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LED emergency illumination lamp driving system

A technology of LED drive and drive system, which is applied in the direction of lighting devices, light sources, electrical components, etc., can solve the problems of large power consumption, short service life, and low illumination, and achieve high energy conversion efficiency, improved service life, and small volume Effect

Inactive Publication Date: 2017-09-15
邱晖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional emergency lighting basically uses incandescent lamps, but it has some disadvantages, such as large power consumption, low energy efficiency, low illumination, short service life, etc.

Method used

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  • LED emergency illumination lamp driving system

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Embodiment

[0018] see Figure 1-5 , the present invention provides a technical solution: an LED emergency lighting drive system, including an AC / DC constant voltage drive circuit 2, an input power selection auxiliary circuit 3, an LED drive circuit 4, an LED emergency light 5 and a battery charging circuit 6, The output end of the AC / DC constant voltage drive circuit 2 is electrically connected to an input power selection auxiliary circuit 3, and the battery charging circuit 6 is indirectly powered by the input power selection auxiliary circuit 3, and the input power selection auxiliary circuit 3 is electrically connected in turn. Connect the DC electrical equipment 7 and the LED drive circuit 4, the LED drive circuit 4 adopts a single-ended primary inductance converter L topology, the output end of the LED drive circuit 4 is electrically connected to the LED emergency light 5, and the AC / DC The constant voltage drive circuit 2 adopts the switching power supply circuit of step-down topol...

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Abstract

The invention discloses an LED emergency illumination lamp driving system. The LED emergency illumination lamp driving system comprises an AC / DC constant-voltage driving circuit, an input power supply selection auxiliary circuit, an LED driving circuit, an LED emergency lamp and a battery charging circuit; the output end of the AC / DC constant-voltage driving circuit is electrically connected with the input power supply selection auxiliary circuit; a switch power supply circuit with a Buck topological structure is adopted in the AC / DC constant-voltage driving circuit; 220V voltage is converted into 12V voltage to be output, so that high energy conversion efficiency is achieved; the battery charging circuit supplies power indirectly through the input power supply selection auxiliary circuit; the input power supply selection auxiliary circuit is electrically connected with direct current electrical equipment and the LED driving circuit in sequence; the power supply design topological structure is simple, and driving requirements of different kinds of elevators or LED emergency lamps of different power matched for different companies can be satisfied; and in addition, the circuit has the characteristics of practicability, energy conservation, long service life, high reliability and the like.

Description

technical field [0001] The invention relates to the technical field of emergency lighting lamps, in particular to a drive system for LED emergency lighting lamps. Background technique [0002] The elevator system is a special equipment that is closely related to personal safety. It has its own special electrical complexity. Emergency lighting is an important part of it. It is particularly important to ensure the reliability of the elevator emergency lighting system. Traditional emergency lighting basically uses incandescent lamps, but it has some disadvantages, such as large power consumption, low energy efficiency, low illumination, and short service life. With the improvement of LED performance, LED has gradually replaced incandescent lamps as emergency lighting for elevators due to its environmental protection, energy saving, shock resistance, and long service life, and has overcome these disadvantages of incandescent lamps. Since LED has high requirements on power suppl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/37
Inventor 邱晖
Owner 邱晖
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