The Quest for >2000 Vppss

[kevin gilmore]

q12 is the current limit. so if the amp board shorts, at least the power supply will not explode.

what do you want me to replace the pzta part with?  remember 20+ma

Edited 13 hours ago by kevin gilmore

[simmconn]

I was just pointing out, as how Q12 is connected today, it’s not doing what it is supposed to do. The output should be connected to gate instead.

I remember last time you recommended TTC004B as a replacement for the PZTA42 (different package). We just need something with a flat hfe-Ic curve to, say >100ma at VCE=10V.

[JoaMat]

Seems simmconn reads shematics. Regarding Q12, schematics and gerbers don't match, I think.

[kevin gilmore]

power supply schematic updated. amp board updated.

circlotronpsupdated.pdf

 

kgsshvcarbonv6.1c3cs - CADCAM.ZIP

Edited 12 minutes ago by kevin gilmore