Differential amplifier
US-2020328719-A1 · Oct 15, 2020 · US
Controlling the common source circuit of the differential amplifier
Controlling the common source circuit of the differential amplifier · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F3/4565 |
| Official title | {Controlling the common source circuit of the differential amplifier} |
| Display label | Controlling the common source circuit of the differential amplifier |
| Total patents | 129 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 12 |
| 2017 | 10 |
| 2018 | 14 |
| 2019 | 14 |
| 2020 | 10 |
| 2021 | 9 |
| 2022 | 13 |
| 2023 | 15 |
| 2024 | 9 |
| 2025 | 10 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Amplification interface, and corresponding measurement system and method for calibrating an amplification interface
US-2020259474-A1 · Aug 13, 2020 · US
Pole-splitting and feedforward capacitors in common mode feedback of fully differential amplifier
US-2020177144-A1 · Jun 4, 2020 · US
Analog to digital converter with inverter based amplifier
US-2020136639-A1 · Apr 30, 2020 · US
Common mode feedback circuit with backgate control
US-10523165-B2 · Dec 31, 2019 · US
Low noise differential amplifier
US-10491166-B2 · Nov 26, 2019 · US
Residue amplifier
US-10483993-B1 · Nov 19, 2019 · US
Low noise differential amplifier
US-2019273471-A1 · Sep 5, 2019 · US
Differential amplifier with complementary unit structure
US-10374554-B2 · Aug 6, 2019 · US
Amplification circuit with split-length compensation scheme
US-10355656-B2 · Jul 16, 2019 · US
Differential amplifier with complementary unit structure
US-2019199290-A1 · Jun 27, 2019 · US
Amplifier and semiconductor apparatus using the same
US-10284156-B2 · May 7, 2019 · US
Power supplying apparatus for neural activity recorder reducing common-mode signal applied to electrodes connected to the neural activity recorder
US-10263580-B2 · Apr 16, 2019 · US
Apparatus and method for centrally controlling common mode voltages for a set of receivers
US-10243531-B1 · Mar 26, 2019 · US
High gain differential amplifier with common-mode feedback
US-10236843-B2 · Mar 19, 2019 · US
Apparatus and method for centrally controlling common mode voltages for a set of receivers
US-2019081604-A1 · Mar 14, 2019 · US
Amplification circuit with split-length compensation scheme
US-2019007013-A1 · Jan 3, 2019 · US
Operational amplifier and differential amplifying circuit thereof
US-10171052-B2 · Jan 1, 2019 · US
Inverter amplifier comparator
US-2018337645-A1 · Nov 22, 2018 · US
High gain differential amplifier with common-mode feedback
US-2018323760-A1 · Nov 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F3/4565?
- CPC H03F3/4565 is the Cooperative Patent Classification code for “Controlling the common source circuit of the differential amplifier.”
- How many patents are filed under CPC H03F3/4565 (Controlling the common source circuit of the differential amplifier)?
- Our database includes 129 publications tagged with this CPC code.
- Is patent activity under CPC H03F3/4565 growing?
- Publication counts under this code: 9 in 2024 vs 10 in 2025 (latest complete years).