Vasile Surducan wrote:
>
> I've done one, some time ago, see
> http://www.geocities.com/vsurducan/c520.htm
> at the bottom of the page, up to 150mA, but I don't recommend such power
> supplies for production devices ( maybe on 120V mains, only )
> Note that in my design, the supply don't like to remain without load...
> Vasile


Hi Vasile! Great web page! But that picture power.gif
scares me a bit! The only thing limiting the voltage
across C5 is the current drawn by the load!!
Maybe you could put a 8v 1w or larger zener diode
across it. Would improve safety a lot!
:o)
-Roman

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