LED (Light Emitting Diode) fluorescent lamp power supply of compatible fluorescent lamp ballast
A technology of LED fluorescent lamps and ballasts, which is applied in the direction of light source, electric light source, and electric lamp circuit layout, etc., can solve the problem that the power supply of LED fluorescent lamps cannot be used directly, and achieve the effect of popularization and convenient use.
Inactive Publication Date: 2012-11-07
LINKUN DONGGUAN SEMICON LIGHTING
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[0006] The technical problem to be solved by the present invention is to provide a LED fluorescent lamp power supply compatible with fluorescent lamp ballasts, which overcomes the defect that the LED fluorescent lamp power supply in the prior art cannot be directly used on the traditional fluorescent lamp tube bracket
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[0022] The present invention will be described in further detail below according to accompanying drawing and embodiment:
[0023] Such as image 3 , Figure 4 , Figure 5 and Figure 6 As shown, the LED fluorescent lamp power supply compatible with fluorescent lamp ballasts of the present invention includes a rectification module, a fluorescent lamp ballast identification module and a power factor correction and constant current control module, the rectification module, the fluorescent lamp ballast identification module and the power factor correction It is connected to the constant current control module in sequence, and the rectifier module is used to convert AC mains power into DC power, and then output the DC power to the fluorescent lamp ballast identification module, and the fluorescent lamp ballast identification module is used to ballast the connected fluorescent lamps The controller distinguishes and outputs the direct current to the power factor correction and con...
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The invention discloses an LED (Light Emitting Diode) fluorescent lamp power supply of a compatible fluorescent lamp ballast. The LED fluorescent lamp power supply comprises a rectifying module, a fluorescent lamp ballast distinguishing module, a power factor correcting and constant current controlling module which are connected orderly. The rectifying module is used to convert alternating current into direct current, and outputs the direct current to the fluorescent lamp ballast distinguishing module. The fluorescent lamp ballast distinguishing module is used to distinguish the connected fluorescent lamp ballast and output the direct current to the power factor correcting and constant current controlling module. The power factor correcting and constant current controlling module is used to correct the power factor and output constant direct current.
Description
technical field [0001] The present invention relates to the technical field of LED fluorescent lamp power supply, in particular to a LED fluorescent lamp power supply compatible with fluorescent lamp ballasts, that is, without removing the starter and ballast on the fluorescent lamp tube bracket, everything on the fluorescent lamp tube bracket can be removed. There is no need to change, it is applicable to the four-terminal input on the fluorescent light tube bracket, and the LED fluorescent lamp power supply that can work normally can be directly installed. Background technique [0002] Such as figure 1 and figure 2 As shown, traditional fluorescent lamps use two types of ballasts, which are inductive (low-frequency) and electronic (high-frequency) ballasts. Since traditional fluorescent lamps need a starter to start, inductive ballasts generate several times The mains high voltage is used to start the fluorescent lamp, and the electronic ballast uses the resonant circui...
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Inventor 廖玉柱
Owner LINKUN DONGGUAN SEMICON LIGHTING