Vehicle headlamp lighting control device
A technology for lighting control and car headlights, applied in the direction of electrical components, etc., can solve the problems of high cost of color temperature adjustment and complicated control, and achieve the effect of reducing the cost of color temperature adjustment
Active Publication Date: 2021-04-16
SHENZHEN EASTFIELD LIGHTING
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[0003]The traditional way to adjust the color temperature of headlights is to use single-chip microcomputer for dimming control, which can realize range dimming, so that users can adjust the color temperature according to the actual weather conditions during driving. The color temperature is adjusted in a range, but the dimming control is performed by a single-chip microcomputer, the control is complicated, and there is a disadvantage of high cost of color temperature adjustment
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[0021] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.
[0023] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element, or connected to the other element through an inte...
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The invention relates to a vehicle headlamp lighting control device which comprises a first constant-current control circuit, a second constant-current control circuit, a first lighting lamp, a second lighting lamp and an adjusting circuit; the input end of the first constant-current control circuit is connected with an external power supply end, and the dimming end of the first constant-current control circuit is connected with the adjusting circuit; the output end of the first constant-current control circuit is connected with the first lighting lamp, the input end of the second constant-current control circuit is connected with an external power supply end, the dimming end of the second constant-current control circuit is connected with the adjusting circuit, the output end of the second constant-current control circuit is connected with the second lighting lamp, and the adjusting circuit is connected with the external power supply end. The voltage values of the dimming end of the first constant-current control circuit and the dimming end of the second constant-current control circuit are adjusted by the adjusting circuit according to the received voltage, and the power supply current of the first constant-current control circuit and the second constant-current control circuit to the lighting lamps is controlled, so that the brightness of the lighting lamp is changed to realize color temperature adjustment, and the color temperature adjustment cost is reduced.
Description
technical field [0001] The present application relates to the technical field of vehicle lighting control, in particular to a vehicle headlight lighting control device. Background technique [0002] At present, the color temperature of the headlights on the market is different, but they can all meet the normal driving lighting, but the lighting effect has certain limitations in different weather environments. For example, when driving at night in sunny weather, the lighting effect of white light is better, while the lighting effect of warm white light is slightly inferior; when driving at night in rainy days, the lighting effect of warm white light is better, and the lighting effect of white light is inferior. Therefore, it is necessary to adjust the color temperature of the headlights so as to better adapt to the actual environment. [0003] The traditional way of adjusting the color temperature of headlights is to use a single-chip microcomputer for dimming control, which...
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IPC IPC(8): H05B47/10H05B45/345H05B45/10H05B45/20
Inventor 谢东李万丰饶汉鑫陆群
Owner SHENZHEN EASTFIELD LIGHTING
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