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Electronic ballast used for fluorescent lamp

A technology for electronic ballasts and fluorescent lamps, applied in the field of fluorescent lamps, can solve problems such as flickering and fluorescent lamps not working normally, and achieve the effect of improving flickering

Inactive Publication Date: 2018-08-03
河南北瑞电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing fluorescent lamps are in use, if they encounter voltage changes, they will flicker, so that the fluorescent lamps cannot work normally. The existing electronic rectifiers cannot solve the above problems

Method used

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  • Electronic ballast used for fluorescent lamp

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Embodiment Construction

[0009] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0010] Such as figure 1 As shown, the present invention discloses an electronic ballast for fluorescent lamps, which includes a rectification filter circuit, a drive circuit and a filament. The rectification filter circuit adopts a bridge rectifier circuit VD1, and the input end of the bridge rectifier circuit VD1 is connected to an AC power source Vin , the first output terminal of the bridge rectifier circuit VD1 is connected to the second output terminal of the bridge rectifier circuit VD1 through the firs...

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Abstract

The invention discloses electronic ballast used for a fluorescent lamp. The electronic ballast comprises a rectifying and filtering circuit, a driving circuit and filaments, wherein the rectifying andfiltering circuit adopts a bridge type rectifying circuit, and an output end of the bridge type rectifying circuit is connected with the driving circuit; the driving circuit comprises a first triode,a second triode and a transformer, a first winding of the transformer is connected with the first triode, a second winding of the transformer is connected with the second triode, a third winding of the transformer is connected with the lower filament by means of a choking coil, the lower filament is connected with the upper filament by means of a capacitor, and the upper filament RL2 is connectedwith the output end of the bridge type rectifying circuit. The electronic ballast can improve the phenomenon of flickering of the fluorescent lamp, and ensure that the fluorescent lamp can maintain stable and normal illumination during the period of voltage change.

Description

technical field [0001] The invention relates to the field of fluorescent lamps, in particular to an electronic ballast for fluorescent lamps. Background technique [0002] Electronic ballast refers to electronic equipment that uses electronic technology to drive electric light sources to produce the required lighting. Electronic ballasts have the advantages of lightness and compactness. At the same time, Dianzi ballasts also have the function of starters. Has been widely used. When the existing fluorescent lamp is in use, if it encounters a voltage change, it will flicker, so that the fluorescent lamp cannot work normally. The existing electronic rectifier cannot solve the above problems. Contents of the invention [0003] The purpose of the present invention is to provide an electronic ballast for fluorescent lamps, which can improve the flickering phenomenon of fluorescent lamps, thereby ensuring that the fluorescent lamps can work normally when the voltage changes. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/14
CPCH05B41/14
Inventor 常胜
Owner 河南北瑞电子科技有限公司