Invention Grant
US08749215B2 Switching method to reduce ripple current in a switched-mode power converter employing a bridge topology 有权
采用桥接拓扑的开关式功率转换器的开关方法,以减少纹波电流

  • Patent Title: Switching method to reduce ripple current in a switched-mode power converter employing a bridge topology
  • Patent Title (中): 采用桥接拓扑的开关式功率转换器的开关方法,以减少纹波电流
  • Application No.: US12872831
    Application Date: 2010-08-31
  • Publication No.: US08749215B2
    Publication Date: 2014-06-10
  • Inventor: Richard K. Hester
  • Applicant: Richard K. Hester
  • Applicant Address: US TX Dallas
  • Assignee: Texas Instruments Incorporated
  • Current Assignee: Texas Instruments Incorporated
  • Current Assignee Address: US TX Dallas
  • Agent Alan A. R. Cooper; W. James Brady, III; Frederick J. Telecky, Jr.
  • Main IPC: G05F1/00
  • IPC: G05F1/00 H02M3/158 H02M1/14
Switching method to reduce ripple current in a switched-mode power converter employing a bridge topology
Abstract:
Traditionally, buck-boost switching regulators with bridge topologies have been avoided due to their inability to seamlessly transition between buck mode and boost mode. Here, however, a buck-boost switching regulator with a bridge topology has been provided, which has an improved controller. Namely, a processor (such as a digital signals processor or DSP) provides digital control for the bridge that reduces ripple current or variations in the inductor current by adjusting phase relationships between corresponding buck and boost switches in a bridge or buck-boost mode.
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