| CPC H05K 1/0296 (2013.01) [H02M 7/003 (2013.01); H02M 7/483 (2013.01); H02M 7/539 (2013.01); H02P 27/06 (2013.01); H05K 1/181 (2013.01); H05K 2201/1009 (2013.01)] | 15 Claims |
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1. A power module comprising:
an insulation substrate;
a first input terminal supported by the insulation substrate;
a second input terminal supported by the insulation substrate;
a plurality of arm circuits provided on the insulation substrate; and
a plurality of output terminals corresponding to the plurality of arm circuits, respectively,
wherein each of the plurality of arm circuits includes a part of a wiring pattern formed on the insulation substrate, and includes a first switching element and a second switching element mutually connected in series via the part of the wiring pattern,
each of the plurality of output terminals is connected to a connection point between the first switching element and the second switching element in a corresponding one of the plurality of arm circuits,
the plurality of arm circuits are located so as to overlap with a circle surrounding the first input terminal, as viewed in a thickness direction of the insulation substrate,
the plurality of arm circuits include a first arm circuit, a second arm circuit, and a third arm circuit,
the wiring pattern includes a first wiring section constituting the first arm circuit, a second wiring section constituting the second arm circuit, and a third wiring section constituting the third arm circuit,
the plurality of output terminals include a first output terminal connected to the first wiring section, a second output terminal connected to the second wiring section, and a third output terminal connected to the third wiring section,
the second input terminal include a first terminal section, a second terminal section, and a third terminal section, which are spaced apart from each other,
the first terminal section is connected to the first wiring section,
the second terminal section is connected to the second wiring section,
the third terminal section is connected to the third wiring section,
the first wiring section, the second wiring section, and the third wiring section each include a first conductive section radially extending from the first input terminal as viewed in the thickness direction, a second conductive section connected to the first conductive section and electrically connected to the first switching element, a third conductive section electrically connected to a connection point between the first switching element and the second switching element, and a fourth conductive section electrically connected to the second switching element,
the first output terminal, the second output terminal, and the third output terminal are located in the third conductive section in the first wiring section, the third conductive section in the second wiring section, and the third conductive section in the third wiring section, respectively, and
the first terminal section, the second terminal section, and the third terminal section are located in the fourth conductive section in the first wiring section, the fourth conductive section in the second wiring section, and the fourth conductive section in the third wiring section, respectively.
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