Re: Power Supply Design

You can use all kinds of fancy current limiters. But a very simple one
is to build a half-wave voltage doubler, but make the first capacitor
much smaller than the second one. On each cycle the charge of the
first capacitor will be pushed into the second one. Very simple and
basically foolproof.

-----) |------------>|------------------> out
| |
| |
_ _
A _
| |
--------------------------------------------

I first saw this trick on an ancient photoflash unit-- a 0.5uF first
capacitor and a 20uF second capacitor. At 2KV.

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