EP0711450A1 - Planar transducer - Google Patents
Planar transducerInfo
- Publication number
- EP0711450A1 EP0711450A1 EP94916901A EP94916901A EP0711450A1 EP 0711450 A1 EP0711450 A1 EP 0711450A1 EP 94916901 A EP94916901 A EP 94916901A EP 94916901 A EP94916901 A EP 94916901A EP 0711450 A1 EP0711450 A1 EP 0711450A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- planar transducer
- transducer according
- section
- cuboid
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F29/146—Constructional details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias
Definitions
- FIG. 1 shows a section through a one-piece core 10 made of highly permeable material with low eddy current losses, for example a ferrite.
- This core has the shape of a cuboid, which has a cuboid opening 12 and thus has a closed iron path with two legs 14a, 14b and the yokes 15a, 15b connecting them.
- a primary winding 11a, 11b is placed around one leg 14a and a control winding 13 is applied to the other leg 14b.
- the primary winding exists a metal profile that is as wide as the opening in the core and whose cross section is preferably approximately half the cross section of the opening.
- the control winding 13 consists of one or more layers of insulated wire.
- the planar transducer is preferably used as a transducer for regulating the output voltage on the secondary side in the case of primary switched-mode switching power supplies according to FIG. 3.
- These consist of a rectifier 30, a filter capacitor 31, a control circuit 32, an electronic switch 33 and a transformer 40 with primary winding 41 and secondary winding 42.
- the primary winding 41 is supplied by the first control circuit 32 with a pulsed current which is rectified on the secondary side.
- This form of switching power supplies preferably as a forward converter is generally known, which is why details of the execution, in particular also protective means, were dispensed with for the sake of clarity.
- the necessary magnetic flux numbers can be achieved with a u-shaped winding made of a copper profile with at the same time low leakage inductance.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Magnetic Ceramics (AREA)
- Soft Magnetic Materials (AREA)
- Photoreceptors In Electrophotography (AREA)
- Liquid Crystal (AREA)
- Vehicle Body Suspensions (AREA)
- Amplifiers (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4325056A DE4325056C1 (en) | 1993-07-26 | 1993-07-26 | Planar transducer |
DE4325056 | 1993-07-26 | ||
PCT/DE1994/000654 WO1995003617A1 (en) | 1993-07-26 | 1994-06-10 | Planar transducer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0711450A1 true EP0711450A1 (en) | 1996-05-15 |
EP0711450B1 EP0711450B1 (en) | 1997-01-22 |
Family
ID=6493742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94916901A Expired - Lifetime EP0711450B1 (en) | 1993-07-26 | 1994-06-10 | Planar transducer |
Country Status (6)
Country | Link |
---|---|
US (1) | US5726618A (en) |
EP (1) | EP0711450B1 (en) |
AT (1) | ATE148258T1 (en) |
DE (2) | DE4325056C1 (en) |
DK (1) | DK0711450T3 (en) |
WO (1) | WO1995003617A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6598084B2 (en) * | 2017-02-22 | 2019-10-30 | 株式会社オートネットワーク技術研究所 | Coil and reactor |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE285431C (en) * | ||||
GB618398A (en) * | 1946-11-04 | 1949-02-21 | Gen Electric Co Ltd | Improvements in or relating to variable impedance reactors |
FR1008194A (en) * | 1950-01-10 | 1952-05-14 | Method for varying the reluctance of a magnetic circuit, devices allowing the implementation of this method and their applications | |
FR1068736A (en) * | 1951-08-01 | 1954-06-30 | Int Standard Electric Corp | Magnetic control devices for alternating current electrical circuits |
US2690536A (en) * | 1952-03-01 | 1954-09-28 | Bendix Aviat Corp | Saturable magnetic device |
GB735304A (en) * | 1952-05-13 | 1955-08-17 | Raoul Willheim | Improvements in or relating to saturable reactors |
US3916286A (en) * | 1974-09-19 | 1975-10-28 | United Technologies Corp | Switching power supply common output filter |
DE2544574A1 (en) * | 1975-10-04 | 1977-04-07 | Bbc Brown Boveri & Cie | Regulated power supply with out-put side chokes - has choke coils woun on same core in same sense |
FR2468983A1 (en) * | 1979-09-27 | 1981-05-08 | Sobiepanek Janusz | Transformer with variable magnetic flux - has regulating coil coupled to input and output windings to form variable impedance circuit |
DE3312124A1 (en) * | 1983-04-02 | 1984-10-04 | Schuntermann und Benninghoven, 4010 Hilden | Transductor-controlled voltage stabiliser |
DE3433973A1 (en) * | 1984-06-29 | 1986-03-20 | Vogt electronic AG, 8391 Erlau | Use of a highly saturable ferrite having a low permeability |
DE3508327A1 (en) * | 1985-03-06 | 1986-09-11 | Siemens AG, 1000 Berlin und 8000 München | CURRENT TRANSFORMER WITH A RECTANGULAR IRON CORE |
DE3843183A1 (en) * | 1988-12-22 | 1990-07-05 | Philips Patentverwaltung | Switched-mode power supply device |
DD285431A5 (en) * | 1989-06-28 | 1990-12-12 | Akad Wissenschaften Ddr | ARRANGEMENT WITH CONTROLLABLE MAGNETIC RIVER |
DE4118918A1 (en) * | 1991-06-08 | 1992-12-10 | Philips Patentverwaltung | DC=DC converter with two sec. output stages - has two current-controlled transductor chokes in series supplying one of two rectifying and smoothing circuits |
-
1993
- 1993-07-26 DE DE4325056A patent/DE4325056C1/en not_active Expired - Fee Related
-
1994
- 1994-06-10 AT AT94916901T patent/ATE148258T1/en not_active IP Right Cessation
- 1994-06-10 DE DE59401671T patent/DE59401671D1/en not_active Expired - Fee Related
- 1994-06-10 DK DK94916901.5T patent/DK0711450T3/en active
- 1994-06-10 US US08/586,867 patent/US5726618A/en not_active Expired - Fee Related
- 1994-06-10 WO PCT/DE1994/000654 patent/WO1995003617A1/en active IP Right Grant
- 1994-06-10 EP EP94916901A patent/EP0711450B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9503617A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE148258T1 (en) | 1997-02-15 |
US5726618A (en) | 1998-03-10 |
WO1995003617A1 (en) | 1995-02-02 |
DK0711450T3 (en) | 1997-07-28 |
DE59401671D1 (en) | 1997-03-06 |
EP0711450B1 (en) | 1997-01-22 |
DE4325056C1 (en) | 1995-01-12 |
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