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1. Development of 2-Phase/4-Phase Flat-Type Vibration Motor.

Author

Won, S. H., Lim, S. B., Koo, D. H., and Lee, J.

Subjects
VIBRATION (Mechanics), MOTORS, ELECTRIC brushes, COMMUTATION (Electricity), ROTORS, MECHANICS (Physics)
Abstract

Due to the mechanical angle error between two brushes and commutation patterns on the rotor PCB, a fatal defect—starting failure—could be detected in the vibration motor. In order to eliminate this failure, we have developed a new winding method, double winding, to make a 4-phase vibration motor with only 2 bunches of coil. By this winding method, we could eliminate the starting failure successfully and save the manufacturing cost. [ABSTRACT FROM AUTHOR]

Published
2006
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