CN101808446A - Starting circuit for lighting apparatus driver - Google Patents
Starting circuit for lighting apparatus driver Download PDFInfo
- Publication number
- CN101808446A CN101808446A CN200910263603A CN200910263603A CN101808446A CN 101808446 A CN101808446 A CN 101808446A CN 200910263603 A CN200910263603 A CN 200910263603A CN 200910263603 A CN200910263603 A CN 200910263603A CN 101808446 A CN101808446 A CN 101808446A
- Authority
- CN
- China
- Prior art keywords
- control switch
- active control
- driver
- lighting apparatus
- output circuit
- 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.)
- Pending
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- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 230000002238 attenuated effect Effects 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H05B41/2825—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 by means of a bridge converter in the final stage
- H05B41/2827—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 by means of a bridge converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The invention relates to a driver for a lighting apparatus, the driver has an inverter with at least one active control switch (Q30, Q31) supplied with a direct current voltage, a resonant output circuit with at least one inductor (Lr) is connected on the active control switch in order to drive at least one lighting apparatus (Lamp), wherein, the active control switch (Q30, Q31) is started by the coupling with the output circuit, wherein, the starting of the active control switch (Q30, Q31) is attenuated in the predetermined time so as to increase the starting frequency of the active control switch.
Description
Technical field
The present invention relates to a kind of driver that is used to drive lighting apparatus, the circuit of with good grounds claim 1 preamble of this driving implement the invention still further relates to a kind of method that is used to drive lighting apparatus according to claim 13 preamble.
Background technology
This driver of lighting apparatus is used for illumination and is used in illuminator, so that drive lighting apparatus with treasuring and obtain higher useful life.This for example this driver drives as the fluorescent lamp of lighting apparatus and heat its filament.
In modern illuminator, often send digital control instruction to driver by central control unit.Especially can stipulate special brightness value by these external control instructions, thereby obtain various illumination conditions.For can the preheating gas discharge lamp, adopt special heater circuit usually.
German patent application DE3835533A1 shows this heater circuit, yet must be scheduled to warm-up time with thermistor here.This thermistor homogeneity of product is very bad, but also depends on very much ambient temperature.
Summary of the invention
Task of the present invention is to provide a kind of driver with starting circuit, and this driver does not have above-mentioned shortcoming can significantly reduce this shortcoming in other words.
According to the present invention, this task is finished in the characteristic features by claim 1 aspect the device of the type, and this task characteristic features by claim 13 aspect method is finished.Dependent claims has illustrated particularly advantageous execution mode of the present invention.
The driver that is used for lighting apparatus according to the present invention has inverter, this inverter has at least one ACTIVE CONTROL switch, described ACTIVE CONTROL switch is provided with direct voltage, resonance output circuit with at least one inductor is connected on this ACTIVE CONTROL switch, so that drive at least one lighting apparatus, wherein, by starting described ACTIVE CONTROL switch with the coupling of described output circuit, and wherein, the starting of described ACTIVE CONTROL switch is attenuated in the given time, thereby increases the number of starts of described ACTIVE CONTROL switch.
Also can realize a kind of method of utilizing inverter to drive lighting apparatus according to the present invention, this inverter has at least one ACTIVE CONTROL switch, described ACTIVE CONTROL switch is to the resonance output circuit power supply with at least one lighting apparatus, wherein, the described starting of described ACTIVE CONTROL switch is attenuated in the given time, thereby increases the number of starts of described ACTIVE CONTROL switch.
The invention still further relates to a kind of lighting device that uses driver of the present invention.
Description of drawings
Further describe the present invention below in conjunction with accompanying drawing.In the accompanying drawing:
Fig. 1 illustrates according to driver of the present invention.
Specific implementation
Embodiment below in conjunction with a driver describes the present invention.
Fig. 1 illustrates the part of driver, and this driver is used for the particularly such lighting apparatus of fluorescent lamp.Here, the driver that is used for lighting apparatus has inverter, this inverter can have at least one ACTIVE CONTROL switch Q30, Q31, described ACTIVE CONTROL switch is provided with direct voltage, resonance output circuit with at least one inductor Lr is connected this ACTIVE CONTROL switch Q30, on the Q31, so that drive at least one lighting apparatus Lamp, wherein, start ACTIVE CONTROL switch Q30 by being coupled with output circuit, Q31, wherein, ACTIVE CONTROL switch Q30, the starting of Q31 is attenuated in the given time, thereby can increase the number of starts of described ACTIVE CONTROL switch.
Described coupling realizes by magnetic coupling, especially realizes by secondary winding being coupled to the inductor CT that connects with described output circuit.
Described decay can realize by the saturated level that reduces inductor CT.
Described decay can realize by connect Ohmic resistance Rb3, Ra3 in the upstream.
The Ohmic resistance Rb3, the Ra3 that are connected the upstream can be by switch Mb1, Mb2 bridge joints after the process scheduled time.The duration of the scheduled time can be scheduled to by timing element Rb2, Cb1, Ra2, Ca1, and timing element Rb2, Cb1, Ra2, Ca1 can be arranged on the upstream of the control input end of switch Mb1, Mb2.
Diode Db1, Db2 can be arranged on timing element Rb2, Cb1; The upstream of Ra2, Ca1, diode Db1, Db2 stop timing element Rb2, Cb1; Ra2, Ca1 discharge via charge path Rb2, Ra2.
ACTIVE CONTROL switch Q30, Q31 can be bipolar transistors or also can be mos field effect transistor (MOSFET) or insulated gate bipolar transistor (IGBT).Sustained diode 30, D31 ACTIVE CONTROL switch Q30, Q31 inverse parallel ground relatively are provided with, and for example flow through in order to take over electric current in the afterflow stage (Freilaufphase).
This scheduled time can be determined the duration of warm-up phase.
Lighting apparatus Lamp can be a fluorescent lamp.
Capacitor Cr can connect with the filament of fluorescent lamp.Thereby the resonance step-up of self-capacitance device Cr and inductor Lr series circuit in the future
Be used for preheating and/or build-up of luminance, can obtain to be enough to the voltage of build-up of luminance lighting apparatus thus in the build-up of luminance stage, and can give filament with enough preheating energy delivery at warm-up phase.
Magnetic coupling can realize that the winding of described transformer can be arranged on the annular core by transformer.Magnetic coupling also can be by obtaining on the inductor Lr that secondary winding directly is coupling in resonance output circuit.
Resonance output circuit can comprise at least one coupling capacitor Cblk1, Cblk2, this coupling capacitor Cblk1, the Cblk2 setting of connecting with the inductor Lr of resonance output circuit.Yet coupling capacitor Cblk1, Cblk2 all can be divided into two capacitors, and these two capacitors are arranged between direct voltage Vdc and the ground connection as capacitor voltage divider, and resonance output circuit is connected on the mid point of these two capacitors.
A plurality of lighting apparatus can connect with series connection and/or parallel way.
Direct voltage Vdc for example can generate by the rectifier that is connected on the AC network, can filter circuit be set in this rectifier upstream.In this rectifier downstream that has connected the active power factor correction circuit is set, for example, boost chopper formula circuit of power factor correction (Boost PFC) or charge pump type circuit of power factor correction (active or passive valley fill circuit) can generate and stable DC voltage Vdc by this circuit of power factor correction at this.This direct voltage Vdc for example also can generate by cell voltage.
Lighting device can use according to driver of the present invention, wherein, can prolong the useful life of employed lighting apparatus by preheating.
Inverter for example can be flyback converter (Flyback Konverter), full-bridge, half-bridge or the push-pull converter (Push-Pull Konverter) of isolating.
The starting circuit of at least one active switch Q31 can be used start-up circuit.This start-up circuit can be made of threshold switch DB3TG, R1, C1.This threshold switch can use diac DB3TG, and this diac has predetermined puncture voltage.
The invention enables a kind of method of utilizing inverter to drive lighting apparatus to become possibility, described inverter has at least one ACTIVE CONTROL switch Q30, Q31, described ACTIVE CONTROL switch Q30, Q31 are to the resonance output circuit power supply with at least one lighting apparatus Lamp, wherein, start this ACTIVE CONTROL switch Q30, Q31 by being coupled with output circuit, wherein, the described starting of this ACTIVE CONTROL switch Q30, Q31 is attenuated in the given time, thereby increases the number of starts of described ACTIVE CONTROL switch.
Claims (13)
1. driver that is used for lighting apparatus, described driver has inverter, described inverter has at least one ACTIVE CONTROL switch (Q30, Q31), described ACTIVE CONTROL switch is provided with direct voltage, resonance output circuit with at least one inductor (Lr) is connected on the described ACTIVE CONTROL switch, so that drive at least one lighting apparatus (Lamp), wherein, by starting described ACTIVE CONTROL switch (Q30, Q31) with the coupling of described output circuit
Described driver is characterised in that,
The described starting of described ACTIVE CONTROL switch (Q30, Q31) is attenuated in the given time, thereby increases the number of starts of described ACTIVE CONTROL switch.
2. driver according to claim 1 is characterized in that, described coupling realizes by magnetic coupling, especially realizes by secondary winding being coupled to the inductor (CT) of connecting with described output circuit.
3. driver according to claim 1 and 2 is characterized in that, described decay realizes by the saturated level that reduces described inductor (CT).
4. driver according to claim 3 is characterized in that, described decay realizes by connect Ohmic resistance (Rb3, Ra3) in the upstream.
5. driver according to claim 4 is characterized in that, the described Ohmic resistance (Rb3, Ra3) that is connected the upstream through after the scheduled time by switch (Mb1, Mb2) bridge joint.
6. driver according to claim 5 is characterized in that, the duration of the described scheduled time is by timing element (Rb2, Cb1; Ra2, Ca1) be scheduled to described timing element (Rb2, Cb1; Ra2, Ca1) be arranged on the upstream of the control input end of described switch (Mb1, Mb2).
7. driver according to claim 6 is characterized in that, diode (Db1, Db2) is arranged on described timing element (Rb2, Cb1; Ra2, Ca1) the upstream, described diode (Db1, Db2) stops described timing element (Rb2, Cb1; Ra2, Ca1) discharge via charge path (Rb2, Ra2).
8. according to the described driver of one of aforementioned claim, it is characterized in that the described scheduled time has been determined the duration of warm-up phase.
9. according to the described driver of one of aforementioned claim, it is characterized in that described lighting apparatus (Lamp) is a fluorescent lamp.
10. according to the described driver of one of aforementioned claim, it is characterized in that capacitor (Cr) is connected with the filament of described fluorescent lamp.
11., it is characterized in that magnetic coupling realizes that by transformer the winding of described transformer is arranged on the annular core according to the described driver of one of aforementioned claim.
12. a lighting device is characterized in that, adopts according to the described driver of one of aforementioned claim.
13. method of utilizing inverter to drive lighting apparatus, described inverter has at least one ACTIVE CONTROL switch (Q30, Q31), described ACTIVE CONTROL switch (Q30, Q31) is to the resonance output circuit power supply with at least one lighting apparatus (Lamp), wherein, start described ACTIVE CONTROL switch (Q30, Q31) by being coupled with described output circuit
Described method is characterised in that,
The described starting of described ACTIVE CONTROL switch (Q30, Q31) is attenuated in the given time, thereby increases the number of starts of described ACTIVE CONTROL switch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT745/2008 | 2008-12-23 | ||
| AT7452008 | 2008-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101808446A true CN101808446A (en) | 2010-08-18 |
Family
ID=42243751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910263603A Pending CN101808446A (en) | 2008-12-23 | 2009-12-23 | Starting circuit for lighting apparatus driver |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101808446A (en) |
| DE (1) | DE102009055179A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192125Y (en) * | 1994-06-20 | 1995-03-15 | 索玉升 | Preheating starting type electronic ballast |
| CN1110863A (en) * | 1994-04-22 | 1995-10-25 | 黄添荣 | Electronic ballast of fluorescent lamp |
| CN1179077A (en) * | 1996-09-19 | 1998-04-15 | 通用电气公司 | High voltage integrated circuit driven semibridge gas discharge lamp ballast |
| US5825136A (en) * | 1996-03-27 | 1998-10-20 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Circuit arrangement for operating electric lamps, and an operating method for electronic lamps |
| CN200947697Y (en) * | 2006-09-19 | 2007-09-12 | 李英 | HID lamp hot-striking electronic blast device |
| CN101075791A (en) * | 2007-03-21 | 2007-11-21 | 崇贸科技股份有限公司 | Current mode resonance inverter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3835533A1 (en) | 1988-10-19 | 1990-04-26 | Hueco Gmbh | Electronic starting device for starting fluorescent lamps in radio-frequency operation |
-
2009
- 2009-12-22 DE DE102009055179A patent/DE102009055179A1/en not_active Withdrawn
- 2009-12-23 CN CN200910263603A patent/CN101808446A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110863A (en) * | 1994-04-22 | 1995-10-25 | 黄添荣 | Electronic ballast of fluorescent lamp |
| CN2192125Y (en) * | 1994-06-20 | 1995-03-15 | 索玉升 | Preheating starting type electronic ballast |
| US5825136A (en) * | 1996-03-27 | 1998-10-20 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Circuit arrangement for operating electric lamps, and an operating method for electronic lamps |
| CN1179077A (en) * | 1996-09-19 | 1998-04-15 | 通用电气公司 | High voltage integrated circuit driven semibridge gas discharge lamp ballast |
| CN200947697Y (en) * | 2006-09-19 | 2007-09-12 | 李英 | HID lamp hot-striking electronic blast device |
| CN101075791A (en) * | 2007-03-21 | 2007-11-21 | 崇贸科技股份有限公司 | Current mode resonance inverter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009055179A1 (en) | 2010-07-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100818 |