H03F 3/30
Single-ended push-pull [sepp] amplifiers
Official title: Single-ended push-pull {[SEPP]} amplifiers {(single-ended sense amplifiers G11C7/067)}; Phase-splitters therefor
H03F3/30 (Single-ended push-pull [sepp] amplifiers) appears on 2,194 US grants and 1,264 published applications in this corpus.
Search patents in H03F- Granted patents
- 2,194
- Published applications
- 1,264
- Assignees
- 631
- Inventors
- 2,984
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 32 | 0 |
| 1977 | 43 | 0 |
| 1978 | 32 | 0 |
| 1979 | 14 | 0 |
| 1980 | 17 | 0 |
| 1981 | 26 | 0 |
| 1982 | 40 | 0 |
| 1983 | 25 | 0 |
| 1984 | 37 | 0 |
| 1985 | 34 | 0 |
| 1986 | 25 | 0 |
| 1987 | 24 | 0 |
| 1988 | 30 | 0 |
| 1989 | 32 | 0 |
| 1990 | 26 | 0 |
| 1991 | 25 | 0 |
| 1992 | 44 | 0 |
| 1993 | 28 | 0 |
| 1994 | 40 | 0 |
| 1995 | 34 | 0 |
| 1996 | 43 | 0 |
| 1997 | 47 | 0 |
| 1998 | 55 | 0 |
| 1999 | 59 | 0 |
| 2000 | 60 | 0 |
| 2001 | 56 | 21 |
| 2002 | 73 | 44 |
| 2003 | 59 | 44 |
| 2004 | 54 | 39 |
| 2005 | 34 | 57 |
| 2006 | 44 | 52 |
| 2007 | 42 | 55 |
| 2008 | 39 | 56 |
| 2009 | 57 | 74 |
| 2010 | 92 | 55 |
| 2011 | 47 | 50 |
| 2012 | 61 | 44 |
| 2013 | 47 | 52 |
| 2014 | 65 | 42 |
| 2015 | 40 | 49 |
| 2016 | 54 | 42 |
| 2017 | 53 | 60 |
| 2018 | 63 | 51 |
| 2019 | 51 | 41 |
| 2020 | 54 | 60 |
| 2021 | 55 | 53 |
| 2022 | 44 | 56 |
| 2023 | 41 | 55 |
| 2024 | 35 | 50 |
| 2025 | 43 | 34 |
| 2026 | 19 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03F 3/3001With field-effect transistors1,372
- H03F 3/3069The emitters of complementary power transistors being connected to the output384
- H03F 3/3066The collectors of complementary power transistors being connected to the output224
- H03F 3/3083The power transistors being of the same type140
- H03F 3/3081Duplicated single-ended push-pull arrangements, i.e. bridge circuits126
Recent patents
- Fully integrated CMOS multiple MOSFET-stacked double push-pull RF power amplifier29 Sep 2026US 12,750,012 B2Shanghai WUQI Microelectronics Co., Ltd.
- High voltage amplifier15 Sep 2026US 12,738,896 B2Hitachi High-Tech Corporation
- Amplifier circuit for microphone, microphone circuit and electronic device1 Sep 2026US 12,726,164 B2AAC Technologies PTE.Ltd.
- Control circuit and voltage output circuit25 Aug 2026US 12,719,427 B2Fuji Electric Co., Ltd.
- Low second harmonic single ended class AB amplifier4 Aug 2026US 12,700,840 B2Texas Instruments Incorporated
- Method and devices to increase power added efficiency in power amplifiers20 Aug 2026US 2026/0246427 A1pSemi Corporation
- Differential amplifier and data driving device6 Aug 2026US 2026/0230050 A1Lx Semicon Co., Ltd.
- Low-noise amplifier30 Jul 2026US 2026/0221945 A1
- Systems and methods for analog front-end (afe) amplification with a complementary bias-stage circuit30 Jul 2026US 2026/0221951 A1Samsung Electronics Co., Ltd.
- System and methods for efficient common mode suppression for transmission systems16 Jul 2026US 2026/0205068 A1Avago Technologies International Sales Pte. Limited
Most cited
By later US patents
- CMOS Operational amplifier225US 4,554,515 AAT&T Laboratories · 1985
- Audio amplifier power and temperature controller having network detecting and associated methods173US 6,653,899 B2Niles Audio Corporation · 2003
- Circuits for linear conversion between currents and voltages116US 5,165,054 ASynaptics Incorporated · 1992
- Circuits for linear conversion between voltages and currents114US 5,126,685 ASynaptics Incorporated · 1992
- Linear, continuous-time, two quadrant multiplier112US 5,107,149 ASynaptics Incorporated · 1992