Rotary and linear motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 6, 2002
Grant Date -
N/A
app pub date -
Jan 28, 2000
filing date -
Jan 28, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary and linear motor having a rotor, a casing and a plurality of stator coils mounted to the interior of the casing spaced from the rotor and radially spaced apart around the rotor. A rotary and linear motor control circuit is operative to receive input data signals and to process these data signals so as to produce a plurality of pulse width modulated output control signals. A multi-phase inverter circuit is coupled to an output of the rotary and linear motor control circuit and is responsive to the plurality of output control signals to drive the stator coils and produce a desired z-axis displacement, z, and rotor angular displacement, .theta..
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