Abstract—The three level boosting PFC converters on comparison with the conventional boosting PFC converter consists of two cascaded switches and two cascaded capacitor across DC side voltage. Because of the incompatible equivalent series resistance, incompatible capacitance and the incompatible conducting time of switches, the voltages of the two capacitor may vary in order to balance both the capacitor voltage and hence the controller has to sense the capacitor voltages. In this proposed system the number of feedback signals is reduced and SCVBC is used. This SCVBC is digitally implemented using a PIC based system.

Index Terms—Sensorless control, Voltage-balancing control

Cite: R Mangaiyarkkarasy, P Marian Daphne, P Bhavatharani, S Sowmiya and J Pratheebha, "DESIGN AND IMPLEMENTATION OF THREELEVEL BOOSTING PFC WITH SENSORLESS CAPACITOR VOLTAGE BALANCING CONTORL," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 1, No. 1, pp. 166-174, March 2015.