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Method for controlling deep UV LED through pulse

A technology of deep ultraviolet and pulse pairs, which is applied in energy-saving control technology, lighting devices, light sources, etc., can solve the problems of high power consumption and limited service life of deep ultraviolet LEDs, and achieve the effects of power reduction, improved sterilization effect, and cost reduction

Active Publication Date: 2015-11-11
HONGLI ZHIHUI GRP CO LTD
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Problems solved by technology

[0003] At present, deep ultraviolet LEDs are generally driven by direct current. Therefore, in the normal working state of deep ultraviolet LEDs, deep ultraviolet LEDs continuously provide a fixed irradiance. Although the sterilization effect of deep ultraviolet LEDs can be improved by adjusting the current, due to the Ultraviolet LEDs are in a continuous power supply state, and according to the existing thinking is to simply increase the DC current value, therefore, the power consumption is large, and the service life of deep ultraviolet LEDs is limited

Method used

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  • Method for controlling deep UV LED through pulse
  • Method for controlling deep UV LED through pulse
  • Method for controlling deep UV LED through pulse

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] The method of controlling the deep ultraviolet LED by pulse is to control the deep ultraviolet LED by providing a pulsating direct current with one or more combinations of a fixed or variable pulse width, a fixed or variable pulse period, and a fixed or variable pulse peak value. Work, wherein the pulse peak current is greater than the rated operating current of the deep ultraviolet LED; the operating voltage of the deep ultraviolet LED conforms to the volt-ampere characteristic curve of the deep ultraviolet LED.

[0019] The pulsating direct current recorded above includes the following methods:

[0020] (1) Provide a pulsating DC current with a fixed or variable pulse width.

[0021] (2) Provide a pulsating DC current with a fixed or variable pulse period.

[0022] (3) Provide a pulsating DC current with a fixed or variable...

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Abstract

The invention discloses a method for controlling a deep UV LED through pulses. Pulse DC with one or more combination of a fixed or variable pulse width, a fixed or variable pulse period and a fixed or variable pulse peak value controls the work of the deep UV LED, wherein the pulse peak value current is greater than the rated operational current of the deep UV LED, and the working voltage of the deep UV LED is in accordance with the volt-ampere characteristic curve of the deep UV LED. The method increases the radiation illumination of a certain time period, improves disinfection effect, and prolongs the service lifetime of the deep UV LED.

Description

technical field [0001] The invention relates to a method for controlling deep ultraviolet LEDs. Background technique [0002] Now, deep ultraviolet LEDs are more and more widely used in the field of sterilization and disinfection. For deep-ultraviolet LEDs, the effect of sterilization and disinfection mainly depends on the irradiance of deep-ultraviolet LEDs. At a certain point in time, the greater the irradiance value, the easier it is for ultraviolet light to destroy bacterial tissues, and the better the effect of sterilization and disinfection. The irradiance is related to the current value, the larger the current value, the greater the irradiance value. [0003] At present, deep ultraviolet LEDs are generally driven by direct current. Therefore, in the normal working state of deep ultraviolet LEDs, deep ultraviolet LEDs continuously provide a fixed irradiance. Although the sterilization effect of deep ultraviolet LEDs can be improved by adjusting the current, due to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 吕天刚王跃飞张强李坤锥
Owner HONGLI ZHIHUI GRP CO LTD
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