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Three Phase Permanent Magnet Step Motor

IP.com Disclosure Number: IPCOM000066020D
Original Publication Date: 1979-Jan-01
Included in the Prior Art Database: 2005-Feb-19

Publishing Venue

IBM

Related People

Authors:
Chai, HD Mako, J [+details]

Abstract

A three-phase permanent magnet (PM) step motor offers a number of advantages, such as increasing torque with increasing current near the stable detent position, similar torque with one- or two-phase energization, a cogging torque in the absence of current, better acceleration, and fewer drivers required.