HCPL-3120, IGBT driver circuit

Discussion in 'The Projects Forum' started by nup, Sep 21, 2012.

  1. nup

    Thread Starter New Member

    Sep 10, 2012
    I have designed a driver circuit using HCPL-3120.
    i think i am getting the output pulses but i am not able to vary the voltage and the pulse width of the output pulses.
    i am attaching the circuit dig., output voltage and input voltage...
    if anyone has any idea please reply....
  2. shortbus

    AAC Fanatic!

    Sep 30, 2009
    Not sure what your asking? The component is a glorified switch, it will not vary voltage and pulse width. The voltage out will always be the same as what is put into it, on pin #8. The pulse width has to be varied by the square wave signal put into it, on pin #2.