发明名称 |
MCU control for brushless DC motor |
摘要 |
A processor for controlling a sensorless, brushless DC motor is disclosed comprising a first output for providing a control signal to a potentiometer controlling the speed and voltage of the DC motor. The processor also includes a second input for receiving a back-EMF voltage from an open phase of a three phase winding. The processor determines a digital error signal from the back-EMF voltage and generates a control signal responsive to the digital error signal. The control signal decreases the speed of the motor when the digital error signal is in a first range. The processor decreases both the speed and voltage of the motor when the digital error signal is in a second range. The processor increases the speed of the motor when the digital error signal is in a third range. The processor increases both the speed and voltage of the motor when the digital error signal is in a fourth range.
|
申请公布号 |
US6949900(B1) |
申请公布日期 |
2005.09.27 |
申请号 |
US20040881210 |
申请日期 |
2004.06.30 |
申请人 |
SILICON LABORATORIES INC. |
发明人 |
BERRINGER KENNETH ALAN |
分类号 |
H02P7/06;(IPC1-7):H02P7/06 |
主分类号 |
H02P7/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|