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변영복(Y.B.Byun),구태근(T.G.Koo),김은수(E.S.Kim),조기연(K.Y.Joe),김동희(D.H.Kim),변동환(D.H.Byun) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.7
Most of the battery charger for electric powered forklift truck are controlled by the method of 3-phased constant current and constant voltage. However, these chargers have several disadvantages like a large charger capacity, and a short battery life time.<br/> This paper presents a digital type battery charger based on multi-mode control adding a constant power control and several assistant controls in the conventional control. The whole control system is performed by a low cost one-chip micro-controller and completely digitize. So we can get a high precision control and a good reliability.<br/>