An active gate controlled power transfer switch using SiC-MOSFET is proposed to achieve the fault tolerant operation of ISOP (Input Series and Output parallel) multicellular dc-dc converter. The SiC-MOSFET with high temperature capability simplifies the configuration of the protection circuit, and the control of its on-resistance by the active gate control realizes the smooth protection without the voltage and the current surges. The first laboratory prototype of the power transfer switch is developed by using a pair of a SiC-MOSFET and a high frequency buck chopper for the active gate controller. The effectiveness of the proposed transfer switch is verified, taking the impact of the volume reduction into account.
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.