Automobile indoor atmosphere lamp light modulation circuit

A technology of dimming circuit and ambient light, which is applied in the field of LED dimming, can solve the problems that cannot be realized, and achieve the effect of adjusting the atmosphere in the car

Active Publication Date: 2016-04-13
CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

He uses the LED driver to switch repeatedly to realize the dimming function. The user's system only needs to provide digital pulses with different widths and narrows to simply change the output current to adjust the brightness

Method used

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  • Automobile indoor atmosphere lamp light modulation circuit
  • Automobile indoor atmosphere lamp light modulation circuit
  • Automobile indoor atmosphere lamp light modulation circuit

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Embodiment Construction

[0022] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; either directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

[0023] Such as Figure 1-4 As shown, the automotive interior ambient light dimming circuit of this embodiment includes a PWM pulse generating unit 2 and a brightness adjusting unit 3, the PWM pulse generating unit 2 is connected to the center console 1, and the center console 1 is used to adjust the PWM pulse generating unit 2 The PWM pulse generating unit 2 generates corresponding PWM brightness adjustment pulses according to the duty ratio, and the brightness ad...

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Abstract

The invention relates to technical field of automobile indoor lamp light modulation and especially relates to an automobile indoor atmosphere lamp light modulation circuit. The automobile indoor atmosphere lamp light modulation circuit comprises a PWM pulse generation unit and a brightness adjusting unit. The PWM pulse generation unit is connected with a central console. The central console is used for adjusting the duty ratio of the PWM pulse generation unit. The PWM pulse generation unit generates corresponding PWM brightness adjusting pulses according to the duty ratio. The brightness adjusting unit adjusts the brightness of an atmosphere lamp by means of the PWM brightness adjusting pulses. According to the invention, a user can control the brightness of the atmosphere lamp to change in a certain range in real time through central console touch screen software when using the automobile indoor atmosphere lamp light modulation circuit, and the function of indoor atmosphere adjustment is realized.

Description

technical field [0001] The invention relates to the technical field of LED dimming, in particular to the dimming technology of indoor atmosphere lights of automobiles. Background technique [0002] Interior ambient light is the abbreviation of flexible high-brightness astigmatism optical fiber LED ambient light. It is a decorative lighting, usually red, blue, green, etc., mainly to make the car more beautiful at night, enhance the atmosphere inside the car, enhance sensory stimulation, improve the driving experience of the car, and indicate the grade of the whole car. The main material of the ambient light in the car is LED. As a light source, white LEDs are increasingly used in automotive electronics. With the advancement of the times, people's requirements for electronic products continue to increase. Many customers hope that the brightness of the light source can be adjusted in different applications. At present, there are three main dimming technologies: PWM dimming, a...

Claims

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Application Information

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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00Y02B20/30
Inventor 孙徐佳仇芳宇夏承军柴正
Owner CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST
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