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Light fixture control system

一种控制系统、灯具的技术，应用在节能控制技术、电灯电路布置、照明装置等方向，能够解决休眠滋扰、浪费大、灯具使用寿命影响也较大等问题，达到避免电能的浪费的效果

Inactive Publication Date: 2011-06-01
FU ZHUN PRECISION IND SHENZHEN +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such public places, the number of lamps used is very large. If they are used continuously for 24 hours or 12 hours at full brightness, especially in the middle of the night, the waste will be large. The lighting of the time has a greater impact on the service life of the lamp

Method used

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Examples

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Embodiment Construction

[0014] see figure 1 , is a circuit block diagram of the lamp control system 10 in an embodiment of the present invention, which includes an AC power supply 20 , an AC / DC constant voltage circuit 30 , a constant current circuit 40 and a control circuit 50 . The lamp control system 10 is used to control a lamp 60 to illuminate with different brightness within a set period of time. The lamp 60 is connected to the constant current circuit 40 . The lamp 60 is a light emitting diode (LED) street lamp.

[0015] The input and output of the AC / DC constant voltage circuit 30 are electrically connected to the AC power source 20 and the constant current circuit 40 respectively. The AC / DC constant voltage circuit 30 receives the AC power provided by the AC power supply 20 , converts the AC power into DC power and outputs a DC power with a constant voltage to the constant current circuit 40 . The constant current circuit 40 is a constant current source chip circuit with a voltage input t...

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PUM

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Abstract

The invention discloses a light fixture control system which comprises a constant-current circuit and a control circuit, wherein the constant-current circuit is connected to a light fixture; the control circuit is connected to the constant-current circuit, and comprises a timing unit, a control unit and a PWM (pulse width modulation) signal generating unit; the timing unit takes the continuously-used time between each start and shut of the light fixture as a cycle to set a plurality of time sections, and sends a clock signal to the control unit when the timing of each time section stops; the control unit controls the PWM signal generating unit to output a PWM signal with a specific duty ratio to the constant-current circuit after receiving the clock signal; and the constant-current circuit outputs a current with a corresponding size to the light fixture when receiving the PWM signal with the specific duty ratio, thus the light fixture is driven to illuminate with specific brightness at each time section.

Description

technical field [0001] The invention relates to a lamp control system, in particular to an energy-saving lamp control system suitable for public places. Background technique [0002] At present, high-power light-emitting diodes (LEDs) have been applied to more and more fields due to their energy-saving, environmental protection, and high-efficiency characteristics, such as street lights, advertising lights, parks, revolving lanterns, trains and other public places. , and with the popularization and application of solar energy and other power supply methods in places without mains electricity, combining it with LED lamps required in public places will have a very good effect on people's life and production. In such public places, the number of lamps used is very large. If they are used continuously for 24 hours or 12 hours at full brightness, especially in the middle of the night, the waste will be large. The lighting time has a greater impact on the service life of the lamp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCH05B37/0281Y02B20/42H05B33/0854Y02B20/40H05B45/10H05B47/16
Inventor 古金龙张大朋
Owner FU ZHUN PRECISION IND SHENZHEN
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