Electric power converter device

An electric power converter device for charging a battery in a vehicle, the electric power converter device comprising:

• an AC-to-DC power converter operable to convert alternating current from a power source to direct current DC power;
• a power factor converter PFC electrically coupled to the AC-to-DC power converter and configured to increase a voltage level of the DC power to a first voltage output;
• a DC-to-DC converter electrically coupled to the power factor converter and configured to decrease the DC power from the power factor converter from the first voltage output to a second voltage output;
• a power output device configured to provide electrical power to the battery in the vehicle;
• a bypass switch operable to electrically couple the power output device to one of the power factor converter or the DC-to-DC converter such that the electrical power outputted by the power output device is based on one of the first voltage output or the second voltage output;
• and
• a controller configured to control the electrical power supplied to the battery via the bypass switch, wherein the controller operates the bypass switch based on a current output voltage of the power factor converter and a desired DC-to-DC output voltage of the DC-to-DC converter and switches the bypass switch between a first state, whereby the bypass switch electrically couples the power output device to the DC-to-DC converter, and a second state, whereby the bypass switch electrically couples the power output device to the power factor converter.