Hi
I have built a 0 to 300V(dc) adjustable power supply circuit based on the design I found after googling and stumbling upon this link. { http://www.oocities.org/tjacodesign/300vsup/300vsup.html }
I managed to get the circuit working but I have a problem with controlling the current as the load effect of this power supply is not very well regulated. And the max current I can get from this is only 100mA.
My question is how to increase the output current so that I can have a stable regulated output at different loading. (Preferably, up to 500mA or even up to 1A at 300V). Can I use any power amp to increase the current? If so, any part number recommendation?
Thank you very much.
Regards