Forum Name:

Electronics


Topic Name:

What is an optocoupler?



Posted By:

Steve



What is an optocoupler? Last Post By : SUJITH MATHEW
lesllie Total Posts on mepits: 25
Posted On 14-Sep-2015 15:12
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Optocoupler is a component that can transfer electric signals between isolated circuits.


Jithin Total Posts on mepits: 3
Posted On 21-Jan-2016 11:23
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Opto-Isolator


Sanjai Total Posts on mepits: 12
Posted On 26-May-2016 16:52
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It is a passive electronic device which is designed to transfer electrical signals by using light waves in order to provide coupling with electrical isolation between its input and output. The main purpose of an optocoupler is to prevent rapidly changing voltages or high voltages on one side of a circuit from distorting transmissions or damaging components on the other side of the circuit. An optocoupler contains a light source often near an LED which converts electrical input signal into light, a closed optical channel and a photosensor, which detects incoming light and either modulates electric current flowing from an external power supply or generates electric energy directly. The sensor can either be a photoresistor, a silicon-controlled rectifier, a photodiode, a phototransistor or a triac.

 

hope this helps..


SUJITH Total Posts on mepits: 10
Posted On 21-Jun-2016 12:51
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OPTOCOUPLER CAN BE USED TO ISOLATE HIGH VOLTAGE AC FROM LOW VOLTAGE DC CIRCUITS.


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