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1. 发明申请

WO2013038366A2 CIRCUIT FOR A SMALL ELECTRIC APPLIANCE WITH AN ACCUMULATOR AND METHOD FOR MEASURING A CHARGING CURRENT 审中-公开
标题翻译：具有蓄电池的小型电器的电路和用于测量充电电流的方法
公开(公告)号：WO2013038366A2
公开(公告)日：2013-03-21
申请号：PCT/IB2012054783
申请日：2012-09-13
申请人： BRAUN GMBH , KLEMM THORSTEN , FARANDA LEO , KUECHLER KERVIN HEINRICH
发明人： KLEMM THORSTEN , FARANDA LEO , KUECHLER KERVIN HEINRICH
CPC分类号： H02J7/0068 , H02J7/022 , H02J2007/0095 , Y10T307/406
摘要： The invention relates to a circuit for a battery-operated small electric appliance having a rechargeable battery (B), a control circuit (uC) for measuring the charging current of the rechargeable battery (B), and a DC-DC converter (DC/DC) which supplies the control circuit (uC) and possibly further loads from the battery. The circuit has further a current sensing resistor (R1), whose one end lies at a reference potential and whose other end is connected to the battery (B). The control circuit (uC) has a terminal which is at reference potential and a measurement input which is related to the reference potential. A method for measuring the charging current of the rechargeable battery includes that said control circuit (uC) measures the charging current only when the at least one further load is switched off or the control circuit (uC) provides at least one correction value to the measured charging current when the at least one further load is not is switched off during the current measurement.
摘要翻译：本发明涉及一种用于具有可再充电电池（B），用于测量可再充电电池（B）的充电电流的控制电路（uC）以及DC-DC转换器（DC / DC转换器）的电池供电的小电器的电路， DC），其向控制电路（uC）供电并且可能从电池进一步供应负载。该电路还有一个电流检测电阻（R1），其一端位于参考电位，另一端连接电池（B）。控制电路（uC）具有一个处于参考电位的端子和一个与参考电位相关的测量输入。用于测量可再充电电池的充电电流的方法包括：所述控制电路（uC）仅在所述至少一个另外的负载断开时或者所述控制电路（uC）向所述测量值提供至少一个校正值时测量所述充电电流当在所述电流测量期间切断所述至少一个另外的负载时的充电电流。

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