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PS9814-1-A Application Field and Working Principle

Introduction

PS9814-1-A is a type of optocoupler and optoisolator. It is a high power convertible direct current/alternating current (D/AC) optocoupler and optoisolator. PS9814-1-A has been widely used to provide optical isolation between digital and analog circuits. This device also can be used as a D/AC converter, power line transmitting optocoupler, logic signal isolator, signal level adjustment device, current loop monitoring isolator and AC power switching controller, etc. It is suitable for various instruments and meters, motor drives, telecoms DC/AC power, converters, telecommunications, alert and alarms, UPS systems and etc.

Application Field

The PS9814-1-A application field includes motor drives, power, meters and instruments, AC/DC power conversion, automation equipment, process control, alarm systems, telecoms, UPS systems and aviation control, etc. It is extensively used in telecommunication, control of motors and industrial automation industry.

The PS9814-1-A optocoupler and optoisolator can be used as a power line transmittal device for AC or DC power, and can also be used in DC regulating circuits, instrument level adjustment, current loop monitoring, and AC power switch control. It is a must-have component in industrial process control systems.

Working Principle

Optocoupler and optoisolator types of PS9814-1-A work by sending light signals from the input side to the output side. It consists of an input side semiconductor LED and an output side photodiode. The voltage sent to the LED causes electrons to be released from it. The photons released from the LED light up the photodiode on the output side and cause a current to flow through it. The output of this device is high voltage induced electric current.

The input side LED of this device has a well-designed horn shape to ensure that the output side photodiode can absorb the LED light as much as possible. This design makes the LED photodiode distance adjustable. This device also has two kinds of working modes which can be selected by users: AC or DC mode. When in DC mode, the photodiode will detect the signal only when the voltage is above the given value. When in AC mode, the photodiode will still detect the signal even when the voltage is below the given value.

Conclusion

The PS9814-1-A optocoupler and optoisolator have been widely used in the industrial automation industry. Its wider range of application and adjustable input LED photodiode distance make it suitable for different application needs. This device provides high voltage induced electric current output for digital and analog circuits with optical isolation. The two selectable work modes (AC or DC mode) makes it an optimal solution for motor drives, power, meters and instruments, AC/DC power conversion, automation equipment, telecoms, alarm systems, and aviation control.

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