H03G 3/004
Control by varying the supply voltage
Official title: {Control by varying the supply voltage}
H03G3/004 (Control by varying the supply voltage) appears on 326 US grants and 292 published applications in this corpus.
Search patents in H03G- Granted patents
- 326
- Published applications
- 292
- Assignees
- 157
- Inventors
- 547
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 7 |
| 2002 | 9 | 4 |
| 2003 | 8 | 10 |
| 2004 | 16 | 17 |
| 2005 | 7 | 19 |
| 2006 | 15 | 20 |
| 2007 | 16 | 26 |
| 2008 | 17 | 15 |
| 2009 | 14 | 14 |
| 2010 | 15 | 15 |
| 2011 | 18 | 12 |
| 2012 | 28 | 15 |
| 2013 | 15 | 29 |
| 2014 | 20 | 16 |
| 2015 | 26 | 14 |
| 2016 | 14 | 6 |
| 2017 | 14 | 11 |
| 2018 | 8 | 6 |
| 2019 | 9 | 7 |
| 2020 | 9 | 7 |
| 2021 | 3 | 6 |
| 2022 | 8 | 5 |
| 2023 | 2 | 5 |
| 2024 | 3 | 1 |
| 2025 | 1 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radio frequency power amplifier, radio frequency front-end module, and communication terminal6 Jan 2026US 12,519,428 B2Vanchip (Tianjin) Technology Co., Ltd.
- Analog implementation of variable-gain differentiators based on voltage-controlled amplifiers14 Jan 2025US 12,199,580 B2King Fahd University of Petroleum and Minerals
- Variable gain power amplifiers15 Oct 2024US 12,119,789 B2Texas Instruments Incorporated
- Valve amplifiers1 Oct 2024US 12,107,560 B2Blackstar Amplification Ltd.
- Efficient use of energy in a switching power converter20 Feb 2024US 11,909,317 B2Cirrus Logic, Inc.
- Buzzer device, buzzer driving system and method thereof2 Apr 2026US 2026/0095136 A1Nuvoton Technology Corporation
- Continuous time linear equalizer employing current-reuse and current-stealing architecture26 Feb 2026US 2026/0058849 A1QUALCOMM Incorporated
- Audio amplification circuit, board, and electronic device27 Mar 2025US 2025/0105801 A1Honor Device Co., Ltd.
- Variable gain differentiator for analog signal differentiation20 Mar 2025US 2025/0096760 A1King Fahd University of Petroleum and Minerals
- Radio-frequency Amplifier with Supply and Load Modulation13 Feb 2025US 2025/0055425 A1Apple Inc.
Most cited
By later US patents
- Current modulator with dynamic amplifier impedance compensation183US 6,566,944 B1Ericsson Inc. · 2003
- RF transmitter with extended efficient power control range171US 6,681,101 B1Skyworks Solutions, Inc. · 2004
- Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control151US 6,285,251 B1Ericsson Inc. · 2001
- Power amplifying circuit with supply adjust to control adjacent and alternate channel power141US 6,166,598 AMotorola, Inc. · 2000
- Switched gain amplifier circuit131US 6,724,252 B2RF Micro Devices, Inc. · 2004