LED lamp regulation and control system

Abstract

An LED lamp regulation and control system comprises a power supply, an MOS transistor, a signal encoding module, a regulation and control signal input module, a signal variation judgment module, an MOS transistor control module, an LED lamp, a filter capacitor, a signal decoding module and a DC / DC convertor. The signal encoding module is used for converting a regulation and control signal output by the regulation and control signal input module into a PWM signal, and the output of the signal encoding module is connected with a grid electrode of the MOS transistor so as to output the PWM signalto control the on / off state of the MOS transistor, so that the PWM signal is loaded to the output end of the power supply; the signal decoding module is used for converting the PWM signal loaded to the output end of the power supply connected with the MOS transistor into a dimming signal; the DC / DC converter controls output parameters of the LED lamp according to the dimming signal. According tothe LED lamp regulation and control system, the connection between the LED lamp and the power supply can be completed only through two wires, so that the lamp line layout difficulty is easily reduced,and the control over the size of a lamp structure is facilitated.

Description

technical field [0001] The invention relates to an illumination system, in particular to an LED lamp control system. Background technique [0002] With the concept of "humanized lighting" deeply rooted in the hearts of the people, lighting design should create a good indoor lighting effect to meet people's physiological and psychological requirements. The light output parameters of lamps are important factors in lighting design, such as color temperature, brightness and other parameters. Different color temperature or brightness give people different feelings and can meet the needs of different people. Therefore, in some lamps, the above purpose is achieved by adjusting the light output parameters of the lamp. The existing lamp adjustable control system is composed of a power supply, a controller and a lamp. like figure 1 As shown, it is the circuit diagram of the existing lighting control system. The circuit diagram includes a power supply 1, a signal control system ele...

Images