Power Factor Correction Converter for Battery Charging Application

A Power factor correction (PFC) converter used to input current track the input voltage so the harmonic of input current is reduced and improved power factor. Non-isolated boost converter is used to improve power factor and regulate the DC link voltage. The series inductor will remove ripple current from next to the rectifier, also Continuous conduction mode (CCM) is obtain with higher values of an inductor. In many industrial PFC applications the major concern of the conventional PFC converter inductor volume and switching losses will affect the efficiency of the converter. In this proposed topology the voltage are boosted and regulate DC link voltage. Hence the CCM mode need to be concern, which is controlled by Closed loop PI (Proposals integral) Controller, i.e. MOSFET and GTO. In this proposal the current is sensed by the Current transformer (CT), and its values taken as reference to the input current.