HK1007829A1 - Low-profile planar transformer for use in off-line switching power supplies - Google Patents
Low-profile planar transformer for use in off-line switching power suppliesInfo
- Publication number
- HK1007829A1 HK1007829A1 HK98106877A HK98106877A HK1007829A1 HK 1007829 A1 HK1007829 A1 HK 1007829A1 HK 98106877 A HK98106877 A HK 98106877A HK 98106877 A HK98106877 A HK 98106877A HK 1007829 A1 HK1007829 A1 HK 1007829A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- low
- switching power
- power supplies
- line switching
- planar transformer
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/502,523 US5010314A (en) | 1990-03-30 | 1990-03-30 | Low-profile planar transformer for use in off-line switching power supplies |
US62554090A | 1990-12-07 | 1990-12-07 | |
PCT/US1991/001801 WO1991015861A1 (en) | 1990-03-30 | 1991-03-18 | Low-profile planar transformer for use in off-line switching power supplies |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1007829A1 true HK1007829A1 (en) | 1999-04-23 |
Family
ID=27054186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98106877A HK1007829A1 (en) | 1990-03-30 | 1998-06-26 | Low-profile planar transformer for use in off-line switching power supplies |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0476114B1 (en) |
AU (1) | AU7665091A (en) |
DE (2) | DE69117403T2 (en) |
HK (1) | HK1007829A1 (en) |
WO (1) | WO1991015861A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0608127A1 (en) * | 1993-01-22 | 1994-07-27 | AT&T Corp. | Insulation system for magnetic windings having stacked planar conductors |
US5754088A (en) * | 1994-11-17 | 1998-05-19 | International Business Machines Corporation | Planar transformer and method of manufacture |
GB9424349D0 (en) * | 1994-12-02 | 1995-01-18 | Measurement Tech Ltd | Transformers |
WO1997001177A1 (en) * | 1995-06-22 | 1997-01-09 | Vogt Electronic Ag | Selv-generating transformer for supply switches |
IT1304341B1 (en) * | 1998-01-30 | 2001-03-15 | Rgm Spa | PLANAR TRANSFORMER. |
TW410353B (en) * | 1998-02-13 | 2000-11-01 | Thomson Brandt Gmbh | Transformer |
FR2802762A1 (en) * | 1999-12-17 | 2001-06-22 | Microspire | LOW THICKNESS INDUCTIVE COMPONENT |
IL136301A (en) | 2000-05-22 | 2005-09-25 | Payton Planar Magnetics Ltd | Method of insulating a planar transformer printed circuit and lead frame windings forms |
IL139714A0 (en) * | 2000-11-15 | 2002-02-10 | Payton Planar Magnetics Ltd | A bobbin for hybrid coils in planar magnetic components |
ITVI20010115A1 (en) * | 2001-05-21 | 2002-11-21 | Diego Ghiotto | BUILDING SYSTEM OF PLANAR TYPE TRANSFORMERS FOR AKTA FRE CONVERTERS |
DE10148133A1 (en) * | 2001-09-28 | 2003-04-24 | Ascom Energy Systems Ag Bern | Flat transformer with inserted secondary windings |
GB2456132B (en) * | 2007-12-31 | 2009-11-25 | Kuan Tech | Low-profile planar transformer |
US10062496B2 (en) | 2015-02-26 | 2018-08-28 | Lear Corporation | Planar transformer |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3765082A (en) * | 1972-09-20 | 1973-10-16 | San Fernando Electric Mfg | Method of making an inductor chip |
US3848210A (en) * | 1972-12-11 | 1974-11-12 | Vanguard Electronics | Miniature inductor |
DE2917388A1 (en) * | 1979-04-28 | 1980-11-06 | Bosch Gmbh Robert | Flat transmitter coil unit - has thin film coil formed on ceramic former and with bridge section of ferrite material in middle |
CA1177127A (en) * | 1980-11-14 | 1984-10-30 | William H. Morong, Iii | Miniaturized transformer construction |
NL8105195A (en) * | 1981-11-17 | 1983-06-16 | Philips Nv | INDUCTIVE DEVICE. |
JPS59189212U (en) * | 1983-05-18 | 1984-12-15 | 株式会社村田製作所 | chip type inductor |
DE3423139A1 (en) * | 1983-06-23 | 1985-01-10 | Murata Eria N.A., Inc., Marietta, Ga. | Monolithic inductor having transformer applications |
GB2163603A (en) * | 1984-08-25 | 1986-02-26 | Stc Plc | Miniature transformer or choke |
FR2615319B1 (en) * | 1987-05-15 | 1989-07-07 | Bull Sa | HIGH-COUPLING TRANSFORMER SUITABLE FOR A CUT-OUT POWER SUPPLY CIRCUIT AND CUT-OUT POWER SUPPLY CIRCUIT COMPRISING SUCH A TRANSFORMER |
DE3718383A1 (en) * | 1987-06-02 | 1988-12-15 | Vacuumschmelze Gmbh | HIGH FREQUENCY POWER TRANSMITTER |
US4864486A (en) * | 1988-07-29 | 1989-09-05 | International Business Machines Corporation | Plank and frame transformer |
US4914561A (en) * | 1989-02-03 | 1990-04-03 | Eldec Corporation | Dual transformer device for power converters |
-
1991
- 1991-03-18 DE DE69117403T patent/DE69117403T2/en not_active Expired - Lifetime
- 1991-03-18 AU AU76650/91A patent/AU7665091A/en not_active Abandoned
- 1991-03-18 DE DE9114783U patent/DE9114783U1/en not_active Expired - Lifetime
- 1991-03-18 EP EP91907531A patent/EP0476114B1/en not_active Expired - Lifetime
- 1991-03-18 WO PCT/US1991/001801 patent/WO1991015861A1/en active IP Right Grant
-
1998
- 1998-06-26 HK HK98106877A patent/HK1007829A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU7665091A (en) | 1991-10-30 |
DE69117403D1 (en) | 1996-04-04 |
DE9114783U1 (en) | 1992-03-19 |
DE69117403T2 (en) | 1996-09-05 |
EP0476114B1 (en) | 1996-02-28 |
WO1991015861A1 (en) | 1991-10-17 |
EP0476114A1 (en) | 1992-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PE | Patent expired |
Effective date: 20110317 |