G05F 3/08
Wherein the variable is dc
Official title: wherein the variable is DC
G05F3/08 (Wherein the variable is dc) appears on 6,253 US grants and 4,074 published applications in this corpus.
Search patents in G05F- Granted patents
- 6,253
- Published applications
- 4,074
- Assignees
- 1,319
- Inventors
- 8,410
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 36 | 0 |
| 1977 | 50 | 0 |
| 1978 | 34 | 0 |
| 1979 | 22 | 0 |
| 1980 | 27 | 0 |
| 1981 | 57 | 0 |
| 1982 | 49 | 0 |
| 1983 | 45 | 0 |
| 1984 | 58 | 0 |
| 1985 | 51 | 0 |
| 1986 | 68 | 0 |
| 1987 | 71 | 0 |
| 1988 | 65 | 0 |
| 1989 | 85 | 0 |
| 1990 | 71 | 0 |
| 1991 | 81 | 0 |
| 1992 | 92 | 0 |
| 1993 | 81 | 0 |
| 1994 | 96 | 0 |
| 1995 | 102 | 0 |
| 1996 | 131 | 0 |
| 1997 | 166 | 0 |
| 1998 | 181 | 0 |
| 1999 | 203 | 0 |
| 2000 | 186 | 0 |
| 2001 | 183 | 49 |
| 2002 | 174 | 138 |
| 2003 | 156 | 148 |
| 2004 | 157 | 145 |
| 2005 | 132 | 153 |
| 2006 | 143 | 145 |
| 2007 | 135 | 147 |
| 2008 | 108 | 136 |
| 2009 | 134 | 152 |
| 2010 | 126 | 144 |
| 2011 | 119 | 123 |
| 2012 | 95 | 111 |
| 2013 | 133 | 172 |
| 2014 | 134 | 170 |
| 2015 | 166 | 180 |
| 2016 | 185 | 195 |
| 2017 | 235 | 185 |
| 2018 | 216 | 179 |
| 2019 | 233 | 220 |
| 2020 | 271 | 225 |
| 2021 | 178 | 197 |
| 2022 | 186 | 153 |
| 2023 | 161 | 179 |
| 2024 | 142 | 166 |
| 2025 | 143 | 154 |
| 2026 | 100 | 108 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Low voltage solution for zener voltage reference1 Oct 2026US 2026/0299629 A1STMicroelectronics International N. V.
- 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
Most cited
By later US patents
- Power consumption reduction in medical devices by employing different supply voltages278US 6,091,987 AMedtronic, Inc. · 2000
- Self-contained rechargeable battery power source with voltage reducer225US 4,987,360 ABill's Ice Cream, Inc. · 1991
- 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