H11A617A300

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Optoisolators transfer electrical signals between two isolated circuits by using light. The H11A617A300 optoisolator is a transistor-based photovoltaic output optoisolator which provides isolation between the control circuit and the load circuit. This brief guide provides an overview of the application field and working principle of this optoisolator.

H11A617A300 Application Field

The H11A617A300 is designed for use in an isolated power supply and industrial communication interface circuits. It is ideal for supplying power to the loads powered by only one or two batteries without the need for a more complex circuit. The optoisolator is also suitable for applications that require the isolation of digital signals, such as digital control systems. Additionally, the device can also be used as a logic isolation device.

H11A617A300 Working Principle

The H11A617A300 optoisolator consists of an infrared-emitting LED and a reverse-biased photovoltaic output transistor. The light emitted from the LED is received by the photovoltaic transistor, which converts the light energy into electric current. The current is then applied to the load circuit, providing the necessary power isolation. The current generated by the photovoltaic output transistor can be controlled by adjusting the voltage across the LED, allowing for precision control of the load current.

The optoisolator works in the following way: the control circuit provides electrical power to the LED, which then emits light. When the light reaches the photovoltaic output transistor, it generates a current that is applied to the load circuit. The current is controlled by adjusting the voltage across the LED, thus controlling the amount of power delivered to the load. This allows for precise control of the load current and allows for the isolation of the control and the load circuits.

Conclusion

The H11A617A300 optoisolator is a transistor-based photovoltaic output optoisolator which provides isolation between the control and the load circuit. It is ideal for providing power to the loads powered by only one or two batteries without the need for a more complex circuit, as well as for applications that require the isolation of digital signals. The action of the optoisolator is based on the conversion of light energy into electric current, which allows for precise control of the load current and provides the necessary isolation.

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