EP2011374A1 - Überlagerungszündgerät für ein vorschaltgerät - Google Patents
Überlagerungszündgerät für ein vorschaltgerätInfo
- Publication number
- EP2011374A1 EP2011374A1 EP07723951A EP07723951A EP2011374A1 EP 2011374 A1 EP2011374 A1 EP 2011374A1 EP 07723951 A EP07723951 A EP 07723951A EP 07723951 A EP07723951 A EP 07723951A EP 2011374 A1 EP2011374 A1 EP 2011374A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transformer
- shaped
- overlay
- core unit
- core
- 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.)
- Withdrawn
Links
- 238000004804 winding Methods 0.000 claims abstract description 28
- 229910000859 α-Fe Inorganic materials 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 239000000088 plastic resin Substances 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims 2
- 239000003990 capacitor Substances 0.000 description 11
- 230000001419 dependent effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- H05B41/02—Details
- H05B41/04—Starting switches
- H05B41/042—Starting switches using semiconductor devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/255—Magnetic cores made from particles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/08—High-leakage transformers or inductances
- H01F38/10—Ballasts, e.g. for discharge lamps
Definitions
- the present invention relates to a Studentslagerungszündsclitis especially for igniting high-pressure discharge lamps required high-frequency pulse transformer.
- ignition pulses are usually transformed by a high-frequency pulse transformer from a primary coil of the transformer into a secondary coil, so that the transformed pulses are applied as high-voltage ignition pulses to electrodes of a connected lamp and lead to the lamp being ignited.
- the secondary coil After ignition, the secondary coil is flowed through by the lamp current flowing in the ignited state of the lamp and, depending on its ohmic resistance, heated.
- the invention is dedicated to the object, a superimposed ignitor with a high-frequency pulse transformer P32903EN 2
- TridonicAtco which is tailored to the special requirements of superimposed ignition devices.
- a superposition ignition device equipped with a high-frequency pulse transformer for igniting at least one high-pressure discharge lamp, wherein the transformer has at least one U-shaped core unit with at least approximately constant effective cross-sectional area and each free leg of the U-shaped core unit as winding body for - At least one coil of the transformer is used, which are electrically isolated from each other or electrically connected to each other in the form of an economy transformer.
- the two free legs of the U-shaped core unit have a round cross-section.
- a plurality of U-shaped core units can be connected to one another in one or more planes, so that either a meander pattern (stringing together in one plane) or a multi-layered stacking of these core units forming a cuboid stack (arrangement in several planes) results.
- the U-shaped core unit (s) is (are) preferably made of a ferrite material.
- the ignitor with the high-frequency pulse transformer can be cast in a cup with plastic resin.
- this cup has a substantially non-square cross-section, which has thermal advantages and thus also advantages in terms of the size of the transformer-specific thermal resistance and thus in relation to the size of the core power loss.
- the present invention relates to a high-frequency pulse transformer having at least one U-shaped core unit for a superposition igniter required for igniting at least one high-pressure discharge lamp, the U-shaped core unit having the aforementioned properties, as well as to the use a U-shaped ferrite core with the above properties for a high-frequency pulse transformer of a 'such Matterlagerungszünd réelles.
- FIG. 1 is a circuit diagram of an operating device having a prior art superposition igniting circuit suitable for igniting an AC-driven high-pressure discharge lamp; P32903EN 4
- Fig. 2a is a perspective view of an E-shaped ferrite core usable for constituting a high-frequency pulse transformer
- FIG. 2b shows a perspective view of a U-shaped ferrite core according to the invention, which can be used to construct a high-frequency pulse transformer.
- FIG. 1 shows a suitable for igniting a high-pressure discharge lamp LA ignition circuit ÜZG a control gear BG, which operates according to the known from the prior art principle of superposition ignition.
- the Matterlagerungszündscloch ÜZG in this case has a high-frequency pulse transformer Tr, the secondary winding Tr 3 is connected in an alternating voltage supply line between the lamp LA and a ballast KVG.
- the series circuit of the secondary winding Tr 3 of the high-frequency pulse transformer Tr and the lamp LA is acting as a high-frequency return element, consisting of a series circuit of a surge capacitor Ci and a Zündangeskondensators C 2 voltage divider with P329O3EN 5
- TridonicAtco an (optional) series resistor R 2 connected in parallel, wherein the surge capacitor Ci in turn a series circuit of the primary winding Tr p of the high-frequency pulse transformer Tr, a preferably symmetrically switching semiconductor power switch and a semiconductor circuit breaker upstream, acting as a high-frequency inductance L R is connected in parallel, which forms a parallel resonant circuit PRK together with the primary winding Tr p of the high-frequency pulse transformer Tr with the Stoßkonden- Ci.
- the series connection of the auxiliary ignition capacitor C 2 and the aforementioned ohmic resistor R 2 , a charging resistor Ri is connected in parallel, via which the surge capacitor Ci is charged.
- FIG. 1 by way of example as a controlled via a diac trigger diode Dc triac Tc symmetrically switching semiconductor power switch can be used as a four-layer diode (thyristor); Bidirectional thyristor diode (Diac or Sidac) or thyristor triode (Triac) be realized. Also conceivable is the use of a gas gap or a controllable via a rectifier bridge high-voltage transistor in the form of a bipolar power transistor or field effect power transistor.
- the surge capacitor Ci is charged via the parallel circuit formed from the series circuit of the auxiliary ignition capacitor C 2 and the ohmic resistor R 2 on the one hand and the charging resistor Ri on the other hand, until the voltage applied to the Diac trigger diode Dc voltage U Dc the switching voltage of the diac, thereby breaking the diac trigger diode and switching the triac Tc to a low impedance state (gating operation).
- the triac Tc of the surge capacitor Ci By switching the triac Tc of the surge capacitor Ci is short-circuited via the primary winding Tr p of the high-frequency pulse transformer Tr and discharges through the primary winding Tr p and the primary winding Tr p via the triac Tc in series high-frequency inductor L R1 .
- the voltage drop in the primary winding Tr p of the high-frequency pulse transformer Tr is up-transformed in proportion u of the number of turns of secondary winding Tr 3 and primary winding Tr p , so that an ignition pulse is produced at the lamp LA.
- the triac Tc switches to a high-impedance state (blocking operation) and thus interrupts the power supply for the aforementioned series resonant circuit SRK, so that the superposition igniter ÜZG is temporarily disconnected from the AC power supply. Meanwhile, the surge capacitor Ci is recharged, so that the triac Tc is turned on again when the voltage drop across the diac trigger diode Dc voltage U Dc again reaches the level of its breakdown voltage.
- TridonicAtco ner half-wave repeated By specifying a short sequence of ignition pulses at excessive supply voltage while a secure ignition is guaranteed even difficult to ignite high-pressure discharge lamps.
- the ignition pulses may have a frequency of, for example, 100 kHz, which means that usually a ferrite core is used.
- the ferrite material of the core is stressed only briefly, in contrast to a true power transformer in which a permanent energy transfer takes place from a primary side to a secondary side of the transformer.
- the ratio of winding space and core volume should also be as large as possible to accommodate more windings per wire winding with the same number of turns or on the side of the secondary winding more turns with the same wire diameter to achieve a high transformation of the ignition pulses required high voltage transmission ratio ü.
- a transformer core commonly used to construct such a pulse transformer is the E-shaped ferrite core 202 outlined in FIG. 2a.
- the usable winding volume is larger compared to an E-core or ETD core.
- a larger wire diameter is possible with the same number of turns.
- more windings are possible with the same wire diameter.
- the free legs 202a + b may optionally be connected to a yoke that, for example, is placed on the free legs to form an air gap.
- the air gap can be formed, for example, by applying a spacer, for example in the form of an adhesive tape, to the front sides of the free legs.
- the superimposed ignitor UZG with the pulse transformer Tr is encapsulated in a cup with non-square cross-sectional area with synthetic resin.
- the cross-sectional shape of the potting cup deviates significantly from the usual rectangular shape in pulse transformers with E-shaped cores, resulting in a larger ratio of cup surface to enclosed transformer volume. This is cheaper for the removal of the resulting waste heat.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006018567 | 2006-04-21 | ||
| DE102006034373A DE102006034373A1 (de) | 2006-04-21 | 2006-07-25 | Überlagerungszündgerät für ein Vorschaltgerät |
| PCT/EP2007/003010 WO2007121837A1 (de) | 2006-04-21 | 2007-04-03 | Überlagerungszündgerät für ein vorschaltgerät |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2011374A1 true EP2011374A1 (de) | 2009-01-07 |
Family
ID=38222533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07723951A Withdrawn EP2011374A1 (de) | 2006-04-21 | 2007-04-03 | Überlagerungszündgerät für ein vorschaltgerät |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2011374A1 (de) |
| CN (1) | CN101422082B (de) |
| DE (1) | DE102006034373A1 (de) |
| WO (1) | WO2007121837A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5847518A (en) * | 1996-07-08 | 1998-12-08 | Hitachi Ferrite Electronics, Ltd. | High voltage transformer with secondary coil windings on opposing bobbins |
| JPH10208956A (ja) * | 1997-01-17 | 1998-08-07 | Hitachi Ferrite Electronics Ltd | 高圧トランス |
| DE19751548C2 (de) * | 1997-11-20 | 2001-03-15 | Vogt Electronic Ag | Zündtransformator für eine Entladungslampe |
| WO2000018195A1 (en) * | 1998-09-22 | 2000-03-30 | Mitsubishi Denki Kabushiki Kaisha | Discharge lamp lighting device |
| JP4510212B2 (ja) * | 2000-03-10 | 2010-07-21 | スタンレー電気株式会社 | 放電灯起動装置 |
| DE10317945A1 (de) * | 2002-04-19 | 2003-11-20 | Tyco Electronics France Sas Po | Impulstransformator für eine Hochintensitätsentladungslampe und Verfahren zum Herstellen von diesem |
| DE202005007484U1 (de) * | 2005-05-11 | 2006-09-21 | Vogt Electronic Components Gmbh | Zündtransformator und Leuchtensockel für eine Entladungsleuchte |
| DE202005013895U1 (de) * | 2005-09-02 | 2006-02-09 | Tridonicatco Gmbh & Co. Kg | Zündschaltung mit HF-Dämpfungselementen |
-
2006
- 2006-07-25 DE DE102006034373A patent/DE102006034373A1/de not_active Withdrawn
-
2007
- 2007-04-03 WO PCT/EP2007/003010 patent/WO2007121837A1/de not_active Ceased
- 2007-04-03 CN CN200780013531.2A patent/CN101422082B/zh not_active Expired - Fee Related
- 2007-04-03 EP EP07723951A patent/EP2011374A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007121837A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101422082B (zh) | 2013-01-09 |
| CN101422082A (zh) | 2009-04-29 |
| DE102006034373A1 (de) | 2007-10-25 |
| WO2007121837A1 (de) | 2007-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20080911 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
| 17Q | First examination report despatched |
Effective date: 20090312 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TRIDONIC GMBH & CO KG |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20130703 |