Single- and three-phase alternating current (AC) motor speed can be controlled by controlling the frequency of the voltage coming to it. Motor speed has a lot to do with the capacity of refrigeration ...

(1) TT is usual for writers of books on electrical J- engineering- to confine themselves to the theory either of direct-current or of alternating-current practice. In an elementary treatise, how ever, ...

In November and December of 1887, Tesla filed for seven U.S. patents in the field of polyphase AC motors and power transmission. These comprised a complete system of generators, transformers, ...

Part of the iMotion family, the IRMCF341 sensorless motion-control platform from International Rectifier (El Segundo, CA) is designed for direct-drive PMSM washing-machine motors. Available in 40 to ...

I desire to express my thanks to Professor Anthony for the help he has given me in this matter. I would also like to express my thanks to Mr. Pope and Mr. Martin for their aid. The notice was rather ...

H-bridge buck-boost ICs are widely used in applications requiring a constant voltage or current source even when the system battery drops to lower voltages. They make sense when a single-stage ...