first post from an avid forum reader:
This is the schematic for a simple Charge Pump circuit from circuitdigest.com* (great website). I am trying to build a charge pump with 12V VCC and 5V PWM, effectively giving ~17V at the output. I understand the working principle discussed on the website, though when building a "single stage" charge pump as shown above, does the PWM input need to be tied to GND? I get what all other components do.
My question is, does anything change when I disconnect PWN from GND? (doesn't otherwise get the pulses discharged directly into ground?) Im my design the pulse generator with be tied to the same ground as the OUTPUT GND.
Thank you very much!