I've designed this Widlar current source to deliver 5mA of current. I ran it in pspice, and did a sweep of load resistors from 1 to 2.7kΩ. The current source regulates relatively well from 1 to 900Ω. Two questions; is the design done okay and how do I calculate the range of load resistance for which the design will work? When I breadboard the circuit I will be using a CA3046 transistor array.
Thanks
Thanks
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