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LED light source brightness control method, device, circuit, LED lamp and storage medium

A LED light source and brightness control technology, which is applied in the electronic field, can solve problems such as poor brightness control effect, and achieve the effects of stable luminous brightness, good brightness control effect, and high control accuracy

Active Publication Date: 2022-04-05
深圳和而泰小家电智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, this brightness control method has the problem of poor brightness control effect

Method used

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  • LED light source brightness control method, device, circuit, LED lamp and storage medium
  • LED light source brightness control method, device, circuit, LED lamp and storage medium
  • LED light source brightness control method, device, circuit, LED lamp and storage medium

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Embodiment Construction

[0054] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be further described in detail through the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the application, not to limit the application.

[0055] See figure 1 , the LED light source brightness control method provided by this application can be applied to such as figure 1shown in the LED luminaire. Wherein, the LED lamp includes an LED light source 10 , an LED light source brightness control circuit 20 and a power supply battery 30 . The power supply battery is electrically connected to the LED light source 10 and the LED light source brightness control circuit 20 respectively, and the LED light source brightness control circuit 20 is electrically connected to the LED light source 1...

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Abstract

The application relates to a method, device, circuit, LED lamp and storage medium for controlling the brightness of an LED light source. Wherein, the LED light source brightness control method includes: obtaining the current voltage of the power supply battery of the LED light source; determining the discharge stage of the power supply battery according to the current voltage; determining the pulse width modulation signal according to the current voltage and the discharge stage The duty ratio target value and the duty ratio adjustment period; adjust the pulse width modulation signal according to the duty ratio target value and the duty ratio adjustment period, and the pulse width modulation signal is used to control the brightness of the LED light source . The method for controlling the brightness of the LED light source provided in the present application can improve the accuracy of controlling the brightness of the light source and improve the control effect.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular to a brightness control method, device, circuit, LED lamp and storage medium of an LED light source. Background technique [0002] LED light sources are favored by people for their advantages of energy saving, environmental protection, low power and long service life. For the convenience of movement and use, many LED light sources are powered by batteries. However, the voltage of the storage battery will become lower and lower with use, and the current through the LED lamp will become less and less, resulting in dimming of the brightness of the LED light source. [0003] In order to keep the brightness of the LED light source constant, traditional technology mainly detects the voltage or current of the LED light source in real time. current to keep the driving current constant, so as to realize the constant brightness of the LED light source. [0004] However, this ...

Claims

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Application Information

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IPC IPC(8): H05B45/10H05B45/325H02J7/00
Inventor 涂灿林徐瑞辉
Owner 深圳和而泰小家电智能科技有限公司
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