Photoelectric drive circuit
Source: InternetPublisher:王达业 Keywords: Optoelectronics drive circuit high voltage BSP Updated: 2020/11/02
Photoelectric drive circuit , the load in the picture is a strong circuit (2A) high voltage (AC 220 V) device, which can be
controlled by photoelectric conversion, which is safer and more reliable. The bidirectional thyristor is located in the AC high-voltage power supply circuit. As long as the tube
is turned on, 220 V AC high voltage will be added to the load. The control signal drives the light-emitting diode in the optocoupler through ICr, and controls IC2 through the
phototransistor in the optocoupler. The output of IC2 controls the trigger voltage of the thyristor, thereby controlling the load.
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