The high prices of energy are leading to renewed interest in the more efficient motors driven by Variable Frequency Drives or VFDs. Many types of motors such as brushless DC motors, switched ...

Find a downloadable version of this story in pdf format at the end of the story. Due to the ever-increasing efficiency requirements, many power supply manufacturers are starting to look into ...

AC-rectified power sources with capacitive filtering draw high-amplitude discontinuous currents, resulting in poor power factor and a power line rich in harmonics and high circulating currents. Poor ...

Modern electronic systems need small, lightweight, high-efficiency power supplies. These supplies require cost-effective methods to take power from the AC power distribution grid and convert it to a ...