Invention Grant
US09112405B2 Voltage converter with step-down converter circuit and method for converting voltage 有权
具有降压转换电路的电压转换器和转换电压的方法

  • Patent Title: Voltage converter with step-down converter circuit and method for converting voltage
  • Patent Title (中): 具有降压转换电路的电压转换器和转换电压的方法
  • Application No.: US13320473
    Application Date: 2010-04-29
  • Publication No.: US09112405B2
    Publication Date: 2015-08-18
  • Inventor: Jan Enenkel
  • Applicant: Jan Enenkel
  • Applicant Address: AT Unterpremstaetten
  • Assignee: ams AG
  • Current Assignee: ams AG
  • Current Assignee Address: AT Unterpremstaetten
  • Agency: McDermott Will & Emery LLP
  • Priority: DE102009020834 20090511
  • International Application: PCT/EP2010/055857 WO 20100429
  • International Announcement: WO2010/130588 WO 20101118
  • Main IPC: G05F1/00
  • IPC: G05F1/00 H02M3/07 H05B33/08
Voltage converter with step-down converter circuit and method for converting voltage
Abstract:
A voltage converter comprises a step-down converter circuit (DCDC) with an inductive accumulator (LSW) and a first capacitive accumulator (CDC) and a charge pump circuit (CP) with at least one second capacitive accumulator (CFLY, CFLY1,CFLY2). The step-down converter circuit (DCDC) which can be fed a supply voltage (VBAT) on the input side is designed to charge the first capacitive accumulator (CDC) to a first intermediate voltage in switched mode. The charge pump circuit (CP) is designed to charge the at least one second capacitive accumulator (CFLY, CFLY1,CFLY2) to a second intermediate voltage using the supply voltage (VBAT) and to generate an output voltage from the first and second intermediate voltages.
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