: Yes, input 1.5A fuse, output 5V have 300W TVS tube clamp protection. Full load temperature: 30 ℃ Static current: 0.85 mA Load regulation: ± 1% Voltage Regulation: ± 0.5% Dynamic response speed: 5% 200uS Output short circuit protection: Yes, but please do not short circuit for a long time Input reverse polarity protection: Yes, there is reverse polarity protection diode Connection mode: Welding Input mode: Welding Output mode: USB
Views: 2256 Michael Bonny
EEVblog #594 - How To Measure Power Supply Ripple & Noise
 
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Fundamentals Friday Dave explains what the ripple and noise specifications on a power supply is and how to measure it using different methods on both analog and digital oscilloscopes. From bad techniques through to good, showing the effect of each one. Traps for young players aplenty in this one. How do you detect common mode noise issues and ensure that the signal you are measuring is really coming from your device under test? Single ended & differential measurement, DIY coax solutions, termination, analog vs digital oscilloscopes, bandwidth limiting, and even oscilloscope probe coax construction issues. It's all here. Mysteries of X1 oscilloscope probes revealed: http://www.youtube.com/watch?v=OiAmER1OJh4 How to track down common mode noise: http://www.youtube.com/watch?v=BFLZm4LbzQU Opamp Noise voltage tutorial: https://www.youtube.com/watch?v=Y0jkPLuFdnM Forum: http://www.eevblog.com/forum/blog/eevblog-594-how-to-measure-power-supply-ripple-noise/ EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: http://www.eevblog.com/donations/ Projects: http://www.eevblog.com/projects/ Electronics Info Wiki: http://www.eevblog.com/wiki/
Views: 168729 EEVblog
A primer to: Multiphase Buck Converters
 
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An intuitive explanation of the multiphase Buck converter and its advantaged for low output voltage high current applications.
Views: 1623 Sam Ben-Yaakov
How to decrease inductor size in a 10A DC/DC converter design
 
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Buck converters have been the entrenched workhorses of the power supply industry for decades. Here at TI, we are excited to introduce a new dc-dc converter top
Views: 3491 Texas Instruments
High Capacitive Load DC-DC Converters: Startup Characteristics
 
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Calloway Cass, Sr. Design Engineer at VPT, discusses the startup characteristics of DC-DC power converters with a high capacitance load, which are used to reduce the output ripple, improve the peak transient response, and to supply high pulse current loads. Demonstration includes startup with and without capacitance applied in constant resistance and constant current mode. http://www.vptpower.com/ See all of VPT's videos on technical issues for incorporating DC-DC power converters, EMI filters, and other power products into your avionics, military, or other high reliability power system: http://www.vptpower.com/video/
Views: 2238 VPT Tech Videos
Flyback converter
 
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An intuitive explanation of the basic design and operation of the Flyback DC-DC converter topology.
Views: 50218 Sam Ben-Yaakov
Mod-01 Lec-02 DC -- DC converters
 
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Pulse width Modulation for Power Electronic Converters by Dr. G. Narayanan,Department of Electrical Engineering,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in
Views: 123926 nptelhrd
RD DPH3205 buck-boost step-up and step-down converter 32v/5A Operation and test
 
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RD DPH3205 buck-boost digital power supply is the only one step-up and step-down converter. input 6-40v, output 0-32V, input current 0-10A, output current 0-5A. power 160W. step-up and step-down converter is the main feature. this vedeo contain: package , connection, operation, knids protection, at full load test, ripple , temeperature this is the page https://www.aliexpress.com/store/product/RD-DPH32305-Constant-Voltage-current-Buck-boost-Programmable-digital-Power-Supply-buck-Voltage-converter-color-LCD/923042_32762131242.html any one want to buy this , and say you are from RD tect channel, I will give you some discount .
Views: 5946 Rd Tech
Boost Converter simulation using simulink MATLAB / DC-DC step up converter
 
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Boost converter simulation/modelling using simulink MATLAB. A boost converter (step-up converter) is a DC-to-DC power converter with an output voltage greater than its input voltage. It is a class of switched-mode power supply (SMPS) containing at least two semiconductors (a diode and a transistor) and at least one energy storage element, a capacitor, inductor, or the two in combination. Filters made of capacitors (sometimes in combination with inductors) are normally added to the output of the converter to reduce output voltage ripple. Buck Converter: https://www.youtube.com/watch?v=ojlw4o8TiAM
Views: 82031 Saad Aamir
Onstate 198: FP5139 SEPIC Buck-Boost DC 30W 2A Converter Module Testing
 
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Testing of an eBay FP5139 single-ended primary-inductor converter (SEPIC ) buck-boost DC converter. This type of DC-DC switching converters is setup similar to a boost converter using an inductor coupled with a series capacitor and another inductor for buck-boost operation. A Cuk DC converter is a similar setup with an inverted output. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO. See FP5139 datasheet and schematic for more information. General supplier (eBay) specifications: DC-DC 5-25V to 0.5V-25V 2A 30W Adjustable Buck Boost Power Converter Module Car Input: 5-25V, 2A max. Output: 0.5-25V(Adjustable), 2A, 30W max. LED: Input power indicator ON/OFF enable: Header jumper. Dimension: 48x26x13mm Parts: FP5139 boost IC TSSOP-8L, 2x power inductor (10x9x10mm), 20k VR trimmer, 220uF in/out caps, 10V zener, AOD4184 N-CH MOSFET, 6CWQ06FN dual Schottky diodes. Testing measurements: Resistive load testing. - Switching frequency: 407kHz. - Oscilloscope CH1= N-CH gate, switching waveform (top trace, +IN). 5V/div. - Oscilloscope CH2= N-CH output, inductor waveform (bottom trace). 10V/div. - Power supply input voltage and current. - DMM meter = output voltage. 0.51-32.6DC output. Load testing, power resistors. 1) 12V 1.38 in, 12.0V 10 ohms out. = 87% 2) 12V 0.28A in, 5.0V 10 ohms out. = 74% 3) 12V 0.52A in, 5.0V 4.7 ohms out. = 85% 4) 12V 2.0A in, 10V 4.7 ohms out. = 89% 5) 12V 3.06A in, 17.54V 10 ohms out. = 84%. 6) 24V 1.03A in, 10V 4.7 ohms out. = 86% - Module got hot quickly at high output currents. - Switching is stable through input/output ranges. Stable output voltage. Low outpu ripples. Up to 1.0Vp-p ouput spikes. - Slow switching gate slew rate from high operating frequency. - No undervoltage lock-out (UVLO). High input current at low input voltages. Best to keep Vin above 10V for high power applications. - No short-circuit protection (SCP). Power supply high current limiting required. A quick drop in input voltage will cause the FP5139 to shut-off the output. Input power reset required. Recommendation: Works as designed. Stable switching. Pass preliminary testing. Good for 20W 2A output. Modifications required for UVLO, faster switching slew rate, SCP, and reduce output voltage spikes. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Onstate 206: HX4002 Step Up/Down Buck-Boost Charge Pump DC-DC Converter Regulator
 
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Testing of a standard eBay/Asia capacitor charge-pump DC/DC converter regulator. See HX40002 datasheet for more information. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO Supplier specifications: Low Noise, Regulated Charge Pump DC/DC Converter. 2 in 1 DC-DC Step-Down & Step-Up Converter module. Input: 1.8-5VDC Output: 3.3V+-4% fixed Output current: 100mA max. 150mA short time. SW frequency: 1.2MHz. Short-Circuit Protection No load input current : 0.65mA 2.54mm pin pitch, similar to 78xx TO-220 regulator Size: 11mm x 7.62mm x 4.5mm Weight : 0.5g Parts: HX4002-3.3 (N1IF) HEXIN SEMI, 2.7-5V, 1.2MHz, SOT-23-6 0.25A Max. 5.3uF input, 8uF switching, 7.7uF output. Testing: Adjustable DC power supply 20/40 ohms power resistor. DMM voltage output. Testing measurements: Switching frequency: 1.5-1.2MHz. Oscilloscope CH1(top)= capacitor pin 4 (C-). 2V/div. 0.2us/div. Oscilloscope CH2(bottom)= capacitor pin 6 (C+). 2V/div. 0.2us/div. TEST1: 0-5V input. No load. 3.3V steady output. Stable switching. Low current consumption. TEST2: 1-5V input. 40 ohms load. 3.3-3.4V steady output down to 1.8V. Stable switching. High efficiency at 1.9V to less than 50% at higher input voltages. Low noise output. TEST3: 1-5V input. 20 ohms load. 3.3-3.4V steady output down to 2V. Stable switching. Low efficiency at the 50%. Low noise output. Not suitable for higher than 3.4Vin at high loading. Recommendation: Module works. Stable switching at operating voltage ranges. Low efficiency. Acceptable for low current Li-ion battery powered applications. Subscribe for technical support. Please read description and product datasheet before comments/questions.
How Inductor works
 
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How an Inductor works How Inductor works The basics of how inductors work, a demo showing an inductor filtering out high frequency signals, a quick low pass LC filter, and a demo showing the magnetic field created around inductors. Some great articles on Inductor~~~~ What is Inductor : http://www.learningbuz.com/inductor/ How to make Inductor : http://www.learningbuz.com/how-to-make-inductor/ Buy all components Here : https://goo.gl/JYah69 tags: capacitores e inductores, induction lecture, induction levitation, induction lighting, induction lighting vs led, induction log, induction loop installation, induction loop system, induction motor, induction motor in hindi, induction motor lecture, induction variable, induction variable elimination, induction variable elimination in compiler design, induction video, induction video for new employees, induction voltage regulator, induction vs gas, inductor, inductor 10mh, inductor 22nh, inductor 500 mh, inductor and capacitor, inductor and capacitor circuit, inductor and capacitor in hindi, inductor and capacitor in parallel, inductor and inductance, inductor and inductance in hindi, inductor and resistor in parallel, inductor and resistor in series, inductor applications, inductor applications hindi, inductor back emf, inductor basic hindi, inductor basics, inductor basics animation, inductor behavior, inductor behavior with ac and dc, inductor behaviour, inductor blocks ac, inductor breadboard, inductor by niket shah, inductor capacitor, inductor capacitor resistor, inductor charging and discharging, inductor circuit, inductor circuit analysis, inductor coil, inductor concept, inductor concept hindi, inductor current, inductor current for dc supply, inductor definition, inductor definition and function, inductor definition in hindi, inductor design, inductor design for buck converter, inductor design nptel, inductor design pdf, inductor discharge, inductor discharge time, inductor diy, inductor efficiency, inductor electronics tutorial, inductor energy, inductor energy storage, inductor eq, inductor equation, inductor equation examples, inductor equivalent circuit, inductor experiments, inductor explained, inductor explanation, inductor filter, inductor filter design, inductor filter in hindi, inductor filter working, inductor filters in electronics, inductor for crossover, inductor for joule thief, inductor formula, inductor function, inductor function in ac circuit, inductor gif, inductor glass blaster, inductor glass removal, inductor graph, inductor graph voltage, inductor heating, inductor high frequency, inductor high voltage, inductor hindi, inductor how it works, inductor how to make, inductor hvac, inductor impedance, inductor in ac and dc, inductor in ac circuit, inductor in circuit, inductor in dc circuit, inductor in hindi, inductor in parallel, inductor in series, inductor in series and parallel, inductor joule thief, inductor kirchhoff's voltage law, inductor kya hai, inductor magnet, inductor making, inductor manufacturing, inductor manufacturing process, inductor measurement, inductor meter, inductor michel, inductor natural response, inductor noise, inductor north face, inductor nptel, inductor on dc, inductor on silicon chip, inductor op amp, inductor op amp circuit, inductor operation, inductor opposes change in current, inductor opposes current, inductor or coil, inductor oscillator circuit, inductor oscilloscope, inductor physics, inductor pics, inductor polarity, inductor power supply, inductor principle, inductor problems, inductor projects, inductor properties, inductor pspice, inductor purpose, inductor quality factor definition, inductor replacement, inductor resistance, inductor resistor capacitor circuit, inductor resistor circuit, inductor resistor circuit problems, inductor resistor in parallel, inductor resistor time constant, inductor ripple current, inductor rl circuit, inductor rms current, inductor saturation, inductor saturation current, inductor selection, inductor series, inductor spark, inductor spike, inductor store energy, inductor symbol, inductor symbol in autocad, inductor symbol in word, inductor tamil, inductor testing, inductor testing circuit, inductor testing procedure, inductor theory, inductor time constant, inductor transient, inductor transient response, inductor tutorial, inductor types, inductor usage, inductor use, inductor use for harmonics filter hindi, inductor use for power factor in high voltage line, inductor use in circuit, inductor used in dc circuit, inductor voltage, inductor vs capacitor, inductor vs transformer, inductor waveform, inductor winding, inductor winding calculator, inductor winding machine, inductor with ac source, inductor working, inductor working animation, inductor working in hindi, inductor working principle, inductor working principle animation, inductor youtube, inductores e inductancia, inductores en serie y paralelo, inductors and inductance, understanding inductor
Views: 838448 Tech Maker
DC-DC Boost Converter 12V (9v-20v) to 30V 200W Step-up Volt Regulator | best idea 2018
 
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best idea 2018 A boost converter (step-up converter) is a DC-to-DC power converter that steps up voltage (while stepping down current) from its input (supply) to its output (load). It is a class of switched-mode power supply (SMPS) containing at least two semiconductors (a diode and a transistor) and at least one energy storage element: a capacitor, inductor, or the two in combination. To reduce voltage ripple, filters made of capacitors (sometimes in combination with inductors) are normally added to such a converter's output (load-side filter) and input (supply-side filter). The key principle that drives the boost converter is the tendency of an inductor to resist changes in current by creating and destroying a magnetic field. In a boost converter, the output voltage is always higher than the input voltage. When the switch is closed, current flows through the inductor in clockwise direction and the inductor stores some energy by generating a magnetic field. Polarity of the left side of the inductor is positive. When the switch is opened, current will be reduced as the impedance is higher. The magnetic field previously created will be destroyed to maintain the current towards the load. Thus the polarity will be reversed (means left side of inductor will be negative now). As a result, two sources will be in series causing a higher voltage to charge the capacitor through the diode D. If the switch is cycled fast enough, the inductor will not discharge fully in between charging stages, and the load will always see a voltage greater than that of the input source alone when the switch is opened. Also while the switch is opened, the capacitor in parallel with the load is charged to this combined voltage. When the switch is then closed and the right hand side is shorted out from the left hand side, the capacitor is therefore able to provide the voltage and energy to the load. During this time, the blocking diode prevents the capacitor from discharging through the switch. The switch must of course be opened again fast enough to prevent the capacitor from discharging too much. Input voltage : 12V - 15V Input Current: Maximum input current 10A Output voltage : 12V --40V continuously adjustable Output current: maximum output current 10A ( adjustable ) Output power: the effective power P = input voltage V x 10A Conversion efficiency: up to 92-98% ( input voltage, current; output voltage and current impact of conversion efficiency ) download here: https://goo.gl/utrkkD
Views: 5244 Homemade DIY
#102 Mailbag #8 ESP32,Python, LoRa Antennas,Buck-Boost Converter, Assortments, Radar, etc.
 
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In this video I unpack the parts of the last weeks and show first test of the Pycom ESP32 module and a Buck-Boost Converter Links: Antennas: https://www.aliexpress.com/item/FM-Band-868MHz-waterproof-antenna-radio-receivers-antenna-RP-SMA-Male-inner-hole-3M/32711634998.html https://www.aliexpress.com/item/Free-Shipping-1pcs-Rubber-Antenna-868Mhz-2dbi-SMA-Plug-male/32677477408.html https://www.aliexpress.com/item/R-Angled-868Mhz-antenna-control-panels-and-radio-receivers-antenna-External-type-195mm-height/32704022621.html https://www.aliexpress.com/item/1pc-Vehicle-CAR-Horn-Antenna-868-MHz-Indoor-Antenna-3dBi-Gain-horn-patch-for-868mhz-module/32705257897.html https://www.aliexpress.com/item/1PC-868M-antenna-T-Bar-Adhesive-868-mhz-Antenna-Flat-patch-IP67-antenna-waterproof-868mhz-antenna/32707023844.html 5V / 5A power Supply: https://www.aliexpress.com/item/25W-5V-5A-Small-Volume-Single-Output-Switching-power-supply-for-LED-Strip-light/628334432.html GY-30 light sensor sensor/BH1750FVI: https://www.aliexpress.com/item/GY-30-The-digital-optical-intensity-illumination-sensor-BH1750FVI-of-module-for-arduino/32346673178.html Pycom Expansion Board: https://www.pycom.io/product/expansion-board/ Pycom 868 MHz LoRa Antenna: https://www.pycom.io/product/lora-antenna-kit/ PL9823 8mm Round RGB LEDs: https://www.aliexpress.com/item/5-1000pcs-DC5V-PL9823-F5-5mm-F8-8mm-Round-RGB-LED-P9823-chipset-inside-RGB-Full/32713415710.html Small LoRa Antennas: https://www.aliexpress.com/item/Rubber-Antenna-Small-size-RF-Antenna-3-0dBi-Antenna-Wireless-Communication-Antenna-868MHz/32747910436.html Connectors Assortment 1: https://www.aliexpress.com/item/SM2-54-Kits-40-sets-Kit-2p-3p-4p-5p-6p-Pitch-Female-and-Male-Header/32727629976.html Connectors Assortment 2: https://www.aliexpress.com/item/25-sets-2pin-3p-4-pin-4-2mm-Pitch-Terminal-Housing-Pin-Header-Connector-Wire-Connectors/32734484345.html DPH3205 Buck-Boost Converter: https://www.aliexpress.com/item/RD-DPH3205-Buck-boost-converter-Constant-Voltage-current-Programmable-digital-control-Power-Supply-color-LCD-voltmeter/32762131242.html Resistor Capacitor Inductor IC SMD Components empty pages: https://www.aliexpress.com/item/50-pcs-Resistor-Capacitor-Inductor-IC-SMD-Components-Empty-page-For-0402-0603-0805-1206-Electronic/32764290614.html Microwave Radar Sensing Module: https://www.aliexpress.com/item/Microwave-Radar-Sensor-4-8M-180-LED-Lamp-Smart-Switch-Steady-Home-Control/32668622766.html https://www.facebook.com/profile.php?id=100013947273409 https://twitter.com/spiessa
Views: 9973 Andreas Spiess
#183 How to select voltage regulators for small projects? (ESP8266, ESP32, Arduino)
 
22:34
Most of our modern processors and sensors need a stable power supply of 3.3 volts. Some older chips require 5 volts. And a raspberry pi needs nearly 1 ampere while an ESP in deep sleep requires only a few microamperes. Sometimes the current consumption is quite stable, and sometimes we have big current spikes like our ESP chips during Wi-Fi transfers. - We will discuss the two different principles for control of voltage: Linear and switching regulators - We will find out why linear regulators efficiency often is bad and where this fact is not significant. We also look at the thermal design and how it influences maximum current - We try to understand why switching regulators have higher efficiencies and can be built smaller for high currents or higher differences between input- and output voltage - We look at the output ripple and on other high-frequency signals and where they can hurt - We will test how the different regulators behave when your processor is in deep sleep - Finally, you should be able to make the right decision for your project -And you should be able to do a small talk using all the buzzwords mentioned before ERROR CORRECTION: Low Quiescent Regulator is HT7333, not HT7111. Sorry. Links: Meter: http://s.click.aliexpress.com/e/aqBQjU3 STL Files for Box: https://www.thingiverse.com/thing:2789890 Step-Down Converter: http://s.click.aliexpress.com/e/3Beauf2 Step-Up Converter: http://s.click.aliexpress.com/e/y37I6Mf Supporting Material and Blog Page: http://www.sensorsiot.org Github: https://www.github.com/sensorsiot My Patreon Page: https://www.patreon.com/AndreasSpiess If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel For Banggood https://bit.ly/2jAQEf4 For AliExpress: http://bit.ly/2B0yTLL For Amazon.com: http://amzn.to/2EGiJcK For Amazon.de: http://amzn.to/2r0ZCYI For Amazon UK: http://amzn.to/2mxBaJf For ebay.com: http://ebay.to/2DuYXBp https://www.facebook.com/profile.php?id=100013947273409 https://twitter.com/spiessa https://www.instructables.com/member/Andreas%20Spiess/ Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my primary job Equipment in my lab: http://www.sensorsiot.org/my-lab/
Views: 33636 Andreas Spiess
What is BUCK CONVERTER? What does BUCK CONVERTER mean? BUCK CONVERTER meaning & explanation
 
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What is BUCK CONVERTER? What does BUCK CONVERTER mean? BUCK CONVERTER meaning - BUCK CONVERTER definition - BUCK CONVERTER explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. A buck converter (step-down converter) is a DC-to-DC power converter which steps down voltage (while stepping up current) from its input (supply) to its output (load). It is a class of switched-mode power supply (SMPS) typically containing at least two semiconductors (a diode and a transistor, although modern buck converters frequently replace the diode with a second transistor used for synchronous rectification) and at least one energy storage element, a capacitor, inductor, or the two in combination. To reduce voltage ripple, filters made of capacitors (sometimes in combination with inductors) are normally added to such a converter's output (load-side filter) and input (supply-side filter). Switching converters (such as buck converters) provide much greater power efficiency as DC-to-DC converters than linear regulators, which are simpler circuits that lower voltages by dissipating power as heat, but do not step up output current. Buck converters can be remarkably efficient (often higher than 90%), making them useful for tasks such as converting a computer's main (bulk) supply voltage (often 12V) down to lower voltages needed by USB, DRAM, the CPU (1.8V or less), etc. The basic operation of the buck converter has the current in an inductor controlled by two switches (usually a transistor and a diode). In the idealised converter, all the components are considered to be perfect. Specifically, the switch and the diode have zero voltage drop when on and zero current flow when off and the inductor has zero series resistance. Further, it is assumed that the input and output voltages do not change over the course of a cycle (this would imply the output capacitance as being infinite). The conceptual model of the buck converter is best understood in terms of the relation between current and voltage of the inductor. Beginning with the switch open (off-state), the current in the circuit is zero. When the switch is first closed (on-state), the current will begin to increase, and the inductor will produce an opposing voltage across its terminals in response to the changing current. This voltage drop counteracts the voltage of the source and therefore reduces the net voltage across the load. Over time, the rate of change of current decreases, and the voltage across the inductor also then decreases, increasing the voltage at the load. During this time, the inductor stores energy in the form of a magnetic field. If the switch is opened while the current is still changing, then there will always be a voltage drop across the inductor, so the net voltage at the load will always be less than the input voltage source. When the switch is opened again (off-state), the voltage source will be removed from the circuit, and the current will decrease. The changing current will produce a change in voltage across the inductor, and now the inductor becomes a voltage source. The stored energy in the inductor's magnetic field supports current flow through the load. During this time, the inductor is discharging its stored energy into the rest of the circuit. If the switch is closed again before the inductor fully discharges (on-state), the voltage at the load will always be greater than zero.
Views: 1063 The Audiopedia