Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
A 4-20mA current-loop is commonly used to transmit process control information in industrial applications, as it has good noise immunity and requires no remote power, since the loop current can provide that power.
Described here is a relatively simple transmitter circuit to generate that...
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