H02M 5/2935
Using reverse phase control, i.e. turn-on of switches in series with load
Official title: {using reverse phase control, i.e. turn-on of switches in series with load at zero crossing of input voltage, turn-off before next zero crossing}
H02M5/2935 (Using reverse phase control, i.e. turn-on of switches in series with load) appears on 37 US grants and 21 published applications in this corpus.
Search patents in H02M- Granted patents
- 37
- Published applications
- 21
- Assignees
- 32
- Inventors
- 55
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 4 |
| 2015 | 0 | 0 |
| 2016 | 3 | 1 |
| 2017 | 2 | 2 |
| 2018 | 2 | 0 |
| 2019 | 2 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 0 |
| 2023 | 2 | 4 |
| 2024 | 3 | 3 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Load control device for high-efficiency loads22 Jul 2025US 12,369,234 B2Lutron Technology Company LLC
- Power conversion device, power conversion method, and program1 Apr 2025US 12,267,022 B2Kabushiki Kaisha Yaskawa Denki
- System with multiple power controllers to reduce harmonics24 Sep 2024US 12,101,035 B2Advanced Energy Industries, Inc.
- Power management apparatus for energy harvesting16 Jul 2024US 12,040,608 B2Trameto Limited
- Load control device for high-efficiency loads9 Jan 2024US 11,870,334 B2Lutron Technology Company LLC
- Load Control Device for High-Efficiency Loads9 Oct 2025US 2025/0318028 A1Lutron Technology Company LLC
- System with multiple power controllers to reduce harmonics22 May 2025US 2025/0167692 A1Advanced Energy Industries, Inc.
- Power management apparatus for energy harvesting3 Oct 2024US 2024/0332963 A1Trameto Limited
- Load Control Device for High-Efficiency Loads29 Aug 2024US 2024/0291376 A1Lutron Technology Company LLC
- System with multiple power controllers to reduce harmonics29 Aug 2024US 2024/0291392 A1Advanced Energy Industries, Inc.
Most cited
By later US patents
- Phase-controlled power modulation system120US 5,239,255 ABayview Technology Group, LLC · 1993
- Reverse phase-controlled dimmer85US 5,038,081 ALutron Electronics Co., Inc. · 1991
- Phase control switching circuit without zero crossing detection78US 5,004,969 ABayview Technology Group, LLC · 1991
- Method of and apparatus for half-cycle-average or R.M.S. load voltage control49US 4,567,425 AGeneral Electric Company · 1986
- Reverse-phase-control power switching circuit and method42US 4,528,494 AGeneral Electric Company · 1985