Systems and methods for determining rotational position
US11231296B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2016 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Apr 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2086
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A resolver system includes a rotatable primary winding, a secondary winding fixed relative to the primary winding, and an analog-to-digital converter electrically connected to the secondary winding. A control module is operatively connected to analog-to-digital converter and is responsive to instructions to apply an excitation voltage with an oscillating waveform to the primary winding, induce a secondary voltage using the secondary winding using the excitation voltage, and acquire a plurality of voltage measurements from the secondary winding separated by a time interval corresponding to π/3 of the excitation voltage oscillating waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.