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PWM and output power with MOS Transistor. 2017-01-25T11:49:36+00:00

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  • Jack
    January 25, 2017 at 11:49 am
    Post count: 0
    #12103 Reply |

    Using the “DROK DC 5-36V 400W Dual Large Power MOS Transistor Driving Module, FET Trigger Switch Board, 0-20KHz PWM Electronic Switch Control, DC Motor Speed Controller”

    If there is no PWM trig connected, should there be an output? With an input of 15VDC, I am getting a 13VDC output, without a PWM. With a PWM, it increases from the 13VDC to match the 3.3V pulses.
    Thanks for the help/education.

    Jack
    January 26, 2017 at 2:41 am
    Post count: 0
    #12117 Reply |

    Problem Solved. After testing the MOSFETS for a short and not finding one, I realized the o-scope via my laptop does not have isolated grounds and was completing the circuit – unsafely, I might add.

    Drok
    Keymaster
    January 26, 2017 at 3:55 am
    Post count: 2971
    #12119 Reply |

    Hello Jack,
    Thank you for writing in.
    We are glad that your problem was solved.
    If there is any question, please feel free to contact us.
    Look forward to serving you again.
    Best regards

    LulaNord
    June 19, 2017 at 5:39 pm
    Post count: 0
    #18742 Reply |

    Hi…I am a new user here. I also had the same problem. Thanks for sharing your problem here. Because of this i got to know the solution for my problem as well.

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