Sinusoidal modulation control methods and circuits for permanent magnet synchronous motors
US-9317019-B2 · Apr 19, 2016 · US
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Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P25/023 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 5 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and apparatus for estimating angles in a synchronous machine
US-9225274-B2 · Dec 29, 2015 · US
Motor control apparatus and magnetic-pole position estimating method
US-9154065-B2 · Oct 6, 2015 · US
Method for determining the rotor position of a synchronous machine operated in field-oriented manner
US-9154073-B2 · Oct 6, 2015 · US
Electronic commutation method in direct current electric motors
US-9118268-B2 · Aug 25, 2015 · US