LED lamp control method and device without light decay

An LED lamp and light decay control technology, applied in the field of lighting, can solve the problems of increased maintenance costs, shortened service life, accelerated attenuation speed, etc., and achieve the effect of reducing operation and maintenance costs, significant social benefits, and prolonging service life.

Inactive Publication Date: 2010-09-22
上海合亚经贸有限公司 +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

If this part of the heat cannot be dissipated in time, the junction temperature of the LED will rise.
If things go on like this, it will cause permanent damage to the LED if it is serious, and it will reduce the luminous efficiency of the LED, accelerate the decay speed, and shorten the service life
[0004] In order to reduce the junction temperature of the LED when it is wo

Method used

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  • LED lamp control method and device without light decay
  • LED lamp control method and device without light decay
  • LED lamp control method and device without light decay

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Embodiment Construction

[0034]Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. However, those skilled in the art should recognize that the following implementations are only exemplary, and are intended to better enable those skilled in the art to understand the patent, and should not be construed as limiting the scope of the patent; as long as Any equivalent changes or modifications based on the spirit disclosed in this patent and similar structures, methods and similar changes thereof all fall within the scope of this patent.

[0035] see figure 1 , the device for controlling LED lamp without light attenuation is composed of controller 1, AC / DC controllable constant current power supply 2, LED voltage measurement 3, LED current measurement 4, LED brightness measurement 5, ambient temperature measurement 6 and AC / DC DC stabilized power supply 7; AC / DC controllable constant current power supply 2 converts AC power into DC, and output...

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Abstract

The invention relates to an LED lamp control method and a device without light decay, the device comprises an AC/DC controllable constant current power supply, LED voltage measurement, LED current measurement, LED brightness measurement, environment temperature measurement and an AC/DC direct current voltage stabilizing power supply; the method comprises the following steps that after converting alternating current into direct current, the AC/DC controllable constant current power supply outputs constant direct current to an LED array according to the instruction of the controller: LED voltage measurement, LED current measurement and LED brightness measurement transmit the working conditions of the LED array to the controller in real time, and the controller sends the instruction of outputting current values to the AC/DC controllable constant current power supply according to preset control strategies and the measured environment temperature; simultaneously, once the working conditions of the LED array are found abnormal, the controller sends alarm information to a monitoring center in real time in a wired or wireless way through a communication interface; and the monitoring center can also send the working instructions to the controller in the wired or wireless way.

Description

Technical field: [0001] The invention relates to the field of lighting technology, and also to automatic control and information technology, in particular to a method and device for controlling LED lamps without light attenuation. Background technique: [0002] In today's situation of increasingly serious environmental pollution and energy shortage, LED lights have been continuously expanded due to their advantages of energy saving, environmental protection, high efficiency, and long life. [0003] LEDs emit light through electrical energy-light energy conversion. When an appropriate forward voltage is applied to the pins of the LED, in the PN junction of the LED, the injected minority carriers will recombine with the majority carriers and the excess energy will be released in the form of light, thereby converting the electrical energy Directly converted to light energy, while the remaining electrical energy is converted to heat energy. The theoretical electric energy-ligh...

Claims

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Application Information

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IPC IPC(8): H05B37/02H05B37/03
Inventor 孔繁金
Owner 上海合亚经贸有限公司
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