Rotor flux time delay reduction through initial rotor current for electrically excited synchronous machines
US-2024063744-A1 · Feb 22, 2024 · US
Arrangements for controlling wound field motors, e.g. motors with exciter coils
Arrangements for controlling wound field motors, e.g. motors with exciter coils · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P6/32 |
| Official title | Arrangements for controlling wound field motors, e.g. motors with exciter coils |
| Display label | Arrangements for controlling wound field motors, e.g. motors with exciter coils |
| Total patents | 118 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 8 |
| 2017 | 5 |
| 2018 | 14 |
| 2019 | 14 |
| 2020 | 12 |
| 2021 | 7 |
| 2022 | 9 |
| 2023 | 10 |
| 2024 | 17 |
| 2025 | 15 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and system for brushless wound field synchronous machines
US-2021336574-A1 · Oct 28, 2021 · US
Field excitation system and method for a wound rotor synchronous generator
US-2021203259-A1 · Jul 1, 2021 · US
Permanent magnet based electric machine having enhanced torque
US-10819259-B2 · Oct 27, 2020 · US
Control device for electric generator/motor and control method for electric generator/motor
US-10804833-B2 · Oct 13, 2020 · US
Power output device
US-10797631-B2 · Oct 6, 2020 · US
Variable torque electric motor assembly
US-10770994-B2 · Sep 8, 2020 · US
Field winding type rotating electric machine
US-10756661-B2 · Aug 25, 2020 · US
Dynamoelectric machine fault monitoring system, computer program product and related methods
US-10739405-B2 · Aug 11, 2020 · US
Field winding type rotating electric machine
US-10727773-B2 · Jul 28, 2020 · US
Waveform shaping in power tool powered by alternating-current power supply
US-10710220-B2 · Jul 14, 2020 · US
Rotary electrical machine
US-2020161910-A1 · May 21, 2020 · US
Wireless power transfer method using field winding and vehicle assembly and electric vehicle using the same
US-10640001-B2 · May 5, 2020 · US
Motor control device and motor control method
US-2020136543-A1 · Apr 30, 2020 · US
Control apparatus for rotary electric machines
US-10608566-B2 · Mar 31, 2020 · US
Control device of electric rotating machine
US-10498272-B2 · Dec 3, 2019 · US
Waveform shaping in power tool powered by alternating-current power supply
US-2019314961-A1 · Oct 17, 2019 · US
Field winding type rotating electric machine
US-2019312539-A1 · Oct 10, 2019 · US
Field winding type rotating electric machine
US-2019296672-A1 · Sep 26, 2019 · US
Control device for electric generator/motor and control method for electric generator/motor
US-2019253012-A1 · Aug 15, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P6/32?
- CPC H02P6/32 is the Cooperative Patent Classification code for “Arrangements for controlling wound field motors, e.g. motors with exciter coils.”
- How many patents are filed under CPC H02P6/32 (Arrangements for controlling wound field motors, e.g. motors with exciter coils)?
- Our database includes 118 publications tagged with this CPC code.
- Is patent activity under CPC H02P6/32 growing?
- Publication counts under this code: 17 in 2024 vs 15 in 2025 (latest complete years).