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Title:All You Need To Know About Power Adapters To Fix Stuff! Part 1.
Duration:02:17:18
Viewed:141,035
Published:29-06-2022
Source:Youtube

LER #262 All you need to know about Switch Mode Power Adapters (Wall Warts) To FIX Stuff!.. PART 1. In this video we learn about the Power Supply Circuit Schematics, HOW THEY WORK and WHAT GOES WRONG! We have four practical REPAIR examples. If you want to learn how to repair power adapters, this video, and part two, are exactly what you were looking for. CHAPTERS 00:00:00 Introduction 00:02:15 Opening Up The Power Supplies 00:13:04 Danger!! Danger!! High Voltage 00:15:01 The Usual Suspects 00:15:32 Practical Repair #1 00:31:59 Basic SMPS Schematic (Pt 1) 00:38:44 Hot Ground 00:40:18 Basic SMPS Schematic (Pt 2) 00:45:20 How Inductors / Transformers Work 00:52:10 Basic SPMS Schematic (Pt 3) 00:53:03 How Analog PWM Works 00:59:35 Basic SMPS Schematic (Pt 4) 01:09:04 Common Faults 01:16:26 Feedback Without Opto-Isolator 01:23:19 Practical Repair #2 01:54:52 Practical Repair #3 02:02:42 Testing the PSU Under Load 02:06:04 Practical Repair #4 02:14:25 Epilogue The ALL YOU NEED TO KNOW Series *Resistors* https://www.youtube.com/watch?v=ae-1qPx9Tww *Capacitors* https://www.youtube.com/watch?v=R9slJUqT6Ls *Inductors* https://www.youtube.com/watch?v=iOFmrR1E2s8 *Diodes* https://www.youtube.com/watch?v=YW3jpiQ4xpA *Zener Diodes* https://www.youtube.com/watch?v=trjbHhLERic *Transistors* https://www.youtube.com/watch?v=GDDwTbM9DLw *ATX PSU* https://www.youtube.com/watch?v=GjZtZNssroE *Amplifiers* https://www.youtube.com/watch?v=0oWBcTTeMNQ *MOSFETs* https://www.youtube.com/watch?v=LNu00nMBaaQ *Thermal Cameras* https://www.youtube.com/watch?v=v6Ll2v1brT0 *Power Adapters* Part 1: https://www.youtube.com/watch?v=IoSaaK71tGY Part 2: https://www.youtube.com/watch?v=MlDqQpM-VFE All links are affiliated. For All Your PCB needs: free $5 discount coupon https://www.pcbway.com/setinvite.aspx?inviteid=561767 KM601 https://s.click.aliexpress.com/e/_DEqgYD9 https://amzn.to/3PnMLa3 AN8008 https://uk.banggood.com/custlink/vKKyu04EUI https://amzn.to/3zoBhxu VC480C+ https://s.click.aliexpress.com/e/_DdYjx7N https://amzn.to/3ohpjPN MESR-100 ESR METER https://amzn.to/3zoZOCx https://amzn.to/3PDyw0c XC6013L CAPACITOR METER https://s.click.aliexpress.com/e/_Dm18TSb https://uk.banggood.com/custlink/G3GYuggRz2 https://amzn.to/3aVbTG1 https://amzn.to/3yULK20 TM-902C TEMPERATURE METER https://amzn.to/3cv7J8m https://amzn.to/3v5kuwK NEEDLE PROBES https://uk.banggood.com/custlink/DGKYu66YTF https://amzn.to/3Pqod00 https://amzn.to/3aQBHmQ DS1054Z SCOPE https://amzn.to/3IW5NSh FNIRSI-138 PRO SCOPE https://s.click.aliexpress.com/e/_DmcJBO3 DCA55 https://amzn.to/3zlmALm LCR-T4 https://s.click.aliexpress.com/e/_De0eSqf https://uk.banggood.com/custlink/KKKywe0ywZ https://amzn.to/3ITNr4e https://amzn.to/3PFDMk4 Soldering T12 with M8 9501 https://s.click.aliexpress.com/e/_DFhPJDv https://amzn.to/3zn0GaF KSGER T12 https://uk.banggood.com/custlink/vGvYwgBd7g https://amzn.to/3OoaOUM T12 M8 9501 HANDLE https://s.click.aliexpress.com/e/_DlKOU0x T12 KIT https://amzn.to/3cvs1i3 QUICK 861DW https://s.click.aliexpress.com/e/_DCZ5Hkr https://uk.banggood.com/custlink/33vh7eBE1N https://amzn.to/3Prljbf https://amzn.to/3cxrETR PROS'KIT SS-331H https://uk.banggood.com/custlink/Dm3RT46d7M https://amzn.to/3zoKk1q KADA 853B PREHEATER https://amzn.to/3S32H3h ESD-11 TWEEZERS https://s.click.aliexpress.com/e/_DEH0K4F https://amzn.to/3zmCS6L https://amzn.to/3Pl7zyK MICROSCOPE https://s.click.aliexpress.com/e/_DmW0Jun https://uk.banggood.com/custlink/mKGy7e0yww https://amzn.to/3cvujxF https://amzn.to/3v0c3mn EEPROM Programming TL866 II+ https://amzn.to/3aXWchh https://amzn.to/3ckesBK CH341A https://s.click.aliexpress.com/e/_DeRLni7 https://amzn.to/3B8N4kM https://amzn.to/3PHXueX 1.8V ADAPTER https://s.click.aliexpress.com/e/_DciFyrp https://amzn.to/3aS6vU0 https://amzn.to/3PGVp31 Consumables NC-559-ASM FLUX https://s.click.aliexpress.com/e/_DFO2ZhZ https://amzn.to/3B3lGod https://amzn.to/3BnrPvJ DESOLDER BRAID https://s.click.aliexpress.com/e/_DnseW3v https://amzn.to/3ROBHEq https://amzn.to/3RQ9gWM 10 PACK SOLDER WICK (I use SIze 4 SW18045) https://s.click.aliexpress.com/e/_Dk7KBPN Learn Electronics Repair is now on Discord! https://discord.gg/vam6YC8vwU It takes a lot of time and effort to make Youtube videos. If you enjoy my videos or they helped you with your own repairs please consider subscribing to my channel or click LIKE If you would like to help support this channel you could consider sending a paypal donation or subscribing to my patreon page. All monies received will go towards buying more items to repair and make interesting videos, or to improve my video recording equipment and will enable me to spend more time making better videos. If you subscribe to my Patreon you'll get my Whatsapp number and I'll give personal repair support You can send donations via this link https://www.paypal.com/paypalme/youtubeLER. You can subscribe via this link https://www.patreon.com/learnelectronicsrepair Thank you for your support. Richard



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