发明名称 |
Speed control circuit for a dental drive motor |
摘要 |
<p>The control circuit has semiconductor transistors (2,..5) in the motor current circuit for short-term interruption of the current and for switching the voltage applied across the motor terminals. A microcontroller (6) has a regulator (7) for comparison of actual and required rev. values, reacting to a rapid drop in the motor revs caused by a rapid increase in the motor loading, to switch the motor torque before the motor comes to a standstill.</p> |
申请公布号 |
EP0729221(B1) |
申请公布日期 |
1999.07.14 |
申请号 |
EP19960102010 |
申请日期 |
1996.02.12 |
申请人 |
SIRONA DENTAL SYSTEMS GMBH |
发明人 |
ALTENDORF, HANS-WALTER, DIPL.-ING. |
分类号 |
A61C1/06;H02H7/08;H02P5/00;H02P7/00;(IPC1-7):H02P7/00 |
主分类号 |
A61C1/06 |
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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