OPI126

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OPI126 optoisolators contain a infrared LED and a complementary NPN phototransistor, which provides electrical isolation. The products are widely used for a variety of applications, especially for computer and line drivers, ambient light sensors, industrial automation, system monitoring, power supplies, motion controllers, and many others. This article will explain the application field and working principle of OPI126.

Application Field

The OPI126 can be used as a computer or line driver for many applications. By controlling the amount of current that flows through the infrared LED, the output voltage can be easily adjusted. This makes it an ideal solution for applications such as driving multiplexed displays, graphics cards, or providing power for devices such as printers and scanners. Additionally, the OPI126 can be used as an ambient light sensor, allowing users to control lighting in various environments for energy efficiency or improved safety.

In addition to computer and line drivers, the OPI126 can also be used as an industrial automation component. The optoisolator can be used to detect levels of external voltage, preventing excessive load on the controller. Similarly, the OPI126 can be used to monitor the functionality of industrial machines, detecting low or high temperatures, pressure fluctuations, and other changes that can potentially damage the machines.

The OPI126 can also be integrated with systems such as power supplies and motion controllers. By controlling the amount of current that is let through the infrared LED, the output voltage can be adjusted to meet the requirements of the system. This makes the optoisolator a great solution for creating a safe and efficient system.

Working Principle

The OPI126 is an opto-isolator, which is an optoelectrical device that sends electrical signals through a transparent medium. In the case of the OPI126, the device consists of an infrared LED, which is connected to a power source, and a complementary NPN phototransistor, which is connected to the load. The LED emits infrared light when it is excited by the power source. This light is intercepted by the phototransistor, which then produces an electrical signal. This signal can be used to control the power output of the load, allowing it to be adjusted to meet the requirements of the system.

In addition to the basic working principle, the OPI126 has added features that further enhance its capabilities. For example, the optoisolator features a built-in current-limiting circuit, which prevents excessive current from passing through the infrared LED. The device also includes a built-in temperature monitor, which allows the user to monitor the device’s thermal conditions. This feature is especially useful when the OPI126 is being used as an ambient light sensor, as the device can detect changes in temperature to better regulate the amount of light being sent out.

The OPI126 is a versatile optoisolator with a wide range of applications. Its reliable operation and added features make it a great choice for industrial automation, motion controllers, power supplies, and many other applications.

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