Method and electronic ballast for starting gas discharge lamp for the second time without lamp filaments
A technology of gas discharge lamps and electronic ballasts, which is applied in the field of lighting, can solve the problems of irregular manufacturing and use of electronic ballasts, mismatch between electronic ballasts and lamp tubes, and short life of electronic lighting lamps, etc. The service life and the effect of protecting safety
Inactive Publication Date: 2012-09-19
广东索正吉华光电照明有限公司
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Problems solved by technology
However, the manufacture and use of electronic ballasts in the market is not standardized, and the mismatch between electronic ballasts and lamp tubes leads to short service life of electronic lighting lamps.
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] Such as figure 1 Shown is a block diagram of the method for starting a gas discharge lamp twice without a filament according to the present invention. This embodiment includes a power supply 10 , an anti-interference circuit 20 , a rectifier circuit 30 , a PFC circuit 40 , a trigger circuit 50 , a high-frequency oscillation circuit 60 , an output circuit 70 and a shunt and gas discharge lamp 80 .
[0020] Such as figure 2 Shown is a flow chart of the method of the present invention for secondary filamentless starting of a gas discharge lamp. In step S100, the voltage of the power supply 10 is input.
[0021] In step S102, anti-interference filtering is performed on the power supply voltage.
[0022] In step S104, the power supply voltage is rectified and filtered.
[0023] In step S106, the power supply voltage is converted into a ...
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The invention discloses a method for starting a gas discharge lamp for the second time without lamp filaments, comprising the following steps of: inputting a power voltage; carrying out anti-interference filtering on the power voltage; carrying out rectification filtering on the power voltage; converting the power voltage into a high-frequency voltage; inputting the high-frequency voltage to the gas discharge lamp; and distributing the current of the lamp filaments of the gas discharge lamp. The invention also discloses an electronic ballast for starting the gas discharge lamp for the second time without the lamp filaments. The method and the electronic ballast for starting the gas discharge lamp for the second time without the lamp filaments adopt a mode of distributing the current of the lamp filaments, which avoids that the lamp filaments are impacted by strong current, and prevents the lamp filaments of the gas discharge lamp from being burnt out.
Description
【Technical field】 [0001] The invention relates to the lighting field, in particular to a method for starting a gas discharge lamp without a filament twice and an electronic ballast. 【Background technique】 [0002] With the emergence of the global energy crisis, the sense of urgency to save energy has led many companies to devote themselves to the research of energy-saving light sources and electronic ballasts for fluorescent lamps. With the rapid development of semiconductor technology, various high back-voltage power switching devices continue to emerge. The development of electronic ballasts provides the conditions. [0003] At present, the electronic ballast is composed of a rectifier circuit, a trigger circuit, a high frequency oscillation circuit and an LC series output circuit. The electronic ballast is to invert the 220V / 50HZ AC voltage into 25KHZ-50KHZ high-frequency high-voltage lighting tube, which has changed the stroboscopic problem of traditional ballasts worki...
Claims
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IPC IPC(8): H05B41/292H05B41/46
Inventor 蔡建文罗慧驰
Owner 广东索正吉华光电照明有限公司