LED energy-saving lighting device

A technology for lighting devices and LED lamps, applied in lighting devices, electric light sources, electrical components, etc., can solve problems such as inability to achieve self-adaptive adjustment, difficult promotion, audio noise, etc., to reduce light pollution, stabilize light waves, and avoid waste of electric energy Effect

Inactive Publication Date: 2016-03-16
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thyristor dimming energy-saving lamps adjust the lighting brightness through thyristor components, but it will produce audio noise and flicker when driving LEDs, and manual dimming is required; and intelligent lighting systems used in public places

Method used

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] The invention detects the external illuminance through the illuminance sensor, and transmits the analog signal of the current illuminance value to the single-chip microcomputer module, and the single-chip microcomputer module compares the current actual illuminance value with the set standard illuminance value according to the measured environmental illuminance according to the set program. Adjust the duty cycle of the PWM pulse signal and output it. If the actual value is lower than the standard value, increase the duty cycle to increase the brightness of the LED light, otherwise reduce the duty cycle; the adjusted PWM signal is amplified by the amplifying circuit. The amplifying circuit amplifies the PWM signal and sends it to the LED, and finally achieves the self-adaptive adjustment of the light brightness, saving power and reducing light pollution.

[0029]...

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Abstract

The invention discloses an LED energy-saving lighting device, which comprises a lighting module, a detection module, a single chip microcomputer module, a voltage regulation module and a power supply module, wherein the lighting module adopts a surface-mount LED lamp; the detection module comprises an illumination sensor and an AD converter, the illumination sensor acquires illumination, the illumination value is converted into an analog signal via the AD converter, and the analog signal is transmitted to the single chip microcomputer module; the single chip microcomputer module compares the current actual illumination value with a set standard illumination value, if the actual value is lower than the standard value, the duty ratio is increased to improve brightness of the surface-mount LED lamp, or otherwise, the duty ratio is reduced; and the voltage regulation module comprises am amplifying circuit, a PWM signal regulated via the single chip microcomputer module is amplified via the amplifying circuit, dimming of the surface-mount LED lamp is driven, and energy-saving lighting of the LED is realized. While light pollution is reduced, unnecessary electric loss is also reduced, and good energy-saving and emission-reducing effects are achieved.

Description

technical field [0001] The invention relates to a lighting device, in particular to an LED power-saving lighting device. Background technique [0002] Data show that in 2012 my country's electricity production was 49875.5 kWh. Among them, the power consumption of lighting accounts for 13% of the electricity consumption of the whole society, and the electricity consumption of lighting is still increasing at an average rate of 15% every year, and the power consumption of lighting is large. At the same time, my country's lighting demand is huge. In 2010, the market demand for energy-saving lamps was about 1.269 billion, the market demand for incandescent lamps was about 1.176 billion, the market demand for straight fluorescent lamps was about 830 million, and the market demand for circular fluorescent lamps was 8. billion. From the perspective of product structure, LED general lighting products will account for 69% of the total general lighting in 2020. Therefore, the promotio...

Claims

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Application Information

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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/10
Inventor 吴波任钰琦胡炯峰陈子薇孙磊陈博王丽红
Owner WUHAN UNIV OF TECH
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