H02P 6/157
Wherein the commutation is function of electro-magnetic force [emf]
Official title: {wherein the commutation is function of electro-magnetic force [EMF]}
H02P6/157 (Wherein the commutation is function of electro-magnetic force [emf]) appears on 110 US grants and 122 published applications in this corpus.
Search patents in H02P- Granted patents
- 110
- Published applications
- 122
- Assignees
- 84
- Inventors
- 223
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 3 |
| 2011 | 1 | 0 |
| 2012 | 3 | 5 |
| 2013 | 3 | 3 |
| 2014 | 4 | 10 |
| 2015 | 7 | 3 |
| 2016 | 4 | 5 |
| 2017 | 10 | 13 |
| 2018 | 10 | 14 |
| 2019 | 14 | 10 |
| 2020 | 8 | 13 |
| 2021 | 12 | 9 |
| 2022 | 7 | 8 |
| 2023 | 9 | 5 |
| 2024 | 6 | 9 |
| 2025 | 6 | 7 |
| 2026 | 4 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Impact tools and control modes25 Aug 2026US 12,719,399 B2Black & Decker Inc.
- Sensorless trapezoidal motor control14 Jul 2026US 12,683,527 B2Texas Instruments Incorporated
- Power tool19 May 2026US 12,633,849 B2Nanjing Chervon Industry Co., Ltd.
- Sensorless motor circuit providing accurate back electromotive force zero-crossing point detection and operation method thereof31 Mar 2026US 12,592,656 B2Artery Technology Co., Ltd.
- Motor system of accurate back-electromotive force detection and operation method thereof11 Nov 2025US 12,470,158 B2Artery Technology Co., Ltd.
- Motor drive control device, motor unit, and motor drive control method10 Sep 2026US 2026/0269751 A1MINEBEA MITSUMI Inc.
- Driving circuit for brushless electric motor, control method and apparatus therefor, and device30 Apr 2026US 2026/0121564 A1Xuxin Technology (Shenzhen) Group Co., Ltd
- Power tool11 Dec 2025US 2025/0379539 A1Nanjing Chervon Industry Co., Ltd.
- Sensorless block commutation25 Sep 2025US 2025/0300579 A1Hilti Aktiengesellschaft
- Method for operating a circuit arrangement for BEMF zero crossing identification25 Sep 2025US 2025/0300580 A1Hilti Aktiengesellschaft
Most cited
By later US patents
- Conduction angle control of brushless motor32US 8,212,504 B2Panasonic Corporation · 2012
- Electric power tool8US 10,033,323 B2Hitachi Koki Co., Ltd. · 2018
- Electric power tool8US 9,793,847 B2Hitachi Koki Co., Ltd. · 2017
- Sensorless brushless direct current (BLDC) motor position control8US 9,887,653 B2Allegro MicroSystems, LLC · 2018
- Low-speed sensorless brushless motor control in a power tool7US 11,171,586 B2Black & Decker Inc. · 2021