Rotation angle sensor system and semiconductor device
US11056935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2019 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Sep 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A synthesis circuit synthesizes detection signals from a plurality of detection coils to generate a synthesized detection signal indicating a sine component of a rotation angle of a rotor. In this regard, the detection coils which are synthesis targets when the synthesis circuit generates the synthesized detection signal include a detection coil of a salient pole installed at a first electrical angle based on a first pole of the rotor and detection coils of salient poles installed at a second electrical angle different from the first electrical angle based on the first pole, and do not include detection coils installed at the first electrical angle based on a second pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.