H03F 2203/5012
The source follower has a controlled source circuit, the controlling signal being
Official title: the source follower has a controlled source circuit, the controlling signal being derived from the drain circuit of the follower
H03F2203/5012 (The source follower has a controlled source circuit, the controlling signal being) appears on 21 US grants and 19 published applications in this corpus.
Search patents in H03F- Granted patents
- 21
- Published applications
- 19
- Assignees
- 23
- Inventors
- 49
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 2 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 3 | 4 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Amplifier circuit having low parasitic pole effect and buffer circuit thereof25 Nov 2025US 12,483,199 B2Richtek Technology Corporation
- Super source follower with feedback resistor and inductive peaking1 Oct 2024US 12,107,573 B2Avago Technologies International Sales Pte. Limited
- Constant level-shift buffer amplifier circuits6 Feb 2024US 11,894,813 B2Omni Design Technologies Inc.
- High-linearity input buffer29 Mar 2022US 11,290,094 B2MediaTek Singapore Pte. Ltd.
- Semiconductor circuit having a depression-type NMOS transistor provided on a power supply side9 Nov 2021US 11,169,557 B2Kabushiki Kaisha Toshiba
- Source follower circuit with feedback loop and self-biased diode-connected metal-oxide-semiconductor load5 Mar 2026US 2026/0066896 A1Airoha Technology Corp.
- Super source follower with feedback resistor and inductive peaking12 Oct 2023US 2023/0327663 A1Avago Technologies International Sales Pte. Limited
- Amplifier circuit having low parasitic pole effect and buffer circuit thereof22 Jun 2023US 2023/0198473 A1Richtek Technology Corporation
- Ultrasound detection device13 Jan 2022US 2022/0008034 A1KYOCERA Corporation
- Constant level-shift buffer amplifier circuits28 Oct 2021US 2021/0336590 A1Omni Design Technologies Inc.
Most cited
By later US patents
- Circuit output stage arrangement13US 4,573,021 A1986
- FET buffer amplifier11US 5,155,449 AKikusui Electronics Corporation · 1992
- Amplifier system having a constant current regulating unit10US 5,874,858 AMitsumi Electric Co., Ltd. · 1999
- Class AB enhanced transconductance source follower8US 7,151,410 B2Agere Systems Inc. · 2006
- Class AB enhanced transconductance source follower4US 7,368,994 B2Agere Systems Inc. · 2008