CN2172937Y

CN2172937Y - Power converter for multi-tube fluorescent lamps

Info

Publication number: CN2172937Y
Application number: CN 93224722
Authority: CN
Inventors: 朱昭惠
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-23
Filing date: 1993-09-23
Publication date: 1994-07-27
Anticipated expiration: 2003-09-23

Abstract

The utility model relates to a power supply converter for multiple fluorescent lamps, which is composed of two rectifying diodes and three capacitors, wherein, the diodes and the capacitors form a rectification circuit with double voltage; alternating current main power can be converted into direct current with high voltage which is more than 600V used for the starting of the fluorescent lamps. The power supply converter for multiple fluorescent lamps can be used for simultaneously lightening two or three fluorescent lamps; even old fluorescent lamps of which the filaments are broken can be stilled lightened as long as the old fluorescent lamps no not leak gas. The utility model which has the advantages of fast starting, energy saving, no flickering phenomenon and no noise is helpful to increasing the power factor of the whole circuit.

Description

Power converter for multi-tube fluorescent lamps

The utility model is the multi-tube fluorescent lamp supply convertor that is used to light multi-tube fluorescent lamp about a kind of.

Existing fluorescent lamp adopts starter more, inductance type ballast work, and fluorescent tube all needs a cover accessory, simultaneously inductance type ballast exist power consumption high, shortcomings such as noise and power factor are low are arranged, also need expend more metal material, versatility is relatively poor.People have also invented some electronic ballast for fluoresent lamps and have replaced for this reason, but also exist short, the shortcoming of power consumption, circuit complexity in fluorescent tube useful life, generally also can't light multi-tube fluorescent lamp.

The purpose of this utility model provides a kind of multi-tube fluorescent lamp supply convertor, and it has advantages such as circuit is simple, energy-conservation, profit is useless.

Of the present utility modelly be characterised in that it is made of 2 rectifier diodes, 3 electric capacity; The positive pole of the negative pole of one of them diode D1 and another diode D2 joins the back as the input of the electric main live wire of converter, and 2 diode D1, D2, remaining positive and negative electrode respectively are connected in series behind a capacitor C 1, the C2 and connect another input of electric main zero line as converter; 2 common contacts of 2 capacitor C 1, C2 and 2 diode D1, D2 are connected to a shunt capacitance C3 as 2 outputs of converter.

The utility model adopts 2 rectifier diodes, 3 two voltage doubling rectifying circuits that electric capacity constitutes, the 220V electric main can be changed into the above high direct voltage of 600V, thereby be enough to make 2 or 3 fluorescent lamp operate as normal, the process output also meets shunt capacitance C3, can make the operating current of fluorescent tube more stable, the utility model is owing to adopt capacity cell, thereby help to improve the entire circuit power factor, and circuit is simple, energy-conservation, can also utilize fracture of wire not have the useless pipe of gas leakage, not have stroboscopic, noiseless during fluorescent lamp operation.

Accompanying drawing has been described embodiment of the present utility model.

Fig. 1 is circuit theory diagrams of the present utility model.

Among the embodiment of the present utility model, rectification diode D1, D2 can adopt IN4000 series diode, capacitor C 1, C2, withstand voltage with C3 is the polarity free capacitor of 250V, when input inserts 220V interchange city, must distinguish live wire, zero line, live wire connects diode D1 negative pole and the D2 positive pole connects end altogether, what zero line met capacitor C 1 and C2 connects end altogether, other capacitor C 3 and the multi-tube fluorescent lamp that is connected in series, starter S is attempted by diode D1 anodal and capacitor C 1 and diode D2 negative pole and capacitor C 2 these two outputs, in the time of in the fluorescent tube place in circuit, two pin of fluorescent tube end should be combined as a whole.

Claims

1, a kind of multi-tube fluorescent lamp supply convertor is characterized in that it by 2 rectifier diodes, and 3 electric capacity constitute; Wherein, the negative pole of a diode D1 and another diode D2 positive pole join the back as the input of the electric main live wire of converter, and 2 remaining positive and negative the two poles of the earth of diode D1, D2 respectively are connected in series behind a capacitor C 1, the C2 and connect another input as the electric main zero line of converter; Two common contacts of 2 capacitor C 1, C2 and diode D1, D2 are connected to a bypass capacitor C 3 as two outputs of converter.