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question about cuttoff and saturation regions

Discussion in 'General Electronics Discussion' started by the_way, Mar 12, 2010.

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  1. the_way


    Mar 12, 2010
    How to can i know (measure) if the transistors are operating in saturation or cutoff region.?
  2. the_way


    Mar 12, 2010
    for example in this circuit
  3. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    Hmmm, no circuit.

    If these are bipolar transistors, then the simple way is as follows:

    saturation: Vce is very close to the specified Vce(sat) for the device.

    cutoff: Vce is a large value (probably = VCC) Typically Vbe < 0.6V

    That's a little simplistic, but it's a start.
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