Surge voltage resistant pulse-type driving power supply for LED lamp

A technology for LED lamps and driving power, applied in the direction of electric lamp circuit layout, electric light source, light source, etc., can solve the problems of shortened life, increased temperature rise of LED lamps, reduced power factor, etc., to improve working life, prevent excessive temperature, Life extension effect

Inactive Publication Date: 2013-02-20
广东大上科电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. Non-polar capacitors and polarized electrolytic capacitors are used in electronic circuits, and electrolytic capacitors are devices whose life is much lower than that of LED components, so LED lights are threatened by shortening their service life;
[0008] 2. Due to the presence of capacitance in the driving power supply, the LED light bec...

Method used

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  • Surge voltage resistant pulse-type driving power supply for LED lamp
  • Surge voltage resistant pulse-type driving power supply for LED lamp
  • Surge voltage resistant pulse-type driving power supply for LED lamp

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Embodiment Construction

[0049] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0050] figure 1It is a principle block diagram of the present invention, in which, the dotted box represents the rectifier bridge 100 . The present invention consists of a rectifier bridge 100 and a limiter circuit 200, wherein the rectifier bridge 100 includes a bridge arm one 101, a bridge arm two 102, a bridge arm three 103 and a bridge arm four 104; and, the bridge arm one 101, the bridge arm The respective ends of the third arm 103 are connected together to become the input end 1 of the rectifier bridge 100, and the respective ends of the second arm 102 and the fourth arm 104 are connected together to become the input end 2 of the rectifier bridge 100. The other end of described bridge arm one 101, bridge arm two 102 is connected together and becomes the output terminal 3 of described rectifier bridge 100, and the other end of described bridge arm three 10...

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PUM

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Abstract

The invention discloses a surge voltage resistant pulse-type driving power supply for an LED lamp. The driving power supply is provided with a rectifier bridge and a limiter circuit, wherein the limiter circuit is composed of a negative temperature coefficient (NTC) thermistor and a third monopole type transient voltage suppressor (TVS3); and the rectifier bridge is composed of a first bridge arm, a second bridge arm, a third bridge arm and a fourth bridge arm. Each of the first bridge arm and the second bridge arm is formed by a fourth rectifier diode (D4) and a third rectifier diode (D3); the third bridge arm is composed of a second rectifier diode (D2) and a second monopole type transient voltage suppressor (TVS2); and the fourth bridge arm is composed of a first rectifier diode (D1) and a first monopole type transient voltage suppressor (TVS1) whose negative poles are connected.

Description

technical field [0001] The invention relates to the field of LED lamps, in particular to a "pulse drive power supply for LED lamps with anti-surge voltage" with the function of anti-surge voltage. Background technique [0002] Because of the advantages of energy saving, environmental protection, long life, fast response, rich colors, and controllability, LED lamps are recognized as the best way to realize energy saving and consumption reduction of lamps by promoting LED lamps. Japan estimates: If half of Japan's incandescent and fluorescent lamps are replaced with LED lamps, it will save Japan 6 billion liters of crude oil equivalently every year! Some people even think that: LED light is one of the most important inventions of human beings after Edison invented the incandescent light bulb. Lamp housing (or lampshade), Light Emitting Diode (Light Emitting Diode) components (referred to as LED components in this article), driving power of LED components (referred to as drivi...

Claims

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Application Information

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IPC IPC(8): H05B37/02
Inventor 汪孟金
Owner 广东大上科电子科技有限公司
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