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LED constant current drive circuit and LED lamp

A LED lamp, constant current drive technology, applied in the field of automotive lamps, can solve the problems of high energy consumption, short life, LED constant current drive circuit and poor general performance of LED lamps, etc., and achieve the effect of avoiding circuit short circuit

Inactive Publication Date: 2018-10-02
许孙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The T20 car lamp with tungsten lamp can have no positive and negative poles, and has good general performance, but consumes a lot of energy and has a short life.
However, due to the characteristics of diodes, the T20 car lamp using LED lamps makes an LED constant current drive circuit and LED lamps have positive and negative poles, resulting in poor general performance of the LED constant current drive circuit and LED lamps.

Method used

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  • LED constant current drive circuit and LED lamp

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Embodiment Construction

[0011] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings, with reference to figure 1 , the LED constant current driving circuit and the LED lamp of the present embodiment include a housing 1 , a controller 2 disposed in the housing 1 , and a running light power supply connection device 3 electrically connected to the controller 2 . The housing 1 includes a rear cover 1-2, and the running lamp power connection device 3 is arranged in the rear cover 1-2, and the rear cover 1-2 is provided with a ventilation device 1-3 for heat dissipation. The controller 2 includes a controller and a number of LED lights installed on the controller. The LED lights can be arranged in multiple stages, which can increase the coverage area of ​​the lights and enhance the intensity of the lights. This embodiment is set to three levels . The first-stage LED lamp of the controller 2 is a triangular LED lamp 2-2, which is vertically install...

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Abstract

The invention discloses a LED constant current drive circuit and a LED lamp. The LED constant current drive circuit and the LED lamp include a shell, a controller composed of multiple LED lamps and disposed in the shell, and a power access device electrically connected to the controller, wherein the power access device is a half-rectification circuit. The LED constant current drive circuit and theLED lamp has the advantage that there is no need to distinguish between a positive pole and a negative pole of the power access device through the external connection of the half-rectification circuit, so that the condition of short circuit of the circuit, caused by a connection in a wrong way of the positive pole and the negative pole, can be avoided.

Description

technical field [0001] The invention relates to an automobile lamp. In particular, the invention relates to an LED constant current drive circuit and an LED lamp. Background technique [0002] Existing car lights generally adopt two forms, one is to use tungsten lamps; the other is to use LED lights (light emitting diodes). The T20 car lamp with tungsten filament lamp can have no positive and negative poles, and has good general performance, but consumes a lot of energy and has a short life. However, due to the characteristics of the diode, the T20 car lamp using the LED lamp makes an LED constant current drive circuit and the LED lamp have positive and negative poles, resulting in poor general performance of the LED constant current drive circuit and the LED lamp. [0003] Therefore, we need an LED constant current drive circuit and LED lamp with low energy consumption, long life and good general performance. Contents of the invention [0004] Based on the deficiencies...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/20F21V23/00H05B33/08F21W103/10H05B44/00
CPCF21V23/003H05B45/00
Inventor 许孙
Owner 许孙
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