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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: 173352 EEVblog
Comparing different types of DC power supplies: ripple and noise
 
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A purpose of this video is to show you a measurements of different DC power supplies that we widely use now days. By building power supplies for long time, I have found a concept that works for me. It is a concept that is well known to the engineers, but many people show a considerable ignorance in this field, so I thought this is worth mentioning. Since theory about ripple and noise can be found easily elswhere, I did not want to exagurate, but to show instead, a power supply differences, and how to build good, low noise power supply using simple and cheap techniques. 1. Use isolation transformer 2. Use multiple ESR electrolicit capacitors for a capacitor bank 3. Use LM723 as a voltage stabiliser! 4. Use bypass capacitors on the output Of course, there is always something else that could be told about this subject. It requires more deeper analysis. Neverthless, I hope that by giving a small guidelines, one can finish the job successfully.
Views: 106 nebojsa kovacevic
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: 8473 Gamers Nexus
switching power supply  Noise and Birdie Gone !! MeanWell supply
 
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Help, need 14.5 to 15 volts on these
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: 83097 VPT Tech Videos
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: 63784 Texas Instruments
A multi-stage EMI-Filter for DC Power-Supplies  Pt.1: Noise sources and noise-coupling
 
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The filter is now available readily assembled in 3 different ratings as well as bare PCBs for self-assembly in our shop: http://www.ak-modul-bus.de/stat/stromversorgung.html (This is the shop for customers from Europe. For customers from overseas it will be available from February 2018 in our new shop: www.ak-modul-bus.de/eng) Roger explains 4 sources of noise and on which ways they couple into sensitive circuits like AM radio-receivers or precision analog-circuits. There is a fifth source of noise with SMPS working in so-called "discontinous mode". Will be explained in Pt. 3 of this series. Forum: https://forum.kainkalabs.com/forumdisplay.php?fid=3 Shop: http://www.ak-modul-bus.de/ twitter: http://twitter.com/kainkalabs facebook: http://facebook.com/kainkalabs
Views: 8214 KainkaLabs
Watch actual results of reduced noise by adding 10uF capacitors to power supply lines in a circuit
 
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https://www.electronicthinking.com We're just getting started with the Applied Guide to Electrical Engineering and it is already shaping up to be quite a valuable way to learn electronics. This video shows exactly what happens when you add 10uF capacitors across the power supply lines to an analog front-end section of a digital storage oscilloscope that we are building in the 3rd month. I hope you learn valuable tips from the free videos such as this and there is even more in the full program.
Views: 25714 ElectronicThinking
How to reduce PC Power Supply noise (PSU)
 
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An old dusty PC was making some terrible noise. The noise was present for around a few minutes at the first startup, than it disappeared. The loud sound was generated by the power supply unit's (PSU) cooler fan. The fan was cleaned, the axle lubricated and the noise disappeared.
Views: 103284 furulevi
#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
Farnell LT30-2 Power Supply Repair & Modifications - Part 1
 
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Part 1 of the video series: Repair & Modification of a Farnell LT30-2 Bench Power Supply. In this video I repair a fault on Channel 1 of the power supply that meant the 0-30Vdc adjustment wouldn't go below 13Vdc. More on this developing project here:- http://www.ianjohnston.com/index.php/videos/63-video-blog-024-farnell-lt30-2-repair-modifications Visit my website - www.ianjohnston.com
Views: 9639 IanScottJohnston
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: 4757 Vicor Corporation
Power Supply Filter Capacitor Respect
 
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Just a quick warning to not do what I've done in the past and shock the crap out of yourself on power supply filter caps! ---------- Music by Kevin MacLeod (incompetech.com) Licensed under Creative Commons "Attribution 3.0" http://creativecommons.org/licenses/by/3.0/"
Views: 7729 Electronic Doberman
The Dangers of Noise on Power Supplies
 
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This video discusses issues related to the reliability in electronic circuits with reference to the consequences of having noise on the circuit's power supply lines.
Views: 1066 Harvey Twyman
M4 ATX 250 Watt DC-DC Carputer Power Supply Noise Issue
 
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This is the waveform of the 12 V OUTPUT rail on my M4 ATX power supply. Volts/Div is set at 0.2, time/Div is 1us. It is roughly a 1.5 volt peak to peak spike/harmonic ringing at 2-4Mhz. Computer was tested on a bench, running on 120V to 12V switching PSU, and 12V battery, same problem. When moved into a car, effects other 12V electronics in the automobile such as amplifiers and monitors. Still persistent in bench (120V) bench equipment, but not as noticeable.
Views: 1950 Jigg007
Switch mode Power Supply Noise
 
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Noise comming from a flyback power supply causing timming distortions seen on a LED.
Views: 1070 luizdanielsantos
Understanding Ripple Blocker
 
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Micrel's Carlos Huerta explains Ripple Blocker, a power supply noise attenuator from Micrel. This product reduces or eliminates power supply noise that can interfere with all kinds of electronic devices--from cellphones to GPS units, from medical scanning devices to cameras.
Views: 1214 Micrelinc
Noise level in DC linear electronics laboratory power supply / electrical noise
 
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Short video about how to find the noise level using oscilloscope in its AC coupling function and comparing the trace with Siglent SDG2000X function generator. If you liked the video or if it was worthy to you, don't forget to give a LIKE. You can also join the Channel for more interesting videos about electronics workshop. Thanks for watching it!
Views: 1074 Bob. Kalpon
Alternator Diode Check and AC Ripple Check
 
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How to Check an Alternator for AC Ripple or a bad diode
Views: 34849 ThePeoplesGarage
Fixing a Flyback Supply that has Audible Noise
 
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This course describes the steps necessary for troubleshooting and repairing a power supply that is producing unacceptable levels of audible noise. Possible causes are discussed and solutions are recommended. Take this course if your power supply is producing loud audible noise when tested in the final enclosure.
Bench Power Supply Full Review (variable 0-30V & 0-10A)
 
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Bench Power Supply 30V 10A 110V Variable Output https://amzn.to/2pPuUhN 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: 134189 dial2fast
MINT1065A2475C01 24VDC 2.7Amp Power Supply
 
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SL POWER P/N: MINT1065A2475C01 Input: 100-240VAC 50-60Hz Output: 24VDC @ 2.5A Open frame, Medical Grade Switching power supply. 2% Line/Load Regulation, 240mV max Noise / Ripple. Header Pins in & out. UL/canada/usa/TUV/CE Listed.
Views: 44 mpjaonline
Switching Power Supply Noise - Magnetic fields
 
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This video describes a quick and effective way to measure magnetic field emission from switching power supplies. Such emissions have caused many field problems.
Views: 25199 Doug Smith
#214 Tektronix 2432A Oscilloscope Power Supply Re Cap
 
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Remember to subscribe ! This shows my teardown of the power supply of my 2432A and the testing and replacement of some of the capacitors. I was suspicious that the PSU had poor ripple as a have had a couple of tantalum caps fail, which don't like ripple, this was done as a precaution really, the only behaviour I had noticed was that MAYBE the noise floor was higher than it used to be (but I wasn't certain). Give this a Thumbs Up if you like it, it helps to grow the channel, also please share the video with your friends to help the channel to grow ! To donate money to help fund items for the channel please use one of the methods below, cheers ! PayPal Donations: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=SDDYPAS9BJ2CE Patreon: https://www.patreon.com/TheDefpom #ifixstuff #thedefpom #electronicsrepair TheDefpom Merchandise: https://teespring.com/stores/thedefpom
Micrel Ripple Blocker MIC94300
 
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The MIC94300 integrated load switch and MIC94310 DC-DC regulator incorporate Micrel's Ripple Blocker active filter technology to provide high frequency ripple attenuation (switching noise rejection) for applications where switching noise cannot be tolerated by sensitive downstream circuits.
Views: 221 jgursslin1
Ultra X2 750W PSU Ripple
 
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We have tested out the Ultra 750W X2 PSU and spent some time with this PSU on our Tektronix TDS 2002 scope to see how stable the 12v rails are.
Views: 884 Benjamin Heide
Removing RFI Noise from MacBook Power Supply
 
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This is a video regarding Ham Radio, sorry audio guys, still working on X32 videos! My MacBook power supply was introducing a lot of RFI noise into my radio while working 40 meter digital. To fix this I wound the power supply cord around a #31 toroid core with a 2.4" outer diameter. The core provided a large resistance on the wire in the frequency range of the ham bands to remove the RFI. Adding this core took the noise from an S5 down to an S2 or S3 which is about a 12dB-15dB reduction.
Views: 12028 Drew Brashler
Trying to power a cordless drill with a damaged PC power supply
 
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This PSU has seen better days for sure.
Views: 1520 Ultimate DIY
DPS3005 - Digital Power Supply from Banggood
 
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DPS5003 and DPS3005 are (adjustable) Digital Power Supply available on Banggood. First one can work up to 50V/5 A, and second one 32V/5 A. Another version, not mentioned (author not aware of that) is DPS 3003, with available current up to only 3 A. Also other versions for higher current, or with lower voltage/current accuracy are not mentioned because it is out of scope of this video. At the time I am buying this supply, 50V one is sold out, so I bought 32 V version. Input voltage can go up to 40 volts, but output voltage is always at least 1.1 V less than input, or 32 V maximum for DPS3005 or 50V for DPS5005. Note that this device is just controller unit - no transformer, no rectifier and/or capacitors. Use your own transformer with rectifier, or another unregulated PSU as input PSU. Minimum input voltage is 6V, below which it refuse to output any voltage. At say 5 V input, it can just show display, but can't output proper result - and it refuses to output anything. Reason is that control device inside require stable voltage of 5 V, and in order to get it - input voltage should be at least 1.1 V above that value. On this video, I am using old computer PSU, which gives me 11.5 V (this is old and probably broken unit). Forgot to mention bottom row on the display - showing input voltage, but I bet you are already figured it out. DPS3005 ($23.08 US until July 10 - hurry!) - https://goo.gl/493WLe DPS5005 ($25.79 US until July 10 - hurry!) - https://goo.gl/hHFfSa On HobbyKing, DPS5005 is over $32 US, so hurry - promotion sale will be over very soon. -~~~~~~~~~~~~~§~~~~~~~~~~~~~~- Patreon supporters: Kermets - https://www.youtube.com/user/kermets Gorazd Cok - https://www.youtube.com/user/neutrno Your free will is to help me grow my channel and improve my tools for making videos. Just buy over my affiliate program on Banggood, no extra expense to you: https://goo.gl/mpfFKA New on Banggood ? Become my 'permanent Banggood friend': https://goo.gl/ZqCjMa Become a Patreon!: https://www.patreon.com/MilanKarakas » Google+ | http://plus.google.com/+MilanKarakas » Facebook | https://www.facebook.com/milan.karakas.7 » Twitter | @milan_karakas » Instagram | https://www.instagram.com/milankarakas/ » Web | http://wildlab.org
Views: 8714 Milan Karakas
SIGLENT - SPD1000X Series Programmable DC Power Supply
 
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The SPD1168X supply is an economical, stable, reliable, 16V/8A power source with low ripple and noise under 350 uV RMS/3mVpp; 2 mA RMS and fast transient response time of 50 μs. 16 http://www.saelig.com/category/siglent-power-supplies.htm
Views: 151 SaeligCompanyInc
Unboxing, voltage and noise test - 12v  power supply
 
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Unboxing, voltage and noise test in a Chinese 12v 20a power supply with cooler.
Views: 49 Fellipe Sanches
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. Example diodes on Amazon: http://www.amazon.com/exec/obidos/ASIN/B00W17LOBO/afromods-20 Check out my webpage for more handy electronics tutorials http://www.afrotechmods.com
Views: 330369 Afrotechmods
RF Man discusses load sharing in parallel power supply's and boost converters
 
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Two techniques are demonstrated to resolve load sharing problem that occur when using D.C. Power Supplies in parallel. If you are interested in purchasing one of my LDMOS amplifiers, you may contact me at 678-646-8986 or checkout my website at RFlinear-amplifiers.com
Views: 3495 RF Man Channel
Siemens Simodrive 611 Card Repair
 
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Watch as our technician demonstrates a Siemens Simodrive 611 Card component level repair! In the video, our technician performs a full load test using our custom engineered Siemens Simodrive Test Stand to confirm full functionality. Upon inspection, the customer reported that the card would not turn on. To check if there was an issue with the power supply on the board, our technician used a volt meter and found that there was a ripple on the supply. From there, our skilled technician made the necessary repairs to ensure proper functionality. Want to see more videos? Subscribe to our YouTube Channel! If you're looking for a quote or wish to talk with a technician, head on over to our website at www.gesrepair.com Transcription: At Global Electronic Services we repair industrial electronics, motors, servo motors, hydraulics, and pneumatics down to component level. We specialize in repairing old and obsolete equipment that is no longer supported by the OEM. Because we have so many custom engineered test stands, we can load test your old and obsolete units to ensure they are repaired correctly and that the quality surpasses OAM standards. Here we have a card out of a Siemens Simo drive series servo drive. The customer has sent this unit in for repair, and reported that the servo drive wouldn't power up. Upon phone consultation with the customer, the technician has gone step by step walking them through a checklist to determine that the servo card is where the problem is, and that it has a power supply issue. To check the power supply section of the board, the technician checked it with a voltmeter. He found that there was a ripple on the supply. The most obvious cause for the ripple is the power supply and noise filter capacitors. After the technician has finished changing out the capacitors, he will now load test in our siemens simodrive test stand. First he will remove the known good servo card and then replace with the customers servo cart to see if changing out the capacitors has resolved the power supply issue. He will turn on the power, and check the cards display. The unit still appears dead. As you can see, there is no display. Without the use of our custom test stand to actually function test the servo card, the unit could have shipped out to the customer repaired, as just powering up the card on a bench after changing the capacitors would have indicated the problem was resolved. The technician now removes the unit from our test stand. Now the technician will check the switching portion of the power supply, because we know that the back panel from our test stand is providing the necessary external power to the card, and the card is still not turning everything on inside. This indicates the digital switch IC is defective. Now the technician is changing out the IC, and then we will be ready to function test the servo cart again in the test stand. The card is ready to test. The technician is now inserting the card back into the test stand and will now power up the servo drive. Success, we have a working card. Now we will engage the servo motor to load test the unit. As you can see everything is working properly. This unit is ready to go back to the customer.
Bad Alternator Diode causing transmission/speedometer problems
 
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Speedometer reads 20 mph in park. Transmission output speed sensor (vehicle speed sensor) codes. Transmission will not shift (2nd gear limp mode) from a bad alternator diode. Clean, strong alternator output is critical for vehicle electrical performance. Without it, you can run into all kind of strange symptoms that you may not necessarily associate with an alternator problem, and this case study is a perfect example. I also supply some general guidelines for ripple testing that can be applied to any make or model out there. Engine Performance Diagnostics chapter 1 page 27 Symptoms - speedometer moves off of zero with the vehicle stopped and in gear - check engine light (EGR fault code, unrelated) - transmission shifting problems Fix - replace the alternator (failed rectifier diode) Tests shown - how to check for AC ripple using a lab scope with AC coupling - identifying excessive AC ripple in a sensor voltage waveform - how to eliminate a failed alternator by disconnecting the control circuit - checking AC ripple at the alternator vs. at the battery Tools used - Autel MS908 MaxiSYS Automotive Diagnostic & Analysis System - USA Version https://www.jbtoolsales.com/autel-ms908-maxisys-automotive-diagnostic-analysis-system-usa-version#oid=1014_1 - PicoScope 4425 4 Channel Standard Diagnostic Kit http://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=http://www.aeswave.com/PicoScope-4425-4-Channel-Standard-Diagnostic-Kit-p9276.html Playlist - (Chapter 1) Misfire ID, Compression Tests, Vacuum Leaks, Fuel Trim, Head Gasket, Restricted Exhaust, Low Power, DMM https://www.youtube.com/playlist?list=PL5E3AEC36DB838BB1 Related videos - How to test an Alternator (alternator not charging from a blown fuse) - Mazda https://youtu.be/--AdY8z1QfU - How to test an alternator (Chrysler Dodge Jeep) https://youtu.be/AvLbb48tQPw - Computer Controlled Alternator Testing - 2006 Mercury https://youtu.be/DHKF6v2QJhc - Battery keeps going dead (what to test before replacing) https://youtu.be/AA-vHbE1IA8 For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere! Disclaimer: Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.
Views: 140278 ScannerDanner
How to test a DC Power Supply - Technical Training for Musicians - Guitar / Bass Players.
 
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This is a technical related video clip related to basic audio troubleshooting and minor repairs - How to test a DC power supply. All musicians should understand some basic technical fundamentals that will allow them to make repairs on their audio equipment as needed. Visit www.avcssguitarworld and check out our database of over 500 video clips, and over 200 Handouts for beginner Guitar and Bass players.
Views: 35537 AVCSSGuitarWorld
Telonic explores Switch Mode Power Supply Noise Measurement
 
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I created this video with the YouTube Video Editor (https://www.youtube.com/editor)
Noise-free Flyback power supply.
 
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Multiple output Power Supply with right engineering.
Views: 205 luizdanielsantos
TSP #6 - Rigol DP1116A and DP1308A Programmable Power Supply Review (Part 2/6)
 
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In this episode (Part 2/6) Shahriar reviews the brand new Rigol DP1116A and DP1308A programmable power supplies. Furthermore, the power supply features are compared against an Agilent dual output power supply. "DP1308A & DP1116A are high-performance programmable linear DC power supply. They have excellent features including timed outputs and tracking capabilities; extremely clean ripple and noise, comprehensive over-voltage, over current, over-temperature protection, a large and clear user interface, super performance specifications,and multiple standard interfaces. The DP1308A & DP1116A meet the requirements of various forms desktop and integrated system testing. DP1308A & DP1116A are widely used in research and development, education, industrial control, mobile communication, and product testing, etc." The MSRP for both products is $849. Rigol offers a 30 day no-questions-asked return policy and a 3 year warranty. They also provide an excellent local technical support out of tropical Cleveland, Ohio.
Views: 10728 The Signal Path
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: 1255 Onstate LED Lighting
Troubleshooting Eurorack Noise Issues
 
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After thinking I was going to lose my mind due to, um, noise issues, I replaced the switching power supply (Volgen KTPs65-1543DT 3P) on an Enclave case (MakeNoise Powered Bus Board) with a linear power supply (Triad WDU 15-1700) and that fixed almost all of the issues. The situation could be further improved by putting oscillators and VCAs on their own bus board. This video is a bit dry and not very linear. Skip to 11:30 for the before/after punchline. Thanks to Paul T Schreiber for suggesting a linear power supply and to Mr. Nelson of Trogotronic for pointing out that one of my power supplies was linear after a lengthy email exchange about diagnostics. To apply this to your situation, you need to know three things, all of which should be on the label for the power supply: 1. The input voltage and frequency. In other words, your wall power A/C is. In the US that's 120V at 60Hz. 2. The output of your existing power supply. e.g. 15V at 1.7 A 3. The polarity of the output. With those parameters you can search for a power supply. In the US Mouser and Newark have great interfaces for finding power supplies. You can identify linear power supplies because they only accept a single voltage/frequency combination. In addition, it's typical to see a capacitor at the end of the circuit which helps to smooth the converted current. In my case I went with this one rather than a more powerful one specifically because the output circuit was very simple, with a typical bridge rectifier followed by a capacitor: http://catalog.triadmagnetics.com/Asset/WDU15-1700.pdf
Views: 820 FTW
Building a 1000W power supply - DPS5020
 
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1000W power supply that everyone should have. Check links below to get one you too -- More information below! -- Quick build video. If you dont have a station like this already you should get one today! I will follow up this unit a bit more in future videos! Whats really good about this unit is that you can run it off your 14s battery bank!! (60VDC) Banggod links! Box: https://goo.gl/EtunVp More Arduino Compatible SCM & DIY Kits -- https://goo.gl/CSJk9x 15% off Home Hardware & Gadgets -- https://goo.gl/FmnPvQ (coupon included) DPS5020 Ebay: https://goo.gl/svtdt6 Amazon: http://amzn.to/2EPcjZp Powersupply to above Ebay: https://goo.gl/zrKn5Q Amazon: http://amzn.to/2EOg8xY Power supply case sponsored by Banggood https://goo.gl/EtunVp Other powersupply units: https://goo.gl/dQQZNc Big ass reflow and soldering station: https://goo.gl/XT6tu7 Smaller reflow and soldering station Ebay: https://goo.gl/bYkDmA Amazon: http://amzn.to/2F0o2ax Crimping tool https://goo.gl/Lw8oSV ------------------------------- Do you want to support my channel? Below links cost you nothing to use: Complete list of recommended stuff: http://diytechandrepairs.nu/complete-solar-best-buy-list/ Ebay: https://goo.gl/PwRR68 Amazon: https://goo.gl/VSU4YH Amazon store https://www.amazon.com/shop/influencer-6fceca1d Banggood https://goo.gl/fcCjJ5 Gearbest: https://goo.gl/tay4J6 Patreon and Paypal: https://www.patreon.com/DIYtech [email protected] / https://www.paypal.me/diytechandrepairs Become a Patreon? https://patreon.com/invite/bqxpyp Manage your youtube videos like I do? Use below https://www.tubebuddy.com/DiyTechandrepairs --------------------------------------- Links to my site and current solar layout: http://diytechandrepairs.nu/current-solar-layout/ https://www.facebook.com/diytechandrepairs/ http://www.diypowerwalls.com/t-Esperyd-Solar-and-powerwall-system Steemit if you want to read more! https://steemit.com/@diytechandrepair DIY powerwall forum: https://goo.gl/Hfr529 -------------------------------------------------------------- Music Disfigure - Blank [NCS Release] https://www.youtube.com/watch?v=p7ZsBPK656s Different Heaven - Nekozilla [NCS Release] https://www.youtube.com/watch?v=6FNHe3kf8_s Desmeon - Back From The Dead [NCS Release] https://www.youtube.com/watch?v=OFWT4yfPdjo
Views: 11145 DIY Tech & Repairs
Switchmode power supply VS russian radio
 
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Cheap RF noise-meter
Views: 155 bmajor
12v 10a switching power supply
 
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12v 10a switching power supply have ETL listed,this ac power adapter without fan but natural cooling and low noise,our power supply can be use for many different electrical devices,with LED light display. Website : http://www.pc-adapters.com
Views: 31 Bossgoo. com
#5 - Agilent 6612C repair and testing
 
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Repairing of Agilent 6612C power supply, which was bought on eBay. It was sold "for parts or repair", and was cheap enough so that I couldn't resist. Agilent 6612C key features: Output ratings Voltage: 0 to 20 V Current: 0 to 2 A Programming accuracy at 25°C ±5°C Voltage: 10 m V Current 0.05% + 1 mA Ripple and noise (20 Hz to 20 MHz) Voltage rms: 0.5 mV Voltage Peak-to-Peak: 3 mV Normal mode rms: 1 mA Service manual: http://cp.literature.agilent.com/litweb/pdf/5962-8200.pdf
Views: 7963 FeedbackLoop
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: 658581 Junky DIY guy
Precision OpAmp Design Pt.3: Noise-Pickup, Shielding, Grounding, PS-Decoupling
 
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Avoiding noise-pickup, ground-loops and other unwanted singals. Ground-loop video: https://youtu.be/YhDH7rOIuGg Capacitor-combinations for decoupling/bypassing power-supply noise video: https://youtu.be/cSWUMly3nUE Some recommended online OpAmp-books: "OpAmps for everyone": https://focus.ti.com/lit/an/slod006b/slod006b.pdf "OpAmp Applications Handbook" (Walt Jung): www.kelm.ftn.uns.ac.rs/literatura/mpi/pdf/Op%20Amp%20Applications%20Handbook.pdf or directly from Analog Devices: http://www.analog.com/en/education/education-library/op-amp-applications-handbook.html "Linear Circuit Design Handbook": http://www.analog.com/en/education/education-library/op-amp-applications-handbook.html "Handbook of Operational Amplifier Applications": www.ti.com/lit/an/sboa092b/sboa092b.pdf "New OpAmp Ideas": http://www.ti.com/litv/pdf/snoa638a
Views: 1023 KainkaLabs
Bench Power Supply Full Review (variable 0-30V & 0-10A)
 
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Bench Power Supply 30V 10A 110V Variable Output http://bit.ly/2cQIZDo 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
New CPS-3205 II 160W (110Vac/ 220Vac) 0-32V/0-5A,Compact Digital Adjustable DC Power Supply
 
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The use of microprocessor (MCU) control, high cost High power density, compact appearance Aluminum housing, very low electromagnetic interference The encoder is used to adjust the voltage and current settings quickly and accurately Four digital voltmeter and three digital ammeter, set and display accurate to two decimal places When the operating current is less than 1A, ammeter automatically displays mA High efficiency and efficiency up to 88% Low ripple noise, peak ripple is less than 30mV Output ON / OFF switch Input operating voltage 220VAC / 110VAC switch Lock button, the output switch button and adjust the lock knob to prevent accidental changes Intelligent protection: Output short-circuit protection, tracking OVP, Tracking OCP, OTP Voltage: 0-32V Current: 0-5A Power: 160W Top performance cost ratio High power density, smallest and compact Aluminum shell, lower EMI The microprocessor(MCU) control Using Encoder to set the voltage and current Four digital volt meter and three digital current meter The current meter displays mA automatically when current belows 1A High efficiency, up to 88% Output ON/OFF Watt switch Intelligent protection: Tracking OVP, Tracking OCP, OTP, Output short circuit protection
Views: 57 林晓麒

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