Method and apparatus for warming-up and starting up luminous tube

A technology for preheating and starting lamps, which is applied to lighting devices, light sources, electrical components, etc., to achieve the effects of simplified components, accurate preheating and start-up time

Active Publication Date: 2011-05-25
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Although the above method can preheat the lamp tube in advance to avoid the blackening of the lamp tube, but the grasp of the preheating time is not clear, and the aging of the electronic parts will The startup time is different each time

Method used

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  • Method and apparatus for warming-up and starting up luminous tube
  • Method and apparatus for warming-up and starting up luminous tube
  • Method and apparatus for warming-up and starting up luminous tube

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Embodiment Construction

[0068] The present invention is an electronic ballast for lighting a lamp tube, which starts the lamp tube after preheating the filament of the lamp tube in a frequency conversion preheating manner, such as figure 2 As shown, it is the filament preheating waveform diagram disclosed in the present invention, the lamp tube is lighted after the first preheating time and the second preheating time in the frequency conversion preheating method, so the preheating time can be accurately grasped, and the Due to the aging of electronic parts, the startup time is different each time. The preheating method disclosed by the present invention realizes frequency conversion by means of electronic circuit and software, and adopts flexible starting for the lamp tube, which can achieve the purpose of being used on lamp tubes of different starting forms and effectively prolonging the life of the lamp tube.

[0069] Please refer to image 3 , is a block diagram of the first lamp preheating and ...

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Abstract

The invention discloses a method for preheating-triggering luminous tube and the apparatus thereof, wherein the apparatus outputs at least one pulse in a preset frequency to drive at least one switch device and to let the luminous tube end of resonance device connected to the switch device to generate a trigger voltage by which pre-heating and lighting the luminous tube. The invention can shorten the pre-heat time using software solution, simplify the electronic circuit and adopt different pre-heating time for filament according to the luminous tube trigger type so as to extending the service life of luminous tube.

Description

technical field [0001] The invention relates to a lamp tube preheating and starting method and its device, in particular to a lamp preheating method which uses frequency conversion to preheat the filament so as to reduce the blackening phenomenon of the lamp tube and prolong the service life of the lamp tube. And starting method and device thereof. Background technique [0002] Please refer to figure 1 , is the basic circuit structure diagram of the known electronic ballast, the electronic ballast is composed of various electronic parts, for example, the power input module 1 is composed of an electromagnetic interference (EMI) filter, which is used to eliminate the noise passing through the AC line, and then passes through The full-wave rectification module 2 converts the AC into a DC output to the conversion module 3 . The conversion module 3 converts the DC line voltage from the power input module 1 into a high-frequency and high-voltage current to drive the lamp. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B41/14H05B41/295
Inventor 钟辉雄李丽玲古忠平陈燧宗
Owner IND TECH RES INST
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