Electronic device for starting and controlling a permanent-magnet synchronous motor
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United States of America Patent
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N/A
Issued Date -
Sep 25, 2003
app pub date -
Mar 10, 2003
filing date -
Mar 11, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An electronic device for starting and controlling a permanent-magnet synchronous motor, including logic control means, at least one switch arranged in series between an external power source and a permanent-magnet synchronous motor, and sensor means suitable to determine the polarity and position of the rotor of the motor. The logic control means are suitable to send a driving signal to the at least one switch as a function of a position signal that arrives from the sensor means and of a synchronization signal that arrives from the external power source. The logic control means include processing and filtering means that are suitable to determine a phase shift of the position signal as a function of the rotation rate of the rotor and of the specific application.
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