发明授权
US5327056A Circuit configuration for limiting the cutoff voltage on a servomotor
失效
用于限制伺服电机上的截止电压的电路配置
- 专利标题： Circuit configuration for limiting the cutoff voltage on a servomotor
- 专利标题（中）： 用于限制伺服电机上的截止电压的电路配置
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申请号： US50359申请日： 1993-05-05
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公开(公告)号： US5327056A公开(公告)日： 1994-07-05
- 发明人: Heinz Loreck , Mario Engelmann
- 申请人： Heinz Loreck , Mario Engelmann
- 申请人地址： DEX Frankfurt
- 专利权人： Alfred Teves, GmbH
- 当前专利权人： Alfred Teves, GmbH
- 当前专利权人地址： DEX Frankfurt
- 优先权： DEX4035066 19901105
- 主分类号： H02P3/12
- IPC分类号： H02P3/12 ; H02P3/08
摘要：
A circuit configuration for limiting the cutoff voltage occurring in controlling a servomotor (M) by means of width-modulated DC pulses comprises a power transistor (T2) which, via a capacitor (C) is connected through for a short time when a cutoff voltage appears thus limiting the cutoff voltage. Subsequently the transistor (T2) presents a high impedance. As a result a short-circuiting of the servomotor (M) will be prevented in the phase in which a spring force resets the servomotor into its zero position.
公开/授权文献
- USD384575S Snap 公开/授权日：1997-10-07
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