LED (light emitting diode) daylight lamp and connecting circuit thereof

Abstract

The embodiment of the invention discloses an LED (light emitting diode) daylight lamp and a connecting circuit thereof, wherein the LED daylight lamp comprises an LED daylight lamp tube which comprises a first end cover and a second end cover; the first end cover and the second end cover are 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; a first capacitor is connected in series between one pin of the first end cover and one pin of the second end cover; and the output end of the first bridge-rectifier circuit and the output end of the second bridge-rectifier circuit are connected with an LED lamp set in parallel, and the LED lamp set comprises an LED light source set and a circuit for providing constant currents and constant voltages. By adopting the LED daylight lamp and the connecting circuit thereof, a fluorescent lamp can be directly replaced by the LED daylight lamp under the condition of unchanging the peripheral circuit of the traditional fluorescent lamp.

Description

technical field [0001] The present invention relates to the field of LEDs, in particular to an LED fluorescent lamp and a fluorescent lamp connection circuit. Background technique [0002] Among the traditional lighting sources, straight tube fluorescent lamps and ring fluorescent lamps have been widely used in commercial lighting, office lighting and home lighting. like figure 1 and figure 2 Shown are the circuit diagrams of two common fluorescent lamps at present. like figure 1 As shown, the first common fluorescent lamp circuit includes an inductive ballast, a fluorescent tube and a starter S mounted on the starter base Y, and the mains (aka alternating current) is supplied from the inductive ballast One end of the device and one end of the fluorescent lamp are input at the same time. like figure 2 As shown, a second common fluorescent lamp circuit replaces the magnetic ballast in the first mode with an electronic ballast. [0003] In terms of light efficiency, f...

AI Technical Summary

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

Images