microcontroller control power mosfet

Discussion in 'Embedded Systems and Microcontrollers' started by cpleng7, Sep 19, 2010.

  1. cpleng7

    Thread Starter Active Member

    Dec 18, 2008
    120
    0
    can some one tell me how the microcontroller can control the power mosfet as a switching
     
  2. lihle

    Active Member

    Apr 12, 2009
    83
    3
    its simple just Google the staff. what you can do is to set up the pin high that would activate the gate.
     
  3. cpleng7

    Thread Starter Active Member

    Dec 18, 2008
    120
    0
    since the gate of the mosfet is receive the current pulse , how the microncontroller send the current pulse?

    second question is that power mosfet can act as a SPDT switch? how the schematic look like?
     
  4. electrontube

    New Member

    Sep 19, 2010
    3
    0
    just use a transistor ,there is nothing to it at all, any npn u can find, or general purpose.
     
  5. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    You can use a LOGIC LEVEL MOSFET.

    This will accept standard logic levels on the gate. They work quite well with micros.
     
  6. cpleng7

    Thread Starter Active Member

    Dec 18, 2008
    120
    0
    but if using the transistor, the switching speed is lower than the switching speed of power mosfet. how to solve the problem?

    Is that the transistor can works as a SDPT switch
     
  7. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
Loading...