The study of the Asymmetrical Half-Bridge Converter With magnetic coupled post regulator

  • Hyeon, Byeong-Cheol (School of Electrical Engineering and Computer Science Seoul National Univ.) ;
  • Cho, Bo-Hyung (School of Electrical Engineering and Computer Science Seoul National Univ.)
  • Published : 2007.11.30

Abstract

In this paper, a multiple-output converter using a coupledinductor is proposed. The Asymmetrical Half-Bridge Converter (AHBC), which is used as a master converter, obtains ZVS in the primary side switches. For the tight output voltage regulation of the slave output, the Secondary Side Post Regulator (SSPR) is adopted. The proposed magnetically coupled output filter inductor reduces the number of semi-conductor devices and magnetic components. Also, the circuit enables ZCS off switching in the SSPR MOSFET and rectifying diodes. The modes of operation which are caused by the coupled-inductor and post regulator are explained. The analyzed modes of operation of the proposed multiple-output converter are verified by the simulation and experimental results.

Keywords