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US 9,318,253 B2Granted
Hybrid planar common-mode choke
AssigneeHamilton Sundstrand Corporation
InventorsGregory I. Rozman, Jacek F. Gieras
Life of this patent
Estimating the term…
Abstract
A common-mode choke includes a plurality of hybrid core inductors and a printed circuit board. Each of the plurality of hybrid core inductors includes a first core made of a first material, a second core made of a second material, and at least one common coil configured to generate a magnetic field in both the first and second cores. The printed circuit board is configured to connect the plurality of hybrid core inductors in series.
Claims14
A common-mode choke comprising:
- a plurality of hybrid core inductors, wherein each of the plurality of hybrid core inductors comprises:
- a first core comprising a first material;
- a second core comprising a second material, wherein the first core and the second core are configured in a coaxial configuration;
- and
- at least one common coil configured to generate a magnetic field in both the first and second cores;
- and
- a printed circuit board configured to connect the plurality of hybrid core inductors in series, wherein the plurality of hybrid core inductors are connected to the printed circuit board in a planar configuration.
4 more elements
A power conversion system comprising:
- a three-phase input power source;
- an active rectifier that converts alternating current from the three-phase power source into direct current power for a load;
- at least one planar common-mode choke connected to filter common-mode electromagnetic interference generated by the active rectifier, wherein the at least one planar common-mode choke comprises:
- a plurality of hybrid core inductors that each comprise a first core and a second core, wherein the first core and the second core share at least one multiphase coil connected to the three-phase power source, and wherein the first core and the second core are configured in a coaxial configuration;
- and
- a printed circuit board configured to connect the plurality of hybrid core inductors in series, wherein the plurality of hybrid core inductors are connected to the printed circuit board in a planar configuration.
3 more elements
A power conversion system comprising:
- a three-phase input power source;
- an active rectifier that converts alternating current from the three-phase power source into direct current power for a load;
- at least one planar common-mode choke connected to filter common-mode electromagnetic interference generated by the active rectifier, wherein the at least one planar common-mode choke comprises:
- a plurality of hybrid core inductors that each comprise a first core and a second core, wherein the first core and the second core share at least one multiphase coil connected to the three-phase power source;
- a printed circuit board configured to connect the plurality of hybrid core inductors in series, wherein the plurality of hybrid core inductors are connected to the printed circuit board in a planar configuration;
- a base plate, wherein the plurality of hybrid core inductors are positioned between the printed circuit board and the base plate;
- and
- an insulating material connected between the plurality of hybrid core inductors and the baseplate, wherein the insulating material is in thermal contact with one of the first core and the second core of each of the plurality of hybrid core inductors, and wherein the insulating material is in further thermal contact with the at least one multiphase coil of each of the plurality of hybrid core inductors.
5 more elements
Dependencies are inferred from the claim text.