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  1. #1
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    Trying to simulate a current supply using Pspice

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    It's weird.
    1) Only 46.44nA running through a branch. That's too small to be a current supply
    2) I had to insert a resistor R14 100ohm else the simulation won't converged.
    3)Why point B dropped to 68.15mV? Transistor M4 sustain a huge VDS voltage across, almost 3.2V, that's not safe, right?

    How can i increase the current so it can a meaningful current supply?

    •   Alt19th June 2017, 03:23

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  2. #2
    Advanced Member level 5
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    Re: Trying to simulate a current supply using Pspice

    Because the circuit does not start.You should add a starting transistor to wake up the circuit.



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