Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2005-01-11
2005-01-11
Le, Dang (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C318S254100, C318S132000, C318S434000
Reexamination Certificate
active
06841903
ABSTRACT:
A method for detecting the position of a rotor of a DC motor with N phases having a plurality of windings, comprising the steps of connecting two of the windings between first and second prefixed voltages through to a first current path for a prefixed time, allowing the current stored in the two windings to discharge through a second current path; comparing the voltage across one of the two windings with a reference voltage and providing a control signal when the voltage is smaller in absolute value than the reference voltage, performing the above steps for each of the winding pairs of the motor; detecting the position of the rotor on the basis of the control signals obtained.
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Boscolo Michele
Brambilla Massimiliano
Galbiati Ezio
Bennett II Harold H.
Le Dang
Seed IP Law Group PLLC
STMicroelectronics S.r.l.
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