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
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Application No.: US12059131Application Date: 2008-03-31
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Publication No.: US08026680B2Publication 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

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.
Public/Granted literature
- US20090243521A1 METHODS AND APPARATUS TO REDUCE THE STOPPING TIME OF SPINDLE MOTORS Public/Granted day:2009-10-01
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