CN105611707A - Hot start ballast and low-frequency full bridge circuit of metal halide lamp - Google Patents
Hot start ballast and low-frequency full bridge circuit of metal halide lamp Download PDFInfo
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- CN105611707A CN105611707A CN201510742059.2A CN201510742059A CN105611707A CN 105611707 A CN105611707 A CN 105611707A CN 201510742059 A CN201510742059 A CN 201510742059A CN 105611707 A CN105611707 A CN 105611707A
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- circuit
- full bridge
- frequency full
- bridge circuit
- low frequency
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
- H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The invention discloses a hot start ballast and low-frequency full bridge circuit of a metal halide lamp. The hot start ballast and low-frequency full bridge circuit comprises a filter circuit, a flyback transformation circuit, a controller, an auxiliary power supply circuit, a low-frequency full-bridge circuit, a driving circuit and an ignition unit, wherein the input end of the filter circuit is connected with a low-voltage DC input power supply, the output end of the filter circuit is connected with the flyback transformation circuit, and the controller is connected with the flyback transformation circuit. According to the invention, ignition can be realized in the low-frequency voltage, so that the metal halide lamp can be lightened when the lamp is hot, practical using requirements are met, service life of a metal halide lamp bulb is ensured, and use is realized effectively; and the single-end flyback transformation circuit works in the continuous work mode, so that the conduction EMI noise ratio is greatly reduced; and the duty ratio is adjusted, and power-constant work and circuit protection can be realized rapidly in the precise power-constant control process.
Description
Technical field
Invention relates to a kind of power technique fields, especially a kind of Metal halogen lamp thermal starting ballast and low frequency full bridge circuit.
Background technology
Metal halogen lamp at present, it is the abbreviation of metal halide lamp, Metal halogen lamp is AC power work, in the halide mixed vapour of mercury and rare metal, produce the luminous discharge lamp of arc discharge, metal halide lamp is on high-pressure sodium lamp basis, to add the third generation light source that various metal halides are made, and is widely used in the illumination in the places such as stadiums, exhibition center, megastore, industrial premises, square, street, station, harbour. Although Metal halogen lamp service life of approximately 20,000 hours was less than 50,000 hours of LED, but its cost is far below LED, and in the actual use of LED light fixture, because the life-span of external circuit is far below the actual life of LED, make the service life of LED light fixture entirety shorter, even within 10,000 hours, also do not have; Thereby Metal halogen lamp has advantages such as luminous efficiency is high, colour rendering index is high, cost is low, long service life, be the perfect light source of extensive illumination.
Show as from igniting to the time of stable state from the starting characteristic of Metal halogen lamp, impedance is the process of a dynamic change, and the different phase that therefore requires ballast to start at Metal halogen lamp provides suitable electric current and voltage, and guarantee fund's halogen lamp reliably starts and enters stable state.
Summary of the invention
The object of invention is for the deficiencies in the prior art, and a kind of Metal halogen lamp thermal starting ballast and low frequency full bridge circuit are provided.
For achieving the above object, invention is achieved through the following technical solutions:
A kind of Metal halogen lamp thermal starting ballast and low frequency full bridge circuit, comprise filter circuit, inverse-excitation converting circuit, controller, auxiliary power supply circuit, low frequency full bridge circuit, drive circuit and igniting unit, described filter circuit input is connected with low-voltage direct input power, another output is connected with inverse-excitation converting circuit, described controller is connected with described inverse-excitation converting circuit, and the output of described auxiliary power supply circuit is connected with low frequency full bridge circuit; Described full drive circuit is connected with described low frequency full bridge circuit; The output connection fire unit of described low frequency full bridge circuit.
Further, described inverse-excitation converting circuit comprises flyback transformer, the first switching tube of the former limit inductance series connection of this flyback transformer, the output commutation diode of connecting with the secondary inductance of described flyback transformer, with the output capacitance in parallel with described secondary inductance, described auxiliary power supply circuit comprises transient voltage twin zener dioder, the second resistance and the second electric capacity, and described transient voltage twin zener dioder is connected in series with second resistance one end, the described second resistance other end and described the second capacitance series.
Further, described igniting unit includes current-limiting resistance, igniting charging capacitor and vacuum switch tube, and described current-limiting resistance and igniting charging capacitor can be the resistor networks of multiple resistance compositions, are also provided with high voltage package and Metal halogen lamp under described igniting unit.
Further, described low frequency full bridge circuit also includes two PC oscillating circuits, full-bridge metal-oxide-semiconductor output circuit, high-side driver and bottom driver, described high-side driver is provided with boostrap circuit, is arranged in grid driving loop, for raising the voltage of high side circuitry.
The beneficial effect of the invention is: this circuit can be at low-frequency voltage down-firing; Metal halogen lamp still can be lighted under thermolamp state; meet the actual needs that use; service life that simultaneously can also guarantee fund's halogen bulb; effectively realize and using, by adopting single-ended flyback translation circuit to be operated under interrupter duty pattern, greatly reduce Conducted EMI noise ratio; by regulating dutycycle, can realize fast permanent power work and circuit protection function in accurate permanent power control process.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of invention.
Fig. 2 is the structural representation of the low frequency full bridge circuit of invention.
Detailed description of the invention
For structure, feature and effect thereof to invention, can have and further understand and be familiar with, now lift a preferred embodiment, and be described with reference to the accompanying drawings as follows:
As depicted in figs. 1 and 2, the described a kind of Metal halogen lamp thermal starting ballast of the present embodiment and low frequency full bridge circuit, it mainly comprises filter circuit 2, inverse-excitation converting circuit 3, controller 1, auxiliary power supply circuit 4, low frequency full bridge circuit 5, drive circuit 6 and igniting unit 12, filter circuit 2 inputs are connected with low-voltage direct input power, another output is connected with inverse-excitation converting circuit, controller 1 is connected with described inverse-excitation converting circuit 3, and the output of auxiliary power supply circuit 4 is connected with low frequency full bridge circuit 5, full drive circuit 6 is connected with low frequency full bridge circuit 5, the output connection fire unit 12 of low frequency full bridge circuit 5, inverse-excitation converting circuit 3 comprises flyback transformer, the first switching tube of the former limit inductance series connection of this flyback transformer, the output commutation diode of connecting with the secondary inductance of flyback transformer, with the output capacitance in parallel with secondary inductance, auxiliary power supply circuit 4 comprises transient voltage twin zener dioder, the second resistance and the second electric capacity, transient voltage twin zener dioder is connected in series with second resistance one end, the second resistance other end and the second capacitance series, igniting unit 12 includes current-limiting resistance 7, igniting charging capacitor 8 and vacuum switch tube 9, current-limiting resistance 7 and igniting charging capacitor 8 can be the resistor networks of multiple resistance compositions, igniting unit is also provided with high voltage package 10 and Metal halogen lamp 11 for 12 times, low frequency full bridge circuit 5 also includes two PC oscillating circuits 52, full-bridge metal-oxide-semiconductor output circuit 51, high-side driver 53, 55 and bottom driver 54, 56, described high-side driver 53, 55 are provided with boostrap circuit, being arranged at grid drives in loop, for raising the voltage of high side circuitry.
Invention can be at low-frequency voltage down-firing; Metal halogen lamp still can be lighted under thermolamp state; meet the actual needs that use; service life that simultaneously can also guarantee fund's halogen bulb; effectively realize and using, by adopting single-ended flyback translation circuit to be operated under interrupter duty pattern, greatly reduce Conducted EMI noise ratio; by regulating dutycycle, can realize fast permanent power work and circuit protection function in accurate permanent power control process.
The foregoing is only the preferred embodiment of invention; not limit working of an invention scope with this, all persons that is familiar with technique, use principle and the technical characterictic of invention; various changes and the decoration done, within all should being covered by the protection category that these claims define.
Claims (4)
1. a Metal halogen lamp thermal starting ballast and low frequency full bridge circuit, comprise filter circuit (2), inverse-excitation converting circuit (3), controller (1), auxiliary power supply circuit (4), low frequency full bridge circuit (5), drive circuit (6) and igniting unit (12), it is characterized in that: described filter circuit (2) input is connected with low-voltage direct input power, another output is connected with inverse-excitation converting circuit, described controller (1) is connected with described inverse-excitation converting circuit (3), the output of described auxiliary power supply circuit (4) is connected with low frequency full bridge circuit (5), described full drive circuit (6) is connected with described low frequency full bridge circuit (5), the output connection fire unit (12) of described low frequency full bridge circuit (5).
2. a kind of Metal halogen lamp thermal starting ballast as claimed in claim 1 and low frequency full bridge circuit, it is characterized in that: described inverse-excitation converting circuit (3) comprises flyback transformer, the first switching tube of the former limit inductance series connection of this flyback transformer, the output commutation diode of connecting with the secondary inductance of described flyback transformer, with the output capacitance in parallel with described secondary inductance, described auxiliary power supply circuit (4) comprises transient voltage twin zener dioder, the second resistance and the second electric capacity, described transient voltage twin zener dioder is connected in series with second resistance one end, the described second resistance other end and described the second capacitance series.
3. a kind of Metal halogen lamp thermal starting ballast as claimed in claim 1 and low frequency full bridge circuit, it is characterized in that: described igniting unit (12) includes current-limiting resistance (7), igniting charging capacitor (8) and vacuum switch tube (9), described current-limiting resistance (7) and igniting charging capacitor (8) can be the resistor networks of multiple resistance compositions, are also provided with high voltage package (10) and Metal halogen lamp (11) under described igniting unit (12).
4. a kind of Metal halogen lamp thermal starting ballast as claimed in claim 1 and low frequency full bridge circuit, it is characterized in that: described low frequency full bridge circuit (5) also includes two PC oscillating circuits (52), full-bridge metal-oxide-semiconductor output circuit (51), high-side driver (53,55) and bottom driver (54,56), described high-side driver (53,55) is provided with boostrap circuit, is arranged in grid driving loop, for raising the voltage of high side circuitry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742059.2A CN105611707A (en) | 2015-11-02 | 2015-11-02 | Hot start ballast and low-frequency full bridge circuit of metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742059.2A CN105611707A (en) | 2015-11-02 | 2015-11-02 | Hot start ballast and low-frequency full bridge circuit of metal halide lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105611707A true CN105611707A (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510742059.2A Pending CN105611707A (en) | 2015-11-02 | 2015-11-02 | Hot start ballast and low-frequency full bridge circuit of metal halide lamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN105611707A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535447A (en) * | 2016-09-22 | 2017-03-22 | 武汉鑫双易科技开发有限公司 | Novel AC-AC variable frequency single-stage high frequency inductor electronic ballast and operating method of the same |
| CN106535445A (en) * | 2016-09-29 | 2017-03-22 | 武汉鑫双易科技开发有限公司 | Novel AC-AC variable frequency single-stage high-frequency electronic ballast and operating method thereof |
| CN113225033A (en) * | 2021-05-13 | 2021-08-06 | 南京宁镭电子科技有限公司 | Power amplifier extension with bootstrap circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6005354A (en) * | 1996-10-21 | 1999-12-21 | International Rectifier Corporation | Ballast IC with shut-down function |
| CN101483956A (en) * | 2008-12-10 | 2009-07-15 | 上海亚明灯泡厂有限公司 | Low frequency full bridge circuit used for ceramic metal halogen lamp electric ballast |
| CN202444684U (en) * | 2012-01-05 | 2012-09-19 | 吴建锋 | Metal halide lamp electronic ballast |
| CN103391676A (en) * | 2013-07-01 | 2013-11-13 | 广州纽威光电科技有限公司 | Hot-starting electronic ballast of metal halide lamp |
-
2015
- 2015-11-02 CN CN201510742059.2A patent/CN105611707A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6005354A (en) * | 1996-10-21 | 1999-12-21 | International Rectifier Corporation | Ballast IC with shut-down function |
| CN101483956A (en) * | 2008-12-10 | 2009-07-15 | 上海亚明灯泡厂有限公司 | Low frequency full bridge circuit used for ceramic metal halogen lamp electric ballast |
| CN202444684U (en) * | 2012-01-05 | 2012-09-19 | 吴建锋 | Metal halide lamp electronic ballast |
| CN103391676A (en) * | 2013-07-01 | 2013-11-13 | 广州纽威光电科技有限公司 | Hot-starting electronic ballast of metal halide lamp |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535447A (en) * | 2016-09-22 | 2017-03-22 | 武汉鑫双易科技开发有限公司 | Novel AC-AC variable frequency single-stage high frequency inductor electronic ballast and operating method of the same |
| CN106535447B (en) * | 2016-09-22 | 2019-07-12 | 武汉鑫双易科技开发有限公司 | The single-stage high-frequency inductor electric ballast and its working method of novel AC/AC (alternating current) variable-frequency |
| CN106535445A (en) * | 2016-09-29 | 2017-03-22 | 武汉鑫双易科技开发有限公司 | Novel AC-AC variable frequency single-stage high-frequency electronic ballast and operating method thereof |
| CN106535445B (en) * | 2016-09-29 | 2019-07-12 | 武汉鑫双易科技开发有限公司 | The single-stage high-frequency electronic ballast and its working method of novel AC/AC (alternating current) variable-frequency |
| CN113225033A (en) * | 2021-05-13 | 2021-08-06 | 南京宁镭电子科技有限公司 | Power amplifier extension with bootstrap circuit |
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Application publication date: 20160525 |
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