Invention Grant
- Patent Title: Systems and method for speed and torque control of a DC motor
- Patent Title (中): 直流电机的速度和转矩控制系统和方法
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Application No.: US14581373Application Date: 2014-12-23
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Publication No.: US09509242B2Publication Date: 2016-11-29
- Inventor: Russell W. Diamond , Gary A. Romanowich , David R. Fuhr
- Applicant: Johnson Controls Technology Company
- Applicant Address: US MI Plymouth
- Assignee: Johnson Controls Technology Company
- Current Assignee: Johnson Controls Technology Company
- Current Assignee Address: US MI Plymouth
- Agency: Foley & Lardner LLP
- Main IPC: H02P7/00
- IPC: H02P7/00 ; H02P7/29 ; H02P29/00 ; H02P29/02 ; H02H7/08 ; H02H7/085
Abstract:
A method for operating a direct current (DC) motor is shown and described. The method includes generating a first pulse width modulated (PWM) signal having a first duty cycle, providing the first PWM signal as a PWM DC output for the DC motor, and adjusting the first duty cycle to control a speed of the DC motor. The method further includes sensing an electric current output to the motor using a current sensor and, when the sensed current exceeds a threshold, holding the PWM DC output off.
Public/Granted literature
- US20150108933A1 SYSTEMS AND METHOD FOR SPEED AND TORQUE CONTROL OF A DC MOTOR Public/Granted day:2015-04-23
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