H02M 3/3374
With preregulator
Official title: {with preregulator, e.g. current injected push-pull}
H02M3/3374 (With preregulator) appears on 86 US grants and 62 published applications in this corpus.
Search patents in H02M- Granted patents
- 86
- Published applications
- 62
- Assignees
- 66
- Inventors
- 138
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 3 |
| 2003 | 3 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 3 | 3 |
| 2007 | 4 | 4 |
| 2008 | 0 | 4 |
| 2009 | 5 | 1 |
| 2010 | 1 | 2 |
| 2011 | 3 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 2 |
| 2014 | 1 | 3 |
| 2015 | 4 | 2 |
| 2016 | 4 | 2 |
| 2017 | 1 | 2 |
| 2018 | 2 | 2 |
| 2019 | 2 | 3 |
| 2020 | 3 | 5 |
| 2021 | 3 | 4 |
| 2022 | 4 | 4 |
| 2023 | 3 | 0 |
| 2024 | 2 | 2 |
| 2025 | 0 | 0 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ripple control for a capacitor between a PFC and a DC/DC converter9 Jun 2026US 12,651,958 B2Delta Electronics (Shanghai) Co., Ltd.
- Power converter apparatus17 Feb 2026US 12,556,105 B2Autonetworks Technologies, Ltd.
- Multi-port energy storage battery18 Jun 2024US 12,015,293 B2FranklinWH Technologies Co., Ltd.
- Push-pull converter with reduced EMI and voltage spikes16 Jan 2024US 11,876,454 B2Hamilton Sundstrand Corporation
- Charged particle beam device and power supply device7 Nov 2023US 11,810,752 B2Hitachi High-Tech Corporation
- Ultra-wide voltage range auxiliary power module27 Aug 2026US 2026/0254259 A1Hella Corporate Center USA, Inc.
- Integrated on-chip/in-package transformer driver for can applications30 Apr 2026US 2026/0121547 A1
- Power converter apparatus11 Jul 2024US 2024/0235405 A1Autonetworks Technologies, Ltd.
- Method and system for controlling a switching power supply21 Mar 2024US 2024/0097558 A1Delta Electronics (Shanghai) Co., Ltd.
- Power convertor20 Oct 2022US 2022/0337164 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Resonant forward converter161US 4,788,634 AMassachusetts Institute of Technology · 1988
- Circuit for regulating a parameter by means of a bidirectional current structure93US 5,138,249 AAlcatel Espace · 1992
- High frequency push-pull converter with input power factor correction89US 5,510,974 APhilips Electronics North America Corporation · 1996
- High efficiency power converter83US 5,999,417 AFische, LLC · 1999
- Synchronously switching inverter and regulator79US 5,430,641 ADell USA, L. P. · 1995