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Large area 6.5 kV normally-off JFETs and JBS diodes have been developed for high DC-link voltage applications. The basic performance characteristics are examined along with the switching behavior using double pulse testing at 3 kV, 11A with an inductive load. In addition, a performance comparison between the single 6.5 kV JFET and a 6.0 kV super-cascode approach, built from stacking five normally-on 1.2 kV JFETs, is presented. The technology readiness level of each approach is discussed.

Voltage controlled magnetic components, which consist in dynamically controllable inductances and transformers, are a promising yet understudied technology of growing interest. In fact, these components offer circuit designers an additional degree of freedom to achieve multi-objective optimization with improved Pareto fronts. This article provides a review of some technologies that can be used to create controlled magnetics, including emerging technologies with high potential. Furthermore, a list of possible applications is proposed, where these components can provide a significant advantage in terms of efficiency, size reduction, or controllability. Special emphasis is laid on a use case: a 20 kW multiport DC/DC converter in which power flow control is achieved using voltage-controlled inductors based on partially saturable magnetic cores.