发明授权
US06888327B1 System for protecting a power semiconductor output stage that switches an inductive load
有权
用于保护切换感性负载的功率半导体输出级的系统
- 专利标题： System for protecting a power semiconductor output stage that switches an inductive load
- 专利标题（中）： 用于保护切换感性负载的功率半导体输出级的系统
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申请号： US10070879申请日： 2000-07-25
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公开(公告)号： US06888327B1公开(公告)日： 2005-05-03
- 发明人: Martin Kessler , Stefan Koch
- 申请人： Martin Kessler , Stefan Koch
- 申请人地址： DE Stuttgart
- 专利权人： Robert Bosch GmbH
- 当前专利权人： Robert Bosch GmbH
- 当前专利权人地址： DE Stuttgart
- 代理机构： Kenyon & Kenyon
- 优先权： DE19941698 19990902
- 国际申请： PCTDE00/02421 WO 20000725
- 国际公布： WO0118950 WO 20010315
- 主分类号： H02P6/12
- IPC分类号： H02P6/12 ; H02P25/092 ; H02P6/00
摘要：
A system for protecting a power semiconductor output stage that, as a function of a control signal, connects an inductive load to a direct-current supply voltage and disconnects it therefrom. Protection from the induced voltages is achieved, without a freewheeling diode, in that the disconnection energy occurring at the inductive load upon disconnection can be transferred in transformer fashion to an additional inductance that is loaded with a resistance or is coupled in the countercurrent direction to the direct-current supply voltage.
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