How to control led lights
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG KAIYAO LIGHTING
- Publication Date
- 2017-07-07
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Abstract
Description
technical field
[0001] The invention relates to the technical field of LED lighting, in particular to a control method of an LED lamp that can effectively eliminate voltage drop and current drop. Background technique
[0002] With the application and promotion of LED in the field of lighting, more and more applications appear in our daily life, such as adjusting the brightness of the light, adjusting the color temperature, and adjusting the color.
[0003] Generally, the same-phase PWM is used for color mixing control for color temperature and color adjustment. The advantage is that the control method is simple and easy to implement.
[0004] However, the same-phase PWM signal output will cause a serious drop in the input voltage, resulting in large ripple current and stroboscopic problems, and the power supply at the input end will enter overload protection, making the LED lights unable to work normally.
[0005] Chinese patent authorization publication number: CN204062619...