Abstract: Being different from the traditional single-phase PFC circuit chips used to control,a new CCM non-linear PFC controller-ICE1PCS01 is used,and a new single-phase PFC control circuit is designed.Compared with the traditional PFC solutions,the new IC doesn't need the reference sine wave signal directly from AC power.The chip uses an average current control method,and PF can reach 1.To ensure the PF and harmonic components to meet the requirements under the premise,it greatly reduces the cost of the design of PFC converter.It can be widely used in the small and medium-sized low-cost power PFC circuit,and also provides a new way of thinking for PFC.

Key words: PFC, ICE1PCSO1, control circuit