Design and Measurement of Integrated Converters for Belt-Driven Starter-Generator in 48 V Micro/Mild Hybrid Vehicles

With reference to a 48 V belt-driven starter-generator used in micro/mild hybrid vehicles, this paper shows the design and measurement of an integrated H-bridge and of a compact dc/dc converter, both fabricated in low-cost high voltage-metal oxide semiconductor (HV-MOS) technology. The H-bridge is in charge of rotor excitation and, thanks to a direct copper bonding of the HV-MOS devices on a ceram...