公开(公告)号：US20190207527A1

公开(公告)日：2019-07-04

申请号：US16329554

申请日：2017-08-28

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takaaki NORISADA ,  Keiji AKAMATSU ,  Fumito KUSAMA ,  Go YAMADA ,  Yutaka KAMON ,  Makoto OZONE

IPC: H02M3/335 ,  H02M1/42 ,  H01F38/14

CPC classification number: H02M3/33584 ,  H01F38/14 ,  H02M1/42 ,  H02M5/293 ,  H02M7/48 ,  H02M7/797

Abstract: A control unit controls an inverter circuit such that a positive voltage and a negative voltage are alternately applied to a primary winding. The control unit controls a cycloconverter so as to allow no power to be transmitted between the cycloconverter and the inverter circuit in a first period including an inversion period during which a voltage of the primary winding has its polarity inverted. The control unit also controls the cycloconverter so as to allow power to be transmitted either in a first direction from the cycloconverter toward the inverter circuit, or in a second direction opposite from the first direction, in a second period different from the first period.