Resolver signal processing
AssigneeInfineon Technologies AG
InventorsMihail Jefremow, Michael Augustin, Ketan Dewan, Ralph Mueller-Eschenbach, Juergen Schaefer
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Abstract
Processing a resolver signal by a microcontroller includes generating, by a carrier signal generator, a carrier signal for output to a resolver; receiving modulated carrier signals from a resolver via hardware that is external to the microcontroller; integrating, by an integrator, respective integrator input signals which are based on the modulated carrier signals, to generate respective envelope signals, wherein a start of an integration window of the integrator is set with respect to a start of the carrier signal; and determining an angular position sensed by the resolver based on the envelope signals.
Claims20
A method for processing a resolver signal by a microcontroller, comprising:
- generating, by a carrier signal generator, a carrier signal for output to a resolver;
- receiving modulated carrier signals from a resolver via hardware that is external to the microcontroller;
- integrating, by an integrator, respective integrator input signals which are based on the modulated carrier signals, to generate respective envelope signals, wherein a start of an integration window of the integrator is delayed to be in synchronism with a start of the carrier signal;
- and
- determining an angular position sensed by the resolver based on the envelope signals.
A microcontroller for processing a resolver signal, comprising:
- a carrier signal generator configured to generate a carrier signal for output to a resolver;
- and
- an integrator configured to integrate integrator input signals to generate respective envelope signals by delaying a start of an integration window to be in synchronism with a start of the carrier signal, wherein the integrator input signals are based on respective modulated carrier signals received from the resolver via hardware that is external to the microcontroller, and the envelope signals are for determining an angular position sensed by the resolver.
Dependencies are inferred from the claim text.