可编程电流-电压转换器通过双边开关,选择电阻值为16Ω。IC1 741为运算放大器(或类似);IC2 CD4066为四路双向开关;C1为0.1μF电容器;R1为10kΩ 1/4W 5%电阻;R2为4.7kΩ 1/4-W 5%电阻;R3为2.2kΩ 1/4W 5%电阻;R4为1.2kΩ 1/4W 5%电阻;R5为100Ω 1/4 5%电阻。 : |
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