Optimized Design of Charger for Electric Vehicles with Enabled Efficient CCCV Mode Movement

摘要

This paper presents a charger technology for the electric vehicles that enables charge and discharge not only for low voltage and high voltage but also for any battery type by using a high performance DSP. The proposed charger was made to function as generalized fast and low battery by using PWM buck converter that runs with CCCV(Constant Current Constant Voltage) mode. Besides, by designing the controller as fixed-type and varied suiting to the load characteristics, constant output was ensured even during power trip. Also, by controlling the battery type, charge, and discharge, a/s becomes easy. This battery would be possibly implemented not only in the Off Board Charger of the electric vehicles but also in the On Board Charger of EREV(Electric Range Extender Vehicle) in future.