| US 7,518,890 B2 | ||
| AC/DC/AC converter with reduced inductance in the DC filter capacitors | ||
| Masayuki Hirota, Narashino (Japan); Satoshi Ibori, Yachimata (Japan); Tomoya Kamezawa, Narashino (Japan); and Jiangming Mao, Narashino (Japan) | ||
| Assigned to Hitachi, Ltd., Tokyo (Japan) | ||
| Filed on Aug. 23, 2006, as Appl. No. 11/508,198. | ||
| Claims priority of application No. 2005-307967 (JP), filed on Oct. 24, 2005. | ||
| Prior Publication US 2007/0091652 A1, Apr. 26, 2007 | ||
| Int. Cl. H01G 4/228 (2006.01) | ||
| U.S. Cl. 363—34 [363/37; 363/45; 361/306.1; 361/329] | 10 Claims |
| 6. A power converter device comprising:
a converter part which converts a power from a power source to a DC power;
a smoothing part which smoothes an output from the converter part where a first capacitor part and a second capacitor part
are connected in series; and
an inverter part which converts an output of the smoothing part to an AC power and outputs it;
a wiring planar conductor surface of a first wiring planar conductor which connects a P phase of a positive electrode side
of said inverter part and a positive electrode of said capacitor part;
a second wiring planar conductor which connects a negative electrode of said second capacitor part and a N phase on a negative
electrode side of said inverter part and is arranged so as to mutually overlap with said first wiring planar conductor; and
a third wiring planar conductor which is interposed between said first and second wiring planar conductors so as to mutually
overlap with said first and second wiring planar conductors and connects a negative electrode of said first capacitor part
and a positive electrode of said second capacitor part;
wherein a direction of a current which flows in said third wiring planar conductor flows in a direction opposite to a direction
of a current which flows in said first wiring planar conductor or said second wiring planar conductor.
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