发明名称 Method and circuit arrangement with adaptive overload protection for power switching devices
摘要 Dynamic thresholds for power circuit switch operation are calculated in real-time using instantaneous operating parameter measurements. The dynamic thresholds are self-adapting and are used to provide shutdown criteria independent of switch control systems. A characteristics field containing information related to operation parameters is used to make overload evaluations in real-time. These dynamic overload evaluations allow complete protection against thermal overload for entire power circuits in addition to power components. Reserve load capacity can also be determined based on well known component characteristics, which permits the power circuit to be driven at optimal efficiency. The power circuit output profile can also be modified in response to dynamic overload evaluation, thus preventing overload shutdown or damage to components, while operating at optimal efficiency.
申请公布号 US7035064(B2) 申请公布日期 2006.04.25
申请号 US20030411875 申请日期 2003.04.10
申请人 SEMIKRON ELEKTRONIK GMBH 发明人 SCHIMANEK ERNST;BILLMANN MARKUS
分类号 H02H7/09;H02M1/00;H03K17/08;H03K17/082 主分类号 H02H7/09
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