H02M 7/4826
Operating from a resonant dc source, i.e. the dc input voltage varies
Official title: {operating from a resonant DC source, i.e. the DC input voltage varies periodically, e.g. resonant DC-link inverters}
H02M7/4826 (Operating from a resonant dc source, i.e. the dc input voltage varies) appears on 155 US grants and 124 published applications in this corpus.
Search patents in H02M- Granted patents
- 155
- Published applications
- 124
- Assignees
- 116
- Inventors
- 319
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 1 |
| 2004 | 0 | 7 |
| 2005 | 3 | 0 |
| 2006 | 4 | 4 |
| 2007 | 1 | 0 |
| 2008 | 2 | 1 |
| 2009 | 0 | 2 |
| 2010 | 3 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 7 |
| 2015 | 6 | 10 |
| 2016 | 8 | 2 |
| 2017 | 8 | 6 |
| 2018 | 5 | 14 |
| 2019 | 15 | 17 |
| 2020 | 16 | 15 |
| 2021 | 13 | 6 |
| 2022 | 4 | 5 |
| 2023 | 5 | 9 |
| 2024 | 7 | 5 |
| 2025 | 5 | 2 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Switching converter with pseudo-resonant DC link1,396US 4,965,709 AGeneral Electric Company · 1990
- Electrical power inverter197US 5,381,327 AAstec International Limited · 1995
- Static power conversion method and apparatus having essentially zero switching losses and clamped voltage levels125US 4,864,483 AWisconsin Alumni Research Foundation · 1989
- Static power conversion and apparatus having essentially zero switching losses100US 4,730,242 AWisconsin Alumni Research Foundation · 1988
- Unipolar series resonant converter100US 5,412,557 AElectronic Power Conditioning, Inc. · 1995