Abstract - Battery charger plays an important role in the
battery and electric vehicle technology. Due to on-board type of
charger it should be light in weight and should occupy less space
as it should be on the vehicle all the time, so the smaller the
better and of course, it is very important to minimize the cost of
the charger. For a plug-in hybrid electric vehicle (PHEV), when
the battery is charging from the grid, the vehicle should be
parked. The traction system components are normally not
engaged during the charging time, thus it is possible to
reconfigure these components for the battery charger system. In
this paper, an innovative integrated battery charger is presented.
The operation mode of charger can be divided into three modes:
boosting drive motor mode, directly drive motor mode and
charging mode. The analysis of these three modes has been
explained in detail and the control scheme is also introduced in
this paper. The simulation model is built using Matlab/Simulink
software, and simulation results have been presented to verify
the operation for battery charger, showing the system has good