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reason for using buz71

Discussion in 'Electronic Design' started by booth multiplier, Nov 4, 2004.

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  1. I sawe a circuit where an always on BUZ71 is used in front of a L200c
    regulator. The output of BUZ71 is connected to the input of L200c.I
    could not figure out why this was done? If it is current, the L200c
    can only supply 2A max.Or is it noise?
  2. Yzordderex

    Yzordderex Guest

    Back in mid 80's I used a buz71 in a flyback smps. I also used a
    buz71 in front of the flyback in order to limit the voltage to 600vdc.
    Supply was in a 480v ac inverter. That is only reason I know of
    using a fet in front of a ps controller.

    What is a L200c?

  3. Mark Zenier

    Mark Zenier Guest

    It's like a LM317 with an adjustable current limit. 5 pin TO-200.
    Only about 12 watt power dissipation. From ST.

    Mark Zenier Washington State resident
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