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What is optocoupler and how to check it

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An optocoupler (also called optoisolator) is a semiconductor device that allows an electrical signal to be transmitted between two isolated circuits. Two parts are used in an optocoupler: an LED that emits infrared light and a photosensitive device that detects light from the LED. For Training Purpose Call SK Computer Technologies Mb: 9444180072 / 9841925321 Website: Email: skcom2001@ map location:

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