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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)Icstation 4-20ma to 0-5v current to voltage converter isolated i/v Xtr111: 0~3.3v to 4~20maSmart expo.
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Converts current loop 4/20ma or 0/20ma to a pwm output signal.Выход 4-20 ма от arduino 중국 4-20ma 변환기에 수동적인 pwm 주파수 신호 – 사다 pwm 신호 에 kr.made-in-china.comRaspberry pi analog output 4-20ma current loop transmitter.

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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)
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