Advanteges of using Two-Switch Forward in Single-Stage Power Factor Corrected Power Supplies

Lars Petersen

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

    Abstract

    A single-Stage power factor corrected power supply using a two-switch forward is proposed to increase efficiency. The converter is operated in the DCM (Discontinues Conduction Mode). This will insure the intermediate DC-bus to be controlled only by means of circuit parameters and therefore independent of load variations. The DCM operation often has a diminishing effect on the efficiency. It will be shown that high efficiency and minimum circuit complexity can be achieved with the proposed topology even though operated in the DCM.A 500W 70V prototype of the proposed two-switch Boost-Forward PFC power supply has been implemented. The measured efficiency and power factor are about 87% and 0.96 respectively.
    Original languageDanish
    Title of host publicationAdvanteges of using Two-Switch Forward in Single-Stage Power Factor Corrected Power Supplies
    Publication date2000
    Publication statusPublished - 2000
    EventNORpie/2000 - Aalborg
    Duration: 1 Jan 2000 → …

    Conference

    ConferenceNORpie/2000
    CityAalborg
    Period01/01/2000 → …

    Cite this

    Petersen, L. (2000). Advanteges of using Two-Switch Forward in Single-Stage Power Factor Corrected Power Supplies. In Advanteges of using Two-Switch Forward in Single-Stage Power Factor Corrected Power Supplies