H02P 9/16
Due to variation of ohmic resistance in field circuit, using resistances switched
Official title: due to variation of ohmic resistance in field circuit, using resistances switched in or out of circuit step by step
H02P9/16 (Due to variation of ohmic resistance in field circuit, using resistances switched) appears on 7 US grants and 7 published applications in this corpus.
Search patents in H02P- Granted patents
- 7
- Published applications
- 7
- Assignees
- 7
- Inventors
- 17
- Latest grant
- 16 Jul 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
By publication year.
Subgroups
Granted patents
Recent patents
- Variable impedance device for a wind turbine16 Jul 2019US 10,352,304 B2Ingeteam Power Technology, S.A.
- Electronically commutated motor with correction of sensed rotation-direction signal5 Nov 2013US 8,575,874 B2ebm-Papst St.Georgen GmbH & Co. KG
- Method for sensorless operation of an ECM, and motor for carrying out22 Oct 2013US 8,564,231 B2ebm-Papst St.Georgen GmbH & Co. KG
- Electric load damper for damping torsional oscillation10 Jul 2012US 8,217,630 B2Hamilton Sundstrand Corporation
- Method for sensorless operation of an electronically commutated motor and motor for carrying out such a method15 Nov 2011US 8,058,825 B2ebm-Papst St.Georgen GmbH & Co. KG
- Field winding circuit for an alternator, alternator comprising the same, and associated methods9 Nov 2023US 2023/0361701 A1Volvo Truck Corporation
- Variable impedance device for a wind turbine17 Nov 2016US 2016/0333856 A1Ingeteam Power Technology, S.A.
- Method for sensorless operation of an ecm, and motor for carrying out24 May 2012US 2012/0126729 A1ebm-Papst St.Georgen GmbH & Co. KG
- Method for sensorless operation of an ecm, and motor for carrying out24 May 2012US 2012/0126730 A1ebm-Papst St.Georgen GmbH & Co. KG
- Electric load damper for damping torsional oscillation19 May 2011US 2011/0115444 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Position sensorless motor control apparatus87US 6,462,491 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Electric load damper for damping torsional oscillation13US 8,217,630 B2Hamilton Sundstrand Corporation · 2012
- Method for sensorless operation of an electronically commutated motor and motor for carrying out such a method11US 8,058,825 B2ebm-Papst St.Georgen GmbH & Co. KG · 2011
- Permanent-magnet generator with high-power output5US 7,256,567 B2Fuji Cera-Tech Co., Ltd. · 2007
- Variable impedance device for a wind turbine2US 10,352,304 B2Ingeteam Power Technology, S.A. · 2019