CN2528187Y - Electronic ballast - Google Patents
Electronic ballast Download PDFInfo
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- CN2528187Y CN2528187Y CN 02206922 CN02206922U CN2528187Y CN 2528187 Y CN2528187 Y CN 2528187Y CN 02206922 CN02206922 CN 02206922 CN 02206922 U CN02206922 U CN 02206922U CN 2528187 Y CN2528187 Y CN 2528187Y
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Abstract
An electronic ballast relates to a circuit or equipment for lighting or controlling an electric discharge lamp, wherein, an anti-interference circuit is connected with a rectification and filter circuit; the rectification and filter circuit is connected with high-frequency oscillation circuit for trigger switch; the high-frequency oscillation circuit for trigger switch is connected with a resonance circuit in series; the resonance circuit in series is connected with a preheat starting circuit, and the preheat starting circuit is connected with a lighting tube. In views of the preheat starting circuit, one end of a leading-out wire of two groups of filaments of the lighting tube is connected with a blocking capacitance, an inductance and a resonance capacitance. The utility model is characterized in that the other end of the leading-out wire of two groups of filaments of the lighting tube is connected with an intelligent resistance to ensure complete reheating of the filament and start up the lighting tube under lower pressure to lengthen service life of the lighting tube; the intelligent resistance can lengthen the service life of the ballast and avoid idle work of the filament. Therefore, the utility model has the advantages of reducing power consumption, improving lighting effect and decreasing the heating of the filament and the system, resulting in high reliability and adaptation to various fluorescent lights.
Description
Technical field the utility model relates to circuit or the equipment that is used for discharge lamp igniting or control, says it is a kind of electric ballast in detail.
We know background technology, existing electric ballast, a kind of is that anti-jamming circuit connects current rectifying and wave filtering circuit, current rectifying and wave filtering circuit connects the trigger switch high-frequency oscillating circuits, the trigger switch high-frequency oscillating circuits connects series resonant circuit, and series resonant circuit connects start-up circuit, and start-up circuit connects fluorescent tube, start-up circuit is that two groups of filament lead wire one ends of fluorescent tube connect capacitance, inductance, and two groups of filament lead wire other ends of fluorescent tube connect startup electric capacity.This electric ballast, the without preheating function can only hard reboot, has shortened fluorescent tube useful life.Another kind is that anti-jamming circuit connects current rectifying and wave filtering circuit, current rectifying and wave filtering circuit connects the trigger switch high-frequency oscillating circuits, the trigger switch high-frequency oscillating circuits connects series resonant circuit, series resonant circuit connects preheat starting circuit, preheat starting circuit connects fluorescent tube, preheat starting circuit is that two groups of filament lead wire one ends of fluorescent tube are connected with capacitance, inductance, resonant capacitance, and two groups of filament lead wire other ends of fluorescent tube connect the piezo-resistance and the thermistor of series connection.This electric ballast, piezo-resistance self life-span is short, and with the compound cost height of thermistor, after the fluorescent tube operate as normal, preheat starting circuit still has electric current to pass through, and consumes idle work, and power consumption is big, filament and system's temperature rise, poor reliability.Another kind is that anti-jamming circuit connects current rectifying and wave filtering circuit, current rectifying and wave filtering circuit connects the trigger switch high-frequency oscillating circuits, the trigger switch high-frequency oscillating circuits connects series resonant circuit, series resonant circuit connects preheat starting circuit, preheat starting circuit connects fluorescent tube, preheat starting circuit is that two groups of filament lead wire one ends of fluorescent tube are connected with capacitance, inductance, resonant capacitance, and two groups of filament lead wire other ends of fluorescent tube are connected with thermistor.This electric ballast, after the fluorescent tube operate as normal, preheat starting circuit still has electric current to pass through, and consumes idle work, and the thermistor power consumption is big, filament and system's temperature rise, poor reliability.
The technical problem that summary of the invention the utility model solves is, the workout cost height, and after the fluorescent tube operate as normal, preheat starting circuit still has electric current to pass through, and consumes idle work, and power consumption is big, filament and system's temperature rise, fluorescent tube and electric ballast short problem in useful life.
The technical solution of the utility model is, anti-jamming circuit connects current rectifying and wave filtering circuit, current rectifying and wave filtering circuit connects the trigger switch high-frequency oscillating circuits, the trigger switch high-frequency oscillating circuits connects series resonant circuit, series resonant circuit connects preheat starting circuit, preheat starting circuit connects fluorescent tube, preheat starting circuit is that two groups of filament lead wire one ends of fluorescent tube are connected with capacitance, inductance, resonant capacitance, its primary structure characteristics are that two groups of filament lead wire other ends of fluorescent tube are connected with intelligent electric resistance.
Beneficial effect of the present utility model is, because two groups of filament lead wire other ends of fluorescent tube are connected with intelligent electric resistance, can fluorescent tube be started under lower voltage to the abundant preheating of filament, thus the useful life of prolonging lamp tube and electric ballast; Intelligent electric resistance can still can keep performance constant by the switch hundreds of thousands, can prolong the useful life of ballast; After fluorescent tube changed operate as normal over to, intelligent electric resistance can cut off the filament path fully, made filament no longer consume idle work, both can reduce power consumption, can improve light efficiency again, can also reduce filament and system's temperature rise, the unfailing performance height.The utility model is applicable to various fluorescent lamps.
Description of drawings Fig. 1 is a block diagram of the present utility model, and Fig. 2 is the schematic diagram of a kind of execution mode of the present utility model.
Execution mode as shown in Figure 1, anti-jamming circuit 1 connects current rectifying and wave filtering circuit 2, current rectifying and wave filtering circuit 2 connects trigger switch high-frequency oscillating circuits 3, trigger switch high-frequency oscillating circuits 3 connects series resonant circuit 4, series resonant circuit 4 connects preheat starting circuit 5, preheat starting circuit 5 connects fluorescent tube D, preheat starting circuit 5 is two groups of filament lead wire one ends and capacitance C6 of fluorescent tube D, inductance L 2, resonant capacitance C5 is connected, two groups of filament lead wire other ends of fluorescent tube D are connected with intelligent electric resistance ZD, intelligent electric resistance ZD can be to the abundant preheating of filament, fluorescent tube is started, useful life that can prolonging lamp tube under lower voltage; Intelligent electric resistance can still can keep performance constant by the switch hundreds of thousands, can prolong the useful life of ballast; After fluorescent tube changed operate as normal over to, intelligent electric resistance can cut off the filament path fully, made filament no longer consume idle work, both can reduce power consumption, can improve light efficiency again, can also reduce filament and system's temperature rise, the unfailing performance height.
As shown in Figure 2, the live wire L of power supply connects fuse F1, connects filter inductance L1, and filter inductance L1 parallel resistance R1 forms anti-jamming circuit 1.The output of anti-jamming circuit 1 is connected the rectifier bridge of four diode D1, D2, D3, D4 composition with zero line N, the output of rectifier bridge filter capacitor C1 in parallel forms current rectifying and wave filtering circuit 2.The positive pole of the output of current rectifying and wave filtering circuit 2 connects triggering resistance R 2, trigger the negative pole that resistance R 2 connects the output that triggers capacitor C 2 connection current rectifying and wave filtering circuits 2, trigger resistance R 2, trigger positive pole and diac DAI that capacitor C 2 connects diode D5, the negative pole of diode D5 connects resistance R 3, resistance R 6, resistance R 7, magnetic ring transformer DTB one end, resistance R 3 other ends connect anodal, the magnetic ring transformer DTB other end connects the base stage of triode Q2 through resistance R 5, resistance R 6 other ends connect the base stage of triode Q2, resistance R 7 connects the emitter of triode Q2, the emitter of triode Q2 connects the positive pole of diode D6, the negative positive pole that is connected with the collector electrode of triode Q2 of diode D6; Diac DAI connects resistance R 8, R9 one end, and be connected with the base stage of triode Q1, resistance R 8 other ends connect negative pole through magnetic ring transformer DTA, resistance R 9 other ends connect negative pole, the emitter of triode Q1 connects negative pole through resistance R 10, the emitter of triode Q1 connects the positive pole of diode D7, the negative pole of diode D7 connects the collector electrode of triode Q1, and with the negative pole of diode D5, resistance R 3, resistance R 6, resistance R 7, magnetic ring transformer DTB one end is connected, the collector electrode of triode Q2 connects filtering anti-interference capacitor C3 one end, the other end and through the negative pole of diode D5, resistance R 3, resistance R 6, resistance R 7, magnetic ring transformer DTB one end is connected, positive pole is provided with capacitance C6, and negative pole is provided with magnetic ring transformer DTC and forms trigger switch high-frequency oscillating circuits 3.Two groups of filament lead wire one ends of fluorescent tube D are connected with capacitance C6, inductance L 2, resonant capacitance C5, and resonant capacitance C5, inductance L 2 are formed series resonant circuit 4.Two groups of filament lead wire other ends of fluorescent tube D are connected with intelligent electric resistance ZD, and resonant capacitance C5, intelligent electric resistance ZD form preheat starting circuit 5.Electric current obtains direct voltage more stably by direct voltage process filtering capacitor C 1 filtering of filter inductance L1 filtering, bridge rectifier output, by triggering resistance R 2 to triggering capacitor C 2 chargings, when triggering capacitor C 2 two ends reach certain voltage, diac DAI conducting, start to control electric current for triode Q1 base stage provides, make triode Q1 conducting.Filter capacitor C1 both end voltage is charged to capacitance C6, resonant capacitance C5, fluorescent tube D by triode Q1 and magnetic ring transformer DTC, the inductance L 2 of conducting, by intelligent electric resistance ZD filament is carried out abundant preheating simultaneously.Triode Q2 conducting then, triode Q1 ends, capacitance C6 is by triode Q2, fluorescent tube D discharge, when triode Q1, triode Q2 alternate conduction, the fluorescent lamp alternating discharge, switching frequency and the device output impedance of electronics town are by inductance L 2 and capacitance C6 decision, and the oscillating capacitance that catches fire of fluorescent tube D is C6C5/ (C6+C5), and resonant capacitance C5 is for starting electric capacity.The fluorescent tube D front loop impedance of catching fire is very high, and the Q value is very big, and oscillating voltage is higher, is added in starting resistor on the fluorescent tube D and is voltage on the resonant capacitance C5.
Claims (6)
1, a kind of electric ballast, anti-jamming circuit (1) connects current rectifying and wave filtering circuit (2), current rectifying and wave filtering circuit (2) connects trigger switch high-frequency oscillating circuits (3), trigger switch high-frequency oscillating circuits (3) connects series resonant circuit (4), series resonant circuit (4) connects preheat starting circuit (5), preheat starting circuit (5) connects fluorescent tube (D), preheat starting circuit (5) is two groups of filament lead wire one ends and the capacitance (C6) of fluorescent tube (D), inductance (L2), resonant capacitance (C5) is connected, and it is characterized in that: two groups of filament lead wire other ends of fluorescent tube (D) are connected with intelligent electric resistance (ZD).
2, according to the described electric ballast of claim 1, it is characterized in that: said anti-jamming circuit (1) is that the live wire (L) of power supply connects fuse (F1), connects filter inductance (L1), and filter inductance (L1) parallel resistance (R1) is formed.
3, according to the described electric ballast of claim 1, it is characterized in that: said current rectifying and wave filtering circuit (2) is that the output of anti-jamming circuit (1) is connected the rectifier bridge that four diodes (D1, D2, D3, D4) are formed with zero line (N), and the output of rectifier bridge filter capacitor in parallel (C1) is formed current rectifying and wave filtering circuit (2).
4, described electric ballast according to claim 1, it is characterized in that: said trigger switch high-frequency oscillating circuits (3) is that the positive pole of the output of current rectifying and wave filtering circuit (2) connects triggering resistance (R2), trigger the negative pole that resistance (R2) connects the output that triggers electric capacity (C2) connection current rectifying and wave filtering circuit (2), trigger resistance (R2), trigger positive pole and diac (DAI) that electric capacity (C2) connects diode (D5), the negative pole of diode (D5) connects resistance (R3), resistance (R6), resistance (R7), magnetic ring transformer (DTB) end, resistance (R3) other end connects anodal, magnetic ring transformer (DTB) other end connects the base stage of triode (Q2) through resistance (R5), resistance (R6) other end connects the base stage of triode (Q2), resistance (R7) connects the emitter of triode (Q2), the emitter of triode (Q2) connects the positive pole of diode (D6), the negative positive pole that is connected with the collector electrode of triode (Q2) of diode (D6); Diac (DAI) connects resistance (R8, R9) end, and be connected with the base stage of triode (Q1), resistance (R8) other end connects negative pole through magnetic ring transformer (DTA), resistance (R9) other end connects negative pole, the emitter of triode (Q1) connects negative pole through resistance (R10), the emitter of triode (Q1) connects the positive pole of diode (D), the negative pole of diode (D7) connects the collector electrode of triode (Q1), and with the negative pole of diode (D5), resistance (R3), resistance (R6), resistance (R7), magnetic ring transformer (DTB) end is connected, the collector electrode of triode (Q2) connects filtering anti-interference capacitor (C3) end, the other end and through the negative pole of diode (D5), resistance (R3), resistance (R6), resistance (R7), magnetic ring transformer (DTB) end is connected, positive pole is provided with capacitance (C6), and negative pole is provided with magnetic ring transformer (DTC) and forms trigger switch high-frequency oscillating circuits (3).
5, according to the described electric ballast of claim 1, it is characterized in that: said series resonant circuit (4) is that two groups of filament lead wire one ends of fluorescent tube (D) are connected with capacitance (C6), inductance (L2), resonant capacitance (C5), and resonant capacitance (C5), inductance (L2) are formed series resonant circuit (4).
6, according to the described electric ballast of claim 1, it is characterized in that: said preheat starting circuit (5) is that two groups of filament lead wire other ends of fluorescent tube (D) are connected with intelligent electric resistance (ZD), and resonant capacitance (C5), intelligent electric resistance (ZD) are formed preheat starting circuit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206922 CN2528187Y (en) | 2001-11-13 | 2002-01-31 | Electronic ballast |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01268435.X | 2001-11-13 | ||
| CN01268435 | 2001-11-13 | ||
| CN 02206922 CN2528187Y (en) | 2001-11-13 | 2002-01-31 | Electronic ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528187Y true CN2528187Y (en) | 2002-12-25 |
Family
ID=34064822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02206922 Expired - Fee Related CN2528187Y (en) | 2001-11-13 | 2002-01-31 | Electronic ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528187Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245110A (en) * | 2015-11-10 | 2016-01-13 | 潘秀兰 | DC boost circuit |
| CN113709928A (en) * | 2021-08-27 | 2021-11-26 | 江西汇荣实业有限公司 | Stable purple light function lamp gives out light |
-
2002
- 2002-01-31 CN CN 02206922 patent/CN2528187Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245110A (en) * | 2015-11-10 | 2016-01-13 | 潘秀兰 | DC boost circuit |
| CN113709928A (en) * | 2021-08-27 | 2021-11-26 | 江西汇荣实业有限公司 | Stable purple light function lamp gives out light |
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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 |