G05F 3/20
Using diode- transistor combinations
Official title: using diode- transistor combinations (G05F3/18 takes precedence)
G05F3/20 (Using diode- transistor combinations) appears on 5,675 US grants and 3,550 published applications in this corpus.
Search patents in G05F- Granted patents
- 5,675
- Published applications
- 3,550
- Assignees
- 1,138
- Inventors
- 7,465
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 27 | 0 |
| 1977 | 46 | 0 |
| 1978 | 30 | 0 |
| 1979 | 21 | 0 |
| 1980 | 26 | 0 |
| 1981 | 53 | 0 |
| 1982 | 44 | 0 |
| 1983 | 39 | 0 |
| 1984 | 57 | 0 |
| 1985 | 48 | 0 |
| 1986 | 65 | 0 |
| 1987 | 65 | 0 |
| 1988 | 59 | 0 |
| 1989 | 81 | 0 |
| 1990 | 68 | 0 |
| 1991 | 79 | 0 |
| 1992 | 87 | 0 |
| 1993 | 80 | 0 |
| 1994 | 95 | 0 |
| 1995 | 99 | 0 |
| 1996 | 128 | 0 |
| 1997 | 161 | 0 |
| 1998 | 179 | 0 |
| 1999 | 199 | 0 |
| 2000 | 182 | 0 |
| 2001 | 178 | 49 |
| 2002 | 171 | 136 |
| 2003 | 154 | 143 |
| 2004 | 153 | 144 |
| 2005 | 130 | 152 |
| 2006 | 142 | 140 |
| 2007 | 132 | 143 |
| 2008 | 103 | 126 |
| 2009 | 126 | 141 |
| 2010 | 115 | 119 |
| 2011 | 105 | 109 |
| 2012 | 86 | 97 |
| 2013 | 110 | 114 |
| 2014 | 110 | 118 |
| 2015 | 113 | 134 |
| 2016 | 146 | 149 |
| 2017 | 173 | 140 |
| 2018 | 173 | 153 |
| 2019 | 193 | 179 |
| 2020 | 228 | 185 |
| 2021 | 150 | 171 |
| 2022 | 160 | 134 |
| 2023 | 145 | 172 |
| 2024 | 131 | 153 |
| 2025 | 132 | 147 |
| 2026 | 98 | 102 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G05F 3/26Current mirrors2,514
- G05F 3/24Wherein the transistors are of the field-effect type only1,508
- G05F 3/30Regulators using the difference between the base-emitter voltages of two bipolar transistors1,405
- G05F 3/205Substrate bias-voltage generators607
- G05F 3/22Wherein the transistors are of the bipolar type only450
Recent patents
- Fast settling voltage regulator circuitry with pole frequency tracking6 Oct 2026US 12,754,580 B2Advanced Micro Devices, Inc.
- Low-dropout regulator and chip6 Oct 2026US 12,754,581 B2Huawei Technologies Co., Ltd.
- Digitally assisted low noise sub IV chopper less bandgap reference circuit6 Oct 2026US 12,754,582 B2Indian Institute of Technology Delhi
- Bandgap reference circuit with leakage current compensation6 Oct 2026US 12,754,583 B2Richtek Technology Corporation
- Voltage reference circuit, integrated circuit, and method for generating a reference voltage29 Sep 2026US 12,748,444 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Device and Method for Generating a Temperature-Independent Reference Voltage1 Oct 2026US 2026/0299628 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Self-Biased Voltage Reference Generators24 Sep 2026US 2026/0288187 A1Apple Inc.
- Semiconductor integrated circuit24 Sep 2026US 2026/0288188 A1Kabushiki Kaisha Toshiba
- Voltage reference circuit24 Sep 2026US 2026/0288189 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Semiconductor integrated circuit24 Sep 2026US 2026/0288190 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Power consumption reduction in medical devices by employing different supply voltages278US 6,091,987 AMedtronic, Inc. · 2000
- Constant current driver with auto-clamped pre-charge function225US 6,323,631 B1Sunplus Technology Co., Ltd. · 2001
- Current-efficient low-drop-out voltage regulator with improved load regulation and frequency response224US 6,188,211 B1Texas Instruments Incorporated · 2001
- Current mirror circuit and reference voltage generating and light emitting element driving circuits using the same213US 5,880,582 ASumitomo Electric Industries, Ltd. · 1999
- Output circuit having transistor monitor for matching output impedance to load impedance204US 4,719,369 AHitachi, Ltd. · 1988