Invention Grant
- Patent Title: Methods and apparatus to lock a phase lock loop to a motor
- Patent Title (中): 将锁相环锁定到电机的方法和装置
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Application No.: US11697520Application Date: 2007-04-06
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Publication No.: US07960936B2Publication Date: 2011-06-14
- Inventor: Liyong Chen , Irfan A. Chaudhry , Steven Chacko
- Applicant: Liyong Chen , Irfan A. Chaudhry , Steven Chacko
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Dawn V. Stephens; Wade James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: G05B11/36
- IPC: G05B11/36
Abstract:
Methods and apparatus to lock a phase lock loop to a spindle motor are disclosed. An example controller comprises a counter to determine a period of an operating signal received from a motor, an oscillator to generate a control signal based on an input signal, and an initializer to generate the input value based on the period, wherein the input value causes the oscillator to generate the control signal having the same phase as the operating signal.
Public/Granted literature
- US20080112696A1 METHODS AND APPARATUS TO LOCK A PHASE LOCK LOOP TO A MOTOR Public/Granted day:2008-05-15
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