This paper presents a hi-directional power converter used on one hand as a battery charger and on the other hand as a nmotor speed controller. Different possibilities are presented and a comparison of these structums is caried out. In battery charger mode, the power converter has to absorb a sinusoidal current with a unit power factor. Accordinlg to the power range, two possibilities are presented: the isolated CUK converner wtlh a 1.5kW DC motor and a pulse widtlh modulation (P.W.M.)inverter/rectifier to supply a 6kW induction machine. 12K 2005 -[)re.dcii It' Coliver= LL,;m 'w; a battery ClLirgu mid aspc.-.,d omtmllu itt aa iticlustrhd truck LACRESSONNT-H Fabicll E1.E m)5 -DrAc11i ISBN: 9(U7548 t-':-I,.t

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