公开(公告)号：US20150049515A1

公开(公告)日：2015-02-19

申请号：US13965771

申请日：2013-08-13

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： JUDONG ZHAO ,  TILLASTHANAM V. SRIRAM

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M3/3376 ,  H02M2001/0032 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02B70/16

Abstract: A LLC resonant converter that includes a plurality of electronic switches arranged to form a bridge and a controller. The bridge is operable to an operating mode that includes a full-bridge mode and a half-bridge mode. The controller is configured to adjust an operating frequency used to operate the bridge based on a comparison of a set-point value to an output value of an output voltage generated by converter, change the operating mode to the half-bridge mode if the operating mode is the full-bridge mode, an output current of the converter is less than a minimum current threshold, and the operating frequency is greater than a maximum frequency threshold, and change the operating mode to the full bridge mode if the operating mode is the half-bridge mode, and the operating frequency is less than a minimum frequency threshold.

Abstract translation: 一种LLC谐振变换器，包括布置成形成桥的多个电子开关和控制器。 桥可操作到包括全桥模式和半桥模式的操作模式。 控制器被配置为基于将设定点值与由转换器产生的输出电压的输出值进行比较来调整用于操作电桥的工作频率，如果操作模式将操作模式改变为半桥模式 是全桥模式，转换器的输出电流小于最小电流阈值，工作频率大于最大频率阈值，如果工作模式为半桥模式，则将工作模式更改为全桥模式 桥模式，工作频率小于最小频率阈值。