... TLP570 MOC3022 PS9714 TLP620 MOC3023 PS9817-2 TLP620-2 MOC3041 Optocoupler generally consists of three parts: optical transmission, optical receiver ... isolation of noise and interference suppression of new semiconductor devices. Optocoupler appeared in 1966, developed in the 70s, which transmit electrical ... output, one-way transmission signals and logic circuit connections easily., supply Optocoupler