Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil
Patent
1994-05-27
1996-11-12
Kozma, Thomas J.
Inductor devices
Coil or coil turn supports or spacers
Printed circuit-type coil
336212, 336223, 336233, H01F 2724, H01F 2730
Patent
active
055744206
ABSTRACT:
In accordance with the invention, a variety of magnetic devices can be made up of two or more low-profile surface components on a printed circuit board. For example, low profile devices comparable to gapped U-core pair and gapped E-core pair inductors or transformers can be formed of two and three components, respectively, and four components can be assembled into a gapped toroidal transformer or inductor. The components can be made in form for both linear and non-linear inductors.
REFERENCES:
patent: 3614554 (1971-10-01), Richardson et al.
patent: 3731005 (1973-05-01), Shearman
patent: 4455545 (1984-06-01), Shelly
patent: 4547961 (1985-10-01), Bokil et al.
patent: 4975671 (1990-12-01), Dirks
D. Bokil et al. "Thick-film transformer advances hybrid isolation amplifier" Electronics, pp. 113-117 (1981).
P. M. Gradzki et al. "Design Of High-Frequency Hybrid Power Transformer" IEEE pp. 319-326 (1988).
Roy Apurba
Shewmake Steven A.
Wadlington James C.
Books Glen E.
Kozma Thomas J.
Lucent Technologies - Inc.
Rudnick Robert E.
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