Plane transformer

Details Plane transformer Plane transformer

1997-01-28

2000-05-09

Donovan, Lincoln

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

336223, 336232, 336233, 336 83, H01F 500, H01F 2728

Patent

active

060609761

ABSTRACT:
A plane transformer has both a primary plane coil and secondary plane coils fitted in a fitting groove formed on a substrate composed of a magnetic substance. At least either of the primary plane coil and the secondary plane coils is separated into two, so that an output voltage is variably controlled by changing the numbers of turns of the primary and secondary plane coils. The plane transformer can be small in size and thickness, reduces generated heat, and hardly emits electromagnetic noises.

REFERENCES:
patent: 4009460 (1977-02-01), Fukui et al.
patent: 5450755 (1995-09-01), Saito et al.
patent: 5551146 (1996-09-01), Kawabata et al.
patent: 5559487 (1996-09-01), Butcher et al.
patent: 5598136 (1997-01-01), Kano et al.
patent: 5694030 (1997-12-01), Sato et al.
patent: 5844461 (1998-12-01), Faulk et al.
Journal Of The Magnetics Society Of Japan, "Mechanism of Conductive Losses In A Sandwich-Structured Planar Inductor", Yamaguchi, et al. vol. 16, No. 2, (with translation) 1992, (No Month).

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