An electric vehicle charging circuit includes a first power converting circuit configured to provide an output current to charge an electric vehicle, a power storage device, and a second power converting circuit electrically coupled between the power storage device and a bus, and configured to bi-directionally transmit power between the storage device and the bus. The first power converting circuit includes an AC/DC converter configured to convert an AC voltage to a bus voltage to the bus, and a DC/DC converter electrically coupled to the AC/DC converter at the bus and configured to output the output current. The second power converting circuit includes an isolated bidirectional converter.