Need help in Proteus ISIS Simulation

Discussion in 'Electronics Resources' started by EED16, Jun 17, 2016.

  1. EED16

    Thread Starter New Member

    Jun 17, 2016
    3
    0
    Hello,
    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.

    [​IMG]
     
  2. dannyf

    Well-Known Member

    Sep 13, 2015
    1,836
    367
    Give it a ground.
     
  3. EED16

    Thread Starter New Member

    Jun 17, 2016
    3
    0
    Ok, got it, Thanks
     
  4. xainnasir

    New Member

    Nov 8, 2012
    26
    2
    Yeah give it a ground because the second circuit after h bridge is unable to compare the voltage level. When the Ground will be common, they will act at same voltage level.
     
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