US 9,812,934 B2
Inverter device and inverter-integrated electric motor
Yasushige Mukunoki, Chiyoda-ku (JP)
Assigned to Mistubishi Electric Corporation, Chiyoda-ku (JP)
Appl. No. 14/771,665
Filed by Mitsubishi Electric Corporation, Chiyoda-ku (JP)
PCT Filed Sep. 26, 2013, PCT No. PCT/JP2013/076069
§ 371(c)(1), (2) Date Aug. 31, 2015,
PCT Pub. No. WO2014/171023, PCT Pub. Date Oct. 23, 2014.
Claims priority of application No. 2013-085413 (JP), filed on Apr. 16, 2013.
Prior Publication US 2016/0013706 A1, Jan. 14, 2016
Int. Cl. H02K 11/00 (2016.01); H02K 11/02 (2016.01); H02K 11/05 (2016.01); H02M 7/537 (2006.01); H02K 11/33 (2016.01); H02M 7/493 (2007.01); H02M 7/00 (2006.01)
CPC H02K 11/02 (2013.01) [H02K 11/024 (2013.01); H02K 11/05 (2016.01); H02K 11/33 (2016.01); H02M 7/537 (2013.01); H02M 7/003 (2013.01); H02M 7/493 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An inverter device characterized by comprising:
power semiconductor element groups respectively forming two systems of inverters each converting DC power to AC power;
DC bus bars through which DC power supplied to the corresponding power semiconductor element groups;
DC input terminals connected to the respective DC bus bars so as to supply DC power from an outside power supply to the connected DC bus bars;
first and second switches provided between the DC input terminals and the respective DC bus bars to switch the corresponding DC bus bars to be electrically conductive or cut off, and
capacitors connected to the respective DC bus bars,
impedances in a high-frequency area of the first and second switches being set to be higher than impedances of the DC bus bars.