Abstract: A buck-boost power conversion system for converting between direct current (“DC”) voltages and alternating current (“AC”) voltages of different magnitudes can include a DC/AC switched network and an AC/AC switched network for converting a DC voltage to an AC voltage of a different magnitude with a minimized number of inductors and without using a transformer. The buck-boost power conversion system can be bidirectional such that a DC voltage can be converted to an AC voltage and an AC voltage can be converted to a DC voltage. A DC voltage can be input to the buck-boost power conversion system and an AC voltage can be output with a greater or lesser magnitude than the DC voltage. In additional or alternative examples, an AC voltage can be input to the buck-boost power conversion system and a DC voltage can be output with a lesser or greater magnitude than the AC voltage.

Abstract: Disclosed herein are techniques of manufacturing semiconductor devices having a positive-bevel termination and/or a negative-bevel termination. In a particular example, techniques are disclosed for manufacture of a chip-size SiC device having an orthogonal positive-bevel termination used for the reverse blocking junction. The edge termination may be formed, for example, by cutting across a SiC wafer with a V-shaped dicing tool or blade. The cut may be performed by any suitable dicing tool. The cut may be across a p-n junction for forming positive-bevel termination. Subsequently, a surface of the termination may be etched for removing damage caused by the cutting process.