发明授权
- 专利标题: Active free-running element
- 专利标题(中): 主动自由运行的元素
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申请号: US61847申请日: 1993-05-14
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公开(公告)号: US5430366A公开(公告)日: 1995-07-04
- 发明人: Ricardo Erckert , Michael Lenz
- 申请人: Ricardo Erckert , Michael Lenz
- 申请人地址: DEX Munich
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DEX Munich
- 优先权: DEX4215980.6 19920514
- 主分类号: H02M3/155
- IPC分类号: H02M3/155 ; H02M3/158 ; G05F1/44
摘要:
A switching regulator includes an inductive load. A monolithically integrated active free-running element includes an npn transistor switching the inductive load to generate a free-running current carried by the transistor. The transistor has a base terminal and collector and emitter terminals defining a collector-to-emitter voltage. A drive circuit has an output terminal connected to the base terminal of the transistor to trigger the transistor for operating the transistor largely into the saturation range, whenever the collector-to-emitter voltage of the transistor is positive.
公开/授权文献
- US6110537A Coating integrated circuits using thermal spray 公开/授权日:2000-08-29
信息查询
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