The constant current source of computing amplifier and Darlington transistor

Published:2011/7/21 0:56:00 Author:Borg | Keyword: computing amplifier, Darlington transistor | From:SeekIC

As the circuit is fixed with the Darlington tube BSY86, so the output current is high. The max output current value is limited by the resistor of R=150Ω, the output current is regulated by the potentiometer Rp1, and the current is irrelevant to the loading resistor RL but remains as a constant. In the figure, the potentiometer Rp1 is 10kΩ, the current can be regulated in the range of 5μA~40mA.



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