EP 0782154 A4 19990811 - FLAT TRANSFORMER
Title (en)
FLAT TRANSFORMER
Title (de)
FLACHER TRANSFORMATOR
Title (fr)
TRANSFORMATEUR PLAT
Publication
Application
Priority
- JP 9601597 W 19960612
- JP 5585195 U 19950613
Abstract (en)
[origin: WO9642095A1] The reference numeral (2) designates a primary coil substrate formed by printing a coil pattern with resist on a commercial double-sided printed-circuit board and etching it, and the reference numeral (4) designates a secondary coil substrate formed in the same process. The reference numerals (1, 3 and 5) designate insulating boards. A flat transformer is produced by interposing adhesive sheets between these boards (1 to 5), compressing and heating them to form a laminated plate, punching the laminated plate into a desired shape, fitting a core (7) into the laminated plate punched, and fastening it by means of fasteners (8). The transformer can have desirable dielectric strength depending on the materials and thicknesses of the insulation plates (1, 3 and 5).
IPC 1-7
IPC 8 full level
H01F 17/00 (2006.01); H01F 19/04 (2006.01); H01F 27/28 (2006.01); H01F 30/10 (2006.01)
CPC (source: EP)
H01F 17/0013 (2013.01); H01F 19/04 (2013.01); H01F 27/2804 (2013.01); H01F 30/10 (2013.01); H01F 2027/2809 (2013.01)
Citation (search report)
- [X] FR 2262857 A1 19750926 - SIEMENS AG [DE]
- [A] GB 2252208 A 19920729 - BURR BROWN CORP [US]
- [A] PATENT ABSTRACTS OF JAPAN vol. 010, no. 244 (E - 430) 22 August 1986 (1986-08-22)
- [A] PATENT ABSTRACTS OF JAPAN vol. 018, no. 210 (E - 1537) 14 April 1994 (1994-04-14)
- See references of WO 9642095A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9642095 A1 19961227; EP 0782154 A1 19970702; EP 0782154 A4 19990811
DOCDB simple family (application)
JP 9601597 W 19960612; EP 96917657 A 19960612