Invention Grant
US07675255B2 Back EMF reduction in a storage drive using pulse width modulation in a closed loop motor control system
有权
在闭环电动机控制系统中使用脉冲宽度调制的存储驱动器中的EMF减小
- Patent Title: Back EMF reduction in a storage drive using pulse width modulation in a closed loop motor control system
- Patent Title (中): 在闭环电动机控制系统中使用脉冲宽度调制的存储驱动器中的EMF减小
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Application No.: US11669615Application Date: 2007-01-31
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Publication No.: US07675255B2Publication Date: 2010-03-09
- Inventor: Allen K. Bates , Nhan Xuan Bui , Reed A. Hancock , Louis P. Russo
- Applicant: Allen K. Bates , Nhan Xuan Bui , Reed A. Hancock , Louis P. Russo
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Konrad Raynes & Victor LLP
- Agent William K. Konrad
- Main IPC: H02P3/00
- IPC: H02P3/00
Abstract:
A storage drive implements a method for a BEMF voltage reduction during a deceleration period of an electric motor of the storage drive. In operation, the electric motor is disconnected from a power supply during an entirety of the deceleration period of the electric motor to prevent any flow of a BEMF current into the power supply, and the electric motor is connected to a power return during a segment or an entirety of the deceleration period of the electric motor to dissipate any BEMF voltage within the electric motor.
Public/Granted literature
- US20080180828A1 Back EMF Reduction in a Storage Drive Using Pulse Width Modulation in a Closed Loop Motor Control System Public/Granted day:2008-07-31
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