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Can Power Supply Sink Current

Discussion in 'Power Electronics' started by electronicsLearner77, Sep 17, 2017.

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  1. electronicsLearner77

    electronicsLearner77

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    Jul 2, 2015
    I wanted to know this, suppose if i am testing any motor application using DC power source during the development stage, the circuit will convert electrical energy to mechanical energy. But there are cases where reverse current can flow that is current can flow into the DC source. Am I correct? If it is correct then can DC power source can sink current? Should I use only batteries for testing motor applications?
     
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
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    Jan 21, 2010
    Very few power supplies can both sink and source current
     
    dorke likes this.
  3. BobK

    BobK

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    Jan 5, 2010
    Rechargeable batteries can, within limits.

    Bob
     
  4. Irv

    Irv

    112
    30
    Jun 7, 2017
    The motor can act as a generator.
    The question might be: "can I fry my power supply if this happens?"
    If yes, then the second question I would have is "How to prevent this?"
     
  5. BobK

    BobK

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    Jan 5, 2010
    A diode between the power supply and the motor.

    Bob
     
    Electric-T likes this.
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