CN101233791B - Ignition circuit for igniting a discharge lamp and method for igniting the discharge lamp - Google Patents
Ignition circuit for igniting a discharge lamp and method for igniting the discharge lamp Download PDFInfo
- Publication number
- CN101233791B CN101233791B CN2006800278294A CN200680027829A CN101233791B CN 101233791 B CN101233791 B CN 101233791B CN 2006800278294 A CN2006800278294 A CN 2006800278294A CN 200680027829 A CN200680027829 A CN 200680027829A CN 101233791 B CN101233791 B CN 101233791B
- Authority
- CN
- China
- Prior art keywords
- lighting
- discharge lamp
- light
- circuit
- pulse
- 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.)
- Expired - Fee Related
Links
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
- H05B41/288—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 and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/2881—Load circuits; Control thereof
-
- 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
- H05B41/288—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 and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
-
- 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
- H05B41/02—Details
- H05B41/04—Starting switches
- H05B41/042—Starting switches using semiconductor devices
-
- 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
-
- 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
- H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
-
- 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
- H05B41/288—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 and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/2885—Static converters especially adapted therefor; Control thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Abstract
The invention provides an ignition circuit for igniting at least one discharge lamp by applying an electrical ignition voltage pulse to the discharge lamp, wherein the ignition circuit has the following features: at least one source circuit for providing an electrical primary voltage pulse, at least one ignition circuit for providing the ignition voltage pulse and at least one inductive coupling element for inductively coupling the primary voltage pulse into the ignition circuit for producing the ignition voltage pulse. The ignition circuit is characterized by the fact that the inductive coupling element has a voltage transformation ratio which is selected from the range of 1/25 to 1/400. In addition, the invention also specifies a method for igniting a discharge lamp by applying an ignition voltage pulse using the ignition circuit according to one of the preceding claims having the following method steps: a) forming a resonant ignition circuit with a discharge lamp connected in parallel, b) producing the ignition voltage pulse in the resonant ignition circuit. The ignition circuit is used in particular for igniting VIP lamps, wherein the VIP lamps can be ignited again even in the operationally hot state at temperatures of from 500 DEG C to 1000 DEG C.
Description
Technical field
The present invention relates to a kind of being used for lights the some brightening circuit that potential pulse is lighted at least one discharge lamp through apply electricity to discharge lamp; Wherein this brightening circuit has following characteristic: at least one source circuit; Be used to provide electric primary voltage pulse, at least one lights the loop, is used to provide light potential pulse; And at least one inductance coupling high element, be used for the primary voltage pulse induction be coupled to and light the loop and light potential pulse with generation.Except a brightening circuit, also provide a kind of and be used to adopt this brightening circuit to give me a little the method for bright discharge lamp.
Background technology
The discharge lamp of the above-mentioned type is open by EP0903967A1 and EP0987928A1 respectively.When lighting discharge lamp, to the gas ionization in the lamp combustion chamber (Lampenbrennkammer) of discharge lamp.This gas for example is made up of mercuryvapour.Produce the plasma of conduction.These ions cause the first time of discharge lamp luminous.In order to keep the interior electrode of luminous and rapid heating lamp combustion chamber, for example use sine-shaped alternating current (being responsible for the some light current) to control discharge lamp.The frequency of this alternating current for example is 200kHz.Responsible some light current of discharge lamp at room temperature for example is 150V to 500V.Through being in be responsible for (being lower than one second to several seconds) after the time of lighting of second order of magnitude scope, can apply the running current of reality.This running current is sine-shaped, perhaps has the shape of similar rectangle.Needed for this reason working voltage for example is 15V to 225V.Begin (at 1 minute after 4 minutes) discharge lamp from this stage and get into running status expectation, that highly heat, it has very high internal pressure in the lamp combustion chamber, have the highest luminous efficiency and the emission spectrum in broadband.
In order to light, with the interior electrode of the lamp combustion chamber of lighting potential pulse control discharge lamp.This has produced electric arcing, and this arcing causes ionisation of gas.Light the bag (potential pulse curve) that potential pulse is made up of a plurality of potential pulses.The pulse sequence frequency of the potential pulse in the potential pulse curve is 1MHz to 10MHz.In order to light discharge lamp, need have the potential pulse of lighting that is in the interior peak pressure of kV scope.Lighting potential pulse thus is the high-voltage pulse curve string (high pressure RF pulse train) in high-frequency range.Utilize this high-voltage pulse curve string during lighting process, to superpose and be responsible for lighting voltage.Lighting circuit structure produces stack and lights discharge lamp thus for making when maximum is responsible for lighting voltage.
Known some brightening circuit is made up of the inductance coupling high element of lighting loop (lighting resonant circuit, the secondary resonance circuit) and lighting the transformer form of source circuit, forms basically.Discharge lamp is with to light resonant circuit electricity parallelly connected.In source circuit, produce the primary voltage pulse.The primary voltage pulse is coupled to lights in the resonant circuit by lighting transformer.In lighting resonant circuit, form and light potential pulse.The guiding discharge lamp lights thus.The transformer of lighting of parts, especially the inductance coupling high element of some brightening circuit designs like this, makes that the quality factor q of lighting resonant circuit is high as far as possible.The size of quality factor q surpasses 100.
The point brightening circuit that is used to light discharge lamp for example is embodied as so-called electric ballast (EVG).EVG makes discharge lamp in its best voltage range, current range and frequency range, to move from the available line voltage transfer electric energy that swaps out.Discharge lamp for example is high-voltage lamp or the uhp lamp as video and projection lamp (VIP lamp).
When light temperature is relatively lower (for example in room temperature, about 20 ℃), the crest voltage of lighting potential pulse just is enough to the interior electrode of lamp, produce electric arcing from several hectovolts to several kilovolts.The temperature of lamp is high more, and it is just high more to light the needed crest voltage of high-voltage lamp or uhp lamp.For the VIP lamp, 950 ℃ to 1050 ℃ operating temperature appears usually.Very high when producing between the interior electrode that electric arcing is needed lights voltage in this temperature, because the gas in the lamp combustion chamber causes very strong ionization owing to occupying leading gas pressure.This causes the VIP lamp before lighting again, to cool off.The temperature of combustion chamber must be reduced to about 500 ℃ in present ballast.The burner operating temperature of VIP lamp begins to cool down 500 ℃ from about 1000 ℃ approximately will continue 30 seconds.In 30 seconds cooling time, if there be not lighting (heat is lighted) again again and will failing of other measure VIP lamp.
Summary of the invention
The technical problem that the present invention will solve provides a kind of some brightening circuit, also can light discharge lamp even this brightening circuit was applicable in the cooling time of lamp.
In order to solve this technical problem; Provide a kind of and light the some brightening circuit that potential pulse is lighted at least one discharge lamp through apply electricity to discharge lamp, wherein this brightening circuit has following characteristic: at least one source circuit is used to provide electric primary voltage pulse; At least one lights the loop; Be used to provide and light potential pulse, and at least one inductance coupling high element, be used for the primary voltage pulse induction be coupled to and light the loop and light potential pulse with generation.This brightening circuit is characterised in that, the transformation ratio of the voltage transitions that the inductance coupling high element is had from smaller or equal to 1/25 more than or equal to selecting 1/400 the scope.Preferably, this transformation ratio from smaller or equal to 1/40 more than or equal to selecting 1/200 the scope, especially from smaller or equal to 1/40 more than or equal to selecting 1/70 the scope.
In order to solve this technical problem; Providing a kind of is used to adopt according to above-mentioned some brightening circuit through applying the method that potential pulse is lighted discharge lamp of lighting; Has following method step: a) form the resonant circuit of lighting, b) in lighting resonant circuit, produce and light potential pulse with parallelly connected discharge lamp.
The interior electrode of discharge lamp or discharge lamp is connected to other parts and lights resonant circuit.Light the loop and have the reaction part that all need.Through the voltage overshoot of high transformation ratio resonant, this voltage overshoot is being lighted the loop or in coupling element, is being occurred, and in lighting the loop, produces to have very the high frequency of peak voltage and light pulse.Preferably, produce crest voltage more than or equal to 10kV smaller or equal to the potential pulse of lighting, the especially crest voltage of 50kV more than or equal to 15kV smaller or equal to the potential pulse of lighting of 25kV.
Generation has the high frequency voltage pulse at the pulse sequence frequency of MHz scope.In preferred embodiment, produce pulse sequence frequency more than or equal to 0.5MHz smaller or equal to the potential pulse of lighting, the especially pulse sequence frequency of 30MHz more than or equal to 0.9MHz smaller or equal to the potential pulse of lighting of 10MHz.Pulse sequence frequency with 1.5MHz can reach good especially effect.
Utilize this pulse sequence frequency and high voltage to keep the pulse duration of lighting of lighting potential pulse shorter.Light the pulse duration less than 50 μ s.In special execution mode, produce have more than or equal to 5 μ s smaller or equal to the potential pulse of lighting of lighting the pulse duration in the scope of 30 μ s.Especially lighting the pulse duration can be less than 20 μ s.This relatively short potential pulse of lighting is enough to when the temperature of discharge lamp is higher, light discharge lamp based on high transformation ratio.
Light to improve through frequent repeating and light probability.Therefore according to another execution mode, utilize to be in more than or equal to 50Hz smaller or equal to the repetition rate in the 10kHz scope (repetition rate), especially be in more than or equal to 100Hz to produce and light potential pulse smaller or equal to the repetition rate in the 1kHz scope.Utilizing this repetition rate will light potential pulse is coupled to and lights in the loop.Utilization is than higher repetition rate, and for example 1kHz improves the probability of in certain period of time, successfully lighting.
The inductance coupling high element has at least one and lights transformer.Light transformer and comprise primary inductance with at least one elementary winding and secondary inductance with at least one secondary winding.The secondary inductance of lighting transformer is to light the building block in loop.Lighting the loop may be embodied as and light resonant circuit.The primary voltage pulse that forms in the source circuit is coupled to lights in the resonant circuit by lighting transformer.Preferably, light transformer is the HF-HV transformer with ferromagnetic core (for example ferromagnetic or ferrocart core) for this reason.This HF-HV transformer designs like this, makes the voltage transitions that this transformer individual responsibility is high.Thereby the HF-HV transformer for example is the transformer with 25kV output voltage.Utilize the transformer of lighting of constructing like this, can accept to light the quality factor that resonant circuit obviously worsens.Lighting resonant circuit has and is lower than 100 quality factor Q.
The inductance coupling high element can have the transformer of lighting of respective design separately.In special execution mode, the inductance coupling high element has at least one coupling transformer.Light transformer and coupling transformer is electrically connected to each other, make them form the inductance coupling high element together.For this reason, according to special execution mode, light transformer and coupling transformer is connected in series.The primary inductance of coupling transformer can be the building block of source circuit.The secondary inductance of coupling capacitor is electrically connected with the primary inductance of lighting transformer.The secondary inductance of lighting transformer is again to light the building block of resonant tank.
Coupling transformer is used for matching voltage.This high transformation ratio that causes the inductance coupling high element is by lighting transformer and coupling transformer provides together.This transformation ratio is not only from lighting transformer.This makes the contribution of lighting transformer reduce.This secondary inductance and secondary winding that causes lighting transformer can keep lessly.Bring following special benefits thus: the Ohmic resistance of secondary winding owing to winding quantity seldom and the conductor length that shortens thus reduce.This Ohmic resistance is also flow through by the running current of discharge lamp, and has therefore avoided lasting loss power.Coupling transformer causes lighting further decoupling of resonant circuit and source circuit in addition.Make thus to light to form in the resonant circuit and light the needed resonance potential overshoot of potential pulse and become and be easy to generate.
In the favourable design of other parts of a brightening circuit, utilize the combination of being showed of lighting transformer and coupling transformer, can reach the potential pulse of lighting that has above the crest voltage of 30kV.In other words, this is the voltage (supposing that voltage roughly becomes sinusoid in this case) that has 60kVss (being 60kVpp) to negative maximum from positive maximum.
In particular embodiment, the inductance coupling high element has at least one coupled resonant circuit.Utilize coupled resonant circuit can remove coupling transformer.But preferably, coupling transformer is set, and coupled resonant circuit will light transformer and coupling transformer is electrically connected to each other.Coupled resonant circuit is also referred to as cavity resonance loop (Tankresonanzkreis).This coupled resonant circuit adds coupling transformer and lights between the transformer, makes coupled resonant circuit be responsible for lighting the resonance of Secondary winding of transformer.The voltage overshoot of resonance takes place in coupled resonant circuit, and this voltage overshoot is through the primary voltage pulse-triggered of source circuit.On the contrary, lighting the loop is not to be designed to light resonant circuit.The voltage overshoot of resonance does not take place at this.Only on the interior electrode of discharge lamp, produce and light potential pulse through lighting transformer.In this embodiment, light the transformation ratio that transformer neither provide whole inductance coupling high element separately.The size of transformation ratio depends on the design in cavity resonance loop extremely consumingly, and this cavity resonance loop causes transformation through suitable electric capacity or inductive connection itself, perhaps additionally causes transformation through preposition coupling transformer by means of this coupling transformer.For example, the voltage that 2kV to 10kV is developed in the cavity resonance loop.Light moderately transformation of transformer thus.Can abandon coupling transformer according to the source circuit type.
Source circuit has suitable HF switch element.This HF switch element has one or more high frequency switching transistors.High frequency switching transistor is (power) MOS transistor, especially
Transistor or powerMESH
TMTransistor or FDmesh
TMTransistor or carborundum FET transistor.
Source circuit provides very high power in the pulse duration.Source circuit designs like this, and promptly average primary power is between 300W to 2kW.This causes being used for the current impulse of high frequency switching transistor conduction peak current between 10A to 100A of switch.Efficient is wanted enough height for this reason.The price of high frequency switching transistor depends on its current capacity consumingly.The efficient of source circuit is high more, and the current capacity of high frequency switching transistor can be selected lowly more.
In special execution mode, source circuit have for the primary voltage pulse is provided can switch the HF switch element of unloading.This often means that the instantaneous voltage of connecting at switch element that applies and the electric current of conduction equal or approach 0.The loss power spike that can avoid meeting usually in switching process, occur in this way.This makes source circuit have extra high efficient.Another significant advantage of switch unloading is, avoids near switching frequency and far surpass occurring strong electromagnetic interference component (problem) in the frequency spectrum of switching frequency.
Preferably, source circuit has a kind of topological structure of from E class, D class or DE class, selecting.E class and DE class are characterised in that good especially switch unloading.Because the unloading of big switch, the electrolytic capacitor that need be used for source circuit usually as the power supply buffer can keep very for a short time.In addition, only need a high frequency switching transistor for this switching stage, this high frequency switching transistor is because the efficient that increases only need have limited current capacity.Make that thus the price of some brightening circuit is lower.Another advantage is that the output voltage of this switching stage need not other tuning just ability approximately linear ground to be changed along with the direct voltage of supplying power to this switching stage.This makes can regulate high frequency voltage through the preposition electric supply installation of source circuit.
There is two types E class: can connect a parallel circuits or a series circuit at transistor drain end or collector terminal.Second kind of solution is characterised in that, can drive with very little supply power voltage.Can adopt thus and have smaller high current transistor by ability.
Extraordinary switch unloading also can reach through the HF switch level of DE class.The half-bridge that such basis is made up of two switching transistors.The switching transistor that is adopted need be starkly lower than the compressive resistance of the switching transistor that in the E class, adopts.
This brightening circuit especially is applied among the EVG of high-pressure discharge lamp and ultra-high pressure discharge lamp, and this high-pressure discharge lamp and ultra-high pressure discharge lamp are used in video and the shadow casting technique.For high-pressure discharge lamp, the pressure of 2 crust to 20 crust appears in the lamp combustion chamber.In ultra-high pressure discharge lamp pressure 100 cling to 200 the crust scope in change.Target at this is the emission spectrum that reaches wide as far as possible.The power of VIP lamp between 100W to 300W, 120W for example.It is also conceivable that higher and lower power.Utilize this brightening circuit to surpass 500 ℃ and in reaching 1000 ℃ hot running status, light this discharge lamp in temperature.
The present invention has provided following major advantage in a word:
-utilize the some brightening circuit, even when the high temperature that surpasses 500 ℃, also can light discharge lamp again.After interrupting discharge lamp luminous, need not cool off for new lighting.Can not occur lighting intermittently.
-utilizing the present invention to abandon to light auxiliary electrode, this is lighted auxiliary electrode and is generally used for keeping at present common lighting intermittently.
Description of drawings
Below by a plurality of embodiment and the present invention of accompanying drawing illustrated in detail.
Fig. 1,2,3A, 3B illustrate the circuit diagram of the different embodiment of a brightening circuit.
Fig. 4 illustrates the circuit diagram of the HF switch level of DE class.
Embodiment
Be used for lighting potential pulse and lighting the EVG that the some brightening circuit 1 of discharge lamp 2 is implemented in high-pressure discharge lamp 2 through applying electricity.High-pressure discharge lamp 2 is the VIP discharge lamps with 120W power.In its replacement execution mode, the VIP discharge lamp has the power of 100W or 300W.
The critical piece of some brightening circuit 1 is the source circuit 11 that is used to provide the primary voltage pulse, be used to provide light potential pulse light loop 12, and be used for the primary voltage pulse induction be coupled to the inductance coupling high element 13 of lighting loop 12.Light potential pulse through the primary voltage pulse being coupled to light to have produced in the loop 12.
The interior electrode 22 that high-pressure discharge lamp 2 is arranged in the lamp combustion chamber 21 is parts of lighting loop 12.In lighting loop 12, produce light potential pulse cause in electric arcing between the electrode 22.The 21 gas inside ionization of lamp combustion chamber.The plasma of the heating that is formed for thus being responsible for lighting.
For the plasma that keeps generating heat, sine-shapedly be responsible for lighting voltage and control high-pressure discharge lamp 2 through power voltage supply unit 122 usefulness are similar.Be integrated in 150V that the power voltage supply unit 122 among the EVG provides in the 100kHz scope and be responsible for lighting voltage to similar sine-shaped between the 500V.
To source circuit 11 suitable direct voltage is provided through power voltage supply unit 111.Source circuit 11 has HF switch element 112.HF switch element 112 is switch unloadings.This means, be 0 or approach 0 at the instantaneous voltage of connecting that applies and the electric current of conduction.The building block of HF switch element 112 is at least one high frequency switching transistor 113 and at least one high frequency drive circuit 114.High frequency switching transistor 113 is by high frequency drive circuit 114 controls.High frequency switching transistor 113 is
transistors.In its replacement execution mode, adopt powerMESH
TMTransistor or FDmesh
TMTransistor or carborundum FET transistor.High frequency drive circuit 114 provides high-frequency switching signal for high frequency switching transistor 113, this high-frequency switching signal with light the pulse sequence frequency coupling that potential pulse will reach.This means in source circuit 11 produce have with light loop 12 in the primary voltage pulse of lighting potential pulse pulse sequence frequency identical or that be similar to very much.
Produce the high frequency that is used to light discharge lamp 2 by a brightening circuit 1 and light potential pulse.The pulse sequence frequency of lighting potential pulse approximately is 1.5MHz in the first embodiment.According to another execution mode, pulse sequence frequency is 4MHz.The crest voltage of lighting potential pulse is 22kV.This is equivalent to 44kVss (44kVpp).According to another execution mode, the crest voltage of lighting potential pulse is 30kV (60kVss).Lighting the pulse duration is 20 μ s.According to another execution mode, lighting the pulse duration is 5 μ s.
It is about 1/60 transformation ratio that inductance coupling high element 13 has voltage transformation.Through this high transformation ratio, can reach high frequency voltage source with high crest voltage.Can light the VIP high-pressure discharge lamp when the high burner surface temperature that surpasses 500 ℃ based on this high crest voltage.In order successfully to light discharge lamp again, needn't wait for cooling stage.
In order to reach high transformation ratio, provide 3 examples below:
Example 1:
Affiliated circuit diagram is shown in Fig. 1.13 of inductance coupling high elements are formed by lighting transformer 131.Light transformer 131 said high transformation ratio is provided separately.The primary inductance 1311 of lighting transformer 131 is building blocks of source circuit 11.The secondary inductance 1312 of lighting transformer 131 is to light the building block in loop 12, and this is lighted loop 12 and is embodied as and lights resonant circuit 121.Primary inductance 1311 through lighting transformer 131 is coupled to the primary voltage pulse with secondary inductance 1312 to be lighted in the resonant circuit 121.
The HF switch element 112 of source circuit 11 has the HF switch level of E class (series connection topological structure).
Example 2:
Corresponding circuit diagram is shown in Fig. 2.Different with example 1, the inductance coupling high element 13 here also has coupling transformer 132. high transformation ratios except lighting transformer 131 realizes through the coupling of lighting transformer 131 and coupling transformer 132.The primary inductance 1321 of coupling capacitor 132 is building blocks of source circuit 11 for this reason.The secondary inductance 1322 of the interpulse connection over-coupled transformer 132 of primary voltage and the primary inductance 1311 of lighting transformer 131 are coupled to be lighted in the resonant circuit 121.Realized a part of transformation ratio through the corresponding construction of coupling transformer 132.Can reduce to light the branch transformation ratio of transformer 131 thus.The high transformation ratio that keeps whole inductance coupling high element 13 thus.
The HF switch element 112 of source circuit 11 has the HF switch level of E class equally, but has parallelly connected topological structure.
Example 3:
Affiliated circuit diagram illustrates with Fig. 3 A and 3B.Lighting loop 12 is not to be embodied as to light resonant circuit.This means and do not consider parasitic antenna, light loop 12 and can not be excited in lighting the frequency range of potential pulse and vibrate.
Light potential pulse for induction ground in lighting loop 12 produces, inductance coupling high element 13 has cavity resonance loop (coupled resonant circuit) 133.Cavity resonance loop 133 has capacitor voltage divider (Fig. 3 A).Replacement, cavity resonance loop 133 is embodied as the cavity resonance loop (the cavity resonance loop that tap is arranged, Fig. 3 B) with coil that tap is arranged.This cavity resonance loop 133 is connected coupling transformer 132 and lights between the transformer 131 in the expansion according to the coupling element 13 of above-mentioned example.The primary inductance 1311 of lighting transformer is the building blocks in cavity resonance loop 133.Also be responsible in this a part of transformation ratio by the cavity resonance loop.Thereby light transformer 131 and can have littler transformation ratio.
Except above-mentioned example, also there are a plurality of execution modes, it provides through source circuit 11, the corresponding construction of lighting loop 12 or coupling element 13 and building block thereof.Thereby according to the execution mode that is not shown on this, the secondary inductance 1312 of lighting transformer 131 is one.Equally also can consider to surpass two building blocks.In another embodiment, for source circuit 11, can replace having the HF switch element 112 of E class switching stage and adopt HF switch element 112 with DE class switching stage.DE switching stage with series loop topological structure is shown in Fig. 4.The HF switch level of this type has two high frequency switching transistors 113.Each high frequency switching transistor can be used high frequency drive circuit 114 controls of oneself.
Claims (21)
1. light the some brightening circuit (1) that potential pulse is lighted at least one discharge lamp (2) through apply electricity to discharge lamp for one kind, wherein this brightening circuit has following characteristic:
At least one source circuit (11) is used to provide electric primary voltage pulse,
At least one lights loop (12), is used to provide light potential pulse, and
At least one inductance coupling high element (13), be used for the primary voltage pulse induction be coupled to and light the loop and light potential pulse with generation,
It is characterized in that,
Said inductance coupling high element has the transformation ratio of selecting from 1/25 to 1/400 the scope that is used for changing voltage,
Said inductance coupling high element has at least one coupled resonant circuit (133),
The said loop of lighting is to light resonant circuit.
2. a brightening circuit according to claim 1 is selected the scope of wherein said transformation ratio from 1/40 to 1/200.
3. a brightening circuit according to claim 1 is selected the scope of wherein said transformation ratio from 1/40 to 1/70.
4. a brightening circuit according to claim 1 and 2, wherein said inductance coupling high element have at least one and light transformer (131).
5. a brightening circuit according to claim 4, the wherein said transformer of lighting is the HF-HV transformer with ferromagnetic core.
6. a brightening circuit according to claim 1 and 2, the wherein said loop of lighting comprises having the resonant circuit of lighting that is lower than 100 quality factor.
7. a brightening circuit according to claim 1 and 2, wherein said inductance coupling high element has at least one coupling transformer (132).
8. a brightening circuit according to claim 1, wherein said coupled resonant circuit (133) will light transformer and coupling transformer is electrically connected to each other.
9. a brightening circuit according to claim 1 and 2, wherein said source circuit have the HF switch element (112) of ability switch unloading in order to produce the primary voltage pulse.
10. a brightening circuit according to claim 1 and 2, wherein said source circuit have a kind of topological structure of from the group that comprises E class, D class or DE class, selecting.
11. one kind is used for adopting according to each described some brightening circuit of claim 1 to 10 and lights the method that potential pulse is lighted discharge lamp through applying, and has following method step:
A) form the resonant circuit of lighting with parallelly connected discharge lamp,
B) potential pulse is lighted in generation in lighting resonant circuit.
12. method according to claim 11, wherein producing crest voltage is the light potential pulse of 10kV to 50kV.
13. method according to claim 11, wherein producing crest voltage is the light potential pulse of 15kV to 25kV.
14. according to claim 11 or 12 described methods, wherein producing pulse sequence frequency is the light potential pulse of 0.5MHz to 30MHz.
15. according to claim 11 or 12 described methods, wherein producing pulse sequence frequency is the light potential pulse of 0.5MHz to 30MHz.
16. according to claim 11 or 12 described methods, wherein produce have more than or equal to 5 μ s smaller or equal to the potential pulse of lighting of lighting the pulse duration in the scope of 30 μ s.
17., wherein utilize to be in 50Hz and to repeat said generation of lighting potential pulse to the interior repetition rate of 10kHz scope according to claim 11 or 12 described methods.
18., wherein utilize to be in 100Hz and to repeat said generation of lighting potential pulse to the interior repetition rate of 1kHz scope according to claim 11 or 12 described methods.
19. according to claim 11 or 12 described methods, wherein said lighting when the light temperature of discharge lamp surpasses 500 ℃ carried out.
20., wherein adopt high-pressure discharge lamp as discharge lamp according to claim 11 or 12 described methods.
21., wherein adopt ultra-high pressure discharge lamp as discharge lamp according to claim 11 or 12 described methods.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005035745.8 | 2005-07-29 | ||
| DE102005035745A DE102005035745A1 (en) | 2005-07-29 | 2005-07-29 | Discharge lamp e.g. video and projection lamp, igniting device, has coupling unit inductively coupling primary voltage pulse in ignition circuit and including voltage transmission ratio that is selected from certain range |
| PCT/EP2006/007469 WO2007087836A1 (en) | 2005-07-29 | 2006-07-27 | Ignition circuit for igniting a discharge lamp and method for igniting the discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101233791A CN101233791A (en) | 2008-07-30 |
| CN101233791B true CN101233791B (en) | 2012-04-11 |
Family
ID=37074974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800278294A Expired - Fee Related CN101233791B (en) | 2005-07-29 | 2006-07-27 | Ignition circuit for igniting a discharge lamp and method for igniting the discharge lamp |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1911333A1 (en) |
| JP (1) | JP4910111B2 (en) |
| KR (1) | KR20080036124A (en) |
| CN (1) | CN101233791B (en) |
| CA (1) | CA2616573A1 (en) |
| DE (1) | DE102005035745A1 (en) |
| TW (1) | TW200715912A (en) |
| WO (1) | WO2007087836A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100060184A1 (en) * | 2006-05-31 | 2010-03-11 | Koninklijke Philips Electronics N.V. | Method and system for operating a gas discharge lamp |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2693074A1 (en) * | 1992-06-26 | 1993-12-31 | Valeo Vision | Power supply circuit for car headlight discharge bulb - has micro-programmable unidirectional quasi-resonant switch with high voltage transformer producing smoothed output voltage |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1240149B (en) * | 1990-03-23 | 1993-11-27 | Carello Spa | VEHICLE PROJECTOR, IN PARTICULAR VEHICLES. |
| JP3682987B2 (en) * | 1994-02-28 | 2005-08-17 | ハリソン東芝ライティング株式会社 | Discharge lamp lighting device and lighting device |
| JPH088074A (en) * | 1994-06-27 | 1996-01-12 | Matsushita Electric Works Ltd | High-pressure electric discharge lamp lighting device |
| DE4430397A1 (en) * | 1994-08-26 | 1996-02-29 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Circuit arrangement for operating low-pressure discharge lamps |
| CA2189265A1 (en) * | 1995-03-01 | 1996-09-06 | Frans Slegers | Circuit arrangement |
| EP0903967A1 (en) * | 1997-09-19 | 1999-03-24 | Quality Light Electronics S.A.S. Di Francesco Celso E C. | An igniter for discharge lamps |
| JP3829507B2 (en) * | 1997-12-12 | 2006-10-04 | 松下電工株式会社 | Electronic ballast and HID lamp control circuit |
| FR2779288B1 (en) * | 1998-06-02 | 2000-08-18 | Valeo Electronique | POWER SUPPLY MODULE FOR A DISCHARGE LAMP, ESPECIALLY A MOTOR VEHICLE PROJECTOR |
| DE69820619T2 (en) * | 1998-09-15 | 2004-09-23 | Quality Light Electronics S.A.S. Di Francesco Celso E C. | Resonance igniter for discharge lamps |
| DE10206180A1 (en) * | 2002-02-14 | 2003-08-28 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Rod core transformer and lamp base with rod core transformer |
| DE102004020500A1 (en) * | 2004-04-26 | 2005-11-10 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Operating circuit for high-pressure gas discharge lamp has voltage converter supplying load circuit with capacitor in series with secondary winding of ignition transformer of pulse ignition device for lamp |
-
2005
- 2005-07-29 DE DE102005035745A patent/DE102005035745A1/en not_active Withdrawn
-
2006
- 2006-07-27 JP JP2008523253A patent/JP4910111B2/en not_active Expired - Fee Related
- 2006-07-27 CN CN2006800278294A patent/CN101233791B/en not_active Expired - Fee Related
- 2006-07-27 WO PCT/EP2006/007469 patent/WO2007087836A1/en active Application Filing
- 2006-07-27 EP EP06849378A patent/EP1911333A1/en not_active Withdrawn
- 2006-07-27 CA CA002616573A patent/CA2616573A1/en not_active Abandoned
- 2006-07-27 KR KR1020087004926A patent/KR20080036124A/en active IP Right Grant
- 2006-07-28 TW TW095127575A patent/TW200715912A/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2693074A1 (en) * | 1992-06-26 | 1993-12-31 | Valeo Vision | Power supply circuit for car headlight discharge bulb - has micro-programmable unidirectional quasi-resonant switch with high voltage transformer producing smoothed output voltage |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009503773A (en) | 2009-01-29 |
| CN101233791A (en) | 2008-07-30 |
| TW200715912A (en) | 2007-04-16 |
| WO2007087836A1 (en) | 2007-08-09 |
| CA2616573A1 (en) | 2007-08-09 |
| KR20080036124A (en) | 2008-04-24 |
| EP1911333A1 (en) | 2008-04-16 |
| DE102005035745A1 (en) | 2007-02-01 |
| JP4910111B2 (en) | 2012-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7214934B2 (en) | Radio frequency power generator | |
| US7656099B2 (en) | Circuit arrangement for operating high-pressure discharge lamps and operating method for a high-pressure discharge lamp | |
| CN101730360B (en) | High pressure discharge lamp lighting device, and illumination fixture and illumination system using the same | |
| US7176639B2 (en) | Electronic ballast and controlling method thereof | |
| CA2341854A1 (en) | Electronic ballast for discharge lamp with dielectrically impeded discharges | |
| US7863830B2 (en) | Electronic ballast and method for operating an electric lamp | |
| CN101536612A (en) | Starting apparatus for a high-pressure discharge lamp, and a high-pressure discharge lamp with a starting apparatus | |
| CN101233791B (en) | Ignition circuit for igniting a discharge lamp and method for igniting the discharge lamp | |
| Nerone | A novel ballast for electrodeless fluorescent lamps | |
| US6118227A (en) | High frequency electronic drive circuits for fluorescent lamps | |
| CA2341884C (en) | Electronic ballast for discharge lamp with dielectrically impeded discharges | |
| US7884554B2 (en) | Ignition circuit for igniting a discharge lamp and method for igniting the discharge lamp | |
| US6696791B2 (en) | Method for starting a discharge lamp | |
| RU2498541C2 (en) | Inductive supply circuit of gas-discharge lamp | |
| CN1748447B (en) | Electronic pre-connection device | |
| US9111743B2 (en) | Preheating circuit for electronic ballast | |
| JP4453302B2 (en) | Electrodeless discharge lamp lighting device, lighting device | |
| RU2812968C1 (en) | Method for matching high-frequency plasma source with power source | |
| KR100186375B1 (en) | Fluorescence lamp for electronic ballast of filament preheating circuit | |
| KR800001141B1 (en) | Light generation by an electrodeless fluorescent lamp | |
| Yan et al. | The influence of the startup process of small metal-halide (MH) lamps on electronic ballast design | |
| JP2005071828A (en) | Electrodeless discharge lamp lighting device and illumination device | |
| KR200316990Y1 (en) | Electronic ballast for instantaneously re-lighting metal-hallide lamp | |
| KR100443711B1 (en) | Electronic discharge lamp invertor | |
| KR100898525B1 (en) | An induction discharge lamp module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20140727 |
|
| EXPY | Termination of patent right or utility model |