CN101233791A - 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
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- CN101233791A CN101233791A CNA2006800278294A CN200680027829A CN101233791A CN 101233791 A CN101233791 A CN 101233791A CN A2006800278294 A CNA2006800278294 A CN A2006800278294A CN 200680027829 A CN200680027829 A CN 200680027829A CN 101233791 A CN101233791 A CN 101233791A
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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
- H05B41/288—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
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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
- H05B41/288—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
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- 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
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The device (1) has a source circuit (11) supplying a primary voltage pulse, and an ignition circuit (12) supplying an ignition voltage pulse. An inductive coupling unit (13) inductively couples the primary voltage pulse in the ignition circuit for producing the ignition voltage pulse. The inductive coupling unit has a voltage transmission ratio that is selected from a range of 1/25 to 1/400. An independent claim is also included for a method for igniting a discharge lamp.
Description
Technical field
The present invention relates to a kind of being used for lights the lighting circuit that potential pulse is lighted at least one discharge lamp by apply electricity to discharge lamp, wherein this lighting circuit has following feature: at least one source circuit, be 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.Except lighting circuit, also provide a kind of and be used to adopt this lighting circuit to light the method for 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.From this stage (at 1 minute after 4 minutes) discharge lamp enter expectation, the running status of heating highly, 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.Light potential pulse thus and be 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 is constructed so that and produces stack and light discharge lamp thus when maximum is responsible for lighting voltage.
Known lighting circuit is made up of the inductance coupling high element of lighting loop (lighting oscillation circuit, secondary oscillation circuit) and lighting the transformer form of source circuit, oscillation circuit form basically.Discharge lamp is with to light oscillation circuit electricity in parallel.In source circuit, produce the primary voltage pulse.The primary voltage pulse is coupled to lights in the oscillation circuit by lighting transformer.In lighting oscillation circuit, form and light potential pulse.The guiding discharge lamp lights thus.The transformer of lighting of the parts of lighting circuit, especially inductance coupling high element 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 lighting circuit that is used to light discharge lamp for example is embodied as so-called electric ballast (EVG).EVG makes discharge lamp to move in its best voltage range, current range and frequency range 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 produce electric arcing from several hectovolts to several kilovolts the interior electrode of lamp.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 to cool off before lighting again.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 to be solved in the present invention provides a kind of lighting circuit, also can light discharge lamp even this lighting circuit was applicable in the cooling time of lamp.
In order to solve this technical problem, provide a kind of and light the lighting circuit that potential pulse is lighted at least one discharge lamp by apply electricity to discharge lamp, wherein this lighting circuit has following feature: at least one source circuit, be 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 lighting 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 lighting circuit by applying the method that potential pulse is lighted discharge lamp of lighting, has following method step: a) form the oscillation circuit of lighting, b) in lighting oscillation circuit, produce and light potential pulse with discharge lamp in parallel.
The interior electrode of discharge lamp or discharge lamp is connected to other parts and lights oscillation circuit.Light the loop and have the reaction part that all need.By the high transformation ratio and the voltage overshoot of resonance, this voltage overshoot is being lighted the loop or is being occurred in coupling element, produces to have very the high frequency of peak voltage and light pulse in lighting the loop.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 light discharge lamp based on high transformation ratio when the temperature of discharge lamp is higher.
Light to improve by 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 successfully lighting in certain period of time.
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 oscillation circuit.The primary voltage pulse that forms in the source circuit is coupled to lights in the oscillation 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 oscillation circuit obviously worsens.Lighting oscillation 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 and the primary inductance electrical connection 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 the further decoupling of oscillation circuit and source circuit in addition.Make thus to light to form in the oscillation 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 lighting 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 oscillations loop.Utilize the coupled oscillations loop can remove coupling transformer.But preferably, coupling transformer is set, and the coupled oscillations loop will light transformer and coupling transformer is electrically connected to each other.The coupled oscillations loop is also referred to as cavity resonance loop (Tankresonanzkreis).This coupled oscillations loop adds coupling transformer and lights between the transformer, makes the coupled oscillations loop be responsible for lighting the resonance of Secondary winding of transformer.The voltage overshoot of resonance takes place in the coupled oscillations loop, and this voltage overshoot is by the primary voltage pulse-triggered of source circuit.On the contrary, lighting the loop is not to be designed to light oscillation 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 by 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 by suitable electric capacity or inductive connection itself, perhaps additionally causes transformation by 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 CoolMOS 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 selecting from E class, D class or DE class.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 lighting circuit is lower.Another advantage is that the output voltage of this switching stage need not other tuning just energy approximately linear ground to be changed along with the direct voltage of powering to this switching stage.This makes can regulate high frequency voltage by 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 by 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 adopts in the E class.
This lighting 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.Pressure clings in 200 scopes of clinging to 100 and changes in ultra-high pressure discharge lamp.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 lighting 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 lighting 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
Explain the present invention in detail by a plurality of embodiment and accompanying drawing below.
Fig. 1,2,3A, 3B illustrate the circuit diagram of the different embodiment of lighting 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 lighting circuit 1 of discharge lamp 2 is implemented in high-pressure discharge lamp 2 by applying electricity.High-pressure discharge lamp 2 is the VIP discharge lamps with 120W power.Replace in the execution mode at it, the VIP discharge lamp has the power of 100W or 300W.
The critical piece of lighting 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 by 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.Be formed for the plasma of the heating being responsible for lighting thus.
For the plasma that keeps generating heat, sine-shapedly be responsible for lighting voltage and control high-pressure discharge lamp 2 by 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.
Provide suitable direct voltage by power voltage supply unit 111 to source circuit 11.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 CoolMOS transistors.Replace in the execution mode at it, 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 lighting 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.By 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 Figure 1.13 of inductance coupling high elements are formed by lighting transformer 131.Light transformer 131 described 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 oscillation circuit 121.Primary inductance 1311 by lighting transformer 131 and secondary inductance 1312 are coupled to the primary voltage pulse to be lighted in the oscillation 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 Figure 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 by 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 oscillation circuit 121.Realized a part of transformation ratio by 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 topological structure in parallel.
Example 3:
Affiliated circuit diagram illustrates with Fig. 3 A and 3B.Lighting loop 12 is not to be embodied as to light oscillation 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 in order inductively to produce in lighting loop 12, inductance coupling high element 13 has cavity resonance loop (coupled oscillations loop) 133.Cavity resonance loop 133 has capacitor voltage divider (Fig. 3 A).Replace, 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 by 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 Figure 4.The HF switch level of this class has two high frequency switching transistors 113.Each high frequency switching transistor can be controlled with the high frequency drive circuit 114 of oneself.
Claims (17)
1. light potential pulse and light the lighting circuit of at least one discharge lamp (2) (1) by apply electricity to discharge lamp for one kind, wherein this lighting circuit has following feature:
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,
Described inductance coupling high element has the transformation ratio of selecting from 1/25 to 1/400 the scope that is used for changing voltage.
2. lighting circuit according to claim 1 is selected the scope of wherein said transformation ratio from 1/40 to 1/200, especially selects from 1/40 to 1/70 the scope.
3. lighting circuit according to claim 1 and 2, wherein said inductance coupling high element have at least one and light transformer (131).
4. lighting circuit according to claim 3, the wherein said transformer of lighting is the HF-HV transformer with ferromagnetic core.
5. according to each described lighting circuit in the claim 1 to 4, the wherein said loop of lighting comprises having the oscillation circuit of lighting that is lower than 100 quality factor Q.
6. according to each described lighting circuit in the claim 1 to 5, wherein said inductance coupling high element has at least one coupling transformer (132).
7. according to each described lighting circuit in the claim 1 to 6, wherein said inductance coupling high element has at least one coupled oscillations loop (133).
8. lighting circuit according to claim 7, wherein said coupled oscillations loop (133) will light transformer and coupling transformer is electrically connected to each other.
9. according to each described lighting circuit in the claim 1 to 8, wherein said source circuit has the HF switch element (112) of energy switch unloading in order to produce the primary voltage pulse.
10. according to each described lighting circuit in the claim 1 to 9, wherein said source circuit has a kind of topological structure of selecting from E class, D class or DE class.
11. one kind is used for adopting according to each described lighting circuit of claim 1 to 10 and lights the method that potential pulse is lighted discharge lamp by applying, and has following method step:
A) form the oscillation circuit of lighting with discharge lamp in parallel,
B) potential pulse is lighted in generation in lighting oscillation circuit.
12. method according to claim 11, wherein producing crest voltage and be 10kV is the light potential pulse of 15kV to 25kV to the potential pulse of lighting, the especially crest voltage of 50kV.
13. according to claim 11 or 12 described methods, wherein producing pulse sequence frequency and be 0.5MHz is the light potential pulse of 0.9MHz to 10MHz to the potential pulse of lighting, the especially pulse sequence frequency of 30MHz.
14. according to each described method in the claim 11 to 13, 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.
15. according to each described method in the claim 11 to 14, wherein utilize to be in 50Hz, especially be in 100Hz and produce the described potential pulse of lighting to the repetition rate in the 1kHz scope to the interior repetition rate of 10kHz scope.
16. according to each described method in the claim 11 to 15, wherein said lighting when the light temperature of discharge lamp surpasses 500 ℃ carried out.
17., wherein adopt high-pressure discharge lamp, especially ultra-high pressure discharge lamp as discharge lamp according to each described method in the claim 11 to 16.
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 true CN101233791A (en) | 2008-07-30 |
| CN101233791B 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 |
|---|---|---|---|---|
| EP2030487A1 (en) * | 2006-05-31 | 2009-03-04 | Koninklijke Philips Electronics N.V. | Method and system for operating a gas discharge lamp |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1240149B (en) * | 1990-03-23 | 1993-11-27 | Carello Spa | VEHICLE PROJECTOR, IN PARTICULAR VEHICLES. |
| FR2693074B1 (en) * | 1992-06-26 | 1994-08-19 | Valeo Vision | Device for a discharge lamp intended to equip a vehicle headlamp and headlamp equipped with such a device. |
| 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 |
| DE69610049T2 (en) * | 1995-03-01 | 2001-04-12 | Koninklijke Philips Electronics N.V., Eindhoven | CIRCUIT ARRANGEMENT FOR IGNITING A HIGH PRESSURE GAS DISCHARGE LAMP |
| 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 EP EP06849378A patent/EP1911333A1/en not_active Withdrawn
- 2006-07-27 JP JP2008523253A patent/JP4910111B2/en not_active Expired - Fee Related
- 2006-07-27 WO PCT/EP2006/007469 patent/WO2007087836A1/en active Application Filing
- 2006-07-27 KR KR1020087004926A patent/KR20080036124A/en active IP Right Grant
- 2006-07-27 CN CN2006800278294A patent/CN101233791B/en not_active Expired - Fee Related
- 2006-07-27 CA CA002616573A patent/CA2616573A1/en not_active Abandoned
- 2006-07-28 TW TW095127575A patent/TW200715912A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080036124A (en) | 2008-04-24 |
| CN101233791B (en) | 2012-04-11 |
| CA2616573A1 (en) | 2007-08-09 |
| WO2007087836A1 (en) | 2007-08-09 |
| JP2009503773A (en) | 2009-01-29 |
| DE102005035745A1 (en) | 2007-02-01 |
| TW200715912A (en) | 2007-04-16 |
| JP4910111B2 (en) | 2012-04-04 |
| EP1911333A1 (en) | 2008-04-16 |
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