The Main Advantages of the Optocoupler
Optical Coupler (opticalcoupler, and English abbreviation is OC) is also known as optical isolator or optocoupler, and it is shortly called the optical coupler. It is a device that transmits electrical signals through light. Usually, the luminescent device (infrared light emitting diode LED) and the photoreceptor (photosensitive semiconductor tube) are encapsulated in the same shell. When the input end adds electric signal, the light emitting diode emits light. After receiving light, the phototransistor generates photocurrent, which flows out from the output end, thus realizing the "electro-opto-electric" conversion. The optoelectronic coupler, which couples the input signal to the output signal through the medium of light, is widely used in digital circuits because of its small size, long life, no contacting point, strong anti-interference ability, insulation between output and input, and unidirectional transmission of signals. The main advantages of optocoupl...