CN101868107A - Method and electronic ballast for starting gas discharge lamp for the second time without lamp filaments - Google Patents
Method and electronic ballast for starting gas discharge lamp for the second time without lamp filaments Download PDFInfo
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- CN101868107A CN101868107A CN 201010174724 CN201010174724A CN101868107A CN 101868107 A CN101868107 A CN 101868107A CN 201010174724 CN201010174724 CN 201010174724 CN 201010174724 A CN201010174724 A CN 201010174724A CN 101868107 A CN101868107 A CN 101868107A
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- discharge lamp
- gaseous discharge
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- voltage
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Abstract
The invention discloses a method for starting a gas discharge lamp for the second time without lamp filaments, comprising the following steps of: inputting a power voltage; carrying out anti-interference filtering on the power voltage; carrying out rectification filtering on the power voltage; converting the power voltage into a high-frequency voltage; inputting the high-frequency voltage to the gas discharge lamp; and distributing the current of the lamp filaments of the gas discharge lamp. The invention also discloses an electronic ballast for starting the gas discharge lamp for the second time without the lamp filaments. The method and the electronic ballast for starting the gas discharge lamp for the second time without the lamp filaments adopt a mode of distributing the current of the lamp filaments, which avoids that the lamp filaments are impacted by strong current, and prevents the lamp filaments of the gas discharge lamp from being burnt out.
Description
[technical field]
The present invention relates to lighting field, relate in particular to method and electric ballast that second time without lamp filaments starts gaseous discharge lamp.
[background technology]
Appearance along with global energy crisis; the sense of urgency of energy savings makes many companies be devoted to the research of energy-conserving light source and electronic ballast for fluoresent lamp; along with the semiconductor technology develop rapidly, various high anti-pressure power switching devices continue to bring out, for the exploitation of electric ballast provides condition.
At present, electric ballast is by rectification circuit, circuits for triggering, and high-frequency oscillating circuits and LC series connection output circuit are formed.Electric ballast is that the high-frequency and high-voltage that the alternating voltage with 220V/50HZ is reverse into 25KHZ-50KHZ is lighted fluorescent tube, has changed the stroboscopic problem that traditional in the past ballast is operated in 50HZ.Yet to the manufacturing and use and lack of standardization of electric ballast, not matching of electric ballast and fluorescent tube caused the electrical lighting light fixture life-span shorter on the market.
Therefore, prior art needs to improve.
[summary of the invention]
In order to solve the problems of the prior art; the invention provides method and electric ballast that a kind of second time without lamp filaments starts gaseous discharge lamp, adopt mode, prevent that filament is subjected to the impact of heavy current the heater current shunting; the safety of protective circuit has prolonged useful life of gaseous discharge lamp.
The invention provides the method that a kind of second time without lamp filaments starts gaseous discharge lamp, comprise input supply voltage; Supply voltage is carried out anti-interference filtration; Supply voltage is carried out rectifying and wave-filtering; Supply voltage is converted into high frequency voltage; High frequency voltage exports gaseous discharge lamp to, and the heater current of gaseous discharge lamp is shunted.
As a further improvement on the present invention, it is further comprising the steps of supply voltage to be converted into high frequency voltage: pfc circuit improves the power factor of circuit; Voltage transmission tremendously high frequency oscillating circuit behind the rectifying and wave-filtering; Simultaneously, the voltage transmission behind the rectifying and wave-filtering is to circuits for triggering, and then transfers to high-frequency oscillating circuits; The voltage of high-frequency oscillating circuits after with rectifying and wave-filtering is converted into high frequency voltage.
As a further improvement on the present invention, high frequency voltage exports gaseous discharge lamp to, and shunts further comprising the steps of to the heater current of gaseous discharge lamp: the two ends that two inductance are connected in parallel to gaseous discharge lamp respectively; Two inductance are shunted the filament of gaseous discharge lamp, prevent the impact that the filament of gaseous discharge lamp is received heavy current.
As a further improvement on the present invention, when the filament of gaseous discharge lamp broke down, two inductance replaced the filament of gaseous discharge lamps and self-oscillation forms high-frequency and high-voltage and lights waste fluorescent lamp; When the fluorescent material of described gaseous discharge lamp wore out fully, the trigger protection circuit forced circuit to quit work.
The present invention also provides a kind of second time without lamp filaments to start the electric ballast of gaseous discharge lamp, comprises anti-jamming circuit, is connected to power supply, is used for supply voltage is carried out anti-interference filtration; Rectification circuit is connected to described anti-jamming circuit, is used for described supply voltage is carried out rectifying and wave-filtering; Pfc circuit is connected to described rectification circuit, is used to improve the power factor of circuit; Circuits for triggering are connected to described rectification circuit and pfc circuit; High-frequency oscillating circuits is connected to described circuits for triggering and described circuits for triggering, is used for described supply voltage is converted into high frequency voltage; Output circuit is connected between described high-frequency oscillating circuits and the gaseous discharge lamp, is used to control the size of output current; Shunting comprises that with gaseous discharge lamp inductance is parallel to the two ends of gaseous discharge lamp filament, is used for the heater current of described gaseous discharge lamp is shunted.
The invention has the beneficial effects as follows:
(1) adopts the mode that heater current is shunted, prevent that filament is subjected to the impact of heavy current;
(2) at filament two ends shunt inductance, can when damaging, filament replace the filament practicality by shunt inductance, prolonged the useful life of gaseous discharge lamp;
When (3) gas of gaseous discharge lamp is used up fully, and entire circuit is quit work, protected the safety of circuit.
[description of drawings]
Fig. 1 is the module map that second time without lamp filaments of the present invention starts the method for gaseous discharge lamp;
Fig. 2 is the flow chart that second time without lamp filaments of the present invention starts the method for gaseous discharge lamp;
Fig. 3 is the circuit diagram that second time without lamp filaments of the present invention starts the electric ballast of gaseous discharge lamp.
[embodiment]
The present invention is further described below in conjunction with description of drawings and embodiment.
Be the module map that second time without lamp filaments of the present invention starts the method for gaseous discharge lamp as shown in Figure 1.Present embodiment comprises power supply 10, anti-jamming circuit 20, rectification circuit 30, pfc circuit 40, circuits for triggering 50, high-frequency oscillating circuits 60, output circuit 70 and shunting and gaseous discharge lamp 80.
Be the flow chart that second time without lamp filaments of the present invention starts the method for gaseous discharge lamp as shown in Figure 2.In step S100, input power supply 10 voltages.
In step S102, supply voltage is carried out anti-interference filtration.
In step S104, supply voltage is carried out rectifying and wave-filtering.
In step S106, supply voltage is converted into high frequency voltage.Be specially: pfc circuit 40 improves the power factor of circuit; Voltage transmission tremendously high frequency oscillating circuit 60 behind the rectifying and wave-filtering; Simultaneously, the voltage transmission behind the rectifying and wave-filtering is to circuits for triggering 50, and then transfers to high-frequency oscillating circuits 60; High-frequency oscillating circuits 60 is converted into high frequency voltage with the voltage behind the rectifying and wave-filtering.
In step S108, high frequency voltage exports gaseous discharge lamp to, and the heater current of gaseous discharge lamp is shunted.Be specially: the two ends that two inductance are connected in parallel to gaseous discharge lamp respectively; Two inductance are shunted the filament of gaseous discharge lamp, prevent the impact that the filament of gaseous discharge lamp is received heavy current.
In the present embodiment, when the filament of gaseous discharge lamp broke down, two inductance replaced the filament of gaseous discharge lamps and self-oscillation forms high-frequency and high-voltage and light the old fluorescent tube of waste gas body discharging lamp; When the fluorescent material of gaseous discharge lamp was aging fully, the fluorescent tube of gaseous discharge lamp lost efficacy, and promptly was equivalent to load open circuit, and output voltage rises, and electric circuit inspection trigger protection circuit working after the output voltage superelevation forces circuit to quit work.
Be the circuit diagram that second time without lamp filaments of the present invention starts the electric ballast of gaseous discharge lamp as shown in Figure 3.Anti-jamming circuit 20 is connected to power supply 10.Rectification circuit 30 is connected to anti-jamming circuit 20.Pfc circuit 40 is connected to rectification circuit 30.Circuits for triggering 50 are connected to rectification circuit 30 and pfc circuit 40.High-frequency oscillating circuits 60 is connected to circuits for triggering 50.Output circuit 70 is connected between high-frequency oscillating circuits 60 and the gaseous discharge lamp, is used to control the size of output current.Shunting and gaseous discharge lamp 80 comprise that inductance is parallel to the two ends of gaseous discharge lamp filament.
Anti-jamming circuit 20 comprises inductance L 5 and capacitor C 7, is used for supply voltage is carried out anti-interference filtration.
Circuits for triggering 50 comprise resistance R 1, capacitor C 2 and bidirectional diode 1DB3, and resistance R 1 is connected to rectification circuit 30 with capacitor C 2, and the end of bidirectional diode 1DB3 is connected between resistance R 1 and the capacitor C 2, and the other end is connected to the base stage of transistor Q2.
High-frequency oscillating circuits 60, comprise transistor Q1, transistor Q2, resistance R 4, resistance R 5, circuit R6 and pulse transformer T, transistor Q1, transistor Q2, resistance R 4, resistance R 5, circuit R6 and pulse transformer T, described resistance R 4 is connected between the base stage and described pulse transformer T of described transistor Q1, described resistance R 6 is connected between the collector electrode of the emitter of transistor Q1 and described transistor Q2, described resistance R 5 is connected between the emitter of described rectification circuit and described transistor Q2, pulse transformer T is connected to power inductance L4 and gaseous discharge lamp, is used for power supply 10 voltages are converted into high frequency voltage.
Shunting and gaseous discharge lamp 80 comprise inductance L 6 and inductance L 7, and inductance L 6 is in parallel with the filament at gaseous discharge lamp two ends respectively with inductance L 7, and the filament of gaseous discharge lamp is shunted, and prevent the impact that the filament of gaseous discharge lamp is received heavy current.When the filament of gaseous discharge lamp broke down, self-oscillation formed high-frequency and high-voltage and lights waste fluorescent lamp inductance L 6 with the filament of inductance L 7 replacement gaseous discharge lamps.
In the present embodiment, the output dc voltage tremendously high frequency oscillating circuit 60 of rectification circuit 30; Output DC is depressed into circuits for triggering 50 simultaneously, resistance R 1 gives capacitor C 2 chargings, when the voltage on the C2 is charged to the breakover voltage of bidirectional diode 1DB3, the rapid conducting of bidirectional diode 1DB3, and the transistor Q2 of conducting high-frequency oscillating circuits 60, under the immixture of pulse transformer T, transistor Q1 and transistor Q2 take turns conducting and ending, and output high voltage is to gaseous discharge lamp.
Second time without lamp filaments provided by the present invention starts the method and the electric ballast thereof of gaseous discharge lamp, adopts the mode with the heater current shunting, prevents that filament is subjected to the impact of heavy current; At filament two ends shunt inductance, can when damaging, filament have shunt inductance to replace the filament practicality, prolonged the useful life of gaseous discharge lamp; When the gas of gaseous discharge lamp is used up fully, and entire circuit is quit work, protected the safety of circuit.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the method for a second time without lamp filaments startup gaseous discharge lamp is characterized in that, may further comprise the steps:
Input supply voltage;
Described supply voltage is carried out anti-interference filtration;
Described supply voltage is carried out rectifying and wave-filtering;
Described supply voltage is converted into high frequency voltage;
Described high frequency voltage exports described gaseous discharge lamp to, and the heater current of described gaseous discharge lamp is shunted.
2. second time without lamp filaments according to claim 1 starts the method for gaseous discharge lamp, it is characterized in that, it is further comprising the steps of that described supply voltage is converted into high frequency voltage:
Pfc circuit improves the power factor of circuit;
Voltage transmission tremendously high frequency oscillating circuit behind the rectifying and wave-filtering;
Simultaneously, the voltage transmission behind the rectifying and wave-filtering is to circuits for triggering, and then triggers described high-frequency oscillating circuits;
The voltage of described high-frequency oscillating circuits after with rectifying and wave-filtering is converted into high frequency voltage.
3. second time without lamp filaments according to claim 1 starts the method for gaseous discharge lamp, it is characterized in that described high frequency voltage exports described gaseous discharge lamp to, and shunts further comprising the steps of to the heater current of described gaseous discharge lamp:
Two inductance are connected in parallel to the two ends of described gaseous discharge lamp filament respectively;
Described two inductance are shunted the filament of described gaseous discharge lamp, prevent that the filament of described gaseous discharge lamp is subjected to the impact of heavy current.
4. second time without lamp filaments according to claim 3 starts the method for gaseous discharge lamp, it is characterized in that: when the filament of described gaseous discharge lamp breaks down, described two inductance replace the filament of described gaseous discharge lamp and self-oscillation forms high-frequency and high-voltage, light waste fluorescent lamp; When the fluorescent material of described gaseous discharge lamp wore out fully, the trigger protection circuit forced circuit to quit work.
5. the electric ballast of a second time without lamp filaments startup gaseous discharge lamp is characterized in that: comprise anti-jamming circuit, be connected to power supply, be used for supply voltage is carried out anti-interference filtration; Rectification circuit is connected to described anti-jamming circuit, is used for described supply voltage is carried out rectification, and pfc circuit is connected to described rectification circuit, improves the power factor of circuit;
Circuits for triggering are connected to described rectification circuit and pfc circuit;
High-frequency oscillating circuits is connected to described circuits for triggering, is used for described supply voltage is converted into high-frequency and high-voltage;
Output circuit is connected between described high-frequency oscillating circuits and the gaseous discharge lamp, is used to control the size of output current;
Shunting and gaseous discharge lamp comprise that inductance is parallel to the two ends of gaseous discharge lamp filament, are used for the heater current of described gaseous discharge lamp is shunted.
6. second time without lamp filaments according to claim 5 starts the electric ballast of gaseous discharge lamp, it is characterized in that: described high-frequency oscillating circuits comprises transistor Q1, transistor Q2, resistance R 4, resistance R 5, circuit R6 and pulse transformer T, described resistance R 4 is connected between the base stage and described pulse transformer T of described transistor Q1, described resistance R 6 is connected between the collector electrode of the emitter of transistor Q1 and described transistor Q2, described resistance R 5 is connected between the emitter of described rectification circuit and described transistor Q2, and described pulse transformer T is connected to power inductance L4 and described gaseous discharge lamp.
7. second time without lamp filaments according to claim 6 starts the electric ballast of gaseous discharge lamp, it is characterized in that: described circuits for triggering comprise resistance R 1, capacitor C 2 and bidirectional diode 1DB3, described resistance R 1 is connected to described rectification circuit with described capacitor C 2, the end of described bidirectional diode 1DB3 is connected between described resistance R 1 and the described capacitor C 2, and the other end is connected to the base stage of described transistor Q2.
8. second time without lamp filaments according to claim 7 starts the electric ballast of gaseous discharge lamp, and it is characterized in that: described rectification circuit output DC is depressed into described high-frequency oscillating circuits; Output DC is depressed into described circuits for triggering simultaneously, described resistance R 1 is given described capacitor C 2 chargings, when the voltage on the described C2 is charged to the breakover voltage of bidirectional diode 1DB3, the rapid conducting of bidirectional diode 1DB3, and the transistor Q2 of the described high-frequency oscillating circuits of conducting, under the immixture of pulse transformer T, transistor Q1 and transistor Q2 take turns conducting and ending, and output high voltage is to described gaseous discharge lamp.
9. second time without lamp filaments according to claim 5 starts the electric ballast of gaseous discharge lamp, it is characterized in that: described shunting and gaseous discharge lamp comprise inductance L 6 and inductance L 7, described inductance L 6 is in parallel with the filament at described gaseous discharge lamp two ends respectively with described inductance L 7, filament to described gaseous discharge lamp is shunted, and prevents that the filament of described gaseous discharge lamp is subjected to the impact of heavy current; When the filament of described gaseous discharge lamp broke down, self-oscillation formed high-frequency and high-voltage and lights waste fluorescent lamp described inductance L 6 with the filament of the described gaseous discharge lamp of described inductance L 7 replacements.
10. second time without lamp filaments according to claim 5 starts the electric ballast of gaseous discharge lamp, it is characterized in that: described output circuit comprises bidirectional diode 2DB3, transistor Q3, diode D13 and thyristor BG1, described bidirectional diode 2DB3 is through diode D15, resistance R 10 is connected between the base stage of described inductance L 4 and described transistor Q3, the emitter of described transistor Q3 is connected to the control utmost point of described thyristor BG1, the anode of described thyristor BG1 is connected to the negative pole of described diode D13, the positive pole of described diode D13 is connected to the base stage of described transistor Q1, when the fluorescent material of described gaseous discharge lamp wears out fully, promptly be equivalent to load open circuit, at this moment, the voltage of resistance R 9 upper ends can rise, when rising to the breakover voltage of 2DB3, described bidirectional diode 2DB3 conducting causes described transistor Q3 conducting, triggers thyristor BG1 conducting, force the base potential of transistor Q1 to descend, entire circuit quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010174724XA CN101868107B (en) | 2010-05-11 | 2010-05-11 | Method and electronic ballast for starting gas discharge lamp for the second time without lamp filaments |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010174724XA CN101868107B (en) | 2010-05-11 | 2010-05-11 | Method and electronic ballast for starting gas discharge lamp for the second time without lamp filaments |
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| Publication Number | Publication Date |
|---|---|
| CN101868107A true CN101868107A (en) | 2010-10-20 |
| CN101868107B CN101868107B (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010174724XA Expired - Fee Related CN101868107B (en) | 2010-05-11 | 2010-05-11 | Method and electronic ballast for starting gas discharge lamp for the second time without lamp filaments |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273480Y (en) * | 1996-10-06 | 1998-01-28 | 浙江阳光集团公司 | Electronic ballast of high strength gas discharge lamp |
| CN2283957Y (en) * | 1997-02-05 | 1998-06-10 | 李进 | Energy-saving electronic ballast |
| WO2004028218A1 (en) * | 2002-09-12 | 2004-04-01 | Tridonicatco Gmbh & Co. Kg | Electronic ballast with a charge pump for active power factor correction |
| CN201733507U (en) * | 2010-05-11 | 2011-02-02 | 深圳市金码盈科电子有限公司 | Electronic ballast for second non-filament startup gas discharge lamp |
-
2010
- 2010-05-11 CN CN201010174724XA patent/CN101868107B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273480Y (en) * | 1996-10-06 | 1998-01-28 | 浙江阳光集团公司 | Electronic ballast of high strength gas discharge lamp |
| CN2283957Y (en) * | 1997-02-05 | 1998-06-10 | 李进 | Energy-saving electronic ballast |
| WO2004028218A1 (en) * | 2002-09-12 | 2004-04-01 | Tridonicatco Gmbh & Co. Kg | Electronic ballast with a charge pump for active power factor correction |
| CN201733507U (en) * | 2010-05-11 | 2011-02-02 | 深圳市金码盈科电子有限公司 | Electronic ballast for second non-filament startup gas discharge lamp |
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| Publication number | Publication date |
|---|---|
| CN101868107B (en) | 2012-09-19 |
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Owner name: GUANGDONG FANGDA SUOZHENG PHOTOELECTRIC LIGHTING C Free format text: FORMER OWNER: SHENZHEN GOLDEN PACIFIC CENTURY CODE ELECTRONICS CO., LTD. Effective date: 20150610 |
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Effective date of registration: 20150610 Address after: 528400 Guangdong city of Zhongshan Province town Henglan new Mao Wai Road West two industrial zone, No. 18, 1, 3, 4 layer 2 Patentee after: GUANGDONG FANGDASUOZHENG LIGHTING CO., LTD. Address before: 518000 Guangdong city of Shenzhen province Futian District Shennan Road Huaqiang building block B floor 29 unit 05 Patentee before: Shenzhen Golden Pacific Century Code Electronics Co., Ltd. |
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Granted publication date: 20120919 Termination date: 20160511 |
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