Open AccessRobust Safety Circuits for DC Powered Home Appliances in Transient State
Author(s) -
Jung-Hoon Ahn,
Yun-Sung Kim,
Byoung-Kuk Lee
Publication year - 2014
Publication title -
journal of electrical engineering and technology/journal of electrical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.226
H-Index - 27
eISSN - 2093-7423
pISSN - 1975-0102
DOI - 10.5370/jeet.2014.9.6.1967
Subject(s) - inrush current , transient (computer programming) , electronic circuit , state (computer science) , engineering , computer science , transient state , power (physics) , electrical engineering , reliability engineering , voltage , algorithm , transformer , physics , quantum mechanics , operating system
In this paper, for the development of a safe and reliable DC home appliance suitable for DC home power supply system, we classified a number of inherent problems with help of the comparative analysis of existing AC and new DC home appliance. Several new technical problems of DC home appliances are mainly linked to the DC transient state. Among them, this paper concentrates on start-up inrush current problem, uni-polarity problem, and heavy DC load control problem. And to address these problems, we herein present an implementation of robust safety circuits for DC home appliances. Specifically, we investigate several multi-circuit countermeasures and select the best among them through comparative evaluation, based on theoretical, simulational, and experimental results.