CN2207685Y - Socket electronic ballast - Google Patents
Socket electronic ballast Download PDFInfo
- Publication number
- CN2207685Y CN2207685Y CN 94230124 CN94230124U CN2207685Y CN 2207685 Y CN2207685 Y CN 2207685Y CN 94230124 CN94230124 CN 94230124 CN 94230124 U CN94230124 U CN 94230124U CN 2207685 Y CN2207685 Y CN 2207685Y
- Authority
- CN
- China
- Prior art keywords
- capacitor
- triode
- circuit
- resistance
- fluorescent lamp
- 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 fluorescent lamp ballast which comprises a radio frequency repression circuit, a bridge rectifier circuit, a power factor correction circuit and an inverter circuit which are connected orderly. Meanwhile, the inverter circuit is connected with a fluorescent lamp via an abnormal protection circuit and a current peak damping circuit. The utility model is installed in fluorescent lamp sockets in pairs and is used for starting the fluorescent lamp. The utility model has the advantages of simple structure, low cost, small volume, electricity saving and good starting effect.
Description
The utility model relates to a kind of glimmering lamp ballast.
Existing fluorescent lamp ballast mainly is an Inductive ballast, the necessary supporting starter of the fluorescent lighting fixture that Inductive ballast is formed also needs allocating power factor building-out capacitor in order to improve power factor, and its structure is comparatively complicated, Heavy Weight, power consumption are big, starter difficulty when low temperature or low-voltage.
It is a kind of simple in structure that the purpose of this utility model is to provide, without starter and power factor compensation capacitance and can be under the low temperature low voltage condition female type electric ballast of starter.
For reaching above-mentioned purpose; the utility model has adopted a kind of female type electric ballast; it is installed in the fluorescent lamp female type shell; this female type electric ballast; by radio frequency inhibition, bridge rectifier and power factor correction; inverter circuits etc. are connected successively, and inverter circuit is connected with fluorescent lamp with the current peak antihunt circuit by abnormity protection circuit simultaneously, and its radio frequency suppresses circuit by filter inductance L
2Capacitor C
10And connect and be connected to D, E 2 points on the bridge rectifier, diode V
11With filament F
2And connect the back and resistance R
7, capacitor C
8Serial connection is connected to a C and B
2Capacitor C
7With diode V
12 and connect after be connected to an A
2With a C, diode V
13Two ends are connected on C and G respectively
2The point on.Circuit of power factor correction is by diode V
1And capacitor C
1Be connected to A after the serial connection
1And G
1On the point, diode V
3And capacitor C
2Be serially connected with A
1And G
1On, diode V
2Two ends be connected to a, b 2 points respectively, inverter circuit is by resistance R
1An end, capacitor C
4One end and triode V
4Collector electrode be attempted by an A
1On, resistance R
1The other end and capacitor C
3An end, capacitor C
4The other end and triode V
5Collector electrode be connected on the d point resistance R simultaneously
5, capacitor C
5With winding N
1Be connected to a d and triode V after the serial connection
4Base stage, resistance R
6, capacitor C
6With winding N
2Be connected in series and be connected to a G
1With triode V
5Base stage, diode V
6And V
7Be connected in series and be connected to a d and triode V
4Base stage, diode V
8And V
9Be connected in series and be connected to a G
1With triode V
5Base stage, triode V
10With filament F
1And after connecing again with choke L
1And winding N
3Serial connection is connected to a d and some B
1Resistance R
3Two ends are connected to a d and triode V respectively
4Emitter, resistance R
4Two are terminated at a G
1With triode V
5Emitter.
The advantage of female type electric ballast of the present utility model is: (1) is simple in structure, in light weight, and it is convenient to install and change; (2) integrated cost is low, power saving, and starter is effective; (3) the starter fluorescent lamp can be at subzero 20～40 ℃, and starting voltage can be at 100 volts～240 volts, and (4) prevent the fluorescent tube blackening, the useful life of prolonging lamp tube.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the block diagram of female type electric ballast of the present utility model.
Fig. 2 is the electrical schematic diagram I of female type electric ballast of the present utility model.
Fig. 3 is the electrical schematic diagram II of female type electric ballast of the present utility model.
By Fig. 1～Fig. 3 as can be known; the utility model has adopted a kind of female type electric ballast; it is installed in the socket of fluorescent lamp; this female type electric ballast; by radio frequency inhibition, bridge rectifier and power factor correction; inverter circuits etc. are connected successively, and inverter circuit is connected with fluorescent lamp with the current peak antihunt circuit by abnormity protection circuit simultaneously, and its radio frequency suppresses circuit by filter inductance L
2Capacitor C
10And connect and be connected to D, E 2 points on the bridge rectifier, diode V
11With filament F
2And connect the back and resistance R
7, capacitor C
8Serial connection is connected to a C and B
2Capacitor C
7With diode V
12And be connected to an A after connecing
2With a C, diode V
3Two ends are connected on C and G respectively
2The point on.Circuit of power factor correction is by diode V
1And capacitor C
1Be connected to A after the serial connection
1And G
1On the point, diode V
3And capacitor C
2Be serially connected with A
1And G
1On, diode V
2Two ends be connected to a, b 2 points respectively, inverter circuit is by resistance R
1An end, capacitor C
4One end and triode V
4Collector electrode be attempted by an A
1On, resistance R
1The other end and capacitor C
3An end, capacitor C
4The other end and triode V
5Collector electrode be connected on the d point resistance R simultaneously
5, capacitor C
5With winding N
1Be connected to a d and triode V after the serial connection
4Base stage, resistance R
6, capacitor C
6With winding N
2Be connected in series and be connected to a G
1With triode V
5Base stage, diode V
6And V
7Be connected in series and be connected to a d and triode V
4Base stage, diode V
8And V
9Be connected in series and be connected to a G
1With triode V
5Base stage, triode V
10With filament F
1And after connecing again with choke L
1And winding N
3Serial connection is connected to a d and some B
1Resistance R
3Two ends are connected to a d and triode V respectively
4Emitter, resistance R
4Two are terminated at a G
1With triode V
5Emitter.
By Fig. 2, Fig. 3 as can be known, the electrical schematic diagram of female type electric ballast is partly formed by two.Its mid point A
1With an A
2, the some B
1With a B
2, the some G
1With a G
2Need couple together respectively, at this moment Fig. 2 and Fig. 3 become an intactly female type electric ballast with regard to two combine into one, and it is to suppress circuit, line power factor correcting circuit, compositions such as bridge rectifier and various protective circuits by inverter circuit, radio frequency.
220 volt of 50 He Zhi alternating current is by filter inductance L
2And capacitor C
10The radio frequency of forming suppresses circuit and C
1And C
2Two electric capacity and diode V
1, V
2And V
3The line power factor correcting circuit of forming will obtain the operating voltage of about 230～250 volts of direct voltages as inverter circuit.Its inverter circuit is by two triode V
4And V
5Pulse transformer T, choke L
1And capacitor C
8Deng composition.Be used for preheat fluorescent lamp filament F
1And F
2, and starting current is provided, and provide higher high frequency voltage to fluorescent lamp simultaneously, guarantee the fluorescent lamp starter is lighted the while after the fluorescent lamp starter is lighted, provide the rated current of keeping operate as normal to fluorescent lamp, guarantee that fluorescent lamp has certain illumination.
Its resistance R
1And R
2The biasing circuit that constitutes is given triode V
5Bias current is provided, makes triode V
5At first conducting, at this moment 230～250 volts of direct currents are through capacitor C
7, fluorescent lamp one end filament F
2, resistance R
7, fluorescent lamp other end filament F
1, choke L
1, winding N
3, triode V
5Collector emitter knot (CE knot) and resistance R
4To capacitor C
8Charging.Because magnetic flux coupling and the N of pulse transformer T
1And N
2Two windings are anti-phase, N
1And N
3The phase relation of two winding homophases, triode V
5After the conducting, because winding N
2The induced potential of last generation can make triode V
5Become negative bias by positively biased, so triode V
5Become from conducting and to end.Meanwhile, because winding N
1The induced potential of last generation can make triode V
4Become positively biased by negative bias, so triode V
4Become conducting from ending.Triode V
4After the conducting, capacitor C
8Through resistance R
7Fluorescent lamp one end filament F
1, capacitor C
5, triode V
4Collector emitter knot (CE knot), resistance R
3, winding N
3, choke L
1Fluorescent lamp other end filament F
2Discharge.With V
4And V
5Two triode one after the others ground conductings or capacitor C when ending
8Also carry out to one after the other charge or discharge.Choke L thus
1And capacitor C
8Deng the series resonant circuit generation resonance of forming, its resonance frequency is mainly by choke L
1And capacitor C
8Decision.Capacitor C
8On resonance potential follow it constantly to discharge and recharge can be more and more higher.Work as capacitor C
8On high-frequency resonant voltage when reaching the starting voltage of fluorescent tube, fluorescent tube is promptly lighted by starter.At this moment choke L
1And capacitor C
8To be in the off resonance state, capacitor C Deng the series resonant circuit of forming
8Suitable resistance and R
7Go out end with fluorescent tube again after the serial connection and connect.Choke L
1The current work of restriction fluorescent tube is in rated condition.
In addition, capacitor C
4Be phase compensation electric capacity, improve the distortion of output signal and improve the efficient of output, diode V
6, V
7, resistance R
5With diode V
8, V
9, resistance R
6Be respectively V
4And V
5The protective circuit of the base emitter junction that triode is two (BE knot).V
10And V
11Two of diodes are respectively with the filament F at fluorescent tube two ends
1And F
2And connect, mainly be that current peak is played damping action, protection fluorescent tube two ends are difficult for blackout, prolonging lamp tube useful life.R
3And R
4Two resistance are respectively V
4And V
5The Current Negative Three-Point Capacitance resistance of two triodes, they are to V
4, V
5Certain adjusting and protective effect are arranged.The winding N of pulse transformer T
1And N
2On respectively the serial connection capacitor C
5And C
6, can make the resonance time-delay of inverter output loop, thereby give the filament F of the lamp tube ends that is connected in series with series resonant circuit
1And F
2Is provided certain warm-up time.
Claims (1)
1, a kind of female type electric ballast; form by fluorescent lamp and fluorescent lamp socket etc.; it is characterized in that: be connected successively by radio frequency inhibition, bridge rectifier and power factor correction, inverter circuit etc.; inverter circuit is connected with fluorescent lamp with the current peak antihunt circuit by abnormity protection circuit simultaneously, and its radio frequency suppresses circuit by filter inductance L
2With capacitor C
10And connect and be connected to D, E 2 points on the bridge rectifier, diode V
11With filament F
2And connect the back and resistance R
7, capacitor C
8Serial connection is connected to a C and B
2The power factor emphasizer circuit is by diode V
1And capacitor C
1Be connected to A
1And G
1On the point, diode V
3And capacitor C
2Be serially connected with A
1And G
1On, diode V
2Two ends be connected to a, b 2 points respectively, inverter circuit is by resistance R
1An end, capacitor C
4One end and triode V
4Collector electrode be attempted by an A
1On, resistance R
1The other end and capacitor C
3An end, capacitor C
4The other end and triode V
5Collector electrode be connected on the d point resistance R simultaneously
5, capacitor C
5With winding N
1Be connected to a d and triode V after the serial connection
4Base stage, resistance R
6, capacitor C
6With winding N
2Be connected in series and be connected to a G
1With triode V
5Base stage, diode V
8And V
9Be connected in series and be connected to a G
1With triode V
5Base stage, triode V
1With filament F
1And after connecing again with choke L
1And winding N
3Serial connection is connected to a d and some B
1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230124 CN2207685Y (en) | 1994-09-01 | 1994-09-01 | Socket electronic ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230124 CN2207685Y (en) | 1994-09-01 | 1994-09-01 | Socket electronic ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207685Y true CN2207685Y (en) | 1995-09-13 |
Family
ID=33842305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94230124 Expired - Fee Related CN2207685Y (en) | 1994-09-01 | 1994-09-01 | Socket electronic ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207685Y (en) |
-
1994
- 1994-09-01 CN CN 94230124 patent/CN2207685Y/en not_active Expired - Fee Related
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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 |