Transformer based DC current sensor for digitally controlled power supplies

被引：0
|
作者：
Ziegler, S. [1 ]
Borle, L. J. [1 ]
Iu, H. H. C. [1 ]
机构：
[1] Univ Western Australia, PEARL, Sch Elect Elect & Comp Engn, Crawley, WA 6009, Australia
来源：
2007 AUSTRALASIAN UNIVERSITIES POWER ENGINEERING, VOLS 1-2 | 2007年
关键词：
current measurement; current transformers; magnetic amplifiers; magnetic transducers; digital control; switched mode power supplies;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Twenty years ago, R. Severns presented a transformer based circuit which is able to measure DC currents. However, this circuit did not experience a break-through in the industry or even academic world because it requires too many components and is unable to measure small currents. This paper enhances this circuit so that it becomes feasible to measure currents down to zero. The circuit complexity is no longer an obstacle because in digital controlled power supplies the DSP provides the required auxiliary functionalities. The feasibility of the proposed circuit has been proven by hardware experiment.
引用
收藏
页码：381 / 386
页数：6
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