[sdiy] OT- Battery powered HV supply?

[anthony]

From: "Toby Paddock" <tpaddock at seanet.com>




>
> I finished a little blinky neon bulb project and I found the current draw 
> is
> lower than I expected. 20uA at 300V. So now I'm wondering about a low 
> current
> battery powered supply.
>
> Any favorite extremely low current supplies? I don't care about requlation 
> or
> ripple. Would be nice if I could hang this up without wires and have it 
> run
> for a year. I guess I could use 34 9V batteries.


Plug them all into each other. That looks cool.

Really it's easy to make a battery powered HV supply using CMOS gates as 
oscialltors and then running the output through a diode/capacitor voltage 
multiplier. Just pick a multiplier that'll give you the volts you need.

I don't have a link off-hand, but I could draw up a schematic maybe...

Getting it to be low current might be tricky. This technique is easiest for 
voltages around 100...


> Thanks,
> Toby
>