On Sun, 16 Nov 2003 18:31:03 -0800, R.Measures <r@somis.org> wrote:
>** With a resonant-choke filter, enough bleeder current must flow to
>keep the output V from soaring during RX.
_________________________________________________________
Even with a non-resonant choke filter, you can get some surprisingly
high voltage spikes when the load varies suddenly. I once made a ~150
volt DC supply for test purposes and was easily able to get 300 volt
spikes when suddenly removing a resistive load. Bleeders will help to
alleviate this condition, as will having a large output C, but careful
evaluation is needed before putting such a supply into operation.
--
Bill, W6WRT
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