Multi-channel dimming device and dimming method thereof
A technology of multi-channel dimming and dimming mode, applied in lighting devices, electric lamp circuit layout, light source and other directions, can solve the problems of difficulty in reducing the volume of the control device and increase the cost of the dimming control device, and achieves long service life of the light source, Simple structure and cost reduction effect
Active Publication Date: 2016-10-19
惠州雷士光电科技有限公司 +1
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Problems solved by technology
However, the disadvantage of the above solution is that in order to control the lighting or brightness adjustment of multiple semiconductor light sources, a plurality of corresponding driving devices must be provided to realize it, so not only the cost of the dimming control device is increased, but also it is difficult to reduce the cost of the control device. volume
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[0042] The multi-channel dimming device and dimming method of the present invention will be further described in detail below in conjunction with specific embodiments and drawings.
[0043] figure 1 It shows the functional structure and control signal flow of the multi-channel dimming device of the present invention. In terms of functions, the multi-channel dimming device mainly includes a control input device, a control unit and a power drive unit, which are used to drive multiple semiconductor light sources (light source 1, light source 2..., light source N, N is an integer), and A variety of dimming effects can be achieved.
[0044] Wherein, the control input unit is used for generating corresponding dimming control signals (dimming control signal 1, dimming control signal 2 . . . , dimming control signal M, M being an integer) according to user input. The control input unit can be an electrical switch or a wireless remote control input module, such as a Wi-Fi remote cont...
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The invention relates to a multipath dimming device for use in an illuminating occasion and a dimming method thereof. The multipath dimming device comprises a control input device, a control unit and a power supply driving unit, wherein the control input device is used for generating a dimming control signal according to user input; the control unit is used for outputting a mode control signal according to the dimming control signal; the power supply driving unit is used for alternatively driving a multipath semiconductor light source to build up luminance according to the mode control signal. In one alternative driving period, the nonelectric time of at least one part in the semiconductor light sources does not exceed the persistence time thereof. According to the multipath dimming device, the output of the driving unit is stable, intermittent overvoltage protection is avoided, circuit running is more stable, the service life is prolonged, and the dimming effect of multi-stage or stepless adjustment of color temperature and brightness can be realized.
Description
technical field [0001] The invention relates to the field of dimming control, in particular to a multi-channel dimming device and a dimming method thereof. Background technique [0002] Existing dimming forms can include single light source dimming and multi-light source dimming. Dimming of a single light source is generally only used to adjust the brightness and darkness of the light source. Multi-light source dimming can not only control the brightness and darkness of the overall output of the light source, but also adjust the color temperature and even the color of the overall output of the light source, such as the common form of RGB mixed light adjustment. [0003] Taking the semiconductor light source as an example, at present, a single driving device is usually used to adjust the light in the form of a single semiconductor light source, that is, semiconductor light sources of different colors or different color temperatures are respectively connected to their corresp...
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IPC IPC(8): H05B37/02
Inventor 路博
Owner 惠州雷士光电科技有限公司