Eberlin, M.M.EberlinKhani, M.M.Khani2022-03-132022-03-132016https://publica.fraunhofer.de/handle/publica/4004272-s2.0-84996689310A DC/DC dual active bridge converter for connecting modular low voltage battery packs to a high voltage DC bus is presented. It enables easy scalability of the power output. The converter topology allows the use of zero voltage switching which enables a reduction of the switching losses. But in some operation points this feature is lost. To maximize the efficiency of the converter a variable frequency modulation scheme was developed. The experimental results show an improvement of the efficiency curve.en621697conference paper