CNY173

Optoisolators are electronic devices used to isolate signals between two circuits, usually acting as a bridge between different levels of signals. CNY173 is a special kind of optoisolators, belonging to Transistor, Photovoltaic Output Windows. This type of optoisolar utilizes a solar cell on the base of a Phototransistor in order to transmit signals from one circuit to another without a physical connection.

Application Field

Transistor photovoltaic output windows, such as CNY 173, are used mainly in applications that require a high degree of accuracy or dependability. As a result, this type of optoisolator is ideal for applications that require a high level of isolation voltage to protect sensitive circuits from faulty operation or static surge. Applications of CNY173 optoisolator can be found in communication, medical, consumer, and automotive industries.

The CNY173 series of optoisolator can be applied to a wide range of products that require a high degree of voltage isolation, like in data transmission systems, signal processing, LED or LCD displays, lighting controls, industrial automation, etc.

Working Principle

The CNY173 optoisolator works by utilizing a light-sensitive photo-transistor, which triggers the electrical signal when light falls on it, allowing current to flow between two circuits that are otherwise electrically isolated. The photo-transistor in this optoisolator can be triggered in both directions, allowing it to either turn the circuit on or turn it off.

The photocell is situated on the base of the photo-transistor. Once light falls on this photocell, electrons are released creating an electrical current, activating the photo-transistor. This electrical current then passes through the base and is then transferred to the output, allowing the current to flow from one circuit to the other without a physical connection.

The optoisolator can be triggered by a variety of light sources, including light sources generated by LEDs, fluorescent lamps, lasers, and even sunlight. However, due to the varying nature of these light sources, care must be taken to design a circuit that is not affected by them.

Conclusion

The CNY173 series of optoisolators provide an excellent way to bridge between different levels of signals, with a high degree of accuracy and reliability. This type of optoisolator is perfect for applications such as data transmission systems, signal processing, LED or LCD displays, lighting controls, and industrial automation, providing a high degree of isolation voltage to protect sensitive circuits from faulty operation or static surge.