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300V emitter follower

Discussion in 'Electronic Design' started by Martin Donald, Feb 17, 2006.

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  1. Are there any special design considerations for using a simple
    Darlington emitter follower to drive a resistive load at 300 1AV?

    The signal is a 30Hz (not KHz) sinewave at audio line level.

    Given the low frequency, what would be a bombproof transistor to use
    for the 300V rail?


  2. What 1AV ? How much is that resistive load?
    What sense does it make to drive a darlington with a sinewave at
    audio line level? How much is that anyway? 500mV ?
  3. Fred Bloggs

    Fred Bloggs Guest

    Are there any special design considerations for using a simple
    At those V-I levels, it is worth creating a collector circuit I_V load
    line upon which you superimpose Pmax and SOA limit curves derived from
    the transistor datasheet.
  4. Pooh Bear

    Pooh Bear Guest

    What's an AV ? Do you mean a VA ?
    What's the load resistance/impedance and the signal amplitude ?

  5. Phil Allison

    Phil Allison Guest

    "Martin Donald"

    ** The question as posted is nonsensical.

    Try explaining your need in simple language.

    It is obvious that technical terminology is beyond you.

    .......... Phil
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