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  1. J

    Modulating Ic on a BJT?

    thanks for the replies. The current source + resistors on the right side was just a poor attempt to model the photovoltaic module. It's a 285W module, with the I-V curve that I've attached. The idea is to be able to use a PWM ramp at the Op Amp's Vin and being able to regulate a current flow...
  2. J

    Modulating Ic on a BJT?

    Hi, I am working in a project with a circuit that a college gave me, but he is not with me anymore, so I am trying to figure this out with no luck. The idea is to be able to modulate the current in Ic, using the voltage source (ultimately, the Vs will actually be the pwm output of a...
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