公开(公告)号：US11183322B2

公开(公告)日：2021-11-23

申请号：US15958220

申请日：2018-04-20

Applicant: ABB Schweiz Ag

Inventor： Harish Suryanarayana ,  Jiaqi Liang ,  Jukka Pekka Kittila ,  Wen Ouyang

IPC: H01F3/14 ,  H01F27/28 ,  H01F29/14 ,  H01F27/24 ,  H01F21/08

Abstract: Unique systems, methods, techniques and apparatuses for a ZVT ZCT resonant converter with a variable resonant tank are disclosed. One exemplary embodiment is a system comprising a bidirectional resonant converter comprising an input/output terminal, a switching device coupled with the input/output terminal, a resonant circuit coupled with the switching device and including a variable inductor, an output/input terminal coupled with the resonant circuit, and a DC biasing circuit operatively coupled with the variable inductor. The variable inductor comprises a toroidal core, a first winding wound around the toroidal core and coupled with the switching device and the output/input terminal, a second core structured to overlap a portion of the toroidal core, and a second winding wound around the second core and coupled with the DC biasing circuit. The DC biasing circuit is controllable to vary the inductance of the variable inductor by saturating a portion of the toroidal core.

公开(公告)号：US20180241300A1

公开(公告)日：2018-08-23

申请号：US15958220

申请日：2018-04-20

Applicant: ABB Schweiz Ag

Inventor： Harish Suryanarayana ,  Jiaqi Liang ,  Jukka Pekka Kittila ,  Wen Ouyang

IPC: H02M1/088 ,  H02M3/335 ,  H01F3/14 ,  H01F29/14 ,  H01F27/24 ,  H01F27/28 ,  H02J50/12 ,  H02M7/537 ,  H02M1/00 ,  H01F21/08

CPC classification number: H02M1/088 ,  H01F3/14 ,  H01F21/08 ,  H01F27/24 ,  H01F27/28 ,  H01F27/2895 ,  H01F29/14 ,  H01F2029/143 ,  H02J50/12 ,  H02M3/33507 ,  H02M3/33584 ,  H02M7/537 ,  H02M7/5387 ,  H02M2001/0003 ,  H02M2001/0058 ,  H02M2007/4815 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: Unique systems, methods, techniques and apparatuses for a ZVT ZCT resonant converter with a variable resonant tank are disclosed. One exemplary embodiment is a system comprising a bidirectional resonant converter comprising an input/output terminal, a switching device coupled with the input/output terminal, a resonant circuit coupled with the switching device and including a variable inductor, an output/input terminal coupled with the resonant circuit, and a DC biasing circuit operatively coupled with the variable inductor. The variable inductor comprises a toroidal core, a first winding wound around the toroidal core and coupled with the switching device and the output/input terminal, a second core structured to overlap a portion of the toroidal core, and a second winding wound around the second core and coupled with the DC biasing circuit. The DC biasing circuit is controllable to vary the inductance of the variable inductor by saturating a portion of the toroidal core.