New York subway ends its MetroCard era and switches fully to tap-and-go fares

When the MetroCard replaced the New York City subway token in 1994, the swipeable plastic card infused much-needed modernity ...
IEEE

Effects of Current Commutation Methods on SiC MOSFET and Si IGBT Based 4-Quadrant Switches

Abstract: Silicon Carbide (SiC) MOSFETs are promising replacements for Silicon (Si) IGBTs in various power electronic topologies. While extensive research exists on SiC MOSFET based 2-quadrant ...