CM6502THH

CM6502THH (Turbo-Speed PFC) http://www.championmicro.com.tw EPA/90+ ZVS-Like PFC CONTROLLER Design for High Efficient Power Supply at both Full Load and Light Load GENERAL DESCRIPTION CM6502THH is a ZVS-Like Single PFC and it is designed to meet 90+ spec. (total efficiency). It has the following key features. 1.) Around 2% efficiency gain when the output load is below 40% of the full load 2.) 420V bulk capacitor value can be reduced, and also PFC Boost Capacitor ripple current can be reduced 3.) Turbo Speed PFC may reduce 420 Bulk Capacitor size further 4.) A PGB function is designed for interfacing to next stage controller or the House Keeping IC at secondary side. It has a customer programmable low threshold PGTHL 5.) “Remember it was Light Load” function and “Remember it was Full Load” function may reduce PFC 420V Bulk Capacitor size further. It boosts the total efficiency as well. 6.) Initially, Vin at 230Vac , IC internal determine is low line; therefore at light load,...