Inductor devices – Coils of special configuration – Planar type
Reexamination Certificate
2007-01-29
2010-10-26
Mai, Anh T (Department: 2832)
Inductor devices
Coils of special configuration
Planar type
C336S200000
Reexamination Certificate
active
07821375
ABSTRACT:
A multiple phase buck converter or boost converter, or buck-boost converter has an inductor in each phase. The inductors are inversely coupled. In a first embodiment, the converter includes a toroidal magnetic core with inductors extending under and over opposite sides of the toroidal magnetic core. The coupled inductors are thereby inversely coupled and have a relatively low ohmic resistance. In a second embodiment, the converter comprises a ladder-shaped magnetic core (i.e. having parallel sides, and connecting rungs). In this case, the inductors extend under the sides, and over the rungs. Each inductor is disposed over a separate rung. The ladder-shaped magnetic core is preferably disposed flat on a circuit board. Inverse coupling and low ohmic resistance are also provided in the second embodiment having the ladder structure.
REFERENCES:
patent: 6232864 (2001-05-01), Hosozawa et al.
patent: 6362986 (2002-03-01), Shultz et al.
patent: 7199695 (2007-04-01), Zhou et al.
patent: 7352269 (2008-04-01), Li et al.
patent: 2004/1011374 (2004-06-01), Li et al.
patent: 02179910 (1990-07-01), None
Dong Yan
Lee Fred C.
Xu Ming
Baisa Joselito
Mai Anh T
Virginia Tech Intellectual Properties Inc.
Whitham Curtis Christofferson & Cook, P.C.
LandOfFree
Multiphase voltage regulator having coupled inductors with... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiphase voltage regulator having coupled inductors with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiphase voltage regulator having coupled inductors with... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4150968