Fluorescent lamp illuminance control circuit, fluorescent lamp control system and control method thereof

Abstract

The invention provides a fluorescent lamp illuminance control circuit, a fluorescent lamp control system and a control method thereof, which are applied to the field of fluorescent lamp illumination. The fluorescent lamp illuminance control circuit comprises a control module, a user input interface module, an illuminance sensor and a communication interface module, wherein the user input interface module is used for receiving a first illuminance value inputted by a user as required; the illuminance sensor is used for collecting light signals in real time according to light change in the environment and converting the light signals into light-current digital signals; and the control module is used for generating a second illuminance value which corresponds to the light-current digital signals and outputting illuminance control signals according to a dimming difference value obtained by using the first illuminance value to subtract the second illuminance value so as to control a dimming ballast, adjust the illuminance of a fluorescent lamp, and ensure that the illuminance in the environment is constant. The fluorescent lamp illuminance control circuit is used for outputting illuminance control signals to control the dimming ballast to adjust the illuminance of the fluorescent lamp, ensures that the illuminance in the environment is constant, saves energy and prolongs the service life of the fluorescent lamp.

Description

technical field [0001] The invention belongs to the field of fluorescent lamp lighting, and in particular relates to a fluorescent lamp illumination control circuit, a fluorescent lamp control system and a control method thereof. Background technique [0002] In the existing fluorescent lamp device, the user manually inputs the dimming signal to the dimming chip through the rotary button, and the dimming chip converts the 0-10V analog signal into a fixed PWM signal and outputs it to the driving circuit, and the driving circuit inverts the DC voltage The high-frequency AC voltage output required by the fluorescent lamp is used to drive the fluorescent lamp to realize the lighting of the lamp tube. [0003] If you want to change the illuminance in the environment, you need the user to adjust it by rotating the button; if you want to keep the environment in a constant illuminance, then as the light in the environment changes, you need the user to constantly adjust it. This kind...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an illumination control circuit for fluorescent lamps, aiming to solve the problems that the existing fluorescent lamps are difficult to ensure constant illumination, waste energy, and cannot prolong the life of the lamp tube

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