[Amps] idea for discharging caps

[John T. M. Lyles]

A nice idea for discharging power supply capacitors appears in EDN 
magazine, March 7, page 121-2, by Stephen Woodward of Univ. of NC. He 
uses a double pole double thow power switch on the primary of the 
power transformer. Then when it is switched off the AC mains, the 
switch connects to the output across the capacitor through an 
appropiate resistor. In this mananer, the caps are discharged through 
the resistor and the primary winding, and the bleeder is made smaller 
or nonexistant. For HV, of course, this idea might need a 'few' 
modifications, such as having a rugged HV power switch or contactor, 
and having bleeders as a backup for safety anyhow.
K5PRO
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