SMJ40 Overview
SM-SME001-0504 .. Stepping Motor Mobile equipment Digital cameras, Mobile equipments, PDA, etc. Office automation equipment Printers, facsimiles, Typewriters, Photocopiers, FDD head drives, CD-ROM pickup drives, Scanners, etc. Audio-visual equipment Video cameras, Digital cameras, etc. Measuring instruments Automotive odometers, Various integrating meters and counters Game equipment Pachinko machines, etc. Structure and operation Stepper motors convert electric pulses into incremental mechanical motions. FDK's stepper motors have a claw-pole yoke structure with a cylindrical permanent magnet rotor, as illustrated below. These motors rotate when a rotating magnetic field is generated and when the rotor magnet is synchronized with the rotating magnetic field. Specifically, a rotating field is generated by applying alternating current to the solenoid coils of two stators, which are...