High switching frequencies in combination with ZVS allow to increase the power density while reducing the costs of power electronic converters. However, the design of such systems is complex due to the small time constants associated with high switching frequencies. To still benefit from the advantages of high switching frequencies and ZVS, in a wide range of applications, it is desirable to have a general-purpose power electronics building block which provides these hardware-related functions in an encapsulated module via easy-to-use interfaces. Such a power electronics building block that can operate at high switching frequencies and achieves ZVS over the entire operating range is presented. This is achieved by a novel distributed realization of a TCM modulator and the introduction of switch modules. Besides the basic ideas of the switch modules and the distributed TCM modulator, as well as two possible realization variants, the application of the PEBB is demonstrated on the example of a non-isolated DC/DC converter with superimposed closed loop voltage control.
