The patent abstract with the publication number of CN 1 12436747A shows that the application provides an electric drive system, a powertrain and an electric vehicle, and relates to the technical field of electronic circuits. The electric drive system includes a bus, a vehicle charger, a three-level inverter circuit and a controller. Using this electric drive system, the adjustment ability of neutral point potential balance in three-level inverter circuit is improved.
Patent abstract with publication number of CN 1 12436779A shows that the application provides an electric drive system, a powertrain and an electric vehicle, and relates to the technical field of power electronics. The electric drive system is connected with the power battery pack and comprises a bus, a three-level inverter circuit, a DC-DC conversion circuit and a controller. The controller is used to control the first and second conversion circuits. The electric drive system reduces volume and cost. (This article Source: Tianyancha)