公开(公告)号：US09520792B2

公开(公告)日：2016-12-13

申请号：US14141811

申请日：2013-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo He ,  Yihang Lv ,  Weiping Jie

IPC: H02M3/335 ,  H02M3/28 ,  H02M7/487 ,  H02J1/00

CPC classification number: H02M3/335 ,  H02J1/00 ,  H02M3/285 ,  H02M3/33569 ,  H02M7/487 ,  Y02B70/1433 ,  Y10T307/707

Abstract: A staggered parallel three-level DC/DC converter and an AC/DC converter includes: at least one input power supply, N-phase three-level DC/DC circuits, N resonant inductors, N resonant capacitors, N transformers, N rectifier circuits, a first inductor, and an output circuit; one end of an i th resonant inductor is connected to an i th-phase three-level DC/DC circuit, the other end of the i th resonant inductor is connected to an excitation inductor of an i th transformer; one end of an i th resonant capacitor is connected to the i th-phase three-level DC/DC circuit, and the other end of the i th resonant capacitor is connected to the excitation inductor of the i th transformer; or one end of the first inductor is connected to the input power supply, and the other end of the first inductor is connected to the N-phase three-level DC/DC circuit; where N is an integer and is greater than or equal to 2, and i is an integer and 1≦i≦N.

Abstract translation: 交错并联三电平DC / DC转换器和AC / DC转换器包括：至少一个输入电源，N相三电平DC / DC电路，N个谐振电感器，N个谐振电容器，N个变压器，N个整流电路 ，第一电感器和输出电路; 第i个谐振电感的一端连接到i相三电平DC / DC电路，第i个谐振电感的另一端连接到第i个变压器的励磁电感器; 第i个谐振电容器的一端连接到i相三级DC / DC电路，第i个谐振电容器的另一端连接到第i个变压器的励磁电感器; 或者第一电感器的一端连接到输入电源，第一电感器的另一端连接到N相三电平DC / DC电路; 其中N是整数并且大于或等于2，i是整数，1≤i≤N。