Charger and discharger for secondary battery

Abstract

A charger and discharger for a secondary battery includes a secondary battery coupled to an output stage of the charger and discharger, a first converter circuit including a first pulse voltage generator that outputs a first pulse voltage according to a first duty ratio, and a first inductor that outputs a first current in proportion to a value of an integral of the outputted first pulse voltage with respect to time to a positive electrode terminal of the secondary battery, a second converter circuit including a second pulse voltage generator that outputs a second pulse voltage according to a second duty ratio, and a second inductor that outputs a second current in proportion to a value of an integral of the outputted second pulse voltage with respect to time to a negative electrode terminal of the secondary battery, and first and second controllers controlling the duty ratios of the first and second pulse voltage generators, respectively.

Dependencies are inferred from the claim text.