100 Watt Universal Input PFC Boost Using NCP1601A
This document presents a Power Factor Correction (PFC) boost regulator example circuit using NCP1601A with the design steps and measurement. The measurement shows that the circuit has a greater than 0.9 Power Factor under the universal input (85 to 265 VAC). The NCP1601A is one of the latest ON Semiconductor low−power PFC products which can operate in both Discontinuous Conduction Mode (DCM) and Critical Mode (CRM). The DCM feature limits the maximum switching frequency for easier front−ended EMI filter design and the CRM feature limits the current stress on inductor, MOSFET and diode for better size, cost, and reliability.Download document [PDF]
