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PC81711NSZ application field and working principle

A PC81711NSZ opto-isolator is an integrated circuit device that can be used to isolate electrical circuits or boards from each other. Optocouplers offer a high level of electrical insulation by keeping sensitive circuits separate while providing the controlling signal. The PC81711NSZ is a type of opto-isolator that is composed of an LED, phototransistor, and secondary control photodetector. The PC81711NSZ opto-isolator is used in a large variety of industrial, automotive, consumer, and telecommunications applications.

PC81711NSZ Application Field

The PC81711NSZ opto-isolator can be used in applications such as controlling and monitoring of motor drives, machine-tool operation, interfacing of high-level voltage signals, interfacing between digital circuits, logic signals controlling relays, opto-isolated power circuits, sensing of high-powered ions or lasers, signal transmission and isolation of high-voltage control signals, and switch-mode power supplies.

The PC81711NSZ opto-isolator can be used in applications such as controlling and monitoring of motor drives, machine-tool operation, interfacing of high-level voltage signals, interfacing between digital circuits, logic signals controlling relays, opto-isolated power circuits, sensing of high-powered ions or lasers, signal transmission and isolation of high-voltage control signals, and switch-mode power supplies. The PC81711NSZ opto-isolator is able to withstand high EMC environments and is certified to meet safety standards for use in a variety of end-use markets. The opto-isolator is designed for a variety of panel and basic operating temperature ranges including 0 to 60°C and -40 to +105°C.

PC81711NSZ Working Principle

A PC81711NSZ opto-isolator works by using a light emitting diode (LED) to transmit a light signal across an optical gap to a phototransistor. The LED and phototransistor are optically coupled. When the LED voltage is higher than the threshold voltage, it will emit light. The light is directed to the base of the phototransistor, which will allow current to pass from the collector to the emitter. In this manner, the PC81711NSZ opto-isolator is able to control or monitor electrical signals without making direct electrical contact.

The phototransistor has a high sensitivity, making it ideal for use in applications where a small current is to be sensed or monitored from a remote location. The PC81711NSZ opto-isolator also has a high input-output isolation voltage, making it suitable for applications such as electric power control, machinery control, and protective relay control.

Conclusion

The PC81711NSZ opto-isolator is an integrated circuit device that can be used to isolate electrical circuits or boards from each other. It can be used in a variety of applications and is designed to withstand high EMC environments. The opto-isolator works by using a light emitting diode (LED) to transmit a light signal across an optical gap to a phototransistor. The phototransistor has a high sensitivity and the opto-isolator has a high input-output isolation voltage, making it ideal for applications such as electric power control, machinery control, and protective relay control.

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