Tony Goacher] has worked with a lot of cheap brushless DC motor controllers built in China. They can be very cost-effective, ...

Abstract: In a three-phase three-level ac/dc converter, the T-type rectifier features high efficiency and lower power switch stress, and it allows the dc-side voltage to serve as two independent ...

Abstract: Sensorless control technology is critical in ac drive systems. Open-phase faults are a common failure mode in motors, making sensorless control under such faults particularly essential. This ...

Artist renderings and diagrams of the new White House East Wing and Ballroom, briefly posted on the National Capital Planning Commission's website ahead of a March 5, hearing, are photographed Tuesday ...