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
    1
    0
    Hi,
    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.

    regards
    amulya
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    An accurate schematic would be very helpful to us in order to understand the circuit.
     
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