H03F 2203/45244
The differential amplifier contains one or more explicit bias circuits
Official title: the differential amplifier contains one or more explicit bias circuits, e.g. to bias the tail current sources, to bias the load transistors
H03F2203/45244 (The differential amplifier contains one or more explicit bias circuits) appears on 167 US grants and 154 published applications in this corpus.
Search patents in H03F- Granted patents
- 167
- Published applications
- 154
- Assignees
- 111
- Inventors
- 265
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 4 | 6 |
| 2007 | 5 | 7 |
| 2008 | 9 | 17 |
| 2009 | 15 | 18 |
| 2010 | 20 | 11 |
| 2011 | 13 | 10 |
| 2012 | 13 | 11 |
| 2013 | 9 | 8 |
| 2014 | 9 | 11 |
| 2015 | 7 | 9 |
| 2016 | 13 | 5 |
| 2017 | 6 | 6 |
| 2018 | 5 | 2 |
| 2019 | 5 | 5 |
| 2020 | 5 | 4 |
| 2021 | 2 | 2 |
| 2022 | 3 | 4 |
| 2023 | 1 | 2 |
| 2024 | 2 | 5 |
| 2025 | 4 | 4 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Push-pull power amplifier30 Sep 2025US 12,431,848 B2MediaTek Singapore Pte. Ltd.
- Bias circuit and power amplifier circuit22 Apr 2025US 12,283,925 B2Telefonaktiebolaget LM Ericsson (publ)
- Dynamically biased amplifier6 Aug 2026US 2026/0230041 A1QUALCOMM Incorporated
- Common mode compensation circuit for differential amplifiers, corresponding device and method12 Feb 2026US 2026/0045922 A1STMicroelectronics International N. V.
- Push-pull power amplifier1 Jan 2026US 2026/0005660 A1MediaTek Singapore Pte. Ltd.
- Biasing circuit with offset correction and high-speed input stage breakdown protection16 Oct 2025US 2025/0323605 A1MACOM Technology Solutions Holdings, Inc.
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Most cited
By later US patents
- Amplifiers and related biasing methods and devices31US 8,350,624 B2Peregrine Semiconductor Corporation · 2013
- Amplifiers and related biasing methods and devices30US 9,509,263 B2Peregrine Semiconductor Corporation · 2016
- Differential amplifier circuit with rail-to-rail capability26US 4,532,479 ASignetics Corporation · 1985
- Combined variable gain amplifier and analog equalizer circuit24US 8,200,179 B1Lattice Semiconductor Corporation · 2012
- Method and system for precise current matching in deep sub-micron technology21US 8,093,952 B2Broadcom Corporation · 2012