CN102630117A - Low-frequency homenergic synchronous switch gas discharge lamp driving circuit - Google Patents
Low-frequency homenergic synchronous switch gas discharge lamp driving circuit Download PDFInfo
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- CN102630117A CN102630117A CN2012100760053A CN201210076005A CN102630117A CN 102630117 A CN102630117 A CN 102630117A CN 2012100760053 A CN2012100760053 A CN 2012100760053A CN 201210076005 A CN201210076005 A CN 201210076005A CN 102630117 A CN102630117 A CN 102630117A
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- discharge lamp
- homenergic
- power supply
- gas discharge
- output
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Abstract
A low-frequency homenergic synchronous switch gas discharge lamp driving circuit comprises a power conversion module (10); the output of the power conversion module (10) is connected with the primary of a transformer K1; the output of the transformer K1 constitutes a first power supply N1 and a second power supply N2 which are homenergic; the output of the first power supply N1 and the output of the second power supply N2 are connected with a discharge lamp H; and a field-effect transistor Q1 and a field-effect transistor Q2 are connected in series with the hot end of the first power supply N1 and the cold end of the second power supply N2 respectively. The driving circuit provided by the invention has the advantages of simple structure, low cost and high reliability.
Description
Technical field
The present invention relates to circuit design, particularly be used for the circuit design of discharge lamp driving circuit.
Background technology
Discharge lamp of the prior art generally all is to adopt two kinds of type of drive, and wherein a kind of is the full-bridge switching-over, and a kind of in addition is the half-bridge switching-over, and the light tube electric voltage of this dual mode all is to adopt square wave.This dual mode structure more complicated, element is more, and reliability is also poor.
Summary of the invention
The present invention provides a kind of simple in structure, cost is low and reliability is high discharge lamp driving circuit, solves the technical problem that prior art exists.
The present invention solves the problems of the technologies described above this low frequency homenergic synchro switch gas discharge lamp driver circuit that provides to comprise the Power Conversion module, and the output of this Power Conversion module connects transformer K
1Elementary, this transformer K
1Output constitute the first power supply N of two homenergics
1With second source N
2, the said first power supply N
1With second source N
2Output connect discharge lamp H, this first power supply N
1Hot end and second source N
2Cold end be in series with FET Q respectively
1With FET Q
2The said first power supply N
1Comprise transformer K
1Secondary T
1And with this secondary T
1The capacitor C of parallel connection
1, also comprise secondary T
1Output and capacitor C
1Between forward diode in series D
1, said capacitor C
1Output connect said discharge lamp H.Said second source N
2Comprise transformer K
1Secondary T
2And with this secondary T
2The capacitor C of parallel connection
2, also comprise secondary T
2Output and capacitor C
2Between the diode D of differential concatenation
2, said capacitor C
2Output connect said discharge lamp H.Said discharge lamp H two ends are in series with inductance L respectively
1And inductance L
2, said Power Conversion module (10) is inverse-excitation type, push-pull type, semibridge system or harmonic wave formula functional mapping module, said transformer K
1Secondary T
1With secondary T
2The number of turn identical, said FET Q
1With FET Q
2Alternately open or close the FET Q of said two series connection
1With FET Q
2An end ground connection.
The application of discharge lamp driving circuit of the present invention begins again need be high not worried for the full-bridge circuit cost of costliness; Careless add that with a low price power conversion circuit this circuit just can make a stabilizer; Like this, more can promote the paces that whole discharge lamp is popularized.The more important thing is that from then on the driving switching-over of gaseous discharge lamp has had the third duplicate supply synchro switch switching-over except full-bridge switching-over, half-bridge switching-over.
Description of drawings
Fig. 1 is the sketch map of low frequency homenergic synchro switch gas discharge lamp driver circuit of the present invention.
Embodiment
In conjunction with Fig. 1 specific embodiment of the present invention is described.
By knowing among Fig. 1, this low frequency homenergic synchro switch gas discharge lamp driver circuit comprises Power Conversion module 10, and the output of this Power Conversion module 10 connects transformer K
1Elementary, this transformer K
1Output constitute the first power supply N of two homenergics
1With second source N
2, the said first power supply N
1With second source N
2Output connect discharge lamp H, this first power supply N
1Hot end and second source N
2Cold end be in series with FET Q respectively
1With FET Q
2The said first power supply N
1Comprise transformer K
1Secondary T
1And with this secondary T
1The capacitor C of parallel connection
1, also comprise secondary T
1Output and capacitor C
1Between forward diode in series D
1, said capacitor C
1Output connect said discharge lamp H.Said second source N
2Comprise transformer K
1Secondary T
2And with this secondary T
2The capacitor C of parallel connection
2, also comprise secondary T
2Output and capacitor C
2Between the diode D of differential concatenation
2, said capacitor C
2Output connect said discharge lamp H.Said discharge lamp H two ends are in series with inductance L respectively
1And inductance L
2, said transformer K
1Secondary T
1With secondary T
2The number of turn identical, said FET Q
1With FET Q
2Alternately open or close.The FET Q of said two series connection
1With FET Q
2An end ground connection.Power Conversion module 10 can adopt instead swash, recommend, modes such as half-bridge or resonance, again through transformer K
1Elementary direct change deliver to two secondary T
1And T
2, through control effect pipe Q
1Open and FET Q
2The pipe 3 controls first power supply N
1Drive discharge lamp H, perhaps FET Q
2Open and FET Q
1Close control second source N
2Drive discharge lamp H; Circulation obtains low frequency and drives ripple thus, and the present invention changes the mode that adopts driven in the conventional ADS driving circuit, adopts Control current to drive discharge lamp; Then go adjustment according to the requirement of discharge lamp fully for voltage, realize that the positive and negative electric current low frequency of gaseous discharge lamp drives.
Circuit of the present invention is simple, compares full bridge driving circuit, and half-bridge drive circuit is only less than its half the element; Better reliability has only an independent dead band, can not resemble full-bridge and run into complex environment and can lead directly to and break down, owing to adopted the generating positive and negative voltage driving, big loop current reduces one times, and fraction defective can be lower; The voltage square wave that type of drive is overturned the switching-over of conventional full bridge, half-bridge is a light tube electric voltage, and the present invention program's switching-over can produce a positive light tube electric voltage and a negative fulgurite voltage; Load applications property is strong, and this programme all is suitable for large, medium and small power voltage property loads such as Metal halogen lamp, ceramic gold-halogen lamp, xenon lamps, can replace full-bridge fully, and half-bridge etc. drive reversing mode; It is ingenious to commutate, and utilizes the voltage of two groups of coils to equate characteristic, the time sharing power supply of connecting again, and reach the purpose of switching-over; Positive and negative pipe is pressed and is equated, energy equates that the line pressure synchronization magnitude of voltage of two groups of identical numbers of turn is equal, time sharing power supply, can source sampling the same, and the energy that reversal obtains equates.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (7)
1. a low frequency homenergic synchro switch gas discharge lamp driver circuit is characterized in that: comprise Power Conversion module (10), the output connection transformer K of this Power Conversion module (10)
1Elementary, this transformer K
1Output constitute the first power supply N of two homenergics
1With second source N
2, the said first power supply N
1With second source N
2Output connect discharge lamp H, this first power supply N
1Hot end and second source N
2Cold end be in series with FET Q respectively
1With FET Q
2, said FET Q
1With FET Q
2Alternately open or close, control the first power supply N
1With second source N
2Driven discharge lamp H.
2. according to the said low frequency homenergic of claim 1 synchro switch gas discharge lamp driver circuit, it is characterized in that: the said first power supply N
1Comprise transformer K
1Secondary T
1And with this secondary T
1The capacitor C of parallel connection
1, also comprise secondary T
1Output and capacitor C
1Between forward diode in series D
1, said capacitor C
1Output connect said discharge lamp H.
3. according to the said low frequency homenergic of claim 1 synchro switch gas discharge lamp driver circuit, it is characterized in that: said second source N
2Comprise transformer K
1Secondary T
2And with this secondary T
2The capacitor C of parallel connection
2, also comprise secondary T
2Output and capacitor C
2Between the diode D of differential concatenation
2, said capacitor C
2Output connect said discharge lamp H.
4. according to each said low frequency homenergic synchro switch gas discharge lamp driver circuit in the claim 1 to 3, it is characterized in that: said discharge lamp H two ends are in series with inductance L respectively
1And inductance L
2
5. according to each said low frequency homenergic synchro switch gas discharge lamp driver circuit in the claim 1 to 3, it is characterized in that: said Power Conversion module (10) is inverse-excitation type, push-pull type, semibridge system or harmonic wave formula functional mapping module.
6. according to each said low frequency homenergic synchro switch gas discharge lamp driver circuit in the claim 1 to 3, it is characterized in that: said transformer K
1Secondary T
1With secondary T
2The number of turn identical.
7. according to each said low frequency homenergic synchro switch gas discharge lamp driver circuit in the claim 1 to 3, it is characterized in that: the FET Q of said two series connection
1With FET Q
2An end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100760053A CN102630117A (en) | 2012-03-21 | 2012-03-21 | Low-frequency homenergic synchronous switch gas discharge lamp driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100760053A CN102630117A (en) | 2012-03-21 | 2012-03-21 | Low-frequency homenergic synchronous switch gas discharge lamp driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102630117A true CN102630117A (en) | 2012-08-08 |
Family
ID=46588247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100760053A Pending CN102630117A (en) | 2012-03-21 | 2012-03-21 | Low-frequency homenergic synchronous switch gas discharge lamp driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102630117A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216211A (en) * | 1997-02-13 | 1999-05-05 | 皇家菲利浦电子有限公司 | Circuit arrangement |
| CN2634790Y (en) * | 2003-07-30 | 2004-08-18 | 浙江大学 | Electronic ballast for high voltage input constant power high strength gas discharge lamp |
| CN1564644A (en) * | 2004-03-22 | 2005-01-12 | 浙江大学 | Electronic ballast of hihg strength gas discharging light |
| CN2817288Y (en) * | 2005-08-15 | 2006-09-13 | 袁荣荣 | High-strength gas discharge lamp electronic ballst |
| CN1883238A (en) * | 2003-11-21 | 2006-12-20 | 松下电工株式会社 | Discharge lamp ballast with detection of abnormal discharge outside the arc tube |
| CN1949947A (en) * | 2005-10-12 | 2007-04-18 | 林福泳 | HID lamp electronic ballast |
| CN101730356A (en) * | 2008-10-28 | 2010-06-09 | 松下电工株式会社 | Discharge lamp lighting device and illumination fixture |
| CN102273326A (en) * | 2009-01-09 | 2011-12-07 | 特里多尼克有限两合公司 | Method, operating device, and lighting system |
-
2012
- 2012-03-21 CN CN2012100760053A patent/CN102630117A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216211A (en) * | 1997-02-13 | 1999-05-05 | 皇家菲利浦电子有限公司 | Circuit arrangement |
| CN2634790Y (en) * | 2003-07-30 | 2004-08-18 | 浙江大学 | Electronic ballast for high voltage input constant power high strength gas discharge lamp |
| CN1883238A (en) * | 2003-11-21 | 2006-12-20 | 松下电工株式会社 | Discharge lamp ballast with detection of abnormal discharge outside the arc tube |
| CN1564644A (en) * | 2004-03-22 | 2005-01-12 | 浙江大学 | Electronic ballast of hihg strength gas discharging light |
| CN2817288Y (en) * | 2005-08-15 | 2006-09-13 | 袁荣荣 | High-strength gas discharge lamp electronic ballst |
| CN1949947A (en) * | 2005-10-12 | 2007-04-18 | 林福泳 | HID lamp electronic ballast |
| CN101730356A (en) * | 2008-10-28 | 2010-06-09 | 松下电工株式会社 | Discharge lamp lighting device and illumination fixture |
| CN102273326A (en) * | 2009-01-09 | 2011-12-07 | 特里多尼克有限两合公司 | Method, operating device, and lighting system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20120808 |