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how to avoid heating of mosfet

Discussion in 'General Electronics Chat' started by abhay, Jan 5, 2003.

  1. abhay

    abhay New Member

    Joined:
    Jan 2, 2003
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    hey guys,
    pls help me out with this prob,i am working on a ac/dc coil i.e input being AC or DC the coil will exite a relay.the mosfe which i have used is getting heated very much even after using a heat sink,how do i crack this nut.
     
  2. kinjalgp

    kinjalgp Active Member

    Joined:
    Oct 28, 2002
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    Location:
    INDIA/USA
    Your realy must be drawing more current than the MOSFETs capacity. What is the impedance of relay, Vdd voltage and number of MOSFET?
     

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