H03F 1/38
Positive-feedback circuit arrangements without negative feedback
H03F1/38 (Positive-feedback circuit arrangements without negative feedback) appears on 71 US grants and 61 published applications in this corpus.
Search patents in H03F- Granted patents
- 71
- Published applications
- 61
- Assignees
- 55
- Inventors
- 109
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 3 |
| 2007 | 2 | 7 |
| 2008 | 6 | 3 |
| 2009 | 3 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 2 |
| 2013 | 4 | 2 |
| 2014 | 1 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 3 |
| 2018 | 1 | 5 |
| 2019 | 6 | 5 |
| 2020 | 5 | 5 |
| 2021 | 7 | 4 |
| 2022 | 6 | 4 |
| 2023 | 3 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Applying a positive feedback voltage to an electromechanical sensor utilizing a voltage-to-voltage converter to facilitate a reduction of charge flow in such sensor representing spring softening9 Jun 2026US 12,650,441 B2InvenSense, Inc.
- Programmable gain amplifier and a delta sigma analog-to-digital converter containing the PGA14 Jan 2025US 12,199,630 B2Texas Instruments Incorporated
- Baseline wander compensator and method25 Jun 2024US 12,021,543 B2MACOM Technology Solutions Holdings, Inc.
- Method and system for high speed decision-feedback equalization (DFE)9 Jan 2024US 11,870,614 B2Samsung Electronics Co., Ltd.
- Applying a positive feedback voltage to an electromechanical sensor utilizing a voltage-to-voltage converter to facilitate a reduction of charge flow in such sensor representing spring softening5 Dec 2023US 11,835,538 B2InvenSense, Inc.
- Programmable gain amplifier and a delta sigma analog-to-digital converter containing the pga27 Mar 2025US 2025/0105855 A1Texas Instruments Incorporated
- Amplification circuit, multi-stage amplifier and amplifier16 Jan 2025US 2025/0023522 A1Samsung Electronics Co., Ltd.
- Applying a positive feedback voltage to an electromechanical sensor utilizing a voltage-to-voltage converter to facilitate a reduction of charge flow in such sensor representing spring softening22 Feb 2024US 2024/0061006 A1InvenSense, Inc.
- Baseline wander compensator and method14 Dec 2023US 2023/0403023 A1MACOM Technology Solution Holdings, Inc.
- Programmable gain amplifier and a delta sigma analog-to-digital converter containing the pga13 Apr 2023US 2023/0110204 A1Texas Instruments Incorporated
Most cited
By later US patents
- Switched capacitor amplifier with higher gain and improved closed-loop gain accuracy131US 7,605,650 B2Micron Technology, Inc. · 2009
- Feedforward amplifiers19US 4,412,185 AThe Marconi Company Limited · 1983
- Control circuit driven by a differential input voltage and method for controlling same18US 6,184,750 B2Gain Technology Corporation · 2001
- Very high gain positive feedback CMOS transconductance amplifier13US 4,897,611 AMicro Linear Corporation · 1990
- High gain differential amplifier with positive feedback12US 4,232,270 ARockwell International Corporation · 1980