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http://dx.doi.org/10.13067/JKIECS.2015.10.8.921

Design of a Current Transducer and Over-Current Fault Detection Circuit for Power Strip Applications  

Kim, Yong-Jae (조선대학교 전기공학과학과)
Kim, Min-Seok (조선대학교 전기공학과)
Park, Gyu-Sang (조선대학교 전기공학과)
Kim, Jae-Hong (조선대학교 전기공학과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.10, no.8, 2015 , pp. 921-926 More about this Journal
Abstract
For the over-heat protection purpose in power strip devices, over-current detection/protection circuits, such as bimetal, switching circuit, and microprocessor-based relay circuit, have been widely setup in high-end products. Most of these circuits are connected to the power line in parallel and, thus, they are sensitive to the line voltage and current distortion. Moreover, these protection circuits are often costly and, therefore, it is hard to meet the commercial requirements. A low-cost over-current detection circuit with the contactless current transducer is designed and tested in this paper. The detection circuit is galvanically isolated from the power line and, thus, less sensitive to the line voltage distortion. The experimental results show that the proposed circuit accurately operates despite of its simple structure and low-cost electronic parts.
Keywords
Over-Current Fault Detection Circuit; Secondary Induced Current; Analog Comparator; Current Transducer;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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