发明名称 |
Drive circuit and method for an electric actuator with spring return |
摘要 |
<p>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. <IMAGE></p> |
申请公布号 |
EP0895346(A2) |
申请公布日期 |
1999.02.03 |
申请号 |
EP19980305905 |
申请日期 |
1998.07.24 |
申请人 |
HONEYWELL INC. |
发明人 |
LANGE, CHRISTOPHER M. |
分类号 |
G05B19/404;(IPC1-7):H02P7/00;F16K31/04 |
主分类号 |
G05B19/404 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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