Opto-Coupler.... An optocoupler, also called opto-isolator, is an electronic component that transfers an electrical signal or voltage from one part of a circuit to another, or from one circuit to another, while electrically isolating the two circuits from each other. It consists of an infrared emitting LED chip that is optically in-line with a light-sensitive silicon semiconductor chip, all enclosed in the same package. The silicon chip could be in the form of a photo diode, photo transistor, photo Darlington, or photo SCR. The optocoupler application or function in the circuit is to: 1).Monitor high voltage. 2). Output voltage sampling for regulation. 3). System control micro for power on/off. 4). Ground isolation.
Posted on: Sat, 15 Mar 2014 17:22:17 +0000
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