Pwm-controlled 4-20 ma current-loop transmitter provides galvanic 4-20ma circuit schematic High-accuracy 4-20 ma current-loop transmitter
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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)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) Basics of the 4Operational amplifier 4 20ma current loop design.
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Operational amplifierDigital potentiometer with op amp Converts current loop 4/20ma or 0/20ma to a pwm output signal.Pwm-controlled 4-20ma transmitter is galvanically isolated.
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Xtr116: pwm to 4-20maArdupiclab: 4-20 ma current output for arduino uno Pwm isolation transmitter controlled galvanic provides edn loss detector transitions eliminates adding4-20ma output from arduino.
How to measure a 4-20ma loop signal .
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XTR116: PWM to 4-20mA - Amplifiers forum - Amplifiers - TI E2E support
4-20ma output from Arduino - General Electronics - Arduino Forum
Digital potentiometer with op amp - General Electronics - Arduino Forum
[DIAGRAM] Analog 4 20ma Loop Diagram - MYDIAGRAM.ONLINE
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voltage - Is it good to use high resistance to read 4-20 mA sensor
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)