G05F 1/24
Using bucking or boosting transformers as final control devices
Official title: using bucking or boosting transformers as final control devices
G05F1/24 (Using bucking or boosting transformers as final control devices) appears on 83 US grants and 45 published applications in this corpus.
Search patents in G05F- Granted patents
- 83
- Published applications
- 45
- Assignees
- 59
- Inventors
- 156
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 1 | 3 |
| 2015 | 3 | 2 |
| 2016 | 4 | 0 |
| 2017 | 3 | 4 |
| 2018 | 3 | 8 |
| 2019 | 6 | 5 |
| 2020 | 3 | 7 |
| 2021 | 4 | 3 |
| 2022 | 4 | 2 |
| 2023 | 5 | 3 |
| 2024 | 3 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Photovoltaic converter and photovoltaic generation system28 Jul 2026US 12,695,027 B2Huawei Digital Power Technologies Co., Ltd.
- Voltage booster isolation transformer system and method of operating the same12 Aug 2025US 12,387,872 B2Hubbell Incorporated
- Control apparatus, control method, and non-transitory computer readable medium12 Mar 2024US 11,927,978 B2Mitsubishi Heavy Industries, Ltd.
- Inversely coupled inductor and power supply module13 Feb 2024US 11,901,113 B2Delta Electronics (Shanghai) Co., Ltd.
- Voltage booster isolation transformer system and method of operating the same9 Jan 2024US 11,868,148 B2Hubbell Incorporated
- Voltage booster isolation transformer system and method of operating the same27 Nov 2025US 2025/0364174 A1
- Photovoltaic converter and photovoltaic generation system1 Aug 2024US 2024/0258026 A1Huawei Digital Power Technologies Co., Ltd.
- Voltage booster isolation transformer system and method of operating the same2 May 2024US 2024/0145164 A1Hubbell Incorporated
- Electronic voltage regulator apparatus and method30 Mar 2023US 2023/0095765 A1PTI Transformers Inc.
- Electrical grid transformer system23 Mar 2023US 2023/0087549 A1AMPX Limited
Most cited
By later US patents
- Compound inductors for use in switching regulators129US 5,481,238 AArgus Technologies Ltd. · 1996
- Uninterruptible power supply77US 4,916,329 ASquare D Company · 1990
- Power supply device including induction voltage detection coil for charging portable electronic devices71US 5,122,729 ASharp Kabushiki Kaisha · 1992
- Scheme for rapid adjustment of network impedance67US 5,032,738 A1991
- AC voltage regulator with split primary switching51US 4,716,357 A1987