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LED lighting power supply

A technology for LED lighting and lighting power supply, applied in the field of electronics, can solve the problems of low utilization rate of alternating current, low conversion efficiency, low reliability, etc., and achieve the effects of light weight, energy saving and small size

Inactive Publication Date: 2012-07-11
DFINE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention aims to solve the technical problems of low AC utilization rate, low conversion efficiency, large volume, and low reliability of traditional LED lighting lamps, and provide a LED lamp with high AC utilization rate, high conversion efficiency, low power consumption, small size, and low weight. Lightweight, high stability, and reliable LED lighting power supply

Method used

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Embodiment Construction

[0024] The detailed structure of the present invention, application principle, function and effect, refer to the appended figure 1 , which will be described through the following embodiments.

[0025] refer to figure 1 As shown, the LED lighting power supply of the present invention has a peripheral waterproof protection cavity, wherein the input end of the electromagnetic interference filter EMI is connected to the AC input, its output end is connected to the input end of the power factor corrector PFC, and the output of the power factor corrector PFC The terminal is connected to the input terminal of the LLC resonant half-bridge, and the output terminal of the latter is connected to the rectified and filtered output.

[0026] The power factor corrector PFC is active, and the control chip adopts continuous mode IC.

[0027] The LED lighting power supply is mainly composed of two parts: PFC part and power conversion. Due to the addition of PFC, the power factor reaches 0.99...

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Abstract

The invention discloses a LED lighting power supply, which relates to the field of electronic communication and aims at solving the technical problems of low utilization rate of AC power, low conversion efficiency, big volume, low reliability and the like of the conventional LED lighting lamps. The LED lighting power supply is externally provided with a waterproof protection cavity, wherein the input end of an electromagnetic interference filter is connected with an AC input while the output end thereof is connected with the input end of a power factor corrector, the output end of the power factor corrector is connected with the input end of a LLC resonance half bridge, and the output end of the LLC resonance half bridge is connected with a rectifying and filtering output.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a driving power supply for high-power LED lighting. [0002] Background technique [0003] According to the prediction of international authorities, the 21st century will enter the era of new lighting sources represented by LEDs. Known as the fourth generation light source. LED semiconductor lighting has the characteristics of energy saving (more than 80% energy saving than traditional energy-saving lamps), and can completely replace the existing public lighting and household lighting. If 80% of the lighting in the country uses LED products, it can save the annual power generation of the Three Gorges Power Station by 847. 100 million degrees. The market size will reach as much as 5 trillion yuan. [0004] However, the LED lights that are common in the market currently have the following problems and deficiencies because the power supply part still basically adopts the traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02F21V31/00F21Y101/02F21Y115/10
Inventor 赖兵陈波姚华
Owner DFINE TECH