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Method, device and lighting equipment for preventing overvoltage and undervoltage operation of lamp group

A lamp group and overvoltage technology, which is applied in the direction of lighting devices, the use of semiconductor lamps, electroluminescent light sources, etc., can solve the problems of burning load, overvoltage, failure to provide, etc., and achieve the effect of reducing failure rate and property loss

Active Publication Date: 2019-06-18
CHONGQING SILIAN OPTOELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method, device and lighting equipment for preventing overvoltage and undervoltage of the lamp group, which are used to solve the problem that the existing road lighting equipment only has the function of lightning protection. Unable to provide a solution to the problem of long-term overvoltage, undervoltage, and pulse surge voltage burning the load

Method used

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  • Method, device and lighting equipment for preventing overvoltage and undervoltage operation of lamp group

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Embodiment 1

[0036] This embodiment will provide a method to prevent overvoltage and undervoltage operation of the lamp group, such as figure 1 As shown, the specific implementation steps or process of the method will be described in detail below.

[0037] Step S10, digital sampling to obtain the voltage signal of the power supply supplying power to the lamp group.

[0038] In the specific implementation, the lamp group can work normally only under the drive of the power supply, but if the voltage of the power supply used to supply power to the lamp group exceeds a certain voltage range or is lower than a certain voltage range, it may cause damage to the lamp group. Groups cause damage, which is a problem that the present invention may overcome. In the prior art, only overvoltage protection is often adopted, and technical considerations that do not involve undervoltage protection are used.

[0039] In addition, in this step S10, the voltage signal is obtained by means of digital sampling...

Embodiment 2

[0052] This embodiment will provide a device for implementing the method of preventing overvoltage and undervoltage operation of the lamp group in the above embodiment 1, please refer to figure 2 , the present embodiment provides a device 100 for preventing overvoltage and undervoltage operation of the lamp group, including an AD acquisition module 120 and a control module 130, wherein the AD acquisition module 120 is used for digital sampling to obtain the voltage signal of the power supply supplying power to the lamp group ; The control module 130 is used to judge the overvoltage and undervoltage of the voltage signal: if the voltage value of the voltage signal remains greater than the first preset value for a first preset duration, or the voltage value of the voltage signal remains If the second preset duration is less than the second preset value, control to disconnect the power supply to supply power to the lamp group; if the voltage value of the voltage signal remains gr...

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Abstract

The present invention provides a method, device and lighting equipment for preventing over-voltage and under-voltage operation of a lamp group, wherein the method includes digital sampling to obtain a voltage signal of a power supply supplying power to the lamp group; Undervoltage judgment: if the voltage value of the voltage signal remains greater than the first preset value for the first preset time length, or the voltage value of the voltage signal remains smaller than the second preset value for the second preset time length, then control Turn off the power supply to supply power to the lamp group; if the voltage value of the voltage signal remains greater than or equal to the second preset value and less than or equal to the first preset value for a third preset duration, then control to turn on the power supply To supply power to the lamp group, the above method provided by the present invention can effectively disconnect the power supply to supply power to the lamp group when undervoltage or overvoltage occurs, thereby effectively protecting the lamp group from overvoltage or undervoltage caused by the lamp group. damage.

Description

technical field [0001] The invention relates to the technical field of lighting control, in particular to a method, device and lighting equipment for preventing overvoltage and undervoltage operation of a lamp group. Background technique [0002] With the rapid development of the lighting field, high-power lighting fixtures such as LED street lights, LED tunnel lights, and LED factory lights have been widely used. Now LED energy-saving products have been recognized and favored by the government and users in the transformation of road lighting. Promote the development of LED road lighting. However, in the actual use of LED road lighting and LED factory lighting, it can be found that the actual application status of many road lighting power supplies is not optimistic. LED street lights are installed outdoors, and lightning strikes are a very big danger. Fires and casualties will cause huge losses to social property; factory lighting will also have the start and stop of super-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/50Y02B20/30
Inventor 杨湖光胡栋万秀锋段云张伦瑛彭智利苟茜婷
Owner CHONGQING SILIAN OPTOELECTRONICS SCI & TECH
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