发明名称 |
Drive circuit and method for an electric actuator with spring return |
摘要 |
A spring return rotary actuator incorporating a DC brush commutated electric motor and a pulse width modulation drive circuit which reduces the voltage at which current is supplied to the motor once a rotation sensor senses that the actuator output shaft has stalled. The drive circuit also includes a temperature responsive feature which increases the voltage at which current is supplied to the motor in the event a sensed temperature exceeds a temperature limit.
|
申请公布号 |
US6249100(B1) |
申请公布日期 |
2001.06.19 |
申请号 |
US19970904005 |
申请日期 |
1997.07.31 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
LANGE CHRISTOPHER M. |
分类号 |
G05B19/404;(IPC1-7):H02P3/18;H02P7/74 |
主分类号 |
G05B19/404 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|