Patent ID: 9641092
Date: 2017-05-02
CPC Classifications: H02M,H05K,Y02B

Claim:
1. A power converter that directly converts polyphase AC power to AC power, the power converter comprising: a converter circuit including a plurality of first switching elements that are connected to phases of the polyphase AC power to enable switching for turning on current-carrying bidirectionally and a plurality of second switching elements that are connected to the phases of the polyphase AC power to enable switching for turning on current-carrying bidirectionally; a plurality of input lines connected to input terminals of the plurality of first switching elements and input terminals of the plurality of second switching elements respectively; a first output line connected to output terminals of the plurality of first switching elements and a second output line connected to output terminals of the plurality of second switching elements; and protection circuits that are respectively connected to the first switching elements and second switching elements, wherein the power converter has components arranged in a physical arrangement as follows: physical positions of the output terminals of the plurality of first switching elements are physically arranged in a line and physical positions of the output terminals of the plurality of second switching elements are physically arranged in a line; in a plan view, physical positions of the plurality of first switching elements are physically arranged in a first line and the plurality of second switching elements are physically arranged in a second line, such that the first line and the second line are parallel with the first and second output lines; and physical positions of parts of wiring of the protection circuits are physically arranged between (1) the physical positions of the first switching elements and (2) the physical positions of the second switching elements.