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Thread: drive a 4 to 20 amps dc motor

  1. #11
    Senior Member T-1000
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    It will be a good idea to measure the motor currents before you buy the controller. Motors can draw upto 5 times their rated currents at load, during turn off and turn on. Things get very complicated when you have a PWM driving them.

    speed control for anything above 5A will be expensive, if you buy it. things are far cheaper if you DIY, but at the cost of chance of failure.
    .... I didnt do it ! ....

  2. #12

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    Hi,
    Use T-bridges and then u can use solid state relay as well or mosfet like IRFZ44N

    Asimov

  3. #13

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    I tested the MOSFET H-BRIDGE motor driver board that can drive 12 to 50 Volt DC motor up to 30Amps successfully
    I used HIP4082 to drive mosfets and this is the best method. No any transistor/Logic ICs are required.
    It costs just Rs.75/-
    Feel free to contact me for more info

  4. #14
    Super Moderator T-1000 docel's Avatar
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    Quote Originally Posted by vigyanabikshu View Post
    I tested the MOSFET H-BRIDGE motor driver board that can drive 12 to 50 Volt DC motor up to 30Amps successfully
    I used HIP4082 to drive mosfets and this is the best method. No any transistor/Logic ICs are required.
    It costs just Rs.75/-
    Feel free to contact me for more info
    After generating 13 posts in your thread, it would be a gentelman's gesture to share the details in the open Forum instead of soliciting personal contacts. That way, the members who posted replies to you would feel nice for spending their time and appreciate your gratitude.

    Good Luck
    docel
    ^Anything is possible..
    after YOU prove it!!

    http://bangalorerobotics.tripod.com

  5. #15

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    It has taken 1 week hard work to make this success

    Below is the schematic

    MOSFET HBRIDGE.jpg

  6. #16

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    Another more simple low cost dc motor control circuit with speed and direction control found at
    http://www.picbasic.co.uk/forum/show...?t=8567&page=1
    Knowledge is nothing but Experience
    Experience is nothing but Involvement
    www.kerarobot.com

  7. #17

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    It uses one relay and one mosfet only
    "http://www.picbasic.co.uk/forum/attachment.php?attachmentid=2517&d=1208532602"
    Knowledge is nothing but Experience
    Experience is nothing but Involvement
    www.kerarobot.com

  8. #18
    Junior Member Newbie
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    hey there,
    I was looking at your circuit and, was wondering if it was possible to use a single pwm input instead of the pic to control the driver?

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