CONVERTER DEVICE FOR HIGH-EFFICIENCY CHARGER OF SECONDARY BATTERY, CHARGING SYSTEM INCLUDING SAME, AND OPERATION METHOD THEREOF

摘要

The present invention relates to a converter device for a high-efficiency charger of a secondary battery, a charging system including the same, and an operation method thereof. The present invention is to minimize a converting loss by controlling DSP to mix two converter topologies in series and maximize an effective advantageous of each topology. According to the present invention, the converter device for a high efficiency charger of a secondary battery includes: a primary main switching unit (200) switching an input voltage; a secondary phase shift bridge (PSFB) rectification unit (310) outputting a regulated DC output voltage; a secondary half bridge (HB) LLC rectification unit (320) outputting a fixing DC output voltage by being connected to the secondary PSFB rectification unit (310) in series; and a control unit (400) outputting a control signal controlling the primary main switching unit (200) using a whole output voltage of the secondary rectification unit and controlling the secondary PSFB rectification unit (310) and the secondary HB LLC rectification unit (320) at the same time by single feedback.;COPYRIGHT KIPO 2017