At 10:19 PM 8/15/2009, you wrote:
>Since I have 200V caps laying around from scrapped AT computer power
>supplies , I thought of stacking 5 of them and balancing the voltage
>with high value resistors and 200V zeners.  Is there a better way ?

You'd need 25 capacitors (5 in parallel = 1000uF/200V) and then 5 of
those sets in series to get 200uF/1kV. Resistors are the easiest way.
If you have 5 200V zeners in series you'll get a lot of current flow
if the voltage exceeds 1kV by a bit, whereas the caps have some ability
to handle surges.

Don't kill or maim (eg. blind) yourself, those voltages and energy storage
amounts (100J) should be taken very, very seriously as they are potentially
(so to speak) lethal.

>Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com



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