help using the IRS2110 for H-bridge

Discussion in 'The Projects Forum' started by dumle29, Feb 23, 2012.

  1. dumle29

    Thread Starter Member

    Jun 26, 2011
    So im making this H-bridge for a car.

    per channel:
    • 36v
    • 50A
    • 500-600Hz PWM

    So i need to drive it with a high-side driver, and i choose the IRS2110

    they have this schematic in the datasheet:

    however, i dont know how to calculate the appropriate diodes capacitors or resistors.

    im thinking a 10-100Ω resistor wouldn't be a bad idea on the gate.
  2. shortbus

    AAC Fanatic!

    Sep 30, 2009
  3. dumle29

    Thread Starter Member

    Jun 26, 2011
    Would this work?

    the diodes are there to bring the voltage down to not blow the LM7815 (i know its a dirty solution)

    the caps between Vs And Vb are .47µF

    the supply is 37,8v when the batteries are fully charged

    this is what the terminals connect too:
    • x1-1 = Right side of the load
    • x1-2 = left side of the load
    • x1-3 = battery ground
    • x1-4 = 30-37,8v from battery
    • x2-1 = logic 5v
    • X2-2 = logic ground
    • X2-3 = High side left signal
    • x2-4 = High side righ signal
    • x2-5 = Low side left signal
    • x2-6 = Low side right signal
    Last edited: Feb 24, 2012