CN2251857Y - Electronic energy-saving ballast - Google Patents

Abstract

The utility model relates to an efficient electronic energy-saving ballast which belongs to the technical field of lighting. The utility model has the novel technical proposal which is presented for solving the disadvantages of complicated structure and high cost of a circuit of the existing electronic ballast. The utility model is mainly characterized in that the ballast is composed of a capacitor voltage booster circuit and a diode rectification drive circuit. The utility model has the advantages of simple structure, low cost, fast turn-on speed, no flicker, no AC noise, conspicuous power saving effect and long service life; the utility model used for improving the old electronic ballast has high socioeconomic performance.

Description

The efficent electronic Energy-saving ballast

The utility model relates to a kind of fluorescent lamp ballast, relates in particular to a kind of efficent electronic Energy-saving ballast.

The most employing of the fluorescent lamp lighting light fixture of present domestic use is made up of instrument transformer, starter, fluorescent tube and lamp bracket, this fluorescent lamp is compared incandescent lamp and is had the luminous efficiency height, advantages such as power saving, but this fluorescent lamp has frequent flicker when turning on light and with sound, and the long-time flicker of fluorescent tube damages easily, on the other hand because instrument transformer has a kind of AC noise later on by alternating current, this hum causes the tired uneasiness of making an uproar of user easily, also causes the normal use of other household electrical appliances (as television set) easily.Along with mutual inductance type fluorescent lamp problem constantly occurs, electric ballast has produced, as a kind of electric ballast (ZL94214416.3), opening speed was fast, energy-efficient when this electric ballast used, long service life, but this circuit of electronic ballast complexity, cost height, the tube filament later fluorescent tube that broken just is done for, and the utilance of fluorescent tube is lower.

The purpose of this utility model just is to provide a kind of circuit simple, and components and parts are few, and opening speed is fast, flicker free, and power savings is obvious, a kind of efficent electronic Energy-saving ballast that the fluorescent tube filament can also use after having lacked as usual.

For achieving the above object, the utility model is achieved in that this efficent electronic Energy-saving ballast is made up of booster circuit and rectification drive circuit.Booster circuit is by two capacitor C ₂, C ₃With diode D ₂Be together in series, in capacitor C ₂With diode D ₂The two ends that are connected are parallel with by capacitor C ₁With diode D ₃The circuit of series connection.The rectification drive circuit is diode D in booster circuit ₂, D ₃The two ends that are connected are connected to diode D respectively ₁, D ₄

The utility model has the advantages that: simple in structure, components and parts are few, and job stability is strong, and are high temperature resistant, and starting resistor is low, and efficient electricity-saving does not have the noise of interchange, and noiseless to other household electrical appliances, waste fluorescent lamp can also be reused.

The drawing explanation:

Accompanying drawing is the utility model electricity principle schematic.

Now in conjunction with a specific embodiment the utility model is described further: booster circuit is by capacitor C ₂, diode D ₂And capacitor C ₃The formation that is together in series successively ac input circuit is in capacitor C ₂With diode D ₂The two ends that are in series are parallel with by capacitor C ₁With diode D ₃The branch road of series connection is in capacitor C ₁, C ₂, and diode D ₂, D ₃Two diodes connect from beginning to end in the loop of being formed.The rectification drive circuit is diode D in booster circuit ₂, D ₃The two ends that are connected (are D ₂Negative and D ₃Positive number) be connected to diode D respectively ₁, D ₄, diode D ₁, D ₂, D ₃, D ₄Be attempted by the two ends of fluorescent tube G by joining end to end.

Operation principle: when alternating current is on the positive half cycle when negative just down, capacitor C ₁, C ₂, C ₃By rectifier diode D ₁, D ₃, D ₄Charging also makes lamp tube ends obtain direct voltage, and its charge circuit is C ₂→ D ₁→ D ₄→ D ₃→ C ₃Another road is: C ₁→ D ₃→ C ₃When alternating current is just to go up under the negative half period when negative, because capacitor C ₁, C ₂, C ₃The voltage at two ends can not suddenly change, and makes capacitor C ₂, C ₃The voltage and the power source voltage at two ends stack up, and obtain one later on than higher direct voltage through diode rectification.The reverse charge loop is: C ₃→ D ₂→ D ₁→ D ₄→ C ₁Exchanging starting voltage can work as usual at 140V.

Can prevent capacitor C if connect diode at interchange input two ends ₁, C ₂, C ₃Outwards discharge.

Claims (3)

1. an efficent electronic Energy-saving ballast belongs to lighting technical field, it is characterized in that, this efficent electronic Energy-saving ballast is made up of booster circuit and rectification drive circuit.

2. a kind of efficent electronic Energy-saving ballast as claimed in claim 1, it is characterized in that: booster circuit is by capacitor C ₂, C ₃With diode D ₂Be together in series, in capacitor C ₂With diode D ₂The two ends that are connected are parallel with by capacitor C ₁With diode D ₃The circuit of series connection.

3. a kind of efficent electronic Energy-saving ballast as claimed in claim 2 is characterized in that: the rectification drive circuit is diode D in booster circuit ₂, D ₃The two ends that are connected are connected to diode D respectively ₁, D ₄