內容簡介

Vibration motors are used in a variety of applications
including mobile phone handsets, game joysticks, handheld
video games, pagers, toothbrushes, and razors to name just
a few. Of particular interest is the mobile handset market,
as global production volume is expected to be greater than
1 billion handsets in 2007. The handset market has driven
innovation in the design and manufacturing techniques
of miniature vibration motors. Smaller handsets demand
motors that consume less PCB area, and require a thin
motor design. Motor features for caller ID vibration tones,
and gaming applications are also being added to handsets.
This paper will discuss an advanced Hall-effect technology
Allegro? MicroSystems A1442 brushless direct current
BLDC motor driver ideally suited to deliver advanced
handset vibration motor functionality.

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