公开(公告)号：US20190013741A1

公开(公告)日：2019-01-10

申请号：US16132048

申请日：2018-09-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanzhong ZHANG ,  Fernando RUIZ GOMEZ ,  Georgios TSENGENES ,  Grover Victor TORRICO-BASCOPÉ

IPC: H02M3/335 ,  H02M1/08

CPC classification number: H02M3/33576 ,  H02M1/083 ,  H02M3/285 ,  H02M3/337 ,  H02M2001/0058 ,  H02M2001/0074 ,  H02M2007/4815 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: A resonant circuit includes first, second, and third input nodes configured to receive a three phase input power and is formed as a delta circuit including a first leg connected between a first corner node and a second corner node, a second leg connected between the second corner node and a third corner node, and a third leg connected between the third corner node and the first corner node. A first outer resonant device is connected between the first input node and the first corner node, a second outer resonant device connected between the second input node and the second corner node, and a third outer resonant device connected between the third input node and the third corner node. Each leg of the delta circuit includes an inner resonant device connected in series with a corresponding transformer.