Control apparatus for rotating electric machine
US-12341452-B2 · Jun 24, 2025 · US
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for demagnetising; for reducing effects of remanence
for demagnetising; for reducing effects of remanence · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P9/123 |
| Official title | {for demagnetising; for reducing effects of remanence} |
| Display label | for demagnetising; for reducing effects of remanence |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
De-exciting system for inductive circuits
US-12301158-B2 · May 13, 2025 · US
Method for rapid de-excitation of a rotor of a separately excited synchronous machine of a motor vehicle, separately excited synchronous machine for a motor vehicle and motor vehicle
US-2025080014-A1 · Mar 6, 2025 · US
De-Exciting System for Inductive Circuits
US-2023370003-A1 · Nov 16, 2023 · US
Control apparatus for rotating electric machine
US-2023361705-A1 · Nov 9, 2023 · US
Regenerative current limiting of synchronous motor drives
US-11349430-B2 · May 31, 2022 · US
Control method and switching device
US-11095211-B2 · Aug 17, 2021 · US
Permanent magnet synchronous motor
US-11011965-B2 · May 18, 2021 · US
Regenerative current limiting of synchronous motor drives
US-2021111661-A1 · Apr 15, 2021 · US
Control Method and Switching Device
US-2019252973-A1 · Aug 15, 2019 · US
Use of a control system of a polyphase rotary electric machine comprising phase short-circuit means, and use of the corresponding rotary electric machine
US-2019044465-A1 · Feb 7, 2019 · US
Permanent magnet synchronous motor
US-2018219463-A1 · Aug 2, 2018 · US