ON Semiconductor Höherer Wirkungsgrad im Teillastbereich bei Gegentakt-PFC-Stufen mit NCP1631-Treiber

Environmental concerns lead to new efficiency requirements when designing modern power supplies. For instance, the 80 PLUS initiative and moreover its bronze, silver and gold derivatives force desktops and servers manufacturers to work on innovative solutions. An important focus is on the PFC stage that with the EMI filter can be easily consume 5% to 8% of the output power at low line, full load. Interleaved PFC (IPFC) is one of the options to meet these new requirements.