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High-power fluorescent lamp ballast

A high-power fluorescent lamp and ballast technology, which is applied in the field of high-power fluorescent lamp electronic ballasts and high power factor, can solve the problems of grid energy empty consumption, low power, and low power factor of ballasts.

Inactive Publication Date: 2012-03-14
龙德英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the power factor of existing electronic ballasts for ordinary fluorescent lamps is low, generally no more than 0.6, which may easily cause empty energy consumption of the power grid; the power is low, generally no more than 100W, and can only ignite two to three fluorescent tubes at the same time

Method used

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  • High-power fluorescent lamp ballast
  • High-power fluorescent lamp ballast

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Experimental program
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Embodiment Construction

[0011] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] like figure 1 As shown, this high-power fluorescent lamp ballast includes an EMI filter, a full-bridge rectifier D1, a passive power factor correction circuit, a high-frequency inverter circuit and an LC series resonant circuit connected in sequence, and the output terminal of the high-frequency inverter circuit passes through LC series resonant circuit ignites one or more fluorescent tubes.

[0013] The composition and connection relationship of the circuit described in detail below.

[0014] ① EMI filter

[0015] C1 and L1 form an EMI filter, and both ends of C1 are connected to transformer L1, and L1 is connected to the input end of full-bridge rectifier D1.

[0016] ②Full bridge rectifier D1

[0017] The full-bridge rectifier D1 is composed of four 1N5399 diodes, which converts AC power into DC and outputs it to the following circuits.

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PUM

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Abstract

The invention discloses a high-power fluorescent lamp ballast, comprising an EMI (Electro Magnetic Interference) filter, a rectifying circuit, a passive power factor correcting circuit, a high frequency inverter circuit and an LC (Inductance / Capacitance) series resonance circuit which are sequentially connected. Power of the electronic ballast can reach up to 1100W, multiple T8 / 36W common fluorescent tubes can be ignited at the same time and is especially applicable to occasions requiring lighting of more than ten or dozens of fluorescent lamps at the same time, such as market, factory, office and the like.

Description

technical field [0001] The invention relates to an electronic ballast for fluorescent lamps with high power factor and high power. Background technique [0002] At present, the existing electronic ballasts for ordinary fluorescent lamps have a low power factor, generally no more than 0.6, which is likely to cause empty energy consumption in the grid; low power, generally no more than 100W, can only ignite two to three fluorescent tubes at the same time. In office buildings, factory workshops, large shopping malls, supermarkets, school classrooms and other places, often a dozen or even dozens of fluorescent lamps are needed to meet the lighting requirements. If a high-power electronic ballast with a power factor exceeding 0.9 can be developed to ignite dozens of fluorescent lamps at the same time, the cost of users can be significantly reduced, and power energy can be saved at the same time. Contents of the invention [0003] The invention mainly studies and designs an ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/295
Inventor 龙德英
Owner 龙德英