what is the difference between these two heatsinks?

Discussion in 'The Projects Forum' started by vikru_2008, Apr 1, 2012.

  1. vikru_2008

    Thread Starter New Member

    Mar 10, 2012
    10
    0
    BA5406 power amplifier requires a heat sink bigger than that required by the cpu processor ..why is this so ? its a question i was asked in my viva exam .
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,154
    3,061
    The simple answer is, it needs to dissipate more heat and/or needs to operate at a lower temp, so that a larger sink is needed for a given amount of heat to move.
     
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  3. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
    Hello,

    Also the CPU cooler has a fan for forced air cooling, this makes the heatsink smaller.

    Bertus
     
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