H02M 3/137
With automatic control of output voltage or current
Official title: with automatic control of output voltage or current, e.g. switching regulators
H02M3/137 (With automatic control of output voltage or current) appears on 101 US grants and 53 published applications in this corpus.
Search patents in H02M- Granted patents
- 101
- Published applications
- 53
- Assignees
- 88
- Inventors
- 220
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 10 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 4 |
| 2015 | 2 | 2 |
| 2016 | 3 | 1 |
| 2017 | 2 | 5 |
| 2018 | 4 | 10 |
| 2019 | 13 | 8 |
| 2020 | 3 | 7 |
| 2021 | 6 | 0 |
| 2022 | 3 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Power converter efficiency boost at low loads, keeping maximum constant switching frequency operation range31 Mar 2026US 12,592,638 B2Infineon Technologies AG
- Multiple port bidirectional power conversion circuit25 Nov 2025US 12,483,136 B2University of North Texas
- Modular AC/DC power conversion module for power sources and loads and method of driving the same18 Mar 2025US 12,255,532 B2Chroma Ate Inc.
- Method for determining a characteristic curve of a photovoltaic (PV) string, DC/DC converter, and photovoltaic system suitable for carrying out the method30 Jan 2024US 11,888,439 B2SMA Solar Technology AG
- Hybrid single mode buck boost converter2 Jul 2026US 2026/0189129 A1Korea University Research and Business Foundation
- Voltage stabilization with on-device metal capacitor30 Apr 2026US 2026/0121530 A1Arm Limited
- Control Circuit, Power Supply Circuit, and Electronic Apparatus26 Feb 2026US 2026/0058552 A1Rohm Co., Ltd.
- Provision of two mutually different electrical dc voltages by means of an energy converter15 May 2025US 2025/0158508 A1Inventronics, Inc.
- Power converter efficiency boost at low loads, keeping maximum constant switching frequency operation range27 Feb 2025US 2025/0070663 A1Infineon Technologies AG
Most cited
By later US patents
- Power conversion using zero current soft switching224US 5,287,261 AThe Texas A&M University System · 1994
- Sequential discharge and its use for rectification85US 5,905,371 AD.C. Transformation, Inc. · 1999
- Integrated converter high power CD ignition67US 5,207,208 ACombustion Electromagnetics, Inc. · 1993
- Compact and efficient transformerless power conversion system48US 5,270,913 AD.C. Transformation, Inc. · 1993
- Compact and efficient transformerless power conversion system44US 5,561,597 AD.C. Transformation, Inc. · 1996