-=> William Kitchen said to Roy J. Tellason
 -=> about "POWER SUPPLY" on 10-26-03  19:48.....

 MR>> The TL494 is hard to kill.
 
 RJT> What is that chip,  anyway?  Something application-specific?

 WK> It's a PWM controller chip. It's an off-the-shelf TI part, though not
 WK> overly  common. Most larger part suppliers will have it.

IIRC it's been around for at least 15 years, maybe 20, and used
in almost every chopper power supply for all that time.

From Greg Mayman, in beautiful Adelaide, South Australia
   "Queen City of The South"    34:55 S  138:36 E

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