Hello,
I post a question about flyback and voltage multiplier yesterday. Some experts asked for sch. I don't know how to modify the original thread, and setup a new thread with sch here.
I am build a flyback typed DC-DC to produce 1500VDC from 15VDC. The output current consumption is very low, <0.1mA. The DC-DC switching controller comes from TI, it is just an oscillator+MOSFET driver, the feedback is a resistor divider, switching freq is 300KHz. To reduce the stress on the MOSFET and easierf for the transformer design, I would like to produce 500V first, then use 3-stage voltage multiplier to get 1500V. Right now, I can get 500V properly with PSPICE, but the whole circuit failed after attaching the multiplier which is consist of fast diodes and capacitor.
Thanks for any advice!
I post a question about flyback and voltage multiplier yesterday. Some experts asked for sch. I don't know how to modify the original thread, and setup a new thread with sch here.
I am build a flyback typed DC-DC to produce 1500VDC from 15VDC. The output current consumption is very low, <0.1mA. The DC-DC switching controller comes from TI, it is just an oscillator+MOSFET driver, the feedback is a resistor divider, switching freq is 300KHz. To reduce the stress on the MOSFET and easierf for the transformer design, I would like to produce 500V first, then use 3-stage voltage multiplier to get 1500V. Right now, I can get 500V properly with PSPICE, but the whole circuit failed after attaching the multiplier which is consist of fast diodes and capacitor.
Thanks for any advice!