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

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.

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...

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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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