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Recent content by labee

  1. labee

    Thermal drift in Darlington connected transistor pair

    Great tips. I was leaning towards using a current mirror myself. Will get back if I need any more help with the feedback stuff. Thanks again
  2. labee

    Thermal drift in Darlington connected transistor pair

    The circuit is a little bit more complicated I'm afraid. It has a drive control, and a biasing scheme with high precision 0.1% resistors. Normally, the drive control signal and the biasing voltage produce the needed current in the collector of the Darlington connected transistor. The control...
  3. labee

    Thermal drift in Darlington connected transistor pair

    I have a power amplifier circuit that has a darlington connected bjt pair. The voltage drop of the transistor goes from 1.5 volts to around 1.2 volts after the circuit has been turned on and is running for a few minutes. I was wondering if there is anyway to make the bias voltage to the...

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