>Need Your Advise.
>
>I have built a 4kV-dc power supply capable of 1.0A CCS. I purchased the
>best parts that I could afford... 50A-220V auto-transformer, Peter Dahl,
>K2AW's HV14-1, oil cap & etc. What I didn't give much thought to, until
>now, is the bleeder resistor.
>
>What are you using and why?
>
>I have four(4) 50K @ 100W vitreous enamel power resistors on hand. That
>would give me a 20mA load @ 80 watts. Is this too light a load. I've
>always used the "rule of thumb" for a 50mA load. Does the bleeder really
>help in dynamic regulation?
** With a resonant-choke filter, enough bleeder current must flow to
keep the output V from soaring during RX. With a capacitor filter,
bleeder current does not improve V-regulation, however, the bleeder
current should discharge the filter C in a reasonable time. I am
currently building an amplifier HV-PS filter with seried 1120uF/450VDC
capacitors. I will use one 100k-ohm/3w bleeder per 450V capacitor. This
should provide enough bleed-down time to reasonably discharge one bottle
of Beck's or St. Pauli Girl.
>
cheers, Steve
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