Building lighting LED lamp constant-current driving system based on secondary protection circuit

A technology of constant current drive and secondary protection, which is applied in the direction of lighting devices, electric light sources, electrical components, etc., can solve the problems of increasing lighting costs, LED lights flickering, and reducing the service life of LED lights, so as to achieve stable lighting brightness and good Effects of lighting brightness and service life extension

Inactive Publication Date: 2016-08-17
CHENGDU YUEXIANGXIANG TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

In the power supply process of the building lighting system, the fluctuation of the current is unavoidable, and the LED lamp needs a relatively stable current condition when it is used. If the current fluctuates frequently, it will not only affect the lighting effect, but also cause the LED lamp to flicker. It will also greatly reduce the service life of LED lights and greatly increase the cost of lighting

Method used

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  • Building lighting LED lamp constant-current driving system based on secondary protection circuit
  • Building lighting LED lamp constant-current driving system based on secondary protection circuit

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Embodiment

[0017] Such as figure 1 As shown, the architectural lighting LED lamp constant current drive system based on the secondary protection circuit, the constant current drive system is composed of a power input circuit, a current determination circuit, a constant current chip circuit and a drive output circuit. In the constant current drive system, there are also There is a secondary protection circuit.

[0018] The power input circuit is composed of a diode bridge rectifier U1, a diode D1, a diode D2, a diode D3, a capacitor C1, a capacitor C2, and a capacitor C3.

[0019] When connected, the positive pole of capacitor C1 is connected to the positive output terminal of diode bridge rectifier U1, the negative pole is connected to the negative output terminal of diode bridge rectifier U1, the N pole of diode D1 is connected to the positive pole of capacitor C1, and the P pole is connected through The capacitor C2 is connected to the negative pole of the capacitor C1, the positive p...

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PUM

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Abstract

The invention discloses a building lighting LED lamp constant-current driving system based on a secondary protection circuit. The constant-current driving system consists of a power input circuit, a current judgment circuit, a constant-current chip circuit and a drive output circuit, and the secondary protection circuit is further arranged in the constant-current driving system. The building lighting LED lamp constant-current driving system based on the secondary protection circuit can well stabilize current, keep output current constant and avoid an electricity-using LED lamp against damage, well improves a lighting effect and reduces the lighting costs.

Description

technical field [0001] The invention belongs to the field of water pressure regulation systems, and specifically refers to a constant-current drive system for architectural lighting LED lamps based on a secondary protection circuit. Background technique [0002] In buildings, the lighting system is an indispensable system, and at the same time it is also a large power consumer, which needs to invest a lot of electricity. Compared with ordinary lighting, the owner of high-power LED lights has better luminous effect and saves energy. Therefore, most of the lighting systems in buildings today use LED lighting systems. In the power supply process of the building lighting system, the fluctuation of the current is unavoidable, and the LED lamp needs a relatively stable current condition when it is used. If the current fluctuates frequently, it will not only affect the lighting effect, but also cause the LED lamp to flicker. It will also greatly reduce the service life of the LED ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/37Y02B20/30
Inventor 罗文彬
Owner CHENGDU YUEXIANGXIANG TECH CO LTD
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