HW Issues of Current Sensing by DC-link Shunt Resistor

被引：0
|
作者：
Pacha, Matej [1 ]
Varecha, Patrik [2 ]
Sumega, Martin [2 ]
机构：
[1] NXP Semicond, Roznov Pod Radhostem, Czech Republic
[2] Univ Zilina, Fac Elect Engn, Zilina, Slovakia
来源：
12TH INTERNATIONAL CONFERENCE ELEKTRO 2018 | 2018年
关键词：
DC-link shunt resistor; Kelvin connection; current sensing; power inverter; motor control;
D O I：
暂无
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
This paper deals with issues and challenges of current sensing using DC-link shunt resistor in three-phase power inverter motor control applications. Main parameters of shunt resistors relevant to the DC-link current sensing are discussed. Main factors influencing the accuracy are described, including the shape of the footprint and soldering. An example of a sensing circuit is introduced, discussing the key parameters and challenges needed to be dealt with in terms of the accuracy of the measurement and mainly the proper operation of the sensing circuit in the whole range of operation.
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页数：5
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