Method capable of switching dimming control modes of LED power supply
A technology of LED power supply and dimming control, applied in the direction of electrical components, etc., can solve problems such as shortened service life of lamps, stroboscopic occurrence, and impact on lighting, so as to achieve good user experience and prolong service life
Pending Publication Date: 2021-09-21
珠海沃梵科技有限公司
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[0003] In the field of existing LED power supplies, PWM dimming is a very mature dimming technology, and its advantages are also very obvious. Combining with digital control technology, it can have extremely high dimming control accuracy, and it is not Any chromatographic shift will occur, but it also has disadvantages. The PWM frequency will affect the lighting effect. If the frequency is low, there will be flickering, the dimming method is unstable, and the inappropriate dimming control method will shorten the service life of the lamp.
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[0029]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0030] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted from the present invention.
[0031] see figure 1 As shown, in this embodiment, a method for switching the dimming control mode of the LED power supply is provided, including: scheme 1, scheme 2,
[0032] Option 1, including:
[0033] Step 1. Supply power to the power driver, and the digital control circuit start...
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The invention discloses a method capable of switching dimming control modes of an LED power supply, and relates to the technical field of LED power supply dimming. The method comprises the following steps of supplying power to a power supply driver, enabling a digital control circuit to start working, enabling the digital control circuit to default a dimming control mode to be an output voltage volt value adjusting control mode at the moment, switching a signal state of the circuit by detecting and identifying the dimming control mode, and judging the dimming control mode once. The invention provides the method for realizing the dimming control modes of the LED power supply, switching between a PWM dimming control mode and an output voltage value adjusting control mode without stroboflash, having stable dimming accuracy, and for switching the dimming control modes, so that a user can be helped to select the most appropriate dimming control mode according to the specific properties of an actually used lamp, the service life of the lamp can be prolonged through the appropriate dimming control mode, and the user can obtain better use experience.
Description
technical field [0001] The invention belongs to the technical field of dimming of LED power supplies, in particular to a method capable of switching the dimming control mode of LED power supplies. Background technique [0002] Electric lamps, that is, artificial lighting appliances that use electricity as energy, can convert electricity into light, which greatly promotes the progress of human civilization. Common types of electric lamps include incandescent lamps, fluorescent lamps, and LED lamps. [0003] In the field of existing LED power supplies, PWM dimming is a very mature dimming technology, and its advantages are also very obvious. Combining with digital control technology, it can have extremely high dimming control accuracy, and it is not Any chromatographic shift will occur, but it also has disadvantages. The PWM frequency will affect the lighting effect. If the frequency is low, there will be strobe, the dimming method is unstable, and the inappropriate dimming co...
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IPC IPC(8): H05B45/30H05B45/325H05B45/10
CPCH05B45/30H05B45/325H05B45/10
Inventor 温国标谭初强阮成锋
Owner 珠海沃梵科技有限公司