DC voltage-current conversion circuit
Source: InternetPublisher:containsmachine Keywords: Conversion circuit DC voltage current conversion PLUSMN Updated: 2020/10/12
Shown is a DC voltage-current conversion circuit that can convert a DC voltage of ±10 V into a current of ±1 mA. The input
voltage is added to the input terminal of LM301A, and is amplified and output by the composite transistor. After being amplified by the operational amplifier TL080,
the current signal is output through the composite transistor. During operation, the ±10 V regulated power supply provides a bias current (2 mA) to the input terminal through a current-limiting resistor, and the bias current to the output terminal
is provided by the operational amplifier and composite transistor.
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