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Search results “Switching regulator current ripple”
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: 9598 katkimshow
EEVBlog #1116 - How to Remove Power Supply Ripple
 
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Circuit building block time. The capacitance multiplier and how it gives almost negligible power supply ripple compared to a voltage regulator. Whiteboard theory and then some bench demonstrations and experiments. Plus a twist at the end that proves that the "Capacitance multiplier" is perhaps one of the most mis-named circuits of all time. Forum: http://www.eevblog.com/forum/blog/eevblog-1116-the-capacitance-multiplier/ EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog Stuff I recommend: https://kit.com/EEVblog/ Donate With Bitcoin & Other Crypto Currencies! https://www.eevblog.com/crypto-currency/ T-Shirts: http://teespring.com/stores/eevblog Likecoin – Coins for Likes: https://likecoin.pro/@eevblog/dil9/hcq3 💗 Likecoin – Coins for Likes: https://likecoin.pro/@eevblog/dil9/hcq3
Views: 111339 EEVblog
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: 86174 VPT Tech Videos
How to measure power supply ripple
 
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Get professional PCBs for low prices from www.pcbway.com --~-- IN this video we look at how to measure ripple and distinguish it from noise when looking at power supply output. Yeeco DC DC Buck Voltage Regulator Power Converter - http://amzn.to/2iTNMsm 5A DC-DC Adjustable Step-Down Buck - https://goo.gl/EuCMni If you like the videos and want to keep help keep this channel alive, please visit the Patreon page and a pledge a dollar a month. This will be much appreciated and get you some exclusive perks available only to Patreon supporters, http://www.patreon.com/Learnelectronics If a recurring monthly commitment makes the hairs on the back of your neck stand up, but you still want to help support the channel you can send a PayPal gift to [email protected] Please make sure you tell me your YouTube name in the note so I know who to thank.
Views: 4426 learnelectronics
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: 5929 Vicor Corporation
Active Ripple Filters for switch mode converters
 
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An intuitive explanation of various active filters for ripple suppression.
Views: 5082 Sam Ben-Yaakov
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: 178577 EEVblog
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: 29121 NatureAndTech
DC DC Buck Converter 3
 
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Continuous mode & discontinuous mode mathematical development
Views: 51438 abuhajara
Module 2:  Introduction to Control Algorithms in Switching Regulators
 
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An overview of how switching is controlled in switching regulators. Focuses on three popular control algorithms: constant on-time, voltage mode control and current-mode control.
Views: 6961 Maxim Integrated
Minimizing Switching Regulator Residue in Linear Regulator Outputs
 
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with Jim Williams http://video.linear.com/75?utm_source=minswreg&utm_medium=video&utm_campaign=youtube Linear regulators are commonly employed to post-regulate switching regulator outputs. Benefits include improved stability, accuracy, transient response and lowered output impedance. Ideally, these performance gains would be accompanied by markedly reduced switching regulator generated ripple and spikes. In practice, all linear regulators encounter some difficulty with ripple and spikes, particularly as frequency rises. This video, excerpted from LTC Application Note 101 (http://cds.linear.com/docs/en/application-note/an101f.pdf), explains the causes of linear regulators' dynamic limitations and presents board level techniques for measuring and improving ripple and spike rejection.
Views: 18037 LinearTechnology
Switching Regulator Power Loss
 
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with Bob Dobkin, Vice President, Engineering & Chief Technical Officer http://video.linear.com/101?utm_source=LTspice&utm_medium=video&utm_campaign=youtube Efficiency is a misleading number for comparison of switching regulators. The efficiency number can be manipulated by the input and output voltage, while power loss is more tightly tied to the actual circuit. This video explains why.
Views: 2648 LinearTechnology
Linear Technology - Minimizing Switching Regulator Residue
 
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http://www.farnell.com/linear-technology/ Linear regulators are commonly employed to post-regulate switching regulator outputs. Benefits include improved stability, accuracy, transient response and lowered output impedance. Ideally, these performance gains would be accompanied by markedly reduced switching regulator generated ripple and spikes. In practice, all linear regulators encounter some diffi culty with ripple and spikes, particularly as frequency rises. This effect is magnifi ed at small regulator VIN to VOUT differential voltages; unfortunate, because such small differentials are desirable to maintain efficiency. To view this and other solutions from Linear Technology please choose your location and view the fantastic range of Linear Technology products on offer from Farnell at http://www.farnell.com/linear-technology/
Views: 333 element14
LDO as Ripple Suppressor
 
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If your application requires a supply voltage that is free of ripple and noise, you may want to use an LDO as voltage regulator. But how well can an LDO remove ripple and noise from an input supply rail? This is related to the LDO Power Supply Ripple Rejection (PSRR). Find out about PSRR vs. frequency and practical design tips for using a LDO as a ripple and noise filter in our tutorial video.
What is Voltage Ripple in a Power Supply?
 
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Defining voltage ripple in power supplies and computers. Full article: http://www.gamersnexus.net/guides/2053-power-supply-voltage-ripple-and-relevance Like our content? Please consider becoming our Patron to support us: http://www.patreon.com/gamersnexus ** Please like, comment, and subscribe for more! ** Follow us in these locations for more gaming and hardware updates: t: http://www.twitter.com/gamersnexus f: http://www.facebook.com/gamersnexus w: http://www.gamersnexus.net/
Views: 9266 Gamers Nexus
How to Smooth Out Pulsating DC
 
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Learn more about this and related topics in http://www.amazon.com/Teach-Yourself-Electricity-Electronics-5th/dp/0071741356
Views: 12412 Stan Gibilisco
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: 20888 Julian Ilett
18) Unregulated Power Supply For a Power Amp
 
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I thought it would be interesting to do a theory video on linear power supply design. I build up a simple low voltage supply to setup the framework for the larger and more powerful split rail linear power supply used by the (Nelson Pass) PassLabs F5 amplifier that’ll show up over the next couple of videos. I begin building up the F5 supply and we compare ripple voltage between a switch mode supply and linear supplies. I also cover how to select the proper filter capacitor with some basic algebra. I went a little nuts with GarageBand an made some techno music to go along with the time lapse build. Not my cup of tea, but it was fun to make anyway! Hope you guys enjoy this LONGER video. Send me something! : The Current Source PO Box 620241 Oviedo, FL 32762-241 Follow more stuff here: @tcurrentsource www.thecurrentsource.com
Views: 37805 The Current Source
Methods to Reduce DC-DC Converter Output Ripple
 
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Steve Butler discusses DC-DC converter output ripple, its characteristics and how it can be reduced using VPT products.
Views: 491 VPT Tech Videos
#183 How to select voltage regulators for small projects? (ESP8266, ESP32, Arduino)
 
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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: 46099 Andreas Spiess
Ripple Filtering
 
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Here's why the output of a full-wave rectifier is easier to filter than the output of a half-wave rectifier (if all other parameters remain constant).
Views: 18785 Stan Gibilisco
Power Supplies: Switching vs. Linear
 
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Get professional PCBs for low prices from www.pcbway.com --~-- Power Supplies: Switching vs. Linear Please help to support my efforts to bring you intertesting electronics videos every day. www.patreon.com/learnelectronics In this video we look at the design and differences between a switching and a linear power supply. We examine the pros and cons and look at which one is best for which application. Pevono PS305 Switching Power Supply $62.99 - http://amzn.to/2sHb7Wl Volteq GPS303D Linear Power Supply $89.95 - http://amzn.to/2Cw0GUY www.patreon.com/learnelectronics
Views: 18294 learnelectronics
EEVblog #90 - Linear and LDO regulators and Switch Mode Power Supply Tutorial
 
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Just how different are linear, LDO and switching buck voltage regulators? I'm glad you asked! You might be surprised... It's tutorial time. NOTE: There are many different methods of SMPS control, this is just one of the simple ones, go investigate! The EEVblog Forum: http://www.eevblog.com/forum The EEVblog Website: http://www.eevblog.com
Views: 203389 EEVblog
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: 696479 ElectronFun.com
HLK-PM01 power supply module - test (load, ripple), review
 
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Testing the Hi-Link HLK-PM01 5V 600mA 3W power supply module - load (max current), ripple and safety test. Dummy load & battery analyzer circuit diagram: http://tefatronix.g6.cz/display.php?page=batmeter&lang=en https://www.facebook.com/tefatronix
Views: 16255 TefaTronix
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: 1858 Onstate LED Lighting
Ripple Voltage Differences by Capacitor Type | Ask An FAE
 
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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: 2538 KEMET Electronics
Measuring Switching Regulator Noise
 
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with Jim Williams, Staff Scientist http://video.linear.com/29?utm_source=switchregnoise&utm_medium=video&utm_campaign=youtube The universal application of switching regulators, combined with the powered systems potential for supply noise sensitivity, mandates the need for a reliable noise measurement technique. Actually, switching regulator "noise" isn't really noise at all, but coherent, high frequency residue directly related to the regulators switching. This residue, composed of fundamental switching frequency ripple and wideband harmonic, is the measurand.
Views: 11117 LinearTechnology
Inductor behavior and Buck Converter Explained
 
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Intuitive analysis of inductor behavior and Buck converter by Prof. Sam Ben-Yaakov
Views: 24173 Sam Ben-Yaakov
Making Output Ripple Measurements on a DC output
 
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Learn more about performing and output ripple measurement on the DC output of a power supply using a Keysight InfiniiVision X-Series oscilloscope. Click to subscibe! ► http://bit.ly/Scopes_Sub Visit www.keysight.com/find/scopes-power
Views: 18317 Keysight Labs
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: 7098 World Of Engineering
Linear Voltage Regulators (LM7805) | AO #17
 
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Why is the LM7805 is a very popular voltage regulator? Support on Patreon: http://patreon.com/baldengineer Curious about how it works? In this AddOhms Tutorial we look at what a Linear Voltage Regulators is and how to use them in your circuits. Discuss on AddOhms Forums: https://forum.addohms.com/t/show-notes-17-linear-regulators/48 More information: www.addohms.com/ep17 Support AddOhms on Patreon: http://patreon.com/addohms #linear #regulator #lm7805
Views: 93105 AddOhms
Adjustable Voltage/Current Power Supply
 
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Link to the voltage regulator module on Amazon.com: https://amazon.com/gp/product/B01FNVESV2/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 Aliexpress.com seller: https://rdtech.aliexpress.com/store/923042/search?origin=y&SearchText=RD+step-down You can also find it elsewhere by searching for: - DPS5005 (50V, 5A) - DPS3005 (30V, 5A) - DPS3003 (30V, 3A)
Views: 21643 Dušan Koleno
#084 LM317T Linear Voltage [or Current] Regulator
 
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Features : Output : Adjustable (1.2 V to 37 V) Output Current : 1.5 A Load Regulation : 0.5 % Input Voltage MAX : 40 V Line Regulation : 0.04 % / V Maximum Operating Temperature : + 125 C Mounting Style : Through Hole Package / Case : TO-220 Linear Voltage Regulators are low-efficiency compared to switching mode regulators, which came around in the late 60s. If you know what a voltage divider with resistors does, imagine one of those resistors is a transistor, which is biased by how far off the output is to that desired. Pretty simple. Because all the load current has to flow through them, the greater the difference between the input & output voltage, the more heat needs to be dissipated, which is why they are larger, have heat sinks, etc. ("Without a heat sink with an ambient temperature at 50 ⁰C such as on a hot summer day inside a box, a maximum power dissipation of (TJ-TA)/RθJA = ((125-50)/80) = 0.98 W can be permitted. (A piece of shiny sheet metal of Aluminum with the dimensions 6 x 6 cm and 1.5 mm thick, results in a thermal resistance that permits 4.7 W of heat dissipation." ~ wikipedia link below). Also 0.04%/V regulation accuracy is pretty tight. Efficiencies can be compared to their switching mode counterparts in terms of expected efficiencies. With Linear Regulators, efficiency is a linear measure of the ratio between input and output voltages, where: Vout/Vin ratio is 0.1 = 10% efficiency Vout/Vin ratio is 0.5 = 50% efficiency Vout/Vin ratio is 0.9 = 90% efficiency [See this article for the chart, application circuits, etc.: http://cds.linear.com/docs/en/application-note/AN140fa.pdf] Q: Why would you ever use one of these over a switching regulator? "Applications Where Linear Regulators Are Preferable There are many applications in which linear regulators or LDOs provide superior solutions to switching supplies, including: 1. Simple/low cost solutions 2. Low noise/low ripple applications 3. Fast transient applications 4. Low dropout applications" There is no oscillator switching the output on & off, requiring large capacitance to try to smooth out the ripple. There is nothing _causing_ ripple-just like in a resistor divider. I'm having a h*ll of a time with radio clones of chips like the nRF24L01+ that are notoriously sensitive to noise on their DCin, and I hope to create some bench/lab tests to compare this chip to the 7805, 1117, and other bench supplies I've made here. Will the cleanest regulation I can do at the component level help? Couldn't hurt! :) If you just want to go from 37vdc to 3.3vdc, use a switching mode regulator, as they will run cool at typically over 95% efficiency (less efficiency = heat (I2R) loss). For sensitive stuff that isn't behaving like you expected, try one of these $0.10 variable regulators and see if you find a difference... :) Thanks! pat :) reference: Datasheet: http://pdf1.alldatasheet.com/datasheet-pdf/view/22754/STMICROELECTRONICS/LM317T.html Wikipedia: https://en.wikipedia.org/wiki/LM317 10 LM317T for $1USD (delivered) on eBay: http://www.ebay.com/itm/New-10pcs-LM317T-LM317-Voltage-Regulator-IC-1-2V-to-37V-1-5A-LDO-/182652276375?epid=1227192467&hash=item2a86ec8e97:g:yQkAAOSwnHZYV4U5 The complete PS I show at the end: http://www.ebay.com/itm/LM317-DC-DC-Step-Down-Power-Module-Adjustable-Linear-Regulator-Low-Ripple-/192170168034?epid=815000727&hash=item2cbe3c0ee2:g:IKwAAOSwjqVZAbsx
Views: 1065 The Sales Engineer
Zener Diode as Voltage Regulator (Part 1)
 
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Analog Electronics: Zener Diode as Voltage Regulator (Input Voltage & Load Resistance Fixed) Topics Covered: 1. What is Voltage Regulator. 2. Zener diode in forward and reverse bias condition. 3. Basic zener regulator circuit. 4. Calculation of voltage across zener diode using Thevenin's theorem. 5. Calculation of circuit parameters when diode is OFF. 6. Calculation of circuit parameters when diode is ON. 7. Numerical Problem. Contribute: http://www.nesoacademy.org/donate Website ► http://www.nesoacademy.org/ Facebook ► https://goo.gl/Nt0PmB Twitter ► https://twitter.com/nesoacademy Pinterest ► http://www.pinterest.com/nesoacademy/
Views: 277516 Neso Academy
Electronics Tutorial , Lessons#62 - OPAmp Series Regulator
 
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Regards Saqer Khalil +966-540591074 Jeddah , Saudi Arabia [email protected]
Views: 26131 Saqer Khalil
Onstate #88: XL4016 8A CC CV DC step-down buck charger/LED driver converter module testing.
 
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Testing of a standard low-cost eBay/Asia XL4016 CC CV DC-DC step-down converter regulator power supply. Constant current for battery charging or LED driver. See XLSEMI XL4016 datasheet for more information. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO. General supplier specifications: DC-DC CC CV Buck Converter Step-down Power Supply Module 7-40V to 0.8-35V 8A Input voltage: 7-40V Output voltage: 0.8-35V Output Current: 8A (max), up to 300W Output noise: 50mV (20MHz bandwidth) Load regulation: 1% Voltage regulation: 1% Dynamic response speed: 5% 200uS Switching frequency: 300kHz Efficiency: up to 95% Thermal shutdown, current limiting output short protection Dimensions: 65x47x22mm (L x W x H) Red: Charging indicator (1/10 CC set) Green: Charged, no load. Testing measurements: Switching frequency: 187kHz. XL4016 spec is 180kHz. Oscilloscope CH1= switching waveform (IC pin 3). 10V/div. 2us/div. Oscilloscope CH2= output waveform (+out). 1.0V/div. Output constant voltage load test (12V CV, 10 ohms): 24Vin 0.68A=88%, Output noise: 3.5Vp-p spikes, 50mV ripples. 24V 2.06Ain, 12.1V out, 3.2 ohms = 93% eff. 4.6Vp-p spikes, 100mV ripple noise. Stable switching up to 31V input. Good output voltage stability. CV range test. Unstable/jitery switching at greater than 22V output and greater than 24V input. Some jittery switching at low output voltages. CC mode unstable switching at high output voltages. Reliable operation at less than 24V input and less than 21V output. Feedback stability modifications required for stable CC/CV mode. High output voltage spikes from switching. Recommendation: Good low output ripple noise and voltage stability and operation in CV mode for 6-21V output and up to 25V input. Possible unstable CC/CV switching at some settings. Battery charging or LED driver limited to certain voltage/current ranges. Lacks good layout design for its application. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Views: 28989 Onstate LED Lighting
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: 5449 Texas Instruments
LM 2596 DC -DC  Buck converter | Adjustable step down module | specifications -Application
 
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This is an LM2596 DC-DC buck converter step-down power module with a high-precision potentiometer for adjusting output voltage, capable of driving a load up to 3A with high efficiency. When the output current required is greater than 2.5A(10W) ------------------------------------------------------------------------------- Download Circuit diagram and detail - https://goo.gl/Rtz7wL https://goo.gl/KuHZZN ------------------------------------------------------------------------------- the component is using * LM2596 dc-dc buck converter step down module ___________________________________________________ buy material by the following a link LM2596 dc-dc buck converter step down module -https://goo.gl/pxH5AR MT3608 2A dc-dc Step Up Boost Power Module = https://goo.gl/c4Ys6P ----------------------------------------------------------------------------- Click the link see the more videos on the playlist 1)Monitoring & controlling project circuits - https://goo.gl/UUT2CG 2) Inverter circuits - https://goo.gl/xz33Uu 3) Chaser LED lights circuits - https://goo.gl/5aRnU4 4) DC Power supply circuits - https://goo.gl/yt4fuP 5) Remote control circuit - https://goo.gl/rJzx1d 6) LED-based circuits - https://goo.gl/pga5qh 7) Relay-based circuit - https://goo.gl/Q4r7XM 8) PIC Microcontroller project - https://goo.gl/9tNaVm 9) Relay-based circuit - https://goo.gl/J4u8BD 10) Battery controller circuits - https://goo.gl/YVHokC 11) Repair works - https://goo.gl/11uPxn 12)Transformerless power supply circuits - https://goo.gl/c9zv ------------------------------------------------------------------------------------------------- buy more material by the following a link 1. Electronic Components Project Kit or Breadboard, Capacitor, Resistor, LED, Switch =https://goo.gl/1mBi3L 2. 1N4007 Mic 1A 1000V DO-41 Rectifier Diode Set Of 10 = https://goo.gl/X71hCp 3. DC 0.9V-5V 0.6A USB Charger power bank Module https://goo.gl/ZpP9eE 4. Dual USB 5V 1A 2.1A Mobile Power Bank Module =https://goo.gl/5TKcMi 5. DC Boost Converter Power Supply Module = https://goo.gl/c4Ys6P 6. 433Mhz RF Wireless Transmitter Receiver Module = https://goo.gl/ZntXYr 7. 10W mini White High Power LED SMD Bead Chips = https://goo.gl/NFBtTV 8. 12V DC Battery Eliminator Power Supply transformer-1 Amp = https://goo.gl/nBE6P3 9. LED driver AC TO DC 12V CONVERTER = https://goo.gl/NMf1Vh 10. 555 Timer Ic = https://goo.gl/ZPB1Zt 11. 1W High Power Led Lamp 110-120Lm LEDs = https://goo.gl/3NuufG 12. 12 Volt DC Motor (Multipurpose Brushed Motor For DIY Applications PCB Drill) = https://goo.gl/RVHTQK 13. DC 12v gear motor = https://goo.gl/M3yqZL 14. Electric Hand Drill PCB Press Drilling 12V Motor, 12000 RPM, 10 Pcs 0.3-3.0 mm Drill Bits Set, Keyless Brass Chucks and Hi-Watt Battery = https://goo.gl/7qUf9m 15. 12V PCB MOUNT SUGAR CUBE RELAY = https://goo.gl/m1pbD9 -------------------------------------------------------------------------------
Views: 29545 POWER GEN
How to design a high current, low noise power supply for harsh environments
 
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Learn how to design a high current, low noise, power supply system for harsh environments using current sharing. Chris Hart, Space Business Development Manager for Hi-Rel discusses how to meet higher current demands and reduce Mean Time Between Failure of a single device by sharing the stress between two devices.
Views: 3550 Texas Instruments
Onstate #64:  LM2596 CC CV DC-DC buck converter.  LED load waveform and voltage testing.
 
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Testing of a standard low-cost ($4) eBay/China LM2596S DC-DC constant current and constant voltage step-down converter regulator power supply. A similar product using name-brand original parts will cost ($15). This sample is the QSKJ brand. Other brands are available and some maybe using a fake LM2596. See Texas Instruments LM2596S-ADJ datasheet for more information. General specifications: Input voltage: 7V-35V Output voltage: 1.25V-30V Output current: adjustable, max. 3A Efficiency: up to 92% Switching frequency: 150KHz Output ripple: 50mV-60mW (max) 20M bandwidth Load regulation: ±0.5% Voltage regulation: ± 1% to ± 2.5% (depends on supplier) Input protection: schottky diode LEDs: blue (power), red (load current threshold), red (CC mode) Main parts: LM2596S, 78L05, SS54, LM358. Testing measurements: Switching frequency: ~155kHz. Real LM2596 is 150kHz Switching inductor: 33uH. Oscilloscope CH1= switching waveform (IC pin 2). 10V/div. 2uS/div. Oscilloscope CH2= output waveform (+out). 0.1V/div. Output load: 3x white LEDs in series, 0.7A, 9.55V. 12V in, 0.61A, 91% eff., 67mVp-p ripples, 284mVp-p spikes, 460mV spikes at 12.9V in. 24V in, 0.32A, 87% eff., 310mVp-p ripples, 167mVp-p V spikes (edge of ripples). Load current range: 0.5-1.5A. 2A with a heatsink. At constant current mode, the op-amp is active. Current regulation is very good. DC converter switching signal is stable and clean throughout the voltage range. Recommendation: Stable switching and low ouput ripple noise. Good for LED lighting applications requiring a constant current source. The overall design is good for general use. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Views: 1543 Onstate LED Lighting
Constant voltage
 
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Table of content: 00:12 Batteries 00:50 Inner resistance 02:25 Inner resistance of a "generator" 02:45 Voltage divider 03:03 Stabilizer circuit (linear regulator) 06:57 Linear regulator with op-amp 07:35 Op-am and p-channel MOSFET 08:27 Low dropout regulator (LDO) 08:54 Power dissipation 09:25 Switched mode regulator 10:50 Ripple 12:03 Reducing ripple by capacitors 12:14 RC-filter 12:39 LC-filter 14:15 Constant DC current (transistor) 15:49 Constant current (op-amp) 17:12 Electrochemical reaction More about the topic at the project page: http://www.homofaciens.de/technics-base-circuits-constant-voltage_en_navion.htm
Views: 4593 HomoFaciens
How to Test an Alternator  ( Testing the Voltage Regulator, Diode rectifier and Stator)
 
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This video will cover the following ------------------------------------------------------- How to test an alternator using multi meter How to replace an alternator How to diagnose alternator charging issues Alternator ripple test How to test a voltage regulator in an alternator How to replace bearing in an alternator ( Alternator brush replacement ) how to test a rectifier in an alternator How to test diodes pack in an alternator How ecu controlled / computer controlled alternators work How to test drive belts in a car How to replace a decoupler pulley Diagnosing no charge , undercharging , overcharging alternator with multimeter How to fix a rattling alternator How to test fuses and relays How to test alternator duty cycle How PWM ( pulse width modulation basics ) works How to read waveforms why your battery light is on How to find a voltage drop how to use a multimeter How to find a overnight parasitic battery drain How to repair an alternator and finally Deciding on brand new vs remanufactured Featuring - Toyota camry / aurion / corolla / daihatsu cuore / mitsubishi lancer Silicone Paste https://amzn.to/2yfil3d Digital Multimeter https://amzn.to/2ye7aYx Automotive Relay Tester https://amzn.to/2OzmOIb PicoScope PP923 Standard Automotive Kit https://amzn.to/2DVAnNV Pocket-Sized Digital Storage Oscilloscope https://amzn.to/2OuRZVh Alternator Decoupler Pulley Tool Kit https://amzn.to/2ICBUaC 17mm hex socket https://amzn.to/2xYiZme Impact wrench https://amzn.to/2DUagag https://amzn.to/2NmGjiH https://amzn.to/2OzCcV2 Impact wrench ( high torque) https://amzn.to/2IE2YGq https://amzn.to/2DXvPXA Breaker Bar https://amzn.to/2OA5aE9 WD-40 https://amzn.to/2IDkTgj Autel MaxiDAS DS808 https://amzn.to/2O5tr5F haynes repair manual https://www.amazon.com/gp/search/ref=as_li_qf_sp_sr_il_tl?ie=UTF8&tag=junkydiyguy-20&keywords=haynes repair manual&index=aps&camp=1789&creative=9325&linkCode=xm2&linkId=cf0c7c2967e4dc41f52250c37fe30079 test light https://amzn.to/2DVdYjO Power Probe III https://amzn.to/2yexzWf Best Jump starter i've ever used https://amzn.to/2qWpFgV Music: Ahrix – Nova Spotify: https://open.spotify.com/artist/0kXCdaJ7C5MD27jXxzvHsa Facebook: http://bit.ly/1wFWvyM Youtube Channel: http://bit.ly/2mUBTD2 Youtube Video: http://bit.ly/1eXqiOi SoundCloud: http://bit.ly/1m1ye0b And don't forget to follow me on Instagram for more updates https://www.instagram.com/junkydiyguy/
Views: 884120 Junky DIY guy
LDO basics: Dropout voltage
 
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Visit the TI LDO homepage to learn more about the TI LDO Portfolio. http://ti.com/ldo This video will go over what an LDO is and discuss the importance of dropout voltage in an LDO. An application will demonstrate the importance of dropout voltage when designing as dropout voltage can affect the desired output of an LDO. The designer must keep the input voltage and dropout voltage in mind when using an LDO. Furthermore, PMOS and NMOS architectures used in LDO's will be covered as this has the most impact to the dropout voltage. The video will also show other variables such as pass element size, temperature, output current, temperature, and output accuracy that all can affect dropout voltage.  Need Help? Visit the support and training tab from the LDO homepage. http://www.ti.com/power-management/linear-regulators-ldo/support-training.html Read the corresponding blog post, LDO Basics: dropout. https://e2e.ti.com/blogs_/b/powerhouse/archive/2017/03/16/ldo-basics-dropout
Views: 2838 Texas Instruments
Zener Voltage Regulator with Pass Transistor
 
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This tutorial shows you how to make a simple zener regulator with pass transistor to increase the current. It is a simple yet useful circuit if you don't need a high accuracy o regulation.
Views: 18448 Ludic Science
Onstate #84: XL4015 5A CC CV DC lithium battery charging step-down buck converter module testing.
 
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Testing of a standard low-cost eBay/Asia XL4015 5A CC CV DC-DC step-down converter regulator power supply. Constant current for battery charging or LED driver use. This regulator is similar to the LM2596 based converter. See XLSEMI XL4015 datasheet for more information. NOTE: KNOWLEDGE OF POWER ELECTRONICS IS REQUIRED TO UNDERSTAND VIDEO. General supplier specifications: 5A DC to DC CC CV Lithium Battery Charging Board LED Drive Power Converter. Non-isolated, non-synchronous constant current and voltage module. Input voltage: 5-32V Output voltage: 0.8-30V Output Current: 5A (max) Efficiency: up to 95% Switching frequency: 300kHz Voltage Regulation: ±2.5% Load Regulation: ±0.5% Output ripple: 50mV (max, 20M bandwidth) Operating Temperature: -40°C to +85°C Dimensions: 51x27x15mm NOTE: XL4005 IC on supplier photos and specifications. Received unit is XL4015 converter. Parts: XL4015 180kHz 5A buck converter, LM358 dual op-amp, 78L05 regulator, 43uH power inductor, 35V 470uF ele. cap, 0.050 ohms shunt resistor. RED LED (beside VR): CC mode. Testing measurements: -Switching frequency: 192kHz. XL4015 spec is 180kHz. -Oscilloscope CH1= switching waveform (IC pin 3/L1). 10V/div. 2us/div. -Oscilloscope CH2= output waveform (+out). 1.0V/div. -Output load test (10 ohms resistor): 12Vout. Stable switching to 30VDC. 17Vin 0.92A=92% Output noise: 4.5Vp-p spikes, 128mVp-p ripples. 24Vin 0.68A=88%, Output noise: 4Vp-p spikes, 200mV ripples. CC adjustment unstable switching at less that 9.5Vout. Unstable feedback loop. 5Vout (0.5A), 12Vin 0.25A=83%. slight jittery switching. 3.77Vp-p spikes, 45mVp-p noise. CV adjustment stable from 5.1V to 30V. Less than 5.1V possible jittery switching. 30Vin 1.45A, 20Vout 2A=92%, CC control starting to be unstable at less than 19.5 Vout. An output inductor and capacitor will filter the output voltage spikes. Recommendation: Good output voltage stability and switching in CV mode. Possible unstable CC mode feedback at some settings. Not suitable for battery charging or LED driver applications. General application use in CV mode. Subscribe for technical support. Please read description and product datasheet before comments/questions.
Views: 18735 Onstate LED Lighting
Engineer It - How to test power supplies - Measuring Noise
 
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TI's Bob Hanrahan demonstrates how to measure noise when testing power supplies. For more videos on testing power supplies, check out: Overview: www.ti.com/testingpoweroverview Measuring efficiency: www.ti.com/measuringefficiency Measuring stability: www.ti.com/measuringstability
Views: 68089 Texas Instruments
Dual voltage step down AC to DC power converter
 
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Viewer request to review http://www.icstation.com/converter-dual-channel-step-down-power-supply-board-module-265v-5v12v-p-13178.html
Views: 2119 12voltvids
5A DC to DC CC CV  Step Down Module XL4015  Unboxing  | Test
 
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hi In this video I am going to U n boxing | Test Original 5 A DC to DC CC CV Lithium Battery Step down Charging Board Led Power Converter Lithium Charger Step Down Module X L 4015 OR 5 A DC to DC CC CV Lithium Battery Charging Board Led drive power converter description | Output voltage: 0.8 V -30 V Input voltage: 5V-32V Output current: adjustable maximum 5 A Size: 51 * 26.3 * 14 (L * W * H) (mm) Operating Temperature: -40 ℃ to +85 ℃ Voltage Regulation: ± 2.5% Load Regulation: ± 0.5% Output ripple: 50mV (max) 20M bandwidth Switching frequency: 300KHz Conversion efficiency: 95% (the highest) Rectification: non-synchronous rectification Module Properties: non-isolated constant current and voltage module. Advantage: CC CV Low ripple When the module charges a battery, it first use constant current to protect the battery. ------------------------- More link of my video ----------------------- How To Make a Mini Simple Audio Amplifier | Tutorial https://youtu.be/qRd31j4L84c How to make inverter 12V To 220V From ATX Power Supply | Tutorial https://youtu.be/FzfKT22Zqao How to make a simple audio amplifier ( using D882 transistor ) https://youtu.be/RgIs7mRPyhs how to make simple inverter 12v to 220v using C1815 Transistor https://youtu.be/V6Ki8FQMRJY Audio Amplifier curcuit with Mosfet IRFZ44N https://youtu.be/YTamuQGTN1M How to make inverter 12V To 220V using TL494 | Mosfet z44 https://youtu.be/hZYKm1L2LuE Transformerless Power Supply (220V AC to 12V DC) https://youtu.be/9WRSCBKEn0s How to Make Stereo Audio Amplifier TDA 7297 | 30Watt https://youtu.be/ZIpVzV3GkFg How to make inverter 12V to 220V-240V using CD4047 50hz https://youtu.be/nc-AW-8xBVw ------------------------------------ Follow Me https://www.facebook.com/Easyonee https://twitter.com/Eaasyone https://www.instagram.com/easyyone
Views: 30216 Easy One
Buck boost converter output voltage derivation in power electronics by Engineering Funda
 
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This video includes Buck boost converter output voltage derivation with following outlines: 1. Buck boost Converter 2. Basics of Buck boost Converter 3. Circuit of Buck boost Converter 4. Working of Buck boost Converter 5. Buck boost converter output voltage derivation For free materials of different engineering subjects use my android application named Engineering Funda with following link: https://play.google.com/store/apps/details?id=com.viaviapp.ENG_Funda Above Android application of Engineering Funda provides following services: 1. Free Materials (GATE exam, Class Notes, Interview questions) 2. Technical Forum 3. Technical discussion 4. Inquiry For more details and inquiry on above topic visit website of Engineering Funda with given link: http://www.engineeringfunda.co.in Engineering Funda channel is all about Engineering and Technology. Here this video is a part of Power Electronics.
Views: 7385 Engineering Funda

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