ON Semiconductor – NCP1602: Power Factor Controller with Enhanced Light-Load Efficiency

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The NCP1602 PFC controller is designed to drive PFC boost stages. It is based on an innovative Valley Synchronized Frequency Fold-back (VSFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when control voltage exceeds a programmable value Vctrl, FF. When Vcontrol is below this preset level Vctrl, FF, the NCP1602 […]