Im curious about optocoupler.
What is optocoupler,why and how it is used in electronic circuits ?
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Sign up to join this communityIm curious about optocoupler.
What is optocoupler,why and how it is used in electronic circuits ?
an optocoupler is a device used when you want to electrically isolate a circuit from another circuit that you want to send an electric signal
when you turn on the led it sends photons to the phototransistor, these phototransistor which is like a normal transistor but its "base current" is the light emitted by the led, in this way you can use it as an isolated switch between two circuits
using an optocoupler to control a 12v load with a 3v3 signal
What is an optocoupler?
It's a device that couples an electronic signal from an input to an output optically. In practice, that means it has an LED for an input, a photodiode or phototransistor for a detector, and possibly some logic or other devices conditioning the output.
How is it used in electronic circuits?
It's used when you need to communicate between two circuits while maintaining electrical isolation, either as a safety isolation or as a designer convenience.