Invention Grant
- Patent Title: Soft start motor control using back-EMF
- Patent Title (中): 使用反电动势软启动电机控制
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Application No.: US12081459Application Date: 2008-04-16
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Publication No.: US07848067B2Publication Date: 2010-12-07
- Inventor: Robert Quincy Elliott , Michael Scott Britton , Mark Andrew Sporer
- Applicant: Robert Quincy Elliott , Michael Scott Britton , Mark Andrew Sporer
- Applicant Address: CH Geneva
- Assignee: Caterpillar S.A.R.L.
- Current Assignee: Caterpillar S.A.R.L.
- Current Assignee Address: CH Geneva
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner LLC
- Main IPC: H02H7/08
- IPC: H02H7/08
Abstract:
A method of controlling in-rush current to a DC motor is disclosed. The method may include operating the DC motor in a first mode including applying back-EMF across a relay coil to maintain the relay in an open configuration when the back-EMF is below a predetermined voltage. The method may also include operating the DC motor in a second mode including applying the back-EMF across the relay coil to maintain the relay in a closed configuration when the back-EMF is equal to or above the predetermined voltage.
Public/Granted literature
- US20090263110A1 Soft start motor control using back-EMF Public/Granted day:2009-10-22
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