Angular resolver imbalance detection

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United States of America Patent

PATENT NO 10884037
APP PUB NO 20180073895A1
SERIAL NO

15263114

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Abstract

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An angular resolver system includes, for example, an imbalance detector for detecting degraded resolver output signals. The imbalance detector includes a first and second power averaging circuits and a comparator circuit. The first power averaging circuit includes a first integrator for generating over a first time window a first average power signal in response to resolver sensor output signals. The second power averaging circuit includes a second integrator for generating over a second time window a second average power signal in response to the resolver sensor output signals, where the first time window is longer than the second time window. The comparator circuit compares the first average power signal and the second average power signal and generates a fault signal when the first average power signal and the second average power signal differ by a selected voltage threshold.

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Patent Owner(s)

  • TEXAS INSTRUMENTS INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chellamuthu, Shanmuganand Richardson, US 19 50
Easwaran, Sri Navaneethakrishnan Plano, US 16 39
Li, Qunying Allen, US 24 107

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