|Created||March 26, 2012|
|Last modified||March 26, 2012|
|Tags||2n2907a ccs constant-current-source diy milliamp pnp tdcs transistor|
Constant Current Source with PNP transistor (2N2907A). Current is adjustable between 0 and 4 mA via a potentiometer. The load in the schematic is R4.
Any suggestions for improvement welcome. Particularly how to add a voltage cut off before R4 so that the circuit breaks if voltage exceeds 4 V. Please also give the specific component model to do this.
March 26, 2012
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