Fairchild FAN9611 Interleaved Dual BCM PFC Controller
The Fairchild FAN9611 Interleaved Dual BCM (Boundary-Conduction-Mode) PFC (Power-Factor-Correction) Controller operates two parallel-connected boost power trains 180º out of phase. Interleaving extends the practical power level of the FAN9611 Interleaved Dual BCM PFC Controller control technique from about 300W to greater than 800W. Unlike the continuous conduction mode (CCM) technique often used at high power levels, these Fairchild FAN9611 devices offer inherent zero-current switching of the boost diodes, which permits the use of less expensive diodes without sacrificing efficiency. Applications include 100-1000W AC-DC power supplies, large screen LCD-TV, PDP-TV, RP-TV power, high-efficiency desktop and server power supplies, networking and telecom power supplies and solar micro inverters.