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Complementary amplifier Differential Measurements for duty cycle

Discussion in 'General Electronics Discussion' started by Davewalker5, Sep 20, 2014.

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  1. Davewalker5


    Sep 20, 2014
    Using an O-scope to measure Differential Measurements on Two channels for Complementary amplifiers.

    O-scope channel#1 is on the Positive cycle of the complementary amplifiers output
    O-scope Channel#2 is on the Negative cycle of the complementary amplifier output

    The input signal is not a sinewave, it's a square waveform

    When measuring the On time and off time of the complementary pairs amplifiers output using square waveform, the Oscope is Ch1 - Ch2 differential measurement.

    This will give the Duty Cycle?
  2. Davewalker5


    Sep 20, 2014
    The Transistors used for the amplifier is 2N6295 and 2N6297

    On the datasheets there is a parallel Diode

    what is this diode for? the diode is reversed compared to the Emitter to base diode in the transistor , why is that

    To balance the swing?
    To Clamp the voltage and limit the current?
    To Stabilize the output?
    To Protect from reverse polarity or a short circuit?
  3. Arouse1973

    Arouse1973 Adam

    Dec 18, 2013
    Circuit diagram would be good
  4. Davewalker5


    Sep 20, 2014
    Here is the power transistors diode schematic

    Attached Files:

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