LED (Light Emitting Diode) fluorescent lamp and fluorescent lamp connecting circuit
A technology of LED fluorescent lamps and LED lamp groups, which is applied in the direction of electric lamp circuit layout, circuit layout, light source, etc., and can solve the problems of wasting resources and increasing costs
Inactive Publication Date: 2013-02-27
刘昌贵
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Problems solved by technology
[0011] Since fluorescent lamps have been widely used in daily life, brackets, lamp panels and peripheral circuits specially designed for fluorescent lamps have already been deployed in large quantities. If the peripheral circuits of fluorescent lamps that have been formed are changed in order to use LED fluorescent lamps, it will increase a lot of cost. , and waste a lot of resources
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[0081] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0082]An LED fluorescent lamp provided by the present invention includes an LED fluorescent tube, the LED fluorescent tube includes a first end cover and a second end cover, and the first end cover and the second end cover respectively include two pins, Inside the LED fluorescent tube, a first bridge rectifier circuit is connected in parallel between the two pins of the first end cap and a second bridge is connected in parallel between the two pins of the second end cap type rectifier circuit, and a first inductor is connected in series between one pin of the first end cap and one pin of the second end cap, and the other pin of the first end cap is connected to A second inductor is connected in series between the other pins of the second end cap, and the output terminals of th...
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The embodiment of the invention discloses an LED (Light Emitting Diode) fluorescent lamp and a fluorescent lamp connecting circuit, wherein the LED fluorescent lamp comprises an LED fluorescent lamp tube which comprises a first end cover and a second end cover; the first end cover and the second end cover respectively include two pins; a first bridge type rectifier circuit and a second bridge type rectifier circuit are respectively connected between the pins of the first end cover and the second end cover in parallel; a first inductor is connected between one pin of the first end cover and one pin of the second end cover in series; output ends of the first bridge type rectifier circuit and the second bridge type rectifier circuit are connected with an LED lamp group in parallel; and the LED lamp group comprises an LED light source group and a circuit for providing a constant current or a constant voltage. By using the invention, the fluorescent lamp can be replaced by the LED fluorescent lamp without changing a peripheral circuit of the traditional fluorescent lamp.
Description
technical field [0001] The invention relates to the LED field, in particular to an LED fluorescent lamp and a fluorescent lamp connection circuit. Background technique [0002] Among traditional lighting sources, straight tube fluorescent lamps and circular fluorescent lamps have been widely used in commercial lighting, office lighting and home lighting. Such as figure 1 Shown is a circuit diagram of a common fluorescent lamp. Such as figure 1 As shown, a common fluorescent lamp circuit includes an electronic ballast and a fluorescent tube, and the mains power (that is, commonly referred to as alternating current) is input from the input end of the electronic ballast, and the two outputs are output after conversion by the electronic ballast. There are two DC signals, wherein one DC signal is simultaneously input to the two-pin input terminals of one end cover of the fluorescent lamp, and the other DC signal is simultaneously input to the two-pin input terminals of the oth...
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IPC IPC(8): F21S2/00F21V23/02F21V23/04F21V23/06H05B37/02F21Y101/02F21K9/278F21Y115/10
Inventor 刘昌贵
Owner 刘昌贵