Anti-electromagnetic interference type energy-saving control system for blue light LED

Abstract

The invention discloses an anti-electromagnetic interference type energy-saving control system for a blue light LED. The anti-electromagnetic interference type energy-saving control system for the blue light LED is characterized in that the anti-electromagnetic interference type energy-saving control system is mainly composed of a control chip U2, a triode VT2, a rectifying and filtering circuit, a gate driving circuit, a polar capacitor C5, a resistor R5, an active filtering circuit, a current limiting circuit and a voltage detection circuit, wherein the polar capacitor C5 is connected in series between the VDD pin and LN pin of the control chip U2, the resistor R5 is connected in series between the RT pin of the control chip U2 and the base of the triode VT2, the active filtering circuit is connected in series between the LN pin of the control chip U2 and the gate driving circuit, the current limiting circuit is connected with the emitter of the triode VT2 and the CS pin of the control chip U2, and the voltage detection circuit is connected in series between the rectifying and filtering circuit and the gate driving circuit. The anti-electromagnetic interference type energy-saving control system of the invention has high load capacity, and the load capacity of the anti-electromagnetic interference type energy-saving control system is improved by more than 70% compared with the load capacity of an existing LED control system, and at the same time, the anti-electromagnetic interference type energy-saving control system can output stable current to ensure the stability of the brightness of a blue light LED lamp effectively.

Description

technical field [0001] The invention relates to the field of electronic energy saving, in particular to an energy saving control system for anti-electromagnetic interference blue light LEDs. Background technique [0002] As a new type of energy-saving light source, LED lights have been widely accepted and adopted by people due to their environmental protection, energy saving, long life, and small size. Since LED is a semiconductor device with sensitive characteristics and has negative temperature characteristics, the control system of LED plays a very important role in the stable and reliable working state of LED in the application process. [0003] With the continuous improvement of people's living standards, there are higher requirements for the energy consumption of the brightness of LED lights, whether at home or in stores, that is, people need to further improve the brightness of LED lights while requiring LED lights to have lower energy consumption. consumption. Howe...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of unstable output current, low anti-electromagnetic interference ability, and low load capacity of the LED control system in the prior art, and provide an energy-saving control system for blue light LEDs with anti-electromagnetic interference

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