CN201114929Y

CN201114929Y - Daylight lamp ballast

Info

Publication number: CN201114929Y
Application number: CNU2007201898385U
Authority: CN
Inventors: 陆红兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-18
Filing date: 2007-10-18
Publication date: 2008-09-10
Anticipated expiration: 2017-10-18

Abstract

The utility model provides a fluorescent ballast, consisting of a coil with a center tap, an iron core with an air gap and a capacitor; wherein, one end of the coil is connected with a phase line, while the other end is connected with one pole of a lamp tube, the center tap of the coil is serially connected with a capacitor and connected with the other end of a power zero line and the lamp tube. The fluorescent ballast has the advantages of low voltage for easy striking, long service life of the lamp tube and good universality, etc.

Description

Fluorescent lamp ballast

[technical field]

The utility model relates to a kind of fluorescent lamp ballast.

[background technology]

Present fluorescent lamp ballast mainly contains three kinds: the one, and traditional inductance type ballast has advantages such as safety, life-span are long, but starter is slow and voltage is difficult to starter when low; The 2nd, voltage multiplying rectifier formula ballast, starter is easy, the power consumptive province, but unilateal conduction, fluorescent tube turns black easily, and brightness is not enough; The 3rd, higher-order of oscillation formula electric ballast, starter is easy, the power consumptive province, the efficient height, but cost is also high, and triode damages easily.

[summary of the invention]

The purpose of this utility model is the shortcoming that overcomes prior art, provide that a kind of starting speed is fast, can starter under the low-voltage, safety, long service life, fluorescent lamp ballast that electricity saving performance is good.

Ballast of the present utility model is made up of the iron core and the capacitor of tapped coil, band air gap.One termination power phase line of coil, a utmost point of another termination fluorescent tube, the centre tap capacitor of connecting connects another utmost point of zero-power line and fluorescent tube.

The utlity model has following several advantage:

1, starting time is short, one open promptly bright;

2, (as 160V) still normally starter and work under low voltage;

3, energy prolonging lamp tube service life, and the fluorescent tube of the filament that broken still can use;

4, owing to, also exempted the problem that traditional starter exists without starter;

5, but the fluorescent tube of same ballast adapted different capacity (as 15～80W) uses, brings convenience for production and use.

[description of drawings]

Accompanying drawing is a circuit diagram of the present utility model.

[embodiment]

With reference to accompanying drawing, the utility model is made up of loop A and iron core B and capacitor C.Iron core B is with air gap, loop A band centre tap 2; One end 1 of loop A connects phase line of power, and the other end 3 connects a utmost point of fluorescent tube, and centre tap 2 series capacitor C are access to another utmost point 4 of zero-power line and fluorescent tube.

After the energized, initial instantaneous in energising, electric current produces high pressure at end points 3 from coil 1,2 when the capacitor C loop, start fluorescent lamp work, the tube starting after-current is mainly from coil 1,3 fluorescent tube of flowing through, coil 1,3 plays the effect of current limliting, and capacitor C then works to improve power factor.

Claims

A kind of fluorescent lamp ballast is characterized in that by forming with the iron core (B) and the capacitor (C) of tapped coil (A), band air gap; One end (1) of coil (A) connects the power supply phase line, and the other end (3) connects a utmost point of fluorescent tube, and centre tap (2) series connection one capacitor (C) connects another utmost point (4) of zero-power line and fluorescent tube.