发明授权
US06680598B2 Circuit for the speed recovery of a direct current motor and method using said circuit
有权
用于直流电动机速度恢复的电路和使用所述电路的方法
- 专利标题: Circuit for the speed recovery of a direct current motor and method using said circuit
- 专利标题(中): 用于直流电动机速度恢复的电路和使用所述电路的方法
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申请号: US09988911申请日: 2001-11-19
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公开(公告)号: US06680598B2公开(公告)日: 2004-01-20
- 发明人: Ezio Galbiati , Maurizio Nessi , Luca Schillaci
- 申请人: Ezio Galbiati , Maurizio Nessi , Luca Schillaci
- 优先权: EP00830764 20001120
- 主分类号: H02P500
- IPC分类号: H02P500
摘要:
A circuit for the speed recovery of a direct current motor includes an output stage, output stage having a first pair of transistors, a second pair of transistors, and means a first circuit configured to detect a current circulating in the motor. The output stage further includes a second circuit configured to, activate the second pair transistors for a determined first time period so as to short-circuit the motor, and, at the end of the first time period, unbalance the output stage so as to force a maximum current to circulate for a determined second time period as a function of a value detected by the first circuit during the first time period, so as to stop the motor.
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