CONTROL CIRCUIT APPARATUS OF BATTERY SYSTEM AND BATTERY MANAGEMENT SYSTEM

This application provides a control circuit apparatus (300) of a battery system and a battery management system, and is applied to the field of battery equalization technologies. The control circuit apparatus (300) in this application includes a switch matrix network unit (301), a first equalization unit (3022), and a second equalization unit (3021). The switch matrix network unit (301) is configured to: form a loop between m battery units in the battery system and the first equalization unit (3022), and form a loop between the m battery units in the battery system and the second equalization unit (3021). The first equalization unit (3022) discharges a high-voltage battery unit through a resistor unit, and the second equalization (3021) unit charges a low-voltage battery unit through a transformer. In technical solutions of this application, because an MOS transistor of the second equalization unit (3021) is easier to drive compared with an MOS transistor of a bidirectional equalization circuit in the conventional technology, complexity of a driving apparatus of the MOS transistor of the equalization circuit of the battery system may be reduced.