| 发明名称 | Systems and method for speed and torque control of a DC motor | ||
| 摘要 | A method for operating a direct current (DC) motor is shown and described. The method includes using pulse width modulated (PWM) DC output to control the speed of the DC motor. The method further includes sensing current output to the motor. When the sensed current exceeds a threshold, the method holds the PWM DC output off. | ||
| 申请公布号 | US8947031(B1) | 申请公布日期 | 2015.02.03 |
| 申请号 | US201213533894 | 申请日期 | 2012.06.26 |
| 申请人 | Johnson Controls Technology Company | 发明人 | Diamond Russell W.;Romanowich Gary A.;Fuhr David R. |
| 分类号 | H02P6/00 | 主分类号 | H02P6/00 |
| 代理机构 | Foley & Lardner LLP | 代理人 | Foley & Lardner LLP |
| 主权项 | 1. A method for operating a direct current (DC) motor, the method comprising: 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; adjusting the first duty cycle to control the speed of the DC motor; using updated temperature information to adaptively select a second duty cycle for a second PWM signal; generating the second PWM signal having the second duty cycle; using the second PWM signal to set a threshold; sensing current output to the motor; and when the sensed current exceeds the threshold, holding the PWM DC output off. | ||
| 地址 | Holland MI US | ||