Energy-saving lamp control method for automatically adjusting brightness and control circuit thereof
A technology for automatic adjustment and control of circuits, applied in electric light sources, electrical components, electroluminescent light sources, etc., can solve problems such as power waste, and achieve the effects of low cost, simple circuit structure and high efficiency
Pending Publication Date: 2018-10-19
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
Moreover, when the external light is relatively sufficient, the lighting still works at full capacity, providing additional unnecessary light, resulting in a large amount of unnecessary waste of electric energy and economic losses
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[0025] Below will combine the appended in the embodiment of the present invention figure 1 , clearly and completely describe the technical solutions 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0026] In this embodiment, a method for controlling energy-saving lamps with automatic brightness adjustment for LED lamps installed in shopping malls is proposed, including the following steps:
[0027] Step 1: External light is irradiated on the photosensitive components, so that the voltage of the photosensitive circuit changes;
[0028] Step 2: the analog-to-digital conversion circuit obtains the analog signal output by the photosensitive circuit, and converts the an...
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The invention discloses an energy-saving lamp control method for automatically adjusting brightness and a control circuit thereof. According to the method, after analog-to-digital conversion is performed on voltage of a photosensitive circuit, the control circuit reads a digital signal; voltage magnitude is converted to a light strength value n; furthermore n is compared with a preset number M, ifn<M, the control circuit outputs a signal for controlling a load circuit and starting a lamp; every a time period t1, one is added to n, and the n is compared with the M until n>=M, the control circuit outputs a signal for controlling the load circuit, thereby extinguishing the lamp; if n>=M, the control circuit outputs the signal for controlling the load circuit, thereby extinguishing the lamp;and after a time period t2, cycling the process again. According to the control method and the control circuit, brightness of the bulb is continuously adjusted according to different light strength ofthe outer environment, thereby keeping the ambient strength constant and realizing an energy-saving and omission-reduction purpose.
Description
technical field [0001] The invention relates to an energy-saving lamp control method for automatically adjusting brightness and a corresponding control circuit, in particular to a circuit for automatically adjusting the brightness of a bulb according to the light intensity of the external environment. Background technique [0002] According to the data, at present, my country's lighting electricity consumption accounts for about 13% of the electricity consumption of the whole society. For some units that have high requirements for lighting quality, long lighting time, and many lighting places, most of them will have all-day lighting and The resulting electricity consumption for lighting accounts for about 40% of all electricity consumption. Moreover, when the external light is relatively sufficient, the lighting still works at full capacity, providing additional unnecessary light, resulting in a large amount of unnecessary waste of electric energy and economic losses. Theref...
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Login to View More IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/395H05B45/10H05B45/37
Inventor 王思维房豪博刘翔
Owner NORTHWESTERN POLYTECHNICAL UNIV