风压变送器微差压传感器压差rs485负压4-20ma风机压力管道0-5v10v
4-20ma(0-20ma)0-5v直流信号变送器0-±10v正负输出
4-20ma to 0-10v current to voltage converter module dc7-30v
如何使0-10v的电压转换成4-20ma电流
有哪位高手能提供工业上经常用到的0-5v或者0-10v转换为4-20ma的电路
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