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US 2021/0325420 A1Published application
Resolver interface systems and methods
AssigneeGoodrich Aerospace Services Private Limited
InventorsSesh Mohan Rao, Ambili Raghavan
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Abstract
A resolver interface system for a motor drive system includes a phase detector configured to be operatively connected to a rotation signal output of a resolver to receive a rotation signal therefrom and generate a phase difference signal. A differentiator is operatively connected to an output of the phase detector to convert the phase difference signal of the phase detector into a pulse output configured to be read by a processing system.
Claims20
A resolver interface system for a motor drive system comprising:
- a phase detector configured to be operatively connected to a rotation signal output of a resolver to receive a rotation signal therefrom and generate a phase difference signal;
- and
- a differentiator operatively connected to an output of the phase detector to convert the phase difference signal of the phase detector into a pulse output configured to be read by a processing system.
A method of determining a shaft angle of a rotor, the method comprising:
- applying an excitation input to at least one of a first stator winding or a second stator winding;
- receiving a rotation signal output from a rotor winding with a phase detector;
- generating a phase difference signal based on the rotation signal output with the phase detector;
- and
- determining a shaft angle of the rotor with a processing system based on the phase difference signal.
2 more elements
Dependencies are inferred from the claim text.