Invention Grant
- Patent Title: System and method for driving three-phase motor
- Patent Title (中): 驱动三相电机的系统和方法
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Application No.: US13221045Application Date: 2011-08-30
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Publication No.: US09000697B2Publication Date: 2015-04-07
- Inventor: Gregory Swize
- Applicant: Gregory Swize
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Alan A. R. Cooper; Frank D. Cimino
- Main IPC: H03K5/00
- IPC: H03K5/00 ; H02P6/18 ; H02P6/00

Abstract:
The present invention provides a method for driving a three-phase motor with a driver. The driver can provide a pulse-width modulated driving signal and a linear driving signal. The three-phase motor has a first leg, a second leg and a third leg. The method includes: connecting the second leg to the driver; floating the third leg; driving the second leg with the pulse-width-modulated driving signal from the driver; estimating a time when a voltage in the third leg will reach a predetermined threshold; and driving the second leg with the linear driving signal during that time.
Public/Granted literature
- US20130049658A1 SYSTEM AND METHOD FOR DRIVING THREE-PHASE MOTOR Public/Granted day:2013-02-28
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