There are two different approaches, namely conductive and inductive charging, to charge plug-in electric vehicles (PEVs). Conductive chargers have hard-wired connection between the power supply and the PEI for charging, and usually consist of a power factor correction (PFC) AC/DC rectifier followed by a DC/DC converter. Inductive charging or contactless charging does not use wired [..]
In most of the electrified transportation systems, where only batteries are utilized as energy storage system, usually batteries are tailored for the power rather than energy. Present technologies do not provide a battery proficient of high enough power densities without over-sizing it. Moreover, battery lifetime can diminish drastically if it is subjected to instantaneous charge/discharge […]
Miniature power electronic interfaces (PEIs) are intended to address power conditioning for various types of low-power energy sources, such as battery cells or tiny transducers. Power density and light-load efficiency are important performance metrics of power converters, especially for low power applications. Miniaturization and system integration of the PEIs are heavily dependent on the required [..]
The power challenge for micro-robots stems from the fact that the most efficient micro-actuation technologies (electrostatic and piezoelectric) operate at high voltages.
The output voltage of suitable energy sources including conventional chemical batteries, super-capacitors, fuel cells, and solar cells is generally less than 5V. Assuming that the typical driving voltage for electrostatic and piezoelectric actuators [..]
Our research group is studying innovative active and isolated power electronic interfaces and packaging methods to develop highly-efficient and ultra-compact regulated transformer units for next generation of avionic systems.