H02M 3/33592
Having a synchronous rectifier circuit or a synchronous freewheeling circuit at the
Official title: {having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer}
H02M3/33592 (Having a synchronous rectifier circuit or a synchronous freewheeling circuit at the) appears on 2,338 US grants and 2,467 published applications in this corpus.
Search patents in H02M- Granted patents
- 2,338
- Published applications
- 2,467
- Assignees
- 751
- Inventors
- 3,553
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 18 | 0 |
| 2000 | 33 | 0 |
| 2001 | 39 | 15 |
| 2002 | 47 | 36 |
| 2003 | 36 | 32 |
| 2004 | 41 | 36 |
| 2005 | 29 | 50 |
| 2006 | 44 | 61 |
| 2007 | 44 | 41 |
| 2008 | 35 | 60 |
| 2009 | 42 | 60 |
| 2010 | 45 | 44 |
| 2011 | 55 | 68 |
| 2012 | 41 | 53 |
| 2013 | 41 | 55 |
| 2014 | 42 | 84 |
| 2015 | 72 | 111 |
| 2016 | 106 | 114 |
| 2017 | 116 | 113 |
| 2018 | 184 | 170 |
| 2019 | 171 | 160 |
| 2020 | 193 | 172 |
| 2021 | 141 | 178 |
| 2022 | 143 | 178 |
| 2023 | 179 | 160 |
| 2024 | 129 | 155 |
| 2025 | 137 | 142 |
| 2026 | 85 | 119 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Power supply system6 Oct 2026US 12,756,330 B2Delta Electronics (Shanghai) Co., Ltd.
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- Isolated power supply, control circuit and method thereof29 Sep 2026US 12,749,986 B2Shanghai Bright Power Semiconductor Co., Ltd.
- Synchronous rectification driving method and apparatus, and device and direct-current converter8 Oct 2026US 2026/0312479 A1Vertiv Corporation
- Flexible powering architectures1 Oct 2026US 2026/0302827 A1Alpha Technologies Inc.
- Dynamic Boost with Constant Current Mode1 Oct 2026US 2026/0302833 A1Avago Technologies International Sales Pte. Limited
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Most cited
By later US patents
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- Power semiconductor devices and methods of manufacture273US 7,345,342 B2Fairchild Semiconductor Corporation · 2008
- Rectifying-and-modulating circuit and wireless power receiver incorporating the same270US 9,225,196 B2Richtek Technology Corporation · 2015
- Self-driven synchronous rectification scheme263US 6,038,148 AEricsson Inc. · 2000