CNY74-2H

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Optoisolators, also known as optocouplers, opto-isolators, or optical couplers, are electronic devices that use light waves to provide electrical isolation between two circuits. They are used to prevent noise or interference that can be created by one circuit interfering with another. CNY74-2H is a type of optoisolators comprised of a transistor photovoltaic (PV) output. This article will discuss the application fields as well as the working principle of CNY74-2H.

Application Field of CNY74-2H

CNY74-2H is designed to isolate voltages from 1.5 volts to 5 volts. This makes it suitable for use in a variety of applications, such as digital logic, data communication, automotive, home audio and video, office equipment, surveillance systems, touchscreens, and motion control systems. In particular, CNY74-2H is used for applications where load currents are small enough that a transistor output cannot provide enough current. In these cases, the CNY74-2H provides the necessary isolation and enough current to drive the load.

Working Principle of CNY74-2H

The working principle of the CNY74-2H is based on the photovoltaic effect. The device consists of an LED placed in series with a photodiode on each side. The LED emits light when a voltage is applied across the leads and the photodiodes detect the light. The resulting current is then passed to the load. The photodiodes also provide electrical isolation between the two circuits, allowing the load and power supply to remain electrically isolated from one another. This prevents noise, interference, or signal distortion from affecting the operation of the device.

The CNY74-2H also has a built-in voltage regulator, which prevents the input voltage fluctuating too much, which could lead to unstable operation of the device. This ensures the device operates at a consistent and reliable level, without any unexpected changes.

Conclusion

CNY74-2H is a type of optoisolator comprised of a transistor photovoltaic output. Its application field includes digital logic, data communication, automotive, home audio and video, office equipment, surveillance systems, touchscreens, and motion control systems. Its working principle is based on the photovoltaic effect, where an LED and photodiodes allow for an electrical current to be passed from one circuit to the other, while providing electrical isolation to prevent any noise, interference, or signal distortion. Its built-in voltage regulator prevents unexpected changes in the operation of the device, allowing it to operate reliably.

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