@article{russi_martins_gründling_pinheiro_pinheiro_hey_2005,  title={An imroved design for ZVT DC-DC PWM converters with snubber assisted auxiliary switch},  volume={16},  ISSN={0103-1759},  url={https://doi.org/10.1590/S0103-17592005000100003},  DOI={10.1590/S0103-17592005000100003},  number={1},  journal={Sba: Controle & Automação Sociedade Brasileira de Automatica},  publisher={Sociedade Brasileira de Automática},  author={Russi, J. and Martins, M. L. and Gründling, H. A. and Pinheiro, H. and Pinheiro, J. R. and Hey, H. L.},  year={2005},  month={Jan},  pages={25–33} }