charge pump

  1. T

    how to calculate the capacitance of of cross-coupled voltage doubler

    Hi everyone, as you see on the circuit, I would like to calculate the Cout and C1 and C2 for a given Vout and Iout. my first simple trial is that: Q=Cout*Vout Iout=Q*Freq --> Q=Iout/Freq=Cout*Vout --> Cout=Iout/(Vout*Freq) alos I took C1=C2=Cout I tried this on simple voltage doubler made by...
  2. Nepi7

    TC7660 (charge pump) damage issue

    Hello, I designed a PCB with 3pcs TC7660 charge pump ICs. They are going to be connected paralely to reduce output resistance. Each of them can be disconnected at the output side via jumper. I have a problem to make them working even when they are separated from another components. It seems like...
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