H02P 27/026
Whereby the speed is regulated by measuring the motor speed and comparing
Official title: {whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value}
H02P27/026 (Whereby the speed is regulated by measuring the motor speed and comparing) appears on 39 US grants and 7 published applications in this corpus.
Search patents in H02P- Granted patents
- 39
- Published applications
- 7
- Assignees
- 30
- Inventors
- 66
- Latest grant
- 22 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Fan control circuit with temperature compensation and method of controlling fan22 Aug 2023US 11,736,052 B2Enermax Technology Corporation
- Motor control system with integrated solid-state contactor and relays and method of operation thereof5 Oct 2021US 11,139,649 B2Eaton Intelligent Power Limited
- Systems and methods for fan typing and anomaly detection15 Dec 2020US 10,866,006 B2Dell Products L. P.
- Induction motor speed estimation30 Aug 2016US 9,431,949 B2General Electric Company
- Method of controlling the speed of an electric motor17 Aug 2010US 7,777,442 B2Whirlpool Corporation
- Method and device for synchronous motor control28 Dec 2023US 2023/0421080 A1Sami Shamoon College of Engineering (R.A)
- Fan control circuit with temperature compensation and method of controlling fan7 Oct 2021US 2021/0315129 A1Enermax Technology Corporation
- Systems and methods for fan typing and anomaly detection26 Dec 2019US 2019/0390864 A1Dell Products L. P.
- Motor control system with integrated solid-state contactor and relays and method of operation thereof27 Jun 2019US 2019/0199085 A1Eaton Corporation
- Induction motor speed estimation29 Oct 2015US 2015/0311849 A1General Electric Company
Most cited
By later US patents
- Blower motor control for an air conditioner31US 4,879,503 AMitsubishi Denki Kabushiki Kaihsa · 1989
- Induction motor drive apparatus30US 4,322,671 AFujitsu Fanuc Limited · 1982
- Method and apparatus for determining motor speed using zero crossing times30US 5,548,197 AAllen-Bradley Company, Inc. · 1996
- Controller with two modes of braking induction motors28US 4,712,054 AEast Moline Metal Products Company · 1987
- Polyphase induction motor system and operating method26US 4,749,933 A1988