H03F 3/3086
Two power transistors being controlled by the input signal
Official title: {two power transistors being controlled by the input signal}
H03F3/3086 (Two power transistors being controlled by the input signal) appears on 124 US grants and 33 published applications in this corpus.
Search patents in H03F- Granted patents
- 124
- Published applications
- 33
- Assignees
- 59
- Inventors
- 165
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 13 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 3 |
| 2002 | 3 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 3 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 3 | 1 |
| 2011 | 1 | 2 |
| 2012 | 2 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 2 | 0 |
| 2020 | 1 | 3 |
| 2021 | 1 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 3 |
| 2024 | 2 | 0 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03F 3/3088With asymmetric control, i.e. one control branch containing a supplementary phase inverting50
- H03F 3/3093Comprising a differential amplifier as phase-splitting element19
- H03F 3/3091Comprising two complementary transistors for phase-splitting14
- H03F 3/3096Using a single transistor with output on emitter and collector as phase14
- H03F 3/3098Using a transformer as phase splitter11
- H03F 3/3089Comprising field-effect transistors in the control circuit5
- H03F 3/3094Phase splitters therefor5
Recent patents
- Push-pull power amplifier30 Sep 2025US 12,431,848 B2MediaTek Singapore Pte. Ltd.
- Power amplifying circuit24 Jun 2025US 12,341,479 B2Murata Manufacturing Co., Ltd.
- RFFE LNA topology supporting both noncontiguous intraband carrier aggregation and interband carrier aggregation31 Dec 2024US 12,184,248 B2pSemi Corporation
- Charge to voltage converter31 Dec 2024US 12,184,301 B1Acacia Communications, Inc.
- RFFE LNA topology supporting both noncontiguous intraband carrier aggregation and interband carrier aggregation17 May 2022US 11,336,243 B2pSemi Corporation
- Transformation module for an rf amplifier arrangement, rf amplifier arrangement comprising such a transformation module, and arrangement for accelerating particles comprising at least one such rf amplifier arrangement2 Jul 2026US 2026/0189198 A1Trumpf HüTtinger GmbH + Co. KG
- Push-pull power amplifier1 Jan 2026US 2026/0005660 A1MediaTek Singapore Pte. Ltd.
- Rffe lna topology supporting both noncontiguous intraband carrier aggregation and interband carrier aggregation6 Mar 2025US 2025/0080070 A1pSemi Corporation
- Push-pull power amplifier7 Dec 2023US 2023/0396221 A1MediaTek Singapore Pte. Ltd.
- Power amplifier systems with frequency response compensation26 Oct 2023US 2023/0344393 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Solid-state RF power amplifier for radio transmitters74US 8,031,003 B22011
- Audio power amplifier with automatic bias control24US 4,077,013 ANorlin Music, Inc. · 1978
- Amplifier with over-current protection21US 3,967,207 ARCA Corporation · 1976
- Folded cascode operational amplifier with gain enhancing base current compensation17US 5,323,121 AAnalog Devices, Inc. · 1994
- Circuit for converting single-ended input signals to a pair of differential output signals16US 4,292,597 ASony Corporation · 1981