DE3123006A1 - Transformer - Google Patents
TransformerInfo
- Publication number
- DE3123006A1 DE3123006A1 DE19813123006 DE3123006A DE3123006A1 DE 3123006 A1 DE3123006 A1 DE 3123006A1 DE 19813123006 DE19813123006 DE 19813123006 DE 3123006 A DE3123006 A DE 3123006A DE 3123006 A1 DE3123006 A1 DE 3123006A1
- Authority
- DE
- Germany
- Prior art keywords
- transformer
- air gap
- cross
- sectional shape
- leg
- 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.)
- Granted
Links
Classifications
-
- 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
- H01F38/42—Flyback transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
-
- 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
- H01F38/42—Flyback transformers
- H01F2038/426—Flyback transformers with gap in transformer core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
Transformator transformer
Die vorliegende Erfindung betrifft einen Transformator, insbesondere Hochspannungstransformator für eine Schaltung zur Erzeugung der Zeilenablenkspannung in einem Fernsehgerät, mit auf einem Schenkel eines Transformatorkerns vorgesehenen Transformatorwicklungen und mit mindestens zwei im Transformatorkern vorgesehenen Luftspalten.The present invention relates to a transformer, in particular High-voltage transformer for a circuit for generating the line deflection voltage in a television set, with provided on one leg of a transformer core Transformer windings and provided with at least two in the transformer core Air gaps.
Bei Transformatoren mit Ferritkernen, die aus mehreren Schenkeln bestehen, wird zur Realisierug der erforderlichen Induktivität gewöhnlich in mindestens einen Luftspalt ein Kunststoffmaterial in Plättchenform eingelegt. Beispielsweise bei einem Transformator mit einem U-Kern kann zwischen die an den Luft spalt angrenzenden Schenkelteile zur Realisierung der geforderten Induktivität eine Kunststoffolie mit einer Dicke von o,1 bis o,5 mm eingelegt werden.For transformers with ferrite cores that consist of several legs, is usually in at least one to achieve the required inductance A plastic material in the form of a plate is inserted into the air gap. For example at a transformer with a U-core can be adjacent to the air gap between the Leg parts to realize the required inductance a plastic film be inserted with a thickness of 0.1 to 0.5 mm.
Bei einem derartig ausgebildeten Transformator ist der Innenwiderstand von der Strombelastung auf der Sekundärseite abhängig. Bei einem Luftspalt, der den gleichen Querschnitt wie die an ihn angrenzenden Schenkelteile besitzt, nimmt die Sekundärspannung mit steigendem Strom auf der Sekundärseite deutlich ab.In the case of a transformer designed in this way, the internal resistance is depends on the current load on the secondary side. With an air gap that has the same cross-section as the leg parts adjoining it, takes the secondary voltage decreases significantly with increasing current on the secondary side.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Möglichkeit zur Verringerung des Transformator-Innenwiderstandes zwecks Vermeidung der Abnahme der Sekundärspannung bei höheren Strombelastungen auf der Sekundärseite anzugeben.The present invention is based on the object of one possibility to reduce the internal resistance of the transformer in order to avoid the decrease the secondary voltage for higher current loads on the secondary side.
Diese Aufgabe wird bei einem Transformator der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß zwei Luftspalte verwendet werden, von denen ein Luftspalt eine an die Strombelastung auf der Sekundärseite angepaßte veränderliche Querschnittsform besitzt, der wesentlich größer ist als der andere Luftspalt mit festeingestelltem Wert.In the case of a transformer, this task is the one mentioned at the beginning Type solved according to the invention in that two air gaps are used, of which an air gap a variable adapted to the current load on the secondary side Has cross-sectional shape that is much larger than the other air gap with fixed value.
Ausgestaltungen des Erfindungsgedankens sind in Unteransprüchen gekennzeichnet Die Erfindung wird im folgenden anhand von in den Figuren der Zeichnung dargestellten Ausführungsbeispielen naher erläutert.Refinements of the inventive concept are characterized in the subclaims The invention is illustrated below with reference to in the figures of the drawing Embodiments explained in more detail.
Es zeigt: Fig. 1 eine Ausführungsform eines bekannten Transformators mit mehreren Schenkeln; Fig. 2 eine Ausführungsform eines erfindungsgemäßen Transformators mit einer Querschnittsverminderung des effektiven Luftspaltes; und Fig. 3 eine weitere Ausführungsform des erfindungsgemäßen Transformators, bei dem durch Einfügen eines Steges aus magnetischem Material eine Querschnittsänderung des effektiven Luftspaltes realisiert ist.It shows: FIG. 1 an embodiment of a known transformer with several legs; 2 shows an embodiment of a transformer according to the invention with a cross-section reduction of the effective air gap; and FIG. 3 shows another Embodiment of the transformer according to the invention, in which by inserting a Bar made of magnetic material, a change in cross-section of the effective air gap is realized.
Figur 1 zeigt einen bekannten mehrschenkligen Transfor-.Figure 1 shows a known multi-legged transformer.
mator 1 mit zwei Ferrit-U-Kernen 2 und 3, wobei auf jeweils einem freien Schenkel dieser beiden Kerne schematisch dargestellte Transformatorwicklungen 4 in Form einer Primärwicklung und einer Hochspannungswicklung vorgesehen sind. Zwischen weiteren freien Schenkeln 5 und 6 der Kerne 2 und 3 ist dem Stand der Technik entsprechend ein Luftspalt 7 vorgesehen, in den je nach Erfordernis an die zu erzielende Induktivität eine Kunststoffolie 9 mit einer Dicke von o,1 bis o,5 mm eingelegt werden kann.mator 1 with two ferrite U-cores 2 and 3, with one on each free legs of these two cores, transformer windings shown schematically 4 are provided in the form of a primary winding and a high-voltage winding. Between further free legs 5 and 6 of the cores 2 and 3 is the state of the art accordingly an air gap 7 is provided, depending on the requirement of the to be achieved Inductance, a plastic film 9 with a thickness of 0.1 to 0.5 mm is inserted can be.
Zur Realisierung eines an die Strombelastung auf der Sekundärseite des Transformators 1 angepaßten Transformator-Innenwiderstandes ist gemäß einer Ausführungsform der Erwindung nach Fig. 2, in der gleiche Elemente wie in Fig. 1 mit gleichen Bezugszeichen versehen sind, ein an die Berührungsfläche der Schenkel angrenzender Teil des freien Schenkels 6 mit einer Querschnittsverminderung 8 versehen, welche vorzugsweise derart konisch ausgebildet ist, daß die Querschnittsverminderung zur Berührungsfläche hin abnimmt.To realize an to the current load on the secondary side of the transformer 1 adapted transformer internal resistance is according to a Embodiment of the winding according to FIG. 2, in the same elements as in FIG. 1 are provided with the same reference numerals, one on the contact surface of the legs the adjacent part of the free leg 6 is provided with a cross-sectional reduction 8, which is preferably conical in such a way that the cross-section reduction decreases towards the contact surface.
Bei der Ausführungsform des erfindungsgemäßen Transformators nach Fig. 3, in der gleiche Teile wie in den Fig. 1.In the embodiment of the transformer according to the invention according to 3, in the same parts as in FIG. 1.
und 2 mit gleichen Bezugszeichen versehen sind, besitzen die freien Schenkel 5 und 6 der Kerne 2 und 3 einen konstanten Querschnitt. Zur Realisierung eines an die Strombelastung auf der Transformator-Sekundärseite angepaßten Innenwiderstandes ist in den Luftspalt 7 ein Steg mit gegenüber den an den Luftspalt 7 angrenzenden Schenkelteilen 5 und 6 kleinerem Querschnitt vorgesehen. Dieser Steg 10 besteht zweckmäßigerweise aus einem Material mit gleicher oder geringerer Sättigungsfrequenz in Bezug auf das Material der Kerne 2 und 3. Sind beispielsweise die Kerne 2 und 3 aus einem Ferrit hergestellt, so kann auch der Steg 1o aus Ferrit hergestellt werden.and 2 are provided with the same reference numerals have the free ones Legs 5 and 6 of the cores 2 and 3 have a constant cross-section. To the realization an internal resistance adapted to the current load on the transformer secondary side is in the air gap 7 a web with opposite to the adjacent to the air gap 7 Leg parts 5 and 6 provided with a smaller cross-section. This web 10 is made expediently made of a material with the same or a lower saturation frequency with respect to the material of the cores 2 and 3. For example, the cores 2 and 3 made of a ferrite, the web 1o can also be made of ferrite getting produced.
Entscheidend ist, daß der mit der Strombelastung veränderliche Luftspalt einen wesentlich größeren Wert als der festeingestellte Luftspalt 11 aufweist. Bei dem durch eine eingelegte Kunststoffolie festeingestellten Luftspalt wird eine Dicke von 6 bis 20 u zugrundegelegt, bei dem veränderlichen Luftspalt eine Dicke von o,o5 bis 1,o mm, je nach Strombelastung.The decisive factor is that the air gap, which changes with the current load has a significantly larger value than the fixed air gap 11. at the air gap, which is fixed by an inserted plastic film, becomes a thickness of 6 to 20 u, with the variable air gap a thickness of 0.05 up to 1.0 mm, depending on the current load.
An einem Beispiel sei die Verbesserung des Transformator-Innenwiderstandes durch die erfindungsgemäße Ausgestaltung der Querschnittsform des Luftspaltes erläutert.An example is the improvement of the transformer's internal resistance explained by the inventive design of the cross-sectional shape of the air gap.
Ein mit 16 KHz betriebener Transformator mit einer Eingangsspannung von 1,1 KV und einer Ausgangsspannung von 8,5 KV besitzt bei einem Luftspalt mit gleichen Querschnittsabmessungen wie die Schenkel des Transformatorkerns bei einer Luftspaltbreite von o,3 mm mit in den Luftspalt eingelegter Kunststoffolie einen dynamischen Innenwiderstand von 1,5 bis 1,6 MOhm. Bei einer erfindungsgemäßen Ausgestaltung des Luftspaltes ergibt sich eine Reduzierung des Innenwiderstandes auf 1 bis 1,1 MOhm.A transformer operated at 16 KHz with an input voltage of 1.1 KV and an output voltage of 8.5 KV with an air gap same cross-sectional dimensions as the legs of the transformer core in a Air gap width of 0.3 mm with plastic film inserted into the air gap dynamic internal resistance from 1.5 to 1.6 MOhm. In an embodiment according to the invention the air gap results in a reduction of the internal resistance to 1 to 1.1 MOhm.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813123006 DE3123006A1 (en) | 1981-06-10 | 1981-06-10 | Transformer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813123006 DE3123006A1 (en) | 1981-06-10 | 1981-06-10 | Transformer |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3123006A1 true DE3123006A1 (en) | 1983-01-05 |
DE3123006C2 DE3123006C2 (en) | 1988-07-28 |
Family
ID=6134356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813123006 Granted DE3123006A1 (en) | 1981-06-10 | 1981-06-10 | Transformer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3123006A1 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3140818A1 (en) * | 1981-10-13 | 1983-04-21 | Ernst Roederstein Spezialfabrik für Kondensatoren GmbH, 8300 Landshut | Module for generating EHT for television sets |
EP0185149A1 (en) * | 1984-09-24 | 1986-06-25 | Siemens Aktiengesellschaft | Accumulating inductor |
DE3639054A1 (en) * | 1985-12-11 | 1987-06-19 | Schrack Elektronik Ag | Isolating transformer having at least one isolating transformer/transformer arrangement |
EP0444521A1 (en) * | 1990-02-27 | 1991-09-04 | TDK Corporation | Coil device |
EP0444522A1 (en) * | 1990-02-27 | 1991-09-04 | TDK Corporation | Coil device |
EP0471864A1 (en) * | 1990-08-17 | 1992-02-26 | TDK Corporation | Coil device |
US5210514A (en) * | 1990-08-17 | 1993-05-11 | Tdk Corporation | Coil device |
US6211765B1 (en) * | 1990-02-27 | 2001-04-03 | Tdk Corporation | Coil device |
US7772955B1 (en) | 2002-12-13 | 2010-08-10 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
US7893806B1 (en) | 2002-12-13 | 2011-02-22 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
US7898379B1 (en) | 2002-12-13 | 2011-03-01 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
US7965165B2 (en) | 2002-12-13 | 2011-06-21 | Volterra Semiconductor Corporation | Method for making magnetic components with M-phase coupling, and related inductor structures |
US8102233B2 (en) | 2009-08-10 | 2012-01-24 | Volterra Semiconductor Corporation | Coupled inductor with improved leakage inductance control |
US8237530B2 (en) | 2009-08-10 | 2012-08-07 | Volterra Semiconductor Corporation | Coupled inductor with improved leakage inductance control |
US8294544B2 (en) * | 2008-03-14 | 2012-10-23 | Volterra Semiconductor Corporation | Method for making magnetic components with M-phase coupling, and related inductor structures |
US8299885B2 (en) | 2002-12-13 | 2012-10-30 | Volterra Semiconductor Corporation | Method for making magnetic components with M-phase coupling, and related inductor structures |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4101505A1 (en) * | 1991-01-19 | 1992-07-23 | Thomson Brandt Gmbh | Line transformer for TV receiver - has two-half ferrite core between whose front faces lies gap shape determining ferrite member |
DE4302271A1 (en) * | 1993-01-28 | 1994-08-04 | Thomson Brandt Gmbh | HV transformer for TV receiver |
US9019063B2 (en) | 2009-08-10 | 2015-04-28 | Volterra Semiconductor Corporation | Coupled inductor with improved leakage inductance control |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1250290A (en) * | 1969-02-28 | 1971-10-20 | ||
DE3017368A1 (en) * | 1980-05-07 | 1981-11-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | LINE TRANSFORMER FOR A TELEVISION RECEIVER |
-
1981
- 1981-06-10 DE DE19813123006 patent/DE3123006A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1250290A (en) * | 1969-02-28 | 1971-10-20 | ||
DE3017368A1 (en) * | 1980-05-07 | 1981-11-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | LINE TRANSFORMER FOR A TELEVISION RECEIVER |
Non-Patent Citations (1)
Title |
---|
Formel- und Tabellenbuch, 3.Aufl., Siemens- Schuckertwerke: Verlag W. Girardet, Essen 1965, S.159,171,187 * |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3140818A1 (en) * | 1981-10-13 | 1983-04-21 | Ernst Roederstein Spezialfabrik für Kondensatoren GmbH, 8300 Landshut | Module for generating EHT for television sets |
EP0185149A1 (en) * | 1984-09-24 | 1986-06-25 | Siemens Aktiengesellschaft | Accumulating inductor |
US4728918A (en) * | 1984-09-24 | 1988-03-01 | Siemens Aktiengesellschaft | Storage coil with air gap in core |
DE3639054A1 (en) * | 1985-12-11 | 1987-06-19 | Schrack Elektronik Ag | Isolating transformer having at least one isolating transformer/transformer arrangement |
EP0444521A1 (en) * | 1990-02-27 | 1991-09-04 | TDK Corporation | Coil device |
EP0444522A1 (en) * | 1990-02-27 | 1991-09-04 | TDK Corporation | Coil device |
US5315279A (en) * | 1990-02-27 | 1994-05-24 | Tdk Corporation | Coil device |
US6211765B1 (en) * | 1990-02-27 | 2001-04-03 | Tdk Corporation | Coil device |
EP0471864A1 (en) * | 1990-08-17 | 1992-02-26 | TDK Corporation | Coil device |
US5210514A (en) * | 1990-08-17 | 1993-05-11 | Tdk Corporation | Coil device |
US7772955B1 (en) | 2002-12-13 | 2010-08-10 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
US7864016B1 (en) | 2002-12-13 | 2011-01-04 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
US7893806B1 (en) | 2002-12-13 | 2011-02-22 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
US7898379B1 (en) | 2002-12-13 | 2011-03-01 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
US7965165B2 (en) | 2002-12-13 | 2011-06-21 | Volterra Semiconductor Corporation | Method for making magnetic components with M-phase coupling, and related inductor structures |
US8299885B2 (en) | 2002-12-13 | 2012-10-30 | Volterra Semiconductor Corporation | Method for making magnetic components with M-phase coupling, and related inductor structures |
US8350658B1 (en) | 2002-12-13 | 2013-01-08 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
US8294544B2 (en) * | 2008-03-14 | 2012-10-23 | Volterra Semiconductor Corporation | Method for making magnetic components with M-phase coupling, and related inductor structures |
CN102007553B (en) * | 2008-03-14 | 2012-12-12 | 沃特拉半导体公司 | Method for making magnetic components with m-phase coupling, and related inductor structures |
US8836463B2 (en) | 2008-03-14 | 2014-09-16 | Volterra Semiconductor Corporation | Voltage converter inductor having a nonlinear inductance value |
US9627125B2 (en) | 2008-03-14 | 2017-04-18 | Volterra Semiconductor LLC | Voltage converter inductor having a nonlinear inductance value |
US8102233B2 (en) | 2009-08-10 | 2012-01-24 | Volterra Semiconductor Corporation | Coupled inductor with improved leakage inductance control |
US8237530B2 (en) | 2009-08-10 | 2012-08-07 | Volterra Semiconductor Corporation | Coupled inductor with improved leakage inductance control |
Also Published As
Publication number | Publication date |
---|---|
DE3123006C2 (en) | 1988-07-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3123006A1 (en) | Transformer | |
DE69301786T2 (en) | Choke coil | |
EP1255346B1 (en) | Transformer with integrated choke coil | |
DE69120986T2 (en) | Coil arrangement | |
DE2535653A1 (en) | CONSTANT VOLTAGE TRANSFORMER | |
DE19606445A1 (en) | Inductive measuring system for measuring AC current components superimposed on high value DC current | |
DE2841885C2 (en) | Flyback transformer for use in a horizontal deflection circuit | |
DE3017368A1 (en) | LINE TRANSFORMER FOR A TELEVISION RECEIVER | |
DE60206279T2 (en) | POWER FACTOR CORRECTION WITH A COIL | |
DE69109709T2 (en) | Coil arrangement. | |
DE3533649A1 (en) | Transformer | |
DE2250394A1 (en) | ELECTROMAGNETIC INDUCTION DEVICE | |
CH416817A (en) | Magnetic core, especially for transformers or chokes | |
DE102004008961B4 (en) | Coil body for closed magnetic core, has guiding units arranged outside supporting surface, winding space defined between units and under windings, and separating units designed as flat ledges | |
DE2203210A1 (en) | TRANSDUCER | |
EP0239786A2 (en) | Choke for a high power switching power supply | |
DE2603358B2 (en) | Multi-part ferrite core for high-frequency transformers | |
DE69011106T2 (en) | Coil element. | |
DE1293330B (en) | Magnetic voltage stabilizer | |
DE102022202957A1 (en) | DC/DC converter | |
DE4116740A1 (en) | POWER SWITCHING TRANSFORMER | |
DE897859C (en) | Broadband transmitter for audio and television frequencies | |
DE2625165A1 (en) | TRANSFORMER COIL FOR VERY HIGH VOLTAGE | |
DE69622359T2 (en) | Current transformer and method for its production | |
DE3140818A1 (en) | Module for generating EHT for television sets |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: ROEDERSTEIN SPEZIALFABRIKEN FUER BAUELEMENTE DER E |
|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8339 | Ceased/non-payment of the annual fee |