H02M 1/0054
Transistor switching losses
Official title: {Transistor switching losses (periodically suspending operation of switching converter in low power mode H02M1/0035)}
H02M1/0054 (Transistor switching losses) appears on 3,794 US grants and 4,500 published applications in this corpus.
Search patents in H02M- Granted patents
- 3,794
- Published applications
- 4,500
- Assignees
- 1,150
- Inventors
- 6,471
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 11 | 4 |
| 2002 | 9 | 7 |
| 2003 | 2 | 2 |
| 2004 | 4 | 4 |
| 2005 | 1 | 12 |
| 2006 | 12 | 22 |
| 2007 | 13 | 10 |
| 2008 | 10 | 23 |
| 2009 | 5 | 30 |
| 2010 | 28 | 35 |
| 2011 | 22 | 47 |
| 2012 | 24 | 86 |
| 2013 | 52 | 88 |
| 2014 | 74 | 165 |
| 2015 | 116 | 257 |
| 2016 | 229 | 243 |
| 2017 | 267 | 271 |
| 2018 | 325 | 311 |
| 2019 | 370 | 341 |
| 2020 | 375 | 399 |
| 2021 | 341 | 351 |
| 2022 | 305 | 328 |
| 2023 | 278 | 363 |
| 2024 | 307 | 441 |
| 2025 | 353 | 378 |
| 2026 | 237 | 282 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pulsed transistor driver circuit6 Oct 2026US 12,756,292 B2Texas Instruments Incorporated
- Multiphase LLC resonant converter6 Oct 2026US 12,756,304 B2GS Yuasa International Ltd.
- Half-bridge driver circuit, related integrated circuit, half-bridge circuit and method6 Oct 2026US 12,756,313 B2STMicroelectronics International N. V.
- Switching power supply device with synchronous rectification6 Oct 2026US 12,756,323 B2Mitsumi Electric Co., Ltd.
- Non-isolated zero current and voltage transition technique (ZCVTT)29 Sep 2026US 12,749,966 B2Power Switching LLC
- Synchronous rectification driving method and apparatus, and device and direct-current converter8 Oct 2026US 2026/0312479 A1Vertiv Corporation
- Driving voltage adjusting circuit and power supplying system8 Oct 2026US 2026/0312482 A1Universal Global Technology (Huizhou) Co., Ltd.
- Phase-controlled interleaved boost converter8 Oct 2026US 2026/0312500 A1Vertiv Corporation
- Switch-mode power converters with demagnetization detection and methods thereof8 Oct 2026US 2026/0312501 A1On-Bright Integrations Co., Ltd.
- Circuits and methods for operation of asymmetric half-bridge flyback converter with zvs windings1 Oct 2026US 2026/0302911 A1Navitas Semiconductor Limited
Most cited
By later US patents
- Contactless electrical energy transmission system425US 6,301,128 B1Delta Electronics, Inc. · 2001
- Current synchronous zero voltage switching resonant topology223US 5,615,093 ALinfinity Microelectronics · 1997
- Power converter with low loss switching132US 6,115,273 AIllinois Tool Works Inc. · 2000
- Hybrid topology for multilevel power conversion129US 6,005,788 AWisconsin Alumni Research Foundation · 1999
- Integrated rectifier and boost converter for boosting voltage received from wireless power transmission waves128US 9,800,172 B1Energous Corporation · 2017