US 12,009,734 B2
Power conversion device and air conditioner
Yusuke Yamakaji, Tokyo (JP); Ikuro Suga, Tokyo (JP); Satoru Ichiki, Tokyo (JP); Koichi Arisawa, Tokyo (JP); and Tatsuya Yamanaka, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/913,871
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Apr. 20, 2020, PCT No. PCT/JP2020/017057
§ 371(c)(1), (2) Date Sep. 23, 2022,
PCT Pub. No. WO2021/214831, PCT Pub. Date Oct. 28, 2021.
Prior Publication US 2023/0344330 A1, Oct. 26, 2023
Int. Cl. H02M 7/537 (2006.01); H02M 1/00 (2006.01); H02M 7/5387 (2007.01)
CPC H02M 1/0064 (2021.05) [H02M 1/0012 (2021.05); H02M 7/53871 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power conversion device comprising:
at least one external electrode;
a switch;
a noise filter connected between the at least one external electrode and the switch;
at least one first wire to connect the at least one external electrode and the noise filter;
a second wire to connect the noise filter and the switch; and
a magnetic filter attached to the second wire, wherein
an attenuation characteristic A [dB] and an attenuation characteristic B [dB] satisfy a relationship of B<A, where A is an attenuation characteristic of the noise filter and B is an attenuation characteristic due to spatial coupling between the at least one first wire and the second wire that is located between the switch and the magnetic filter.