H02M 1/44
Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
H02M1/44 (Circuits or arrangements for compensating for electromagnetic interference in converters or inverters) appears on 2,486 US grants and 2,933 published applications in this corpus.
Search patents in H02M- Granted patents
- 2,486
- Published applications
- 2,933
- Assignees
- 1,039
- Inventors
- 5,421
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 11 | 0 |
| 1998 | 15 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 14 | 3 |
| 2002 | 20 | 11 |
| 2003 | 15 | 31 |
| 2004 | 18 | 31 |
| 2005 | 24 | 26 |
| 2006 | 26 | 31 |
| 2007 | 32 | 32 |
| 2008 | 22 | 34 |
| 2009 | 22 | 45 |
| 2010 | 28 | 50 |
| 2011 | 36 | 51 |
| 2012 | 46 | 55 |
| 2013 | 46 | 88 |
| 2014 | 62 | 106 |
| 2015 | 76 | 107 |
| 2016 | 117 | 118 |
| 2017 | 142 | 172 |
| 2018 | 173 | 186 |
| 2019 | 207 | 209 |
| 2020 | 214 | 210 |
| 2021 | 152 | 214 |
| 2022 | 194 | 221 |
| 2023 | 165 | 214 |
| 2024 | 180 | 251 |
| 2025 | 228 | 241 |
| 2026 | 136 | 196 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power supply device including a noise attenuation unit6 Oct 2026US 12,756,293 B2Kabushiki Kaisha Toyota Jidoshokki
- Series power factor correction boost converter and method6 Oct 2026US 12,756,299 B2Rockwell Collins, Inc.
- Power conversion circuit and power supply device6 Oct 2026US 12,756,328 B2Delta Electronics (Shanghai) Co., Ltd.
- Power supply system6 Oct 2026US 12,756,330 B2Delta Electronics (Shanghai) Co., Ltd.
- Systems and methods for improving efficiency in a power management circuit22 Sep 2026US 12,744,448 B2Qorvo US, Inc.
- Power converting apparatus and home appliance including the same8 Oct 2026US 2026/0312477 A1LG Electronics Inc.
- Damping-disconnect circuit for a power converter8 Oct 2026US 2026/0312489 A1Eaton Intelligent Power Limited
- Phase-controlled interleaved boost converter8 Oct 2026US 2026/0312500 A1Vertiv Corporation
- Flexible powering architectures1 Oct 2026US 2026/0302827 A1Alpha Technologies Inc.
- Forced continuous current mode single-inductor multiple-output power conversion circuit and control method thereof1 Oct 2026US 2026/0302925 A1Richtek Technology Corporation
Most cited
By later US patents
- Switching power supply with automatic power factor correction423US 4,683,529 AZytec Corporation · 1987
- Zero voltage switching cells for power converters215US 6,452,814 B1Technical Witts, Inc. · 2002
- Lossless switching DC to DC converter with DC transformer205US 6,400,579 B22002
- Inductorless controlled transition and other light dimmers194US 5,225,765 A1993
- DC-DC converter with reduced electromagnetic interference166US 6,969,978 B2RF Micro Devices, Inc. · 2005