A comparative evaluation of DCM control and CCM control for soft-switching PFC converter

Harmonic currents generated from the power electric equipment such as IH cooking heaters involve harmful influences to the other equipments connected to the utility grid. As for the IH cooking appliances, adding the PFC converter to the input stage of IH cooking heater is one of the practical solutions to suppress harmonic current influences. In this paper, two operation modes; DCM and CCM for the PFC converter are compared and tested from the view points of magnetic volume and power quality to clarify the suitable operation mode for consumer IH cooking appliance.