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Search results “Switching regulator current ripple”
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: 79300 VPT Tech Videos
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: 22212 NatureAndTech
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: 2041 learnelectronics
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: 1858 KEMET Electronics
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: 4097 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
Views: 52531 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: 554559 ElectronFun.com
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: 7468 Gamers Nexus
#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: 805 The Sales Engineer
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: 16576 Stan Gibilisco
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: 15538 Keysight Labs
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: 2109 Texas Instruments
Module 1:  Introduction to Switching Regulators
 
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Discussion of the concept and theory behind switching regulators and how they are used to build nonisolated power supplies.
Views: 2077 Maxim Integrated
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: 3664 Vicor Corporation
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: 15876 LinearTechnology
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: 4652 Texas Instruments
Transistor voltage regulator and ripple filter circuits explained
 
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Let's delve into these circuits to see how they work. I bread-boarded a transistor regulator near the end of the video.
Views: 24420 JohnAudioTech
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: 66730 AddOhms
Power Supply Filters
 
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George explains why and how to filter a power supply. Subscribe: https://twit.tv/subscribe About us: TWiT.tv is a technology podcasting network located in the San Francisco Bay Area with the #1 ranked technology podcast This Week in Tech hosted by Leo Laporte. Every week we produce over 30 hours of content on a variety of programs including Tech News Today, The New Screen Savers, MacBreak Weekly, This Week in Google, Windows Weekly, Security Now, All About Android, and more. Follow us: https://twit.tv/ https://twitter.com/TWiT https://www.facebook.com/TWiTNetwork https://www.instagram.com/twit.tv/
Views: 2421 TWiT Netcast Network
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: 10697 LinearTechnology
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.
#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: 31448 Andreas Spiess
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: 6414 World Of Engineering
Fundamentals of Power Electronics - Buck Converter Basics
 
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Here, we introduce the buck 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: 109627 katkimshow
Active Ripple Filters for switch mode converters
 
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An intuitive explanation of various active filters for ripple suppression.
Views: 3591 Sam Ben-Yaakov
Measuring Switching Regulator Noise
 
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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: 243 powersystemsdesign
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: 317 element14
Bench Power Supply Full Review (variable 0-30V & 0-10A)
 
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Bench Power Supply 30V 10A 110V Variable Output http://amzn.to/2z8hIY6 This DC Power Supply features a very high quality variable 0-30V and current 0-10A. It comes with high reliability, low noise and circuit overload protection. Features: -Steady DC -All Metal Construction -Compact Design -Dual LED Display -Current mA Display -High Stabilized Output Voltage -Short Circuit Protection -Over Loading and Current Protection Specifications: -Size: 13.4 x 7.5 x 8.6 inch -Weight: 17 lbs Operating Conditions: -Supply Voltage: AC 110V -Frequency: 60Hz -Working Temperature: -10°C to 40 °C Stable Voltage: -The output voltage is between 0 and nominal value continuously adjustable -Voltage Stability: ≤0.01% +2mV -Load Stability: ≤ 0.01% +2mV -Recovery Time: ≤100μS -Ripple Noise: ≤1 MVRMS - effective value -Temperature Coefficient: ≤ 200PPM/°C Stable Current: -The output current is between 0 and nominal value continuously adjustable -Power Stability: ≤ 0.1% + 3mA -Load Stability: 0.2% + 3mA -Ripple Noise : ≤2mArms
Views: 119750 dial2fast
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: 588536 Afrotechmods
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: 28787 The Current Source
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: 10138 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.
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: 58962 Texas Instruments
Voltage Regulator with By-pass Transistor
 
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This tutorial shows how to add a by-pass transistor to a voltage regulator in order to increase its current rating.
Views: 14513 Ludic Science
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.
Views: 11341 Easy One
Make a simple adjustable power supply LM317
 
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This video shows how to use the LM317 adjustable voltage regulator to make a simple adjustable power supply using just 3 components. The LM317, a 10k pot and a 180 ohm resistor. Optionally you can add a ceramic capacitor on the input and electrolytic capacitor on the output to smooth out any current ripples. I show you how to crete the circuit on a breadboard and then show the simple adjustable voltage reulgator circuit placed on a homemade PCB, ready to be mounted inside a project box with banana input/output sockets. SUPPORT ME: If you enjoyed this video, please remember to give a LIKE and click here to subscribe to my channel - http://www.youtube.com/subscription_center?add_user=philstuffs
Views: 249689 Gadget Addict
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: 19695 Dušan Koleno
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://www.amazon.com/3M-08946-Clear-Silicone-Paste/dp/B005RNEH5O/ref=sr_1_1?s=automotive&ie=UTF8&qid=1494301087&sr=1-1&keywords=silicone+paste Digital Multimeter https://www.amazon.com/Fluke-FLUKE-87-V-Digital-Multimeter/dp/B00T3LZLFG/ref=sr_1_1?s=automotive&ie=UTF8&qid=1494296497&sr=1-1&keywords=fluke+87v Automotive Relay Tester https://www.amazon.com/Boruit-Electronic-Automotive-Diagnostic-Battery/dp/B074KHFVM8/ref=sr_1_12?ie=UTF8&qid=1506508183&sr=8-12&keywords=Automotive+Relay+Tester PicoScope PP923 Standard Automotive Kit https://www.amazon.com/PicoScope-PP923-Standard-Automotive-Kit/dp/B01LW97HBW/ref=sr_1_3?ie=UTF8&qid=1497250141&sr=8-3&keywords=picoscope Pocket-Sized Digital Storage Oscilloscope https://www.amazon.com/SainSmart-Pocket-sized-Handheld-Oscilloscope-Bandwidth/dp/B0057M7YLE/ref=sr_1_1?ie=UTF8&qid=1497251308&sr=8-1&keywords=pocket+oscilloscope+dso Alternator Decoupler Pulley Tool Kit https://www.amazon.com/Gates-91024-Alternator-Decoupler-Pulley/dp/B0053OSBUY 17mm hex socket https://www.amazon.com/Titan-Tools-15617-Drive-Socket/dp/B004W81LPY/ref=sr_1_2?ie=UTF8&qid=1497251406&sr=8-2&keywords=17mm+hex+socket 1/2" Impact Wrench (low torque) https://www.amazon.com/Briggs-Stratton-6380-00-Impact-Wrench/dp/B01N6HBSA3/ref=sr_1_20?ie=UTF8&qid=1497251537&sr=8-20&keywords=impact+wrench+air 1/2" Impact Wrench (high torque) https://www.amazon.com/Milwaukee-Torque-Impact-Wrench-Friction/dp/B00GFUA6O4/ref=sr_1_20?ie=UTF8&qid=1497251450&sr=8-20&keywords=impact+wrench Breaker Bar https://www.amazon.com/Neiko-00206A-Premium-Breaker-Length/dp/B001222378/ref=sr_1_1?s=power-hand-tools&ie=UTF8&qid=1497251661&sr=1-1&keywords=breaker+bar WD-40 https://www.amazon.com/WD-40-100324-Multi-Use-Product-Spray/dp/B000NV8T5Y/ref=sr_1_1?s=industrial&ie=UTF8&qid=1497251756&sr=1-1-spons&keywords=wd+40+spray&psc=1&smid=AMO63F4FY7B3J Autel MaxiDAS DS808 https://www.amazon.com/MaxiDAS-Diagnostic-Support-Injector-Coding/dp/B071L1GH89/ref=sr_1_3?s=automotive&ie=UTF8&qid=1497251804&sr=1-3&keywords=autel+ds808 haynes repair manual https://www.amazon.com/s/ref=nb_sb_ss_i_5_6?url=search-alias%3Daps&field-keywords=haynes+repair+manual&sprefix=haynes%2Caps%2C767&crid=34COIZJJ168 test light https://www.amazon.com/OTC-3636-Heavy-Duty-Circuit-Tester/dp/B002YKFA0O/ref=sr_1_1?ie=UTF8&qid=1497252028&sr=8-1&keywords=otc+test+light Power Probe III https://www.amazon.com/Power-Probe-III-Clamshell-Red/dp/B00G4YUWMC/ref=sr_1_3?ie=UTF8&qid=1497252050&sr=8-3&keywords=power+probe 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
Views: 397641 Junky DIY guy
Switch Mode Power Supply Measurements and Analysis
 
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Learn how to use an oscilloscope to debug your power supply! Click to subscribe! ► http://bit.ly/Scopes_Sub Find out more about testing power supplies and power consumption with Keysight Oscilloscopes: http://www.keysight.com/find/scopes-power Keysight's Johnnie Hancock teaches how to use a digital storage oscilloscope or mixed signal oscilloscope to debug, characterize, and analyze your switching power supply. Learn basic tips and techniques for measuring, probing, and analyzing your designs. Learn more about using oscilloscopes: http://oscilloscopelearningcenter.com Check out our blog: http://keysightoscilloscopeblog.com Like our Facebook page: https://www.facebook.com/keysightbench/ Agenda: Power supply basics 1:35 linear power supplies vs switch mode power supplies Switching power supply measurements overview 2:57 Switching power supply trends 3:57 Probe Deskew 4:36 Power supply measurments -input line measurements and analysis 5:40 --Power quality 6:08 --Current harmonics 10:20 --Inrush current 12:20 -switching device analysis 13:40 --Switching losses 14:03 --Switching Phases 16:30 --Power Losses and Energy Losses 17:17 --Rds(on) 19:15 --Conduction and Toff Losses 21:02 --Vconduction measurement limitations 21:51 --Slew Rate 24:26 --Modulation 26:10 -Design Trade-offs 28:25 -output measurements 26:25 --Output Ripple 29:43 ---Probing Limitations & techniques 31:15 --Turn on time & turn off time 37:05 --Transient Response Analysis 38:12 --Efficiency 39:42 --Power Supply Rejection Ration (PSRR) 40:45 Wrap up & review 46:36 Recommended probes & commonly used probes 47:27 Additional technical resources 49:23 Q&A 49:46 Download free 30-day trials of Keysight's design & test software at http://www.keysight.com/find/free_trials Music by Lou Leaves the Room
Views: 6867 Keysight Labs
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: 4231 HomoFaciens
Land Boards - LM2596S DC/DC Power Supply Review
 
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Review of LM2596S DC-DC Buck Converter Adjustable DC/DC Power Supply Step Down Module from Ebay.
Views: 1649 Land Boards, LLC
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: 18700 Julian Ilett
DP50V2A Power Supply Module
 
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I found this constant voltage/constant current power supply for ~ £20, and decided to buy one and put it in a box, as a small bench PSU. You can find them on ebay, and other sites; the one I bought was from ebay vendor dodotech, which turns out to be Tomtop.com. Here's a similar unit to mine: http://www.tomtop.com/digital-constant-voltage-current-stepdown-programmable-power-supply-module-lcd-display-05000v02000a-e0999.html and here's one on ebay: http://www.ebay.co.uk/itm/LCD-Constant-Voltage-Current-Step-down-Adjustable-Power-Supply-Module-DT-F7F4-/252312544158 The spec says up to 60V input. My transformer only supplies about 27V after regulation, but this is fine for what I want to do.
Views: 4026 Martyn Davies
Ripple Blocker™ Output Noise Attenuators
 
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Originally posted 3/13/2012 The MIC94300 integrated load switch and MIC94310 DC-DC regulator incorporate Micrel's Ripple Blocker active filter technology to provide high frequency ripple attenuation for applications where switching noise cannot be tolerated.
Views: 42 EDN
Powering My LM2596 Buck Step Down Power Converter
 
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Watch the entire playlist: https://www.youtube.com/playlist?list=PLa_YmaYTNjmw1SJW-YK-Ga_kocuYC7T8j I bought this step down power converter. I found a cable in the shed I think will provide enough power for the small circuits I want to tinker with.
Views: 7518 Robert Gasperson
KORAD KA6005D -Precision Variable Adjustable 60V, 5A DC Linear Power Supply Unboxing.
 
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Product description technique: 60V, 5A full digital control single power supply, 10mV/1mA high accuracy and resolution, Low noise and ripple, CV / CC constant voltage and constant current mode, Highly reliable OCP, OVP, an arbitrary set protection Built-in 10 groups of parameters are stored Output switch control Power and memory function Keypad lock to prevent misuse Easy alternative to traditional digital power Precise voltage and current to generate the required KA series power supply from 30V-60V Wide range of output voltage, and resolution 10mV and 10ma Professional power supply design, with intuitive operability Simple and intuitive operation, enabling fast and accurate selection of voltage and current Prevent damage to the load You can set the overvoltage and overcurrent protection value, exceeded the threshold to prevent the voltage regulator can be passed Panel key lock key lock function to prevent critical test project undesirable results 10 user-programmable presets settings Simply press the recall button and save area user can bring up a key store data and save user settings Model KA6003D Voltage / Current Range 0-60V / 0-5A Load Regulation Voltage: ≤ 0.01% +2 mv / current: ≤ 0.1% +5 mA Linear Regulator Voltage: ≤ 0.01% +3 mv / current: ≤ 0.1% +3 mA Setting Resolution Voltage: 10mV / current: 1mA Setting accuracy (25Celsius degree+ - 5 Celsius degree) Voltage: ≤ 0.5% +30 mV / current: ≤ 0.5% +5 mA Ripple (20hz-20M) Voltage: ≤ 1mVrms / current: ≤ 3mArms Temperature Coefficient Voltage: ≤ 100ppm +10 mV / current: ≤ 100ppm +5 mA Readback resolution Voltage: 10mV / current: 1mA Readback temperature coefficient Voltage: ≤ 100ppm +10 mv / current: ≤ 100ppm +5 mA Response time (10% of rated load) Voltage: ≤ 100mS / current: ≤ 100mS Operating environment Indoor use Altitude: ≤ 2000m Ambient temperature is 0 ~ 40Celsius degree ≤ 80% relative humidity Fitting Manual, power cable (1.2M), Weight and dimensions 4.5 kg / 110 (W) * 156 (H) * 260 (D) Storage environment Ambient temperature -10 Celsius degree ~ 70 Celsius degree Relative humidity ≤ 70%
Views: 59 Technical Ocean
Battery Charger / Power Supply
 
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This is a nice inexpensive down converter that can be used for a power supply or a battery charger. Check this idea out: You can charge your project battery with this module then simply turn it around and run your project using the converter as the power supply. In this way you can set it to any voltage for the project and add the amount of current limiting you need to be safe. You probably don't need a fuse on the battery anymore. ICStations information: http://www.icstation.com/current-voltage-display-step-down-module-panel-p-2455.html 5V-30V 5A Red Current Voltage Display Step Down Module LED Panel This discount code may apply for 10% off. (one time) Code: Dadics SKU: 2455 Description Module Properties:Non-isolated step-down module Rectification:Non-Synchronous Rectification Input Voltage:5V-30V Output Voltage:0.8V-29V Output Current:Max 5A (over 3A to enhance heat dissipation) Conversion efficiency:95% (the highest) Switching frequency:300KHz Output Ripple:50mV (max) 20M Bandwidth Load Regulation:+/-0.5% Voltage Regulation:+/-2.5% Operating Temperature:-40℃ to +85℃ Size:51*26.3*14 (L*W*H)(mm) Module Name:Current and voltage table Measurement Accuracy:0.1% Refresh rate:About 200ms time Display:Dual 4bits 0.28" digital tube Current Range:0A-5A Voltage range:5V-30V Operating Current:Less than 15mA Display Color:Red Storage Temperature:-10℃ to +65℃ Input impedance:50 milliohms External dimensions:51*26.3*10mm Rechargeable lithium-ion battery When the lithium-ion battery voltage is relatively low, if the direct use of constant voltage charging, the voltage difference due to the larger, leading the charge current is too large, resulting in damage to the battery, so when you want to start using the constant battery current charging, when the charge to a certain extent automatically switches back when the constant voltage charging. Module above indicated IN-(input negative), IN+(positive input), OUT-(negative output), OUT+(positive output) must be connected to the right, otherwise may cause damage to the module.
Views: 56672 DadHav
Basics of  PWM Converters Controller Design. Part III. Peak Current Mode (PCM)
 
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An intuitive explanation of the basic concepts and theory of PWM converters controller design. This is the third part of a three parts lecture. Below are the links to the first two part: Part I. Fundamentals https://youtu.be/L3MRnEYdi8g Part II. Phase compensation https://youtu.be/yJucyH3WOvU
Views: 9561 Sam Ben-Yaakov