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As the energy demand from low-voltage (LV) DC sources on vehicles keeps increasing, the need for DC-DC converters capable of handling very high current on the LV side is growing. A group of original equipment manufacturers (OEM) have set performance targets for such converters for the years 2015 and 2020. This paper presents an extensive survey of DC-DC converters that are: a) galvanically isolated,...
This paper presents a novel high-frequency split-phase SiC inverter suitable for vehicular power generators. Electrification of vehicles such as recreational vehicles (RV's), fire trucks, and media/telecommunication vans requiring variable-speed generators and power electronics are discussed. Two inverters, designed using commercially available all-SiC MOSFET and Si IGBT power modules, are built and...
In recent years, commercially available wide bandgap (WBG) devices and modules have sparked significant interest among several industries to develop power electronics using WBG technology. The commercial viability and benefits of developing such WBG power electronics are visibly increasing. However, there exists a great deal of information disconnect between the WBG semiconductor manufacturers and...
Electronics installed in automotive systems are subjected simultaneously to mechanical vibrations and thermal loads in underhood applications. Typical failure modes include solder joint failure, pad cratering, chip-cracking, copper trace fracture, and underfill fillet failures. The solder interconnects accrue damage much faster when vibrated at elevated temperatures. Industry migration to leadfree...
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