Invention Grant
US08026680B2 Methods and apparatus to reduce the stopping time of spindle motors 有权
减少主轴电机停机时间的方法和装置

  • Patent Title: Methods and apparatus to reduce the stopping time of spindle motors
  • Patent Title (中): 减少主轴电机停机时间的方法和装置
  • Application No.: US12059131
    Application Date: 2008-03-31
  • Publication No.: US08026680B2
    Publication Date: 2011-09-27
  • Inventor: Triet Tieu
  • Applicant: Triet Tieu
  • Applicant Address: US TX Dallas
  • Assignee: Texas Instruments Incorporated
  • Current Assignee: Texas Instruments Incorporated
  • Current Assignee Address: US TX Dallas
  • Agent Dawn V. Stephens; W. James Brady; Frederick J. Telecky, Jr.
  • Main IPC: H02P3/06
  • IPC: H02P3/06
Methods and apparatus to reduce the stopping time of spindle motors
Abstract:
Methods and apparatus to reduce the stopping time of a spindle motor are disclosed. An example method includes detecting a dissipation current flowing in a spinning motor; determining when the dissipation current drops below a threshold value; and, in response to the dissipation current dropping below the threshold value, applying a voltage to the motor to increase the dissipation current for a duration. In some examples, the voltage is removed from the motor when the motor reaches a predetermined rotational velocity to avoid reverse rotation.
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