A New Standby Structure Based on a Forward Converter Integrated With a Phase-Shift Full-Bridge Converter for Server Power Supplies

作者：Cho Shin Young^*; Lee Il Oun; Kim Jae Kuk; Moon Gun Woo

来源：IEEE Transactions on Power Electronics, 2013, 28(1): 336-346.

DOI：10.1109/TPEL.2012.2195507

• Forward
• high efficiency
• integration
• server power supply
• standby power
• zero voltage switching

This paper presents a new standby structure where a forward converter is integrated with a dc-dc phase-shift full bridge (PSFB) converter for server power supplies. While a typical standby structure consists of an independent flyback converter, the proposed standby structure is integrated with one leg of the dc-dc PSFB converter. Its main advantages are that the voltage across a standby switch is clamped at the link voltage across the link capacitor and that the standby switch achieves zero-voltage switching over entire load range. The validity of the proposed standby structure is confirmed by the experimental results from 12 V/58 A for the dc-dc output prototype and 11.5 V/1.5 A for the standby output prototype.

• 出版日期2013-1