Proposal of a switched mode power supply employing a quadratic boost converter and a new topology of soft-switched two-switch forward converter

This paper presents a new topology of soft-switching two-switch forward converter associated to a quadratic boost converter, which provides large voltage step-up (from 12 V/sub dc/ to 80 V/sub dc/). The combination of the stages results in a switched-mode power supply (SMPS), whose output voltages are +200 V/sub dc/ and -200 V/sub dc/. The operation of both converters is analyzed, as some results concerning the proposed SMPS are presented.