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The basic function of a switch mode power supply explained with some experiments on a switch mode psu board.
To contribute: https://paypal.me/sreetips?locale.x=en_US Computer scrap has an undeterminable amount of gold. This enables sellers to charge, and get, from two to ten times what the scrap is worth in terms of the amount of gold that it contains. This video shows that it's not easy to get the gold and that the amount of gold yielded is very low. Now you have a place to look BEFORE you spend your hard-earned money on this kind of over-priced scrap.
Ever wonder what voltage really is?
One of those common power bricks failed at work this week. So clearly I had to grab it out of the scrap and drag it home to see what's going on inside. Also in this episode: stickers! And, of course, beer. ----- My tip jar: https://www.patreon.com/pileofstuff ----- This isn't the only way to do it. It's probably not the best way to do it. But it's how I do it.
Service Manual: http://eevblog.com/files/SPS9400_ServiceManual.pdf What's inside the Manson SPS9400 40A 3V to 15V Switchmode Power Supply? Also known as the Jaycar Powertech MP3090 and BK Precision 1692
LAMBDA VA 2239 Power Supply Repairs by Dynamics Circuit (S) Pte. Ltd.
The LAMBDA VA-2239 are high power switch mode AC to DC power supplies for applications where high efficiency, precise regulation and a high degree of packing density and light weight are required.
This VA series of high frequency switching power supplies is designed to operate as a source of constant current/constant voltage with automatic crossover.
Dynamics Circuit (S) Pte. Ltd. has successfully repaired 10,000 over test instruments, power supply, HMI panels, PCB boards, control panels and many more.
With ISO 9001:2015 accreditations and Authorised for reputable companies like Megger, AVO, Biddle, B&K Precision, Seaward, ISA test, sebaKMT, Vanguard Instruments makes Dynamics Circuit (S) Pte. Ltd. the world leader in industrial electronics repair.
Talk to us, the Experts!
Dynamics Circuit (S) Pte. Ltd.
15 Yishun Industrial Street 1, #09-28 Win 5,
Contact: (+65) 6754 7024