Invention Grant
US08952597B2 Method for operating an output stage for at least one piezoactuator 有权
用于对至少一个压电致动器进行输出级的操作的方法

  • Patent Title: Method for operating an output stage for at least one piezoactuator
  • Patent Title (中): 用于对至少一个压电致动器进行输出级的操作的方法
  • Application No.: US13138397
    Application Date: 2010-01-05
  • Publication No.: US08952597B2
    Publication Date: 2015-02-10
  • Inventor: Stefan FuchsMarco Graf
  • Applicant: Stefan FuchsMarco Graf
  • Applicant Address: DE Stuttgart
  • Assignee: Robert Bosch GmbH
  • Current Assignee: Robert Bosch GmbH
  • Current Assignee Address: DE Stuttgart
  • Agency: Kenyon & Kenyon LLP
  • Priority: DE102009001077 20090223
  • International Application: PCT/EP2010/050034 WO 20100105
  • International Announcement: WO2010/094516 WO 20100826
  • Main IPC: H01L41/09
  • IPC: H01L41/09 H02N2/06 F02D41/20
Method for operating an output stage for at least one piezoactuator
Abstract:
A method for operating an output stage for a piezoactuator includes checking, during an operating phase, in response to the undershooting of a current for the piezoactuator below a setpoint current, whether a point in time for the undershooting lies outside or within a time window. A subsequent current pulse is controlled via the setpoint current if the point in time is located outside the time window, and the subsequent current pulse is controlled via a turn-on time if the point in time is located within the time window.
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