Infrared sensing automatic door control circuit diagram with KC778B

The circuit is depicted in the diagram. It is a control circuit that consists of the infrared-specific integrated circuit KC778B, which serves as the central component. Surrounding it are a pyroelectric infrared sensor head (PIR), a light control and adjustment circuit, a three-state selection control, an automatic restart function, and a manual control block.

The circuit utilizes the KC778B integrated circuit, which is specifically designed for infrared applications. This component is crucial for processing signals received from the pyroelectric infrared sensor head (PIR), which detects motion by sensing changes in infrared radiation. The PIR sensor is strategically positioned to optimize its field of view, allowing it to effectively monitor the designated area for any movement.

Additionally, the light control and adjustment circuit enables users to regulate the intensity and duration of the light output based on the detected motion. This feature is particularly useful in applications such as automatic lighting systems in residential and commercial settings, where energy efficiency is a priority.

The three-state selection control allows for versatile operation modes, such as automatic, manual, and off settings. This flexibility provides users with the ability to customize the circuit's functionality according to their specific needs. The automatic restart function ensures that the circuit resumes operation seamlessly after a power interruption, enhancing reliability and convenience.

Lastly, the manual control block offers an alternative means of operation, allowing users to override automatic settings when necessary. This comprehensive control over the circuit's functions makes it suitable for a variety of applications, including security systems, automated lighting solutions, and energy management systems. The integration of these components within the circuit design ensures efficient performance and adaptability to various operational requirements.The circuit is shown as the chart. It is a control circuit which composed of infrared specific integrated circuit KC778B and KC778B is the center of the circuit. It s surrounded by a pyroelectric infrared sensor head PIR, light control and light control adjustment circuit, a three-state select control, automatic restart function and manual control block s..

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