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I come from an industrial (rather than consumer) background in electronics. There is nothing really interesting or impressive about this power supply. This is
by rmrm 14y ago
I come from an industrial (rather than consumer) background in electronics. There is nothing really interesting or impressive about this power supply. This is how you do it, you'd find similar designs in a wide range of industrial products.
What the real story is, is how cheaply power supply circuits are generally done in consumer electronics. They cut all kinds of corners and are quite amazing and often frightening. I actually find the cheap, hideous designs more impressive in some ways.
- CamperBob2 14y agoThey cut all kinds of corners and are quite amazing and often frightening. I actually find the cheap, hideous designs more impressive in some ways. Indeed. Mad Man Muntz (http://en.wikipedia.org/wiki/Madman_Muntz http://en.wikipedia.org/wiki/Madman_Muntz) is alive and well and living in China.
- mbell 14y agoAs an EE myself I completely agree, this is a textbook SMPS topology used all the time, nothing technically special about it at all. The only interesting take away is that they didn't cut corners as is normally done in consumer gear.
- smackfu 14y agoTeardown of a cheap power supply, from Mike's Electric Stuff: http://www.youtube.com/watch?v=T88ej64aXUM http://www.youtube.com/watch?v=T88ej64aXUM