LED (light emitting diode) fluorescent lamp and fluorescent lamp connecting circuit

A technology of LED fluorescent lamps and LED lamp groups, applied in the LED field, can solve problems such as wasting resources and increasing costs, and achieve good adjustment effects

CN102155645BInactive Publication Date: 2013-02-27刘昌贵
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2013-02-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The embodiment of the invention discloses an LED (light emitting diode) fluorescent lamp and a fluorescent lamp connecting circuit, 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 comprise two pins, a first bridge rectifier circuit and a second bridge rectifier circuit are respectively connected in parallel between the pins of the first end cover and the second end cover, the output ends of the first bridge rectifier circuit and the second bridge rectifier circuit are connected in parallel with an LED lamp bank which comprises an LED light source group and a circuit which is used for providing constant current or constant voltage for the LED light source group, a first capacitor is connected in series between the input end of the LED lamp bank and a pin of the second end cover, and a second capacitor is connected in series between the output end of the LED lamp group and a pin of the first end cover. By adopting the LED fluorescent lamp and the fluorescent lamp connecting circuit, a fluorescent lamp is directly replaced by the LED fluorescent lamp under the condition that a peripheral circuit of a traditional fluorescent lamp is not changed.
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Description

Technical field

[0001] The invention relates to the field of LEDs, in particular to LED fluorescent lamps and fluorescent lamp connection circuits. 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 and figure 2 Shown are the circuit diagrams of two common fluorescent lamps. Such as figure 1 As shown, the first common fluorescent lamp circuit includes an inductive ballast, a fluorescent tube, and a starter S installed on the starter seat Y. The mains (commonly known as alternating current) is flowed from the inductive ballast. One end of the receiver and one end of the fluorescent lamp are simultaneously input. Such as figure 2 As shown, the second common fluorescent lamp circuit replaces the magnetic ballast in the first method with an electronic ballast.

[0003] In terms of light efficiency, fluoresce...

Examples

Embodiment Construction

[0081] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with 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, the first end cover and the second end cover each 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 cover and a second bridge is connected in parallel between the two pins of the second end cover Rectifier circuit, the output ends of the first bridge rectifier circuit and the second bridge rectifier circuit are connected in parallel with an LED lamp group, the LED lamp group includes an LED light source group and is used to provide a constant current to the LED light source group Or a constant voltage circuit, a fi...