Invention Grant
- Patent Title: Circuit and method for speed monitoring of an electric motor
- Patent Title (中): 电动机速度监控电路及方法
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Application No.: US14256230Application Date: 2014-04-18
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Publication No.: US09331617B2Publication Date: 2016-05-03
- Inventor: Daniel Lopez-Diaz , Hans Gommeringer
- Applicant: Daniel Lopez-Diaz , Hans Gommeringer
- Applicant Address: US TX Austin
- Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee Address: US TX Austin
- Main IPC: H02P8/14
- IPC: H02P8/14 ; H02P8/34 ; H02P8/38 ; H02P6/18
Abstract:
A method for determining a phase angle between voltage applied to a winding of the electric motor and an electric current flowing through the winding may include receiving a signal from the electric motor, including a value of a voltage applied to a winding of the electric motor. The method may also include determining a value of an electric current flowing through the winding and determining a phase angle between the voltage applied to the winding and the electric current flowing through the winding. The method may also include determining a speed or a stall state of the electric motor.
Public/Granted literature
- US20140292252A1 CIRCUIT AND METHOD FOR SPEED MONITORING OF AN ELECTRIC MOTOR Public/Granted day:2014-10-02
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