LED control circuit and LED drive power supply
A technology for controlling circuits and LED lights, applied in the direction of electric light sources, electroluminescent light sources, light sources, etc., can solve the problems of single control mode of LED lights, LED lights need to be optimized, and cannot be controlled, so as to save costs and reduce conduction time , control flexible effects
Active Publication Date: 2016-11-30
HEUVAN CHONGQING SCI TECH CO LTD
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Problems solved by technology
Based on the particularity of this kind of wiring, the same controller can only control multiple LED lights at the same time, such as multiple LED lights are turned on or off at the same time, but cannot control one LED light or some LED lights independently, so that the The control method of LED lights is relatively simple
Therefore, the existing control of LED lights still needs to be optimized
Method used
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[0041] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.
[0042] Before describing the specific implementation of the present invention, first briefly describe how the LED driving power supply in the prior art controls the LED lamp connected thereto.
[0043] Such as figure 2 Shown is a structural block diagram of an optional implementation of the LED driving power supply in the ...
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The invention relates to the technical field of LED lighting control, and discloses an LED control circuit and an LED drive power supply. The LED control circuit comprises a power supply module which is used for providing an initial voltage for a power management module; the power management module which is started under the drive of the initial voltage to output a first PWM signal to a PWM switching module and output a second PWM signal to the PWM switching module; the PWM switching module which is used for outputting a first working voltage to a control module and outputting a first drive voltage to LED lamps; and the control module which is started under the drive of the first working voltage to receive an external control instruction and output a control signal to the power supply management module. The PWM switching module is also used for outputting a second drive voltage to the LED lamps according to the second PWM signal. The second drive voltage is different from the first drive voltage. According to the circuit and the power supply, one or more LED lamps in the same group of loop are independently controlled.
Description
technical field [0001] The invention relates to the technical field of LED lighting control, in particular to an LED control circuit and an LED driving power supply. Background technique [0002] As a new lighting source, LED is more and more widely used in various lighting due to its advantages of high luminous efficiency, low power consumption, and long life. In the prior art, when installing LED lamps, in order to avoid laying out multiple sets of power lines and thereby raising the cost of LED lighting, such as figure 1 wiring shown. [0003] Such as figure 1 As shown, a plurality of LED lamps are installed in the same loop, and the same controller sends control commands to the driving power supplies correspondingly connected to the plurality of LED lamps, so as to achieve the purpose of centralized control of the plurality of LED lamps. Based on the particularity of this kind of wiring, the same controller can only control multiple LED lights at the same time, such a...
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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00Y02B20/30
Inventor 沙玉峰唐开锋
Owner HEUVAN CHONGQING SCI TECH CO LTD