H02M 3/3376
With automatic control of output voltage or current
Official title: {with automatic control of output voltage or current}
H02M3/3376 (With automatic control of output voltage or current) appears on 1,247 US grants and 974 published applications in this corpus.
Search patents in H02M- Granted patents
- 1,247
- Published applications
- 974
- Assignees
- 561
- Inventors
- 2,132
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 19 | 0 |
| 1978 | 9 | 0 |
| 1979 | 13 | 0 |
| 1980 | 11 | 0 |
| 1981 | 14 | 0 |
| 1982 | 15 | 0 |
| 1983 | 4 | 0 |
| 1984 | 15 | 0 |
| 1985 | 14 | 0 |
| 1986 | 13 | 0 |
| 1987 | 26 | 0 |
| 1988 | 13 | 0 |
| 1989 | 22 | 0 |
| 1990 | 13 | 0 |
| 1991 | 10 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 14 | 0 |
| 1995 | 10 | 0 |
| 1996 | 13 | 0 |
| 1997 | 8 | 0 |
| 1998 | 4 | 0 |
| 1999 | 11 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 0 |
| 2002 | 15 | 16 |
| 2003 | 11 | 15 |
| 2004 | 22 | 28 |
| 2005 | 20 | 24 |
| 2006 | 21 | 31 |
| 2007 | 20 | 20 |
| 2008 | 19 | 27 |
| 2009 | 16 | 33 |
| 2010 | 29 | 39 |
| 2011 | 27 | 43 |
| 2012 | 33 | 57 |
| 2013 | 36 | 52 |
| 2014 | 49 | 75 |
| 2015 | 63 | 77 |
| 2016 | 68 | 57 |
| 2017 | 79 | 67 |
| 2018 | 93 | 73 |
| 2019 | 78 | 49 |
| 2020 | 78 | 73 |
| 2021 | 57 | 40 |
| 2022 | 36 | 20 |
| 2023 | 23 | 11 |
| 2024 | 18 | 15 |
| 2025 | 6 | 12 |
| 2026 | 12 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control circuit for a resonant circuit and the method thereof8 Sep 2026US 12,732,113 B2Chengdu Monolithic Power Systems Co., Ltd.
- Wireless power receiving device21 Jul 2026US 12,689,235 B2Murata Manufacturing Co., Ltd.
- Switching power supply apparatus and electric power supply system16 Jun 2026US 12,658,813 B2TDK Corporation
- Cascaded DC modular solid-state transformer19 May 2026US 12,633,816 B1EPC Power Corporation
- Control method for resonant conversion circuit12 May 2026US 12,627,223 B2Delta Electronics (Shanghai) Co., Ltd.
- Soft Switching Two Transistor Forward With Dual Clamp For High Voltage Bus And Large Input Voltage Range13 Aug 2026US 2026/0238134 A1Rompower Technology Holdings, LLC
- Resonant converter, method for switching bidirection operation thereof and distributed power supply system13 Aug 2026US 2026/0238135 A1Delta Electronics (Shanghai) Co., Ltd.
- Power conversion device30 Jul 2026US 2026/0221862 A1Panasonic Intellectual Property Management Co., Ltd.
- Resonant converter circuit30 Jul 2026US 2026/0221871 A1Renesas Design (UK) Limited
- Dc-dc converter using parallel point-of-load integrated circuits30 Jul 2026US 2026/0221884 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Compact electrical power supply for signal processing applications323US 4,533,986 AGeneral Electric Company · 1985
- Systems and methods for providing positioning freedom, and support of different voltages, protocols, and power levels in a wireless power system255US 9,178,369 B2Mojo Mobility, Inc. · 2015
- Parallel resonant converter with zero voltage switching231US 4,992,919 A1991
- Integrated circuit for controlling power converter by frequency modulation and pulse width modulation230US 4,685,040 AGeneral Electric Company · 1987
- Current synchronous zero voltage switching resonant topology223US 5,615,093 ALinfinity Microelectronics · 1997