CN2194583Y

CN2194583Y - electronic ballast

Info

Publication number: CN2194583Y
Application number: CN 94209234
Authority: CN
Inventors: 唐安国
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-21
Filing date: 1994-04-21
Publication date: 1995-04-12
Anticipated expiration: 2004-04-21

Abstract

The utility model relates to a ballast for fluorescent lamp comprises casing A and inductor L, and its characterized in that still has the electron that comprises resistance R, diode D and electric capacity C and helps luminance ware B in casing A, and diode D establishes ties with resistance R after parallelly connected with electric capacity C. The utility model discloses with the fluorescent tube adapted back, can reduce the consumption of fluorescent lamp, and the consumption of itself is also lower, simultaneously under the lower condition of voltage, the glow fluorescent lamp is started.

Description

Electronic aid ballast

The utility model relates to a kind of electronic ballast for fluorescent lamps.

When traditional inductance type ballast and fluorescent lamp adapted, the operating current of itself and fluorescent tube is bigger, thereby power consumption is also bigger, is to reduce power consumption, just needs to increase inductance value reducing operating current, but operating current is when being reduced to certain value, and fluorescent lamp is difficult to starter again.Though existing various electric ballast has solved the problems referred to above preferably, used electronic component is more, and structure is complicated, the cost height.

The purpose of this utility model is to provide a kind of power consumption little, and starting voltage electronics low, simple in structure helps the brightness ballast.

The utility model is realized by following technical scheme:

The utility model is made up of housing A, inductor L etc., in housing A, also have by resistance R, diode D, reach the electronics glow-aid machine B that capacitor C is formed, connect with resistance R after diode D and the capacitor C parallel connection, the two ends of inductor L are two joints of this ballast, and the two ends of electronics glow-aid machine B are two joints in addition of ballast.

The utility model has been controlled the electric current of starting state and operating state preferably, and the inductance value increase, the operating current that have solved because of inductor reduce, and make fluorescent tube be difficult to starter; And operating voltage when low fluorescent tube be difficult to the problem of starter.Increase the inductance value of inductance L in this ballast like this, the operating current of fluorescent tube and ballast reduces when making work, can reduce power consumption.

The utility model is simple in structure, power consumption is little, startability is good, and dependable performance.

Description of drawings:

Fig. 1 is a structure principle chart of the present utility model.

Fig. 2 is the schematic diagram of the utility model and two fluorescent tube adapteds.

Below in conjunction with embodiment and accompanying drawing the utility model is further specified.

As shown in Figure 1, electronics glow-aid machine B and inductor L that resistance R, diode D and capacitor C are formed are located in the housing A together, during making, with the inductance value increasing of inductor L.During use, a termination power other end and the filament of inductor L join, and the end of electronics glow-aid machine B joins by the end of filament and inductor L, and the other end of electronics glow-aid machine B connects the filament of the fluorescent lamp other end by starter S.After the energized, enter starting state, during startup, diode D makes the startup loop form unidirectional pulsating current, and this electric current makes the iron core dc magnetization of inductance L, causes core sataration, and then permeability decline descends inductance value, the result that inductance value descends is that starting current increases, and so just can make that fluorescent tube still can obtain bigger starting current when increasing the inductance value of inductor L.For preventing the excessive filament that burns out of electric current, adopt the resistance R current limliting, make inrush current limitation in specified current range.Behind the filament pre-heating, starter S tripping, lamp tube starting enters operating state.Because its inductance value is bigger during inductor L design, the operating current under the operating state is lower like this, thereby has reduced the power consumption of fluorescent tube and ballast.

In the utility model, establish two electronics glow-aid machines, can with two fluorescent tube adapteds, as shown in Figure 2.

Under the lower situation of voltage, according to above-mentioned principle, the utility model still can make fluorescent tube obtain higher starting current, makes tube starting.The capacitor C that is connected in parallel on the diode D plays the effect of protecting diode D, reaches the effect in the negative half period afterflow.

Claims

1, a kind of electronics helps the brightness ballast, form by housing (A), inductor (L), it is characterized in that: in housing (A), also have the electronics glow-aid machine of forming by resistance (R), diode (D) and electric capacity (C) (B), diode (D) is connected with resistance (R) with electric capacity (C) back in parallel, the two ends of inductor (L) are two joints of ballast, and the two ends of electronics glow-aid machine (B) are two joints in addition of ballast.

2, help the brightness ballast according to the described electronics of claim 1, it is characterized in that: an end of inductor during use (L) joins by an end of filament and electronics glow-aid machine (B).