BATTERY CHARGING DEVICE ADAPTIVELY VARYING CHARGING VOLTAGE AND METHOD FOR CONTROLLING BATTERY CHARGING THEREOF

摘要

Provided are a battery charging device which adaptively varies charging voltage and a method for controlling battery charging thereof. The battery charging device controls switching action of a switching unit to supply charging power to selected battery cells based on voltage of the battery cells, and controls voltage of the charging power supplied from a charging unit based on the number of the selected battery cells. Accordingly, the invention removes unnecessary energy consumption by cell balancing and reduces charging time.