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: 177158 EEVblog
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: 106247 EEVblog
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: 189 nebojsa kovacevic
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: 9028 Gamers Nexus
Help, need 14.5 to 15 volts on these
Views: 5350 FAT CAT AMPS - Alleycat
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: 66797 Texas Instruments
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: 85277 VPT Tech Videos
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: 110255 furulevi
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.
Views: 3490 Power Integrations, Inc.
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: 8303 Electronic Doberman
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: 5522 Vicor Corporation
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: 1238 Micrelinc
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: 142631 dial2fast
Purchasing a cheap switching power supply from AliExpress can backfire - such as when spurious noise pops up on your LeCroy oscilloscope!
Views: 9093 Tam Hanna
HDPLEX 200W Linear Power Supply Ripple Test: Adjustable Rail A. Ripple test is performed at [email protected] (30W).
Views: 566 HDPLEX Fanless PC Case
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: 1226 Bob. Kalpon
Link for Pt.2: https://youtu.be/Y1NKW8xfdvs 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) Support Roger on Patreon: https://www.patreon.com/kainkalabs Support Roger on Patreon: https://www.patreon.com/kainkalabs 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: 8830 KainkaLabs
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: 37685 AVCSSGuitarWorld
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.
Views: 12353 Global Electronic Services
Beware of Scammers Please Contact Only through My Email [email protected] LOW ESR Cap Used https://www.banggood.com/10-PCS-25V-470UF-Multirotor-FM-Series-PDB-Capacitor-8x12mm-for-Power-Distribution-Board-p-1205011.html?p=CS101558118042016088&utm_content=tanghao&utm_campaign=mesh LC Filter https://www.banggood.com/L-C-Power-Filter-2A-RTF-LC-FILTER-3AMP-2-4S-LC-Module-Lllustrated-Eliminate-Moire-Video-Signal-p-1029694.html?p=CS101558118042016088&utm_content=tanghao&utm_campaign=mesh ------------------------------------ I highly recommend these boards over 2 months of testing best money can buy Racerstar StarF4S https://goo.gl/GeiaW1 Racerstar Star F3s https://goo.gl/adcc2P http://amzn.to/2A4J4Cl --------------------------------------------------------------- The HEX driver I recommended which i bought 2 sets of (Must have if your into building) https://goo.gl/mHW9HW Batteries I use https://www.banggood.com/Infinity-4S-14_8V-1500mAh-70C-Graphene-LiPo-Battery-XT60-Support-15C-Boosting-Charge-For-Racer-Drone-p-1058084.html?p=CS101558118042016088&utm_content=tanghao&utm_campaign=mesh Camera I use http://amzn.to/2iQHCwV Standoffs I find to be the best https://www.banggood.com/300pcs-M3-Nylon-Black-Hex-Scre-p-984310.html?p=CS101558118042016088&utm_content=tanghao&utm_campaign=mesh Xt60 Premade I use https://www.banggood.com/2-X-XT60-Male-Plug-12AWG-10cm-With-Wire-p-987484.html?p=CS101558118042016088&utm_content=tanghao&utm_campaign=mesh Heat shrink I mentioned https://www.banggood.com/410pcs-21-Polyolefin-Halogen-Free-Heat-Shrink-Tube-Sleeving-5-Color-10-Size-p-1009519.html?p=CS101558118042016088&utm_content=tanghao&utm_campaign=mesh Soldering station https://www.banggood.com/909D-Rework-Soldering-Station-Hot-Heat-Air-Gun-DC-USB-Power-Supply-220V-AC-EU-Plug-p-1063967.html?p=CS101558118042016088&utm_content=tanghao&utm_campaign=mesh Checkout the website for more details on the reviews Website updated 2 to 4 days after the release of the video http://dronemeshlab.com Follow me on Facebook https://www.facebook.com/DroneMesh/ Consider Following me and supporting on Patreon for Big giveaways. https://www.patreon.com/DroneMesh Contact: [email protected] --------------------- Song Used https://soundcloud.com/aka-dj-quads/living-in-stereo ------------------------------------ Song Used info Track was provided by NoCopyrightSounds Paul Flint - Savage [NCS Release] https://www.youtube.com/watch?v=8uSx3DyJjk0 Paul Flint • https://soundcloud.com/paulflintmusic • https://www.facebook.com/paulflintmusic • https://twitter.com/paulflintmusic • https://www.instagram.com/paulflintmu... • Mastering by http://redwolfmastering.com Song: Distrion & Alex Skrindo - Lightning [NCS Release] Music provided by NoCopyrightSounds. Watch: https://youtu.be/dM2hrLwdaoU Download/Stream: http://ncs.io/LightningYO ID: dj2938hd298hflahsknckdfhsidufh9398
Views: 24001 Drone Mesh
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: 341848 Afrotechmods
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: 26341 ElectronicThinking
These are notorious for failing and taking out the computer. This one was showing a higher than optimal output on the 5v line. I opened it up and replaced the 5v regulator with a switching regulator that I have been using on drones without problems for years. I soak test it under load and test for drift and ripple. Made the case safe but easy to open for repairs and further changes. Will probably put a saver in there too just to be sure. Good luck all. Inspiration/help for this video: https://youtu.be/oxxZgwm8lIs https://youtu.be/IIQLL88LcXk Regulator Used: MP1584 Adjustable 3A DC DC Step Down Converter EBay.
Views: 1596 Plan C
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: 12483 Drew Brashler
In this video we look at the TipTop uZeus power supply and demonstrate an easy fix for an uncommon problem. https://twitter.com/bloopclick https://www.instagram.com/bloopclick/ Buy: TipTop uZeus: https://amzn.to/2Isdlx1 Electronics grade silicon: https://amzn.to/2OqPEdL Forum picture used with permission.
Views: 144 Bloop. Click!
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: 10061 IanScottJohnston
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: 873 FTW
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: 146898 ScannerDanner
The Latest: "Peak Design Cuff" https://www.youtube.com/watch?v=4l8uCScxXyM --~-- After my dead motherboard and my friends dead motherboard and suspected dead power-supply, I got these 2 testers in order to be able to test such issues and debug them quickly without a struggle. For anyone of you who fixes his own or his friends computers this is a must small investment! Get yours on Amazon: Power-Supply Tester: https://amzn.to/2JpZwzA Motherboard Tester: https://amzn.to/2JoA5yf Get yours on AliExpress: Power-Supply Tester: http://bit.ly/2Jn5Nfr Motherboard Tester: http://bit.ly/2Q9TtSs ==================================== For questions and requests, email me to: [email protected] Facebook: https://goo.gl/JPsNdM Google+: https://goo.gl/9kFyJ4 Twitter: https://goo.gl/YrnbmE InstagramL https://goo.gl/r3pWsB Website: http://www.dimustech.net The Gear I use: https://www.amazon.com/shop/dimustech Want to help translate our videos to other Languages? https://www.youtube.com/timedtext_cs_panel?c=UChLFlc64P8-I3VE3atWogCw&tab=2 Disclaimer: Some of these links go to one of my websites and some are affiliate links where I'll earn a small commission if you make a purchase at no additional cost to you.
Views: 93 DimusTech
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: 813291 Junky DIY guy
Not a full review as I am a bit busy to fully test this thing at the moment. Noise performance is better than specified, but anything requiring really clean power should have a regulator as this does produce about 60mV of noise under moderate loading. Note that this has no UL/CSA approvals, but the build quality is what I expected for the price. And I've seen far worse as my fake crapple charger series of videos can attest.
Views: 386 randacnam7321
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: 12963 DIY Tech & Repairs
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: 1961 Jigg007
2017-03-15 livestream More tests on the Wanptek KPS305D, this time with a constant current load. Tests performed with an external 3.9 mH common-mode choke, as well as a 6.8 nF and a 100 nF capacitor across the output. With this additional filtering, performance is decent. Public domain, etc.
Views: 1040 FFcossag
All power supplies have a power input connection, which receives energy in the form of electric current from a source, and one or more power output connections that deliver current to the load. The source power may come from the electric power grid, such as an electrical outlet, energy storage devices such as batteries or fuel cells, generators or alternators, solar power converters, or another power supply. The input and output are usually hardwired circuit connections, though some power supplies employ wireless energy transfer to power their loads without wired connections. Some power supplies have other types of inputs and outputs as well, for functions such as external monitoring and control. DC power supply Edit A DC power supply is one that supplies a constant DC voltage to its load. Depending on its design, a DC power supply may be powered from a DC source or from an AC source such as the power mains. AC-to-DC supply Edit Schematic of basic AC-to-DC power supply, showing (from L-R) transformer, full-wave bridge rectifier, filter capacitor and resistor load DC power supplies use AC mains electricity as an energy source. Such power supplies will employ a transformer to convert the input voltage to a higher or lower AC voltage. A rectifier is used to convert the transformer output voltage to a varying DC voltage, which in turn is passed through an electronic filter to convert it to an unregulated DC voltage. The filter removes most, but not all of the AC voltage variations; the remaining AC voltage is known as ripple. The electric load's tolerance of ripple dictates the minimum amount of filtering that must be provided by a power supply. In some applications, high ripple is tolerated and therefore no filtering is required. For example, in some battery charging applications it is possible to implement a mains-powered DC power supply with nothing more than a transformer and a single rectifier diode, with a resistor in series with the output to limit charging current. More Detail: https://en.m.wikipedia.org/wiki/Power_supply
Views: 264 Marshal Institute
REVEAL What is the effect of filter capacitor on ripple voltage? LIST OF RELATED VIDEOS OF What is the effect of filter capacitor on ripple voltage? IN THIS CHANNEL : What is difference between half wave and full wave rectifier? What do you mean by effective value? What is the effect of filter capacitor on ripple voltage? What is the difference between RMS and peak watts? What is the effect of load resistance on ripple voltage in the presence of filter capacitor? How do you rub out a scratch on a car? How much does it cost to fix a broken headlight? How much will it cost to repair a keyed car? How much does it cost to replace a bumper? What happens to potential energy as temperature increases?
Views: 35 Robert Robert
In this fourth video 'About Radio' I talk about the smoothing circuit for the HT DC in the GEC BC5645 radio. If this helps you please let me know. Kind regards ... Andy gw0jxm ~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~ In this series of 'About Radio' I want to show you a circuit diagram for a radio and talk you through what each component is there for. There may be one or two anecdotes along the way, please feel free to let me know the funny radio type things that you've seen and done. I haven't uploaded the next video yet but when I do I'll give you the link details here. Here's the full link to 'About Radio ... Part 1 by Andy Davies' http://www.youtube.com/watch?v=1WzbAmm_oF0 Here's the full link to 'About Radio ... Part 1 by Andy Davies' http://www.youtube.com/watch?v=1WzbAmm_oF0 Here's the full link to 'About Radio ... Part 2 by Andy Davies' http://www.youtube.com/watch?v=lYgJSlEHj1I Here's the full link to 'About Radio ... Part 3 by Andy Davies' http://www.youtube.com/watch?v=2EaAG2HXgns HD Link to part 3 http://youtu.be/2EaAG2HXgns?hd=1 Here's the full link to 'About Radio ... Part 4 by Andy Davies' http://www.youtube.com/watch?v=Xp5KyJref2c HD link to part 4 http://www.youtube.com/watch?v=Xp5KyJref2c&hd=1 Here's the full link to 'About Radio ... Part 5 by Andy Davies' http://www.youtube.com/watch?v=ZzN8a_cqfPQ HD link to part 5 http://www.youtube.com/watch?v=ZzN8a_cqfPQ&hd=1 Here's the full link to 'About Radio ... Part 6 by Andy Davies' http://www.youtube.com/watch?v=y8ahccwnqfo HD link to part 6 http://www.youtube.com/watch?v=y8ahccwnqfo Here's the full link to 'About Radio ... Part 7 by Andy Davies' http://www.youtube.com/watch?v=GXUh_h86FHc HD link to part 7 http://www.youtube.com/watch?v=GXUh_h86FHc&hd=1 If you're interested in this series of videos then I recommend that you also take a look at Rick McWhorter's channel. This is the full link to one of the videos by Rick McWhorter http://www.youtube.com/watch?v=IWxeWnnU4i0 (AllAmericanFiveRadio) Do download his book, it's free but the information is priceless! Rick has put a huge amount of effort and a lifetimes worth of experiences into his videos, I think you find them interesting and entertaining, but be warned, you'll get hooked! I have. In my videos, inevitably there will be things that I forget to mention and maybe some things I get wrong, please feel free to comment and put me right if I go wrong. It's some 40 odd years since I was involved with domestic radios, that was before I qualified as an electrician and subsequently moved on into high power high frequency electronic engineering. I'm not setting out to tell you how to repair radios, the fact that you've read this far probably means you're Interested in radio and I'm merely helping to confirm what you already know. With regards to safety, when I was training they told me that if 30 milliamps passes through you for 30 milliseconds can kill you. Don't make the mistake that thinking that an isolation transformer will protect you from being electrocuted. An isolation transformer, correctly installed, will only protect you from passing current from the mains electrical supply to earth, that's all. If you get across the HT AC or the HT DC that is the High Tension Alternating Current or High Tension Direct Current supply of the radio and the conditions are right, it will stop your heart and if there's no one around to start it again it might just stay stopped! Do use an isolation transformer but back that up with good safe working practice. I'm not setting out to teach you good working practice but do be aware volt for volt DC is more likely to stop your heart than AC but I can also tell you that both hurt and both can kill!
Views: 2551 AndyDaviesByTheSea
A very basic AC Ripple % Test before and after replacing the Electrolytic multisection Capacitor. Thanks again for watching and subscribing to my channel. The playlist for this series: https://www.youtube.com/playlist?list=PLjLu4V-71S1LhAVrMA1LK97h9JgxYrxot
Views: 858 RestoreOldRadios
A defective 12V power supply is opened, examined and repaired. Contact info, sending stuff in etc.: http://xo4.uk/?YTT Support this channel at Patreon: https://www.patreon.com/jwflame Twitter: https://twitter.com/jwflame Facebook: https://www.facebook.com/jwflame Instagram: https://www.instagram.com/jwflame/ Website: http://xo4.uk/?PsU
Views: 1039261 John Ward
Using 100kHz to remove the impedance 1(2*pi*F*C), the impedance will become small, and then we can measure the true series resistor value. A bad E-capacitor have larger ESR and create large ripple rather than filtering noise. Normally, a big capacitor is larger than 3 ohm. Therefore, we can measure the capacitor is bad, damaged or in good condition by using this theory. Because our ESR meter only applies less than 15mV DC or peak to peak on a good capacitor, as a result we can use it as in circuit test. Because this low testing voltage, it cannot turn on the semiconductor inside a circuit under testing. During repairing TV, LCD, Audio board, etc. we can in circuit testing the capacitor is good or not. Advantage of V2: 1) Change square wave to sine wave 100 KHz, reduce square wave's high frequency component, and affect the reading passing the test leads and capacitor. 2)Higher Resolution up to 0.001 ohm. 3)128X64 dot matrix LCD, with larger value display and information 4)Embedded 25Volt capacitor table at LCD, auto display the capacitor is good or bad reference to common 25Volt electrolytic capacitor. 5)New plastic case, curve design for hand carrying. New stand for 60 degree stand on desk. 6)Use 2X AA battery, more convenience and longer battery life than 9V battery. 7)Support external USB power, using standard micro-USB port. Specification: 1)Accuracy: Up to 1% (detail on above table) 2) High Resolution: 4 digit, or 0.001Ohm @ 1 Ohm range 3)Measuring voltage: ~40mV RMS (TESTING VOLTAGE) 4)Clamping voltage: ~0.15V (open voltage) 5)Battery 2X AA 1.5V battery (Not included) 6)External Power: 5V micro USB 7)Operating current0.02A 8)Battery Life time: 80 Hours Package 1x MESR-100 V2 2 x test clips Using true 100 KHz sine wave to measure the ESR value, which is equal to the testing method of capacitor manufacturer. - Dual terminal, for fast and easy inspect general capacitor or resistor, a printed ESR table for fast check. - Measuring range from 0.001 to 100.0R, support IN CIRCUIT Testing. - Auto-ranging capacitor ESR and Low Ohm Meter. - Wide Measurement Range
Views: 130 BlingOnIt Reviews