Reactor and power supply device employing the same
First Claim
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1. A power supply device comprising:
- N (N is an integer of 2 or more) power supplies; and
a reactor by which said N power supplies are connected in parallel to a load,said reactor including;
an annular iron core; and
N coils separately wound around said iron core,said N coils having first electrodes connected to output terminals of said N power supplies, respectively, and second electrodes each connected to said load,said N coils being sequentially arranged in a circumferential direction of said iron core, said N coils being wound from the first electrodes to the second electrodes in the same winding direction,currents flowing from said N power supplies to said load through said N coils to generate magnetic fluxes in the same direction in said iron core by said N coils.
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Abstract
A reactor includes an annular iron core and four coils separately wound around the iron core. The four coils have first electrodes connected to output terminals of four choppers, respectively, and second electrodes each connected to a load. Therefore, the four choppers can be connected in parallel to the load by one reactor.
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Citations
19 Claims
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1. A power supply device comprising:
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N (N is an integer of 2 or more) power supplies; and a reactor by which said N power supplies are connected in parallel to a load, said reactor including; an annular iron core; and N coils separately wound around said iron core, said N coils having first electrodes connected to output terminals of said N power supplies, respectively, and second electrodes each connected to said load, said N coils being sequentially arranged in a circumferential direction of said iron core, said N coils being wound from the first electrodes to the second electrodes in the same winding direction, currents flowing from said N power supplies to said load through said N coils to generate magnetic fluxes in the same direction in said iron core by said N coils. - View Dependent Claims (2, 3, 4, 5)
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6. A power supply device comprising:
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N (N is an integer of 2 or more) power supplies; and a reactor by which said N power supplies are connected in parallel to a load, said reactor including; an annular iron core; and N first coils and N second coils separately wound around said iron core, said N first coils having first electrodes connected to first output terminals of said N power supplies, respectively, and second electrodes each connected to one terminal of said load, said N second coils having first electrodes connected to second output terminals of said N power supplies, respectively, and second electrodes each connected to the other terminal of said load, said N first coils being sequentially arranged in a circumferential direction of said iron core, said N first coils being wound from the first electrodes of said N first coils to the second electrodes of said N first coils in the same winding direction, said N second coils being sequentially arranged in a circumferential direction of said iron core, said N second coils being wound from the first electrodes of said N second coils to the second electrodes of said N second coils in the same winding direction, currents flowing from said N power supplies to said load through said N first coils and said N second coils to generate magnetic fluxes in the same direction in said iron core by said N first coils and to generate magnetic fluxes in the same direction in said iron core by said N second coils, starting ends of said N first coils and terminal ends of said N second coils having the same polarity. - View Dependent Claims (7, 8, 9)
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10. A reactor by which N (N is an integer of 2 or more) power supplies are connected in parallel to a load, said reactor comprising:
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an annular iron core; N first coils and N second coils separately wound around said iron core; N first terminals connected to the first electrodes of said N first coils, respectively; N second terminals connected to the first electrodes of said N second coils, respectively; a third terminal connected to the second electrodes of said N first coils; and a fourth terminal connected to the second electrodes of said N second coils, said N first terminals being connected to the first output terminals of said N power supplies, respectively, said N second terminals being connected to the second output terminals of said N power supplies, respectively, said third terminal being connected to one terminal of said load, starting ends of said N first coils and terminal ends of said N second coils having the same polarity, said fourth terminal being connected to the other terminal of said load. - View Dependent Claims (11, 12, 13, 14)
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15. A reactor by which N (N is an integer of 2 or more) power supplies are connected in parallel to a load, said reactor comprising:
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an annular iron core; and N first coils and N second coils separately wound around said iron core; said N first coils having first electrodes connected to first output terminals of said N power supplies, respectively, and second electrodes each connected to one terminal of said load, said N second coils having first electrodes connected to second output terminals of said N power supplies, respectively, and second electrodes each connected to the other terminal of said load, starting ends of said N first coils and terminal ends of said N second coils having the same polarity, said iron core including first and second leg portions, and a yoke portion magnetically coupling the first and second leg portions, said N first coils being separately wound around said first leg portion, said N second coils being separately wound around said second leg portion, and said first coil and said second coil connected to the same power supply being arranged adjacent to each other. - View Dependent Claims (16, 17, 18, 19)
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Specification
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Current AssigneeTmeic Corporation (Toshiba Corporation)
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Original AssigneeToshiba Mitsubishi-Electric Industrial Systems Corporation (Toshiba Corporation)
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InventorsKinoshita, Masahiro
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Primary Examiner(s)Fureman, Jared
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Assistant Examiner(s)Evans, James
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Application NumberUS14/371,092Publication NumberTime in Patent Office2,079 DaysField of SearchUS Class CurrentCPC Class CodesH01F 27/24 Magnetic coresH01F 27/29 Terminals; Tapping arrangem...H01F 37/00 Fixed inductances not cover...H02M 3/1584 with a plurality of power p...
