Precision Current Sink

This a a simple circuit for precision current sink. This circuit uses two kinds of transistor, 2N2219 bipolar transistor and 2N3069 JFET because both of them have inherently high output impedance. Here is the circuit : To provide feedback to the LM101 op amp, this circuit uses R1 as a current sensing resistor. The true current sink nature of this […]

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