H02M 5/451
With automatic control of output voltage or frequency
Official title: with automatic control of output voltage or frequency
H02M5/451 (With automatic control of output voltage or frequency) appears on 30 US grants and 34 published applications in this corpus.
Search patents in H02M- Granted patents
- 30
- Published applications
- 34
- Assignees
- 31
- Inventors
- 96
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 2 |
| 2013 | 1 | 3 |
| 2014 | 2 | 1 |
| 2015 | 2 | 4 |
| 2016 | 2 | 0 |
| 2017 | 1 | 2 |
| 2018 | 2 | 1 |
| 2019 | 0 | 3 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 1 |
| 2023 | 3 | 1 |
| 2024 | 1 | 2 |
| 2025 | 3 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Two-way AC power conversion device14 Oct 2025US 12,445,044 B2Chroma Ate Inc.
- Parallel operation of load commutated inverters11 Mar 2025US 12,249,921 B2GE Infrastructure Technology LLC
- Multi-port subsea high-voltage power modulation and stored energy distribution system28 Jan 2025US 12,212,144 B2Raytheon Company
- Hybrid switch for substation and other applications and methods of operating same27 Aug 2024US 12,072,367 B2Eaton Intelligent Power Limited
- Hybrid switch for substation and other applications and methods of operating same15 Aug 2023US 11,726,130 B2Eaton Intelligent Power Limited
- Resonant power conversion systems and methods2 Jul 2026US 2026/0189151 A1B. G. Negev Technologies and Applications Ltd.
- Soft-start method, device, and system of hdt based on unbypassing its voltage-compensating converter16 Apr 2026US 2026/0106538 A1Xi' An Jiaotong University
- Two-way ac power conversion device13 Feb 2025US 2025/0055383 A1Chroma Ate Inc.
- Power supply system for a plurality of electrolyzers and associated facility and method16 Jan 2025US 2025/0023482 A1GE Energy Power Conversion Technology Limited
- Multi-port subsea high-voltage power modulation and stored energy distribution system24 Oct 2024US 2024/0356336 A1Raytheon Company
Most cited
By later US patents
- Control device for electric power translating device33US 6,437,997 B1Hitachi, Ltd. · 2002
- Control device for electric power translating device31US 6,307,759 B1Hitachi, Ltd. · 2001
- Inverter parallel operation system27US 6,771,522 B2Kabushiki Kaisha Toshiba · 2004
- D-C Bus current monitoring system22US 4,521,840 ABorg-Warner Corporation · 1985
- Variable frequency drive and methods for filter capacitor fault detection22US 8,259,426 B2Rockwell Automation Technologies, Inc. · 2012