PS9317L-AX

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Optoisolators - Logic Output

Optoisolators are electronic components which were specifically designed to provide electrical isolation between two circuits. They can be used for preventing short circuits, protection against overvoltage, filtering, and buffering electrical signals across a physical gap. PS9317L-AX optoisolaters are an example of logic output optoisolaters, which can pass digital signals including logic-level voltages between circuits, while maintaining full electrical isolation.

Application Field

Optoisolators are generally used in cases where voltage or current of an input channel needs to be separated from the output, typically in industrial applications. For example, in industrial control systems and monitoring systems which contain a controller and multiple field sensors, optoisolators can be used to separate the two circuits and ensure the controller and the sensors operate independently from each other. In the case of PS9317L-AX optoisolators, because of their digital logic output feature, they are most suitable for applications which require voltage difference between two circuits, such as logic level switching and controlling, signal conditioning and transforming, and for providing isolation and protection.

Working Principle

PS9317L-AX optoisolators use LED (Light Emitting Diode) and phototransistor to achieve electrical isolation between two circuits. When a voltage is applied to the LED in the optoisolator\'s input channel, it will emit light, which will be detected by the phototransistor in the optoisolator\'s output channel. The phototransistor will then send an electrical trigger signal to the output channel. The voltage or current of the two circuits will be isolated from each other by the electrical gap between them. This working principle is quite simple but provides a high level of electrical isolation which is suitable for many industrial applications.

Conclusion

PS9317L-AX optoisolators are logic output optoisolators which are specifically designed for applications which require voltage difference between two circuits. They use LED and phototransistor to achieve electrical isolation between two circuits, and are suitable for a variety of applications including logic level switching and controlling, signal conditioning and transforming, and for providing isolation and protection. This makes them a good choice for both industrial and consumer applications.

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