4-20ma Pwm

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LM324: 1-5V to 4-20mA Voltage to Current Conversion - Amplifiers forum

看到有人发过pwm转4~20ma电路，我也发个我的，已经在产品使用，非常稳定 (amobbs.com 阿莫电子论坛) Loop powered pwm to 4-20ma isolated signal converters input: 10hz-99hz Arduino ma current 20 pwm output 20ma signal uno transistor q1 complement cycle inverts duty software must number so

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Raspberry pi analog output 4-20ma current loop transmitter

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High-accuracy 4-20 ma current-loop transmitter

Current loop to voltage converter (4-20ma to 0-3.3v/ 0-5v/ 0-10vArdupiclab: 4-20 ma current output for arduino uno Converts current loop 4/20ma or 0/20ma to a pwm output signal.중국 4-20ma 변환기에 수동적인 pwm 주파수 신호 – 사다 pwm 신호 에 kr.made-in-china.com.

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实用：pwm转4-20ma电路（智能仪表上的电路） (amobbs 阿莫电子论坛) .

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