H02P 7/0094
Wherein the position is detected using the ripple of the current caused
Official title: {wherein the position is detected using the ripple of the current caused by the commutator}
H02P7/0094 (Wherein the position is detected using the ripple of the current caused) appears on 132 US grants and 125 published applications in this corpus.
Search patents in H02P- Granted patents
- 132
- Published applications
- 125
- Assignees
- 93
- Inventors
- 242
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 4 |
| 2002 | 3 | 1 |
| 2003 | 6 | 7 |
| 2004 | 3 | 7 |
| 2005 | 6 | 1 |
| 2006 | 5 | 2 |
| 2007 | 3 | 7 |
| 2008 | 3 | 5 |
| 2009 | 3 | 1 |
| 2010 | 6 | 6 |
| 2011 | 1 | 4 |
| 2012 | 4 | 5 |
| 2013 | 6 | 3 |
| 2014 | 3 | 3 |
| 2015 | 4 | 6 |
| 2016 | 4 | 0 |
| 2017 | 3 | 3 |
| 2018 | 3 | 4 |
| 2019 | 3 | 5 |
| 2020 | 5 | 14 |
| 2021 | 5 | 5 |
| 2022 | 12 | 13 |
| 2023 | 11 | 8 |
| 2024 | 8 | 5 |
| 2025 | 3 | 6 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tunable circuit for rotary position detection28 Apr 2026US 12,614,996 B2Texas Instruments Incorporated
- Sensorless position detection for electric machine17 Mar 2026US 12,580,505 B2Discovery Energy, LLC
- Rotation angle detection device and rotation angle detection method21 Jan 2025US 12,203,750 B2Alps Alpine Co., Ltd.
- Rotation angle detecting method, recording medium storing rotation angle detecting program, and rotation angle detecting device21 Jan 2025US 12,206,352 B2Alps Alpine Co., Ltd.
- Resistance determination in an electric motor assembly14 Jan 2025US 12,199,547 B2MCi (Mirror Controls International) Netherlands B. V.
- Rotation amount estimation device, rotation amount estimation method, and motor control device13 Nov 2025US 2025/0350227 A1Denso Corporation
- Rotation amount estimation device, rotation amount estimation method, and motor control device6 Nov 2025US 2025/0343497 A1Denso Corporation
- Drive state detection device2 Oct 2025US 2025/0309813 A1Alps Alpine Co., Ltd.
- System and method for speed-torque control of brushed dc motors11 Sep 2025US 2025/0286484 A1
- Ripple detection device and seat device17 Apr 2025US 2025/0123309 A1Alps Alpine Co., Ltd.
Most cited
By later US patents
- Adaptive current control1,062US 5,343,382 ADelco Electronics Corporation · 1994
- Apparatus for DC motor position detection with capacitive ripple current extraction1,036US 7,064,509 B1Visteon Global Technologies, Inc. · 2006
- Intelligent commutation pulse detection system to control electric D.C. motors used with automobile accessories72US 5,497,326 ACherry GmbH · 1996
- Electric positioning motor control system, particularly automatic vehicle antenna extension system53US 4,514,670 ARobert Bosch GmbH · 1985
- Systems and methods for protecting a single phase motor from circulating currents53US 5,675,231 AGeneral Electric Company · 1997