Invention Grant
- Patent Title: Method for voltage feedback for current mode linear motor driver
- Patent Title (中): 电流模式直线电机驱动器的电压反馈方法
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Application No.: US10406044Application Date: 2003-04-02
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Publication No.: US07205736B2Publication Date: 2007-04-17
- Inventor: Jonathan R. Knight , Akihiko Miyanohara
- Applicant: Jonathan R. Knight , Akihiko Miyanohara
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent W. James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H02P7/06
- IPC: H02P7/06

Abstract:
Methods and systems for driving a motor are disclosed. A center tap voltage and a desired center tap voltage are used to generate a voltage feedback. A power amplifier receives a reference current and the voltage feedback. The power amplifier provides a phase current to a phase of a motor. The phase current is substantially centered about the desired center tap voltage as a consequence of the voltage feedback. Thus, high-side to low-side or state to state current variations are reduced thereby reducing the occurrence of problems such as torque ripple and back EMF.
Public/Granted literature
- US20060108955A1 Method for voltage feedback for current mode linear motor driver Public/Granted day:2006-05-25
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