Motor control using Hybrid design

Discussion in 'The Projects Forum' started by amulya, Apr 1, 2008.

  1. amulya

    Thread Starter New Member

    Apr 1, 2008
    I am trying to control the DC motor by using Half Hybrid design.
    I am using PIC 16F877A(PWM 2KHz), Motor Driver IR2110 and MOSFET IRL3713 as switching device.
    PWM is given only to the Upper Mosfet , Lower Mosfet is using as a freewheeling diode.
    The problem is :-
    The circuit is working fine without the load.
    If i connect a small Motor (say 3V)the circuit is working fine for few minutes, then suddenly not getting output from controlller and Motor driver.
    If i switch on the power after sometime the circuit is working and the same problem occurring.
    If i connect a somewhat big motor(12V)and supplying currrent below 2A, its damaging the driver IC with in a short time.

    please anyone help me.

  2. beenthere

    Retired Moderator

    Apr 20, 2004
    An accurate schematic would be very helpful to us in order to understand the circuit.