Need Help with Proteus ISIS Simulation

Discussion in 'The Projects Forum' started by EED16, Jun 17, 2016.

  1. EED16

    Thread Starter New Member

    Jun 17, 2016
    I am designing an automatic voltage regulator (AVR) for a generator. Attached is the ISIS file and simulation of the circuit.

    Problem: The full wave bridge rectifier works fine independently but gives zero output when connected to rest of circuit. The output of bridge should be 26V DC at capacitor C1. The output of AVR should be 70-80V DC accross diode D1.

    Can you tell what is the problem in the bjt and mosfet circuit which is causing the bridge output go to zero.

    Moreover, I couldn't find the ISIS model for bjt D882 so an alternative is used.