BIDIRECTIONAL CONVERTER FOR A BATTERY MANAGEMENT SYSTEM

The invention relates to a battery management system for an electric vehicle comprising a high voltage battery, low voltage battery and a bidirectional converter. The bidirectional converter is configured to connect the high voltage battery to the low voltage battery and to generate a power flow between the high voltage battery and the low voltage battery. The bidirectional converter is further configured to monitor a first voltage associated with the high voltage battery and a second voltage associated with the low voltage battery, and to control a voltage ratio of the first voltage and the second voltage to remain in a predetermined range, by controlling the power flow between the high voltage battery and the low voltage battery.