±200mA current pump circuit
Source: InternetPublisher:吃掉星星 Keywords: Current pump circuit Updated: 2024/09/10
As shown in the figure, it is a ±200mA current pump circuit. R1 and R2 are low temperature coefficient resistors with a power dissipation of 0.32W, R8, R10, and R11 are 10-turn precision potentiometers, and R6 and R7 are low temperature coefficient resistors. A1 to A6 are 1/4 LM324 (power supply is ±15V). T1 is IR9513, T2 is IR513, and T3 is IRFF9113 (MOS tubes with the same power can also be selected).
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