Patent · US Active

System and method for demodulation of resolver outputs

US10911061B2 · kind B2 · utility

2Cited by

53References

20Claims

0Family size

Assignee

The Boeing Company · US

Inventors

Douglas C. Cameron · Ladera Ranch, US
Dwayne C. Merna · Yorba Linda, US
Manu Sharma · San Diego, US

Key dates

Filing date	Mar 23, 2018
Grant date	Feb 2, 2021
Priority date	—
Expiry date	Apr 25, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01C21/18
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Demodulation circuitry includes an input terminal configured to be coupled to an analog-to-digital converter (ADC) and configured to receive a plurality of ADC outputs. The plurality of ADC outputs are generated based on resolver outputs. The demodulation circuitry also includes a rectifier configured to rectify the plurality of ADC outputs. Rectifying the plurality of ADC outputs preserves a phase of the plurality of ADC outputs. The demodulation circuitry includes amplitude determination circuitry configured to determine, based on the rectified plurality of ADC outputs, demodulated amplitude values corresponding to the resolver outputs. The demodulation circuitry further includes angle computation circuitry configured to generate position outputs based on the demodulated amplitude values.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.