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Lamp and drive circuit thereof

A technology for driving circuits and circuits, applied in electric light sources, electrical components, lighting devices, etc., can solve the problems of unfriendly materials, short lifespan, and high amount of ultraviolet light, and achieve the effects of small size, long lifespan, and environmentally friendly materials.

Inactive Publication Date: 2010-10-20
VERTICIL ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in general, HCFL lamps have disadvantages such as short life, large size, unenvironmentally friendly materials, poor luminous efficiency of lamps, and high amount of ultraviolet light generated.

Method used

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  • Lamp and drive circuit thereof
  • Lamp and drive circuit thereof
  • Lamp and drive circuit thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The lamp of this embodiment uses a driving circuit having only a primary side circuit structure to drive a cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp, CCFL).

[0020] Please refer to figure 1 , which shows a block diagram of a lamp according to an embodiment of the present invention. The lamp 1 includes a CCFL FL and a driving circuit 14 . For example, the driving circuit 14 is used for receiving the mains signal Sw. The driving circuit 14 includes an anti-electromagnetic wave interference correction module 14 a , a voltage converter 14 b and a high-voltage frequency conversion converter (Inverter) 16 . The anti-electromagnetic interference module 14a is used for performing anti-electromagnetic wave interference correction on the mains signal Sw to provide an anti-electromagnetic wave interference-corrected power signal Sp. The voltage converter 14b provides a DC voltage signal Svdc according to the power signal Sp. For example, the driving circuit...

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PUM

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Abstract

The invention relates to a lamp and a drive circuit thereof. The lamp comprises a CCFL (Cold Cathode Fluorescent Lamp) and a drive circuit, wherein the drive circuit comprises a first voltage inverter and a high-voltage variable-frequency inverter; the first voltage inverter provides a direct voltage signal according to a power signal; and the high-voltage variable-frequency inverter comprises a second voltage inverter and a transformer, the second voltage inverter inverts the direct voltage signal to generate an alternating voltage signal, and the transformer corresponds to the CCFL and comprises a primary end circuit and a secondary end circuit. The primary end circuit corresponds to the alternating voltage signal and is provided with an input voltage signal; and relative to the input voltage signal, the secondary end circuit generates an output voltage signal through coupling so as to drive the CCFL, wherein the primary en circuit and the secondary end circuit both belong to primary side circuits and receive the same grounding voltage signal.

Description

technical field [0001] The present invention relates to a lamp, and in particular to a lamp using a cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp, CCFL) as a light source. Background technique [0002] In the existing lighting lamp technology, lamps using fluorescent lamps as light sources are widely known, and are widely used in general daily lighting. Generally, existing lighting fixtures use Hot Cathode Fluorescent Lamps (HCFL) as light sources. Generally speaking, however, HCFL lamps have disadvantages such as short lifespan, large size, unenvironmentally friendly materials, poor luminous efficiency of lamps, and high amount of ultraviolet light generated. Therefore, how to effectively design fluorescent lighting fixtures that can effectively improve the aforementioned shortcomings is one of the directions that the industry is constantly working on. Contents of the invention [0003] The object of the present invention is to provide a lamp and its driv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/295H05B41/298
Inventor 江怡诏徐明何
Owner VERTICIL ELECTRONICS CORP
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