H02M 3/33546
With automatic control of the output voltage or current
Official title: {with automatic control of the output voltage or current (H02M3/33561 takes precedence)}
H02M3/33546 (With automatic control of the output voltage or current) appears on 755 US grants and 728 published applications in this corpus.
Search patents in H02M- Granted patents
- 755
- Published applications
- 728
- Assignees
- 334
- Inventors
- 1,219
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 2 |
| 2006 | 3 | 4 |
| 2007 | 3 | 0 |
| 2008 | 1 | 4 |
| 2009 | 3 | 2 |
| 2010 | 1 | 8 |
| 2011 | 5 | 5 |
| 2012 | 5 | 16 |
| 2013 | 8 | 20 |
| 2014 | 13 | 56 |
| 2015 | 27 | 105 |
| 2016 | 87 | 89 |
| 2017 | 123 | 102 |
| 2018 | 108 | 76 |
| 2019 | 78 | 52 |
| 2020 | 65 | 49 |
| 2021 | 45 | 38 |
| 2022 | 31 | 24 |
| 2023 | 27 | 29 |
| 2024 | 18 | 19 |
| 2025 | 19 | 15 |
| 2026 | 7 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric power conversion apparatus and electric power conversion system11 Aug 2026US 12,706,541 B2TDK Corporation
- Switch control circuit and power converter comprising the same11 Aug 2026US 12,706,543 B2Chengdu Monolithic Power Systems Co., Ltd.
- Wireless power receiving device21 Jul 2026US 12,689,235 B2Murata Manufacturing Co., Ltd.
- Bi-directional communication scheme between primary and secondary for fly-back AC-DC converters26 May 2026US 12,640,658 B2Infineon Technologies Americas Corp.
- Forward converter and forward power factor corrector12 May 2026US 12,627,235 B2Industrial Technology Research Institute
- Electronic device for providing power to external device, and operating method thereof13 Aug 2026US 2026/0238136 A1Samsung Electronics Co., Ltd.
- Dc-dc converter using parallel point-of-load integrated circuits30 Jul 2026US 2026/0221884 A1Murata Manufacturing Co., Ltd.
- Inverter power generation systems and techniques30 Jul 2026US 2026/0221892 A1Generac Power Systems, Inc.
- Fast response transformer-based power converters for arc welding11 Jun 2026US 2026/0158580 A1Illinois Tool Works Inc.
- Electric power conversion apparatus and electric power conversion system4 Jun 2026US 2026/0155752 A1TDK Corporation
Most cited
By later US patents
- Switching power supply VCO169US 4,797,803 ADCI Technology · 1989
- Energy conversion systems with power control101US 8,796,884 B2SolarBridge Technologies, Inc. · 2014
- Wireless solar power delivery90US 10,128,660 B1X Development LLC · 2018
- Current mode control arrangement with load dependent ramp signal added to sensed current waveform87US 4,672,518 AAmerican Telephone and Telegraph Company, AT&T Bell Labs · 1987
- Source volt-ampere/load volt-ampere differential converter80US 4,734,839 A1988