CN2133124Y - Light-regulating, electric-saving ballast for fluorescent lamp - Google Patents
Light-regulating, electric-saving ballast for fluorescent lamp Download PDFInfo
- Publication number
- CN2133124Y CN2133124Y CN 92223621 CN92223621U CN2133124Y CN 2133124 Y CN2133124 Y CN 2133124Y CN 92223621 CN92223621 CN 92223621 CN 92223621 U CN92223621 U CN 92223621U CN 2133124 Y CN2133124 Y CN 2133124Y
- Authority
- CN
- China
- Prior art keywords
- voltage
- fluorescent lamp
- light
- bridge rectifier
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model relates to a light-regulating power-saving ballast for fluorescent lamps, comprising a light-regulating circuit, a voltage-doubling bridge rectifying conversion circuit and an inductor. The 220v ac voltage generates 600v high voltage via the voltage-doubling bridge rectifying conversion circuit to make a lamp tube conducted, and the voltage-doubling bridge rectifying conversion circuit provides operating voltage for the lamp tube, if the capacitance value of the light-regulating circuit is changed, the operating current of the fluorescent lamp can be changed, and thus the light-regulating function is achieved. The light-regulating power-saving ballast for fluorescent lamps is simple in structure, and can conduct light regulation of four baffles whose power conservation are respectively 20%, 45%, 73% and 90%; besides, the lamp tube works under current of less than the rating current for long time, and therefore, the service life can be extended.
Description
The utility model relates to a kind of fluorescent lamp ballast, relates in particular to a kind of fluorescent lamp engery saving ballast with dimming function.
Traditional electric inductance type fluorescent lamp ballast is a core structure, promptly twines enamelled wire and form inductance coil on silicon steel sheet core, soaks then to account for megohmite insulant, forms with the metal shell encapsulation again.After the energized, the ballast inductor coil produces higher induced electromotive force, the instantaneous high pressure pulse occurs, under this pulse electromotive force effect, makes the filament heating of fluorescent lamp two ends and emitting electrons, causes ionized inert gas generation arc light in the fluorescent tube and conducting.This electric inductance type fluorescent lamp ballast volume is big, and Heavy Weight is because the inductive structure so it is high himself to consume energy, generally accounts for about 20% of fluorescent lamp power consumption.For overcoming the inductance type ballast shortcoming, people succeed in developing electric ballast.What adopted though electric ballast has removed core structure is electronic component, has the few advantage of power consumption, but the brightness of fluorescent lamp can not be regulated as required, like this, cause unnecessary waste of energy on the one hand, fluorescent lamp is worked under the rated operational current situation basically, thereby shorten the useful life of fluorescent lamp.
The purpose of this utility model provides a kind of simple in structure, has the fluorescent lamp ballast of dimming function and economize on electricity, to overcome the shortcoming of prior art.
Content of the present utility model is: it is made up of light adjusting circuit 1, multiplication of voltage-bridge rectifier change-over circuit 2 and inductor L, and wherein light adjusting circuit 1 comprises 3 capacitor C
3～C
5With two K switch
2, K
3, C
3～C
5In two electric capacity respectively with K
2, K
3, after the series connection again with all the other 1 electric capacity parallel connections, the two ends after its parallel connection link with 220v AC power one end and multiplication of voltage one bridge rectifier change-over circuit 2 one inputs respectively.Above-mentioned multiplication of voltage-bridge rectifier change-over circuit 2 is by 4 diode D
1～D
4With two capacitor C
1, C
2Form, wherein D
1, D
2And C
1, C
2Constitute voltage doubling rectifing circuit, D
1～D
4Constitute bridge rectifier again, C
1～C
2Two ends after the series connection respectively with D
1And D
3, D
2And D
4Link and locate to connect, 2 liang of inputs of multiplication of voltage one bridge rectifier change-over circuit connect with the light adjusting circuit 1 and the 220v AC power other end respectively, and the one output connects fluorescent lamp F one end through inductor L, another output termination F other end.
Multiplication of voltage in the above-mentioned adjusting brightness of fluorescent lamp engery saving ballast-2 liang of outputs of bridge rectifier change-over circuit are equipped with double-point double-throw switch K
4
Closed mains switch K
1, connect the 220v AC power, during conducting that fluorescent lamp is unignited, D
1, D
2And C
1, C
2The high pressure that the voltage doubling rectifing circuit of forming produces 600v adds to fluorescent lamp F two ends, without the preheating tube filament, fluorescent lamp F is lighted.After fluorescent lamp F lights conducting, the 220v alternating current provides direct-current working volts for lamp tube ends after the bridge rectifier rectification, voltage multiplying rectifier is converted to bridge rectifier, and the keep-alive voltage of fluorescent lamp F is converted to operating voltage, the operation principle of multiplication of voltage that Here it is-bridge rectifier change-over circuit 2.1 step-down metering function of above-mentioned light adjusting circuit when capacitance changes in the light adjusting circuit 1, causes the electric current among the fluorescent lamp F to change thereupon, thereby plays the light modulation effect.Concretely, 3 capacitor C in the light adjusting circuit 1
1～C
3By two K switch
2, K
3Closure and unlatching, form four kinds of different capacitances, the fourth gear brightness of corresponding fluorescent lamp F.Inductor L plays filter action.
Because by lamp tube current is direct current, electronics only from the filament emission of fluorescent tube one end, all is fully used for the ease of the electronics powder in the filament of fluorescent lamp F two ends, and the utility model is equipped with double-point double-throw switch K at the output of bridge rectifier
4, with the both positive and negative polarity of conversion lamp tube ends.When to run into that fluorescent tube is difficult for lighting or an end becomes dark, K
4Can make the conversion of lamp tube ends both positive and negative polarity make fluorescent tube still can continue to use.
The utility model is owing to adopt light adjusting circuit 1, so can regulate fluorescent lamp F brightness as required, thereby fluorescent lamp F was worked under the situation less than rated operational current in considerable time, but prolonging lamp tube useful life is not only compared also with the iron core ballast and can save electric energy greatly.
When light adjusting circuit 1 total capacitance value is 4 μ F, be applicable to the fluorescent lamp F of 20w, 30w and 32w straight tube and pipe all size; When light adjusting circuit 1 total capacitance value is 4.5 μ F or 5 μ F, be applicable to the 40w fluorescent lamp.
Be that example illustrates its economize on electricity situation now with the 30w fluorescent lamp.
The lamp works electric current of measuring four shelves brightness of fluorescent lamp F with the MF-47 type universal meter of Nanjing Watt-hour Meter Factory's production successively is respectively 58mA, 137mA, 252mA and 355mA; Its corresponding lamp works voltage is respectively 65V, 72V, 79V and 18V; Inductor L both end voltage is respectively 0.4V, 1.0V, 2.0V and 2.8V.If fluorescent lamp F and inductor L are approximately electrical resistance property calculating, the brightness of corresponding four shelves of fluorescent lamp F and inductor L power consumption altogether is respectively 3.7W, 10.0W, 20.3W and 29.4W, above result need be compared by power consumption 37W with the 30W fluorescent lamp with the iron core ballast, the ratio of the utility model economize on electricity is very high, as 100, the brightness of its corresponding four shelves economizes on electricity 20%, 45%, 73% and 90% respectively with 37W.
Because voltage doubling rectifing circuit can produce the above high pressure of 600V, the fluorescent lamp F that therefore ballast be housed starts and does not glimmer when working, and near broadcast receiver is not produced interference.In addition, waste fluorescent lamp is utilized again,,, still can continue to use as long as also have the material of emitting electrons even the lamp tube ends filament all breaks.
It is simple in structure, simple installation.
Fig. 1 is the utility model square construction drawing.
Fig. 2 is the utility model electrical schematic diagram.
Fig. 3 is the utility model scheme of installation.
C
1、C
2Be 1 μ F, withstand voltage 630V;
C
3、C
4Be 1 μ F, withstand voltage 500V
D
1～D
4All adopt IN4007
Inductor L direct current resistance is 6～7 Ω.
Make C3With K2Series connection, C5With K3After the series connection again with C4In parallel.
Claims (2)
1, a kind of adjusting brightness of fluorescent lamp engery saving ballast is characterized in that being made up of light adjusting circuit 1, multiplication of voltage-bridge rectifier change-over circuit 2 and inductor L, and wherein light adjusting circuit 1 comprises 3 capacitor C
3～C
5With two K switch
2, K
3, C
3～C
5In two electric capacity respectively with K
2, K
3After the series connection again with all the other 1 electric capacity parallel connections, the two ends after its parallel connection link with 220V AC power one end and multiplication of voltage-bridge rectifier change-over circuit 2 one inputs respectively, described multiplication of voltage-bridge rectifier change-over circuit 2 is by 4 diode D
1～D
4With two capacitor C
1, C
2Form, wherein D
1, D
2And C
1, C
2Constitute voltage doubling rectifing circuit, D
1～D
4Constitute bridge rectifier again, C
1～C
2Two ends after the series connection respectively with D
1And D
3, D
2And D
4Link and locate to connect, multiplication of voltage-2 liang of inputs of bridge rectifier change-over circuit connect with the light adjusting circuit 1 and the 220V AC power other end respectively, and the one output connects fluorescent lamp F one end through inductor L, another output termination F other end.
2, adjusting brightness of fluorescent lamp engery saving ballast according to claim 1 is characterized in that described multiplication of voltage-2 liang of outputs of bridge rectifier change-over circuit are equipped with double-point double-throw switch K
4
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223621 CN2133124Y (en) | 1992-05-30 | 1992-05-30 | Light-regulating, electric-saving ballast for fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223621 CN2133124Y (en) | 1992-05-30 | 1992-05-30 | Light-regulating, electric-saving ballast for fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2133124Y true CN2133124Y (en) | 1993-05-12 |
Family
ID=33769305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92223621 Expired - Fee Related CN2133124Y (en) | 1992-05-30 | 1992-05-30 | Light-regulating, electric-saving ballast for fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2133124Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278723A (en) * | 2011-04-29 | 2011-12-14 | 郭修 | LED power supply device |
| CN108200679A (en) * | 2017-12-18 | 2018-06-22 | 迈迪克(上海)照明科技有限公司 | For the power supply output control circuit of LED illumination System |
-
1992
- 1992-05-30 CN CN 92223621 patent/CN2133124Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278723A (en) * | 2011-04-29 | 2011-12-14 | 郭修 | LED power supply device |
| CN108200679A (en) * | 2017-12-18 | 2018-06-22 | 迈迪克(上海)照明科技有限公司 | For the power supply output control circuit of LED illumination System |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |