Transconductance-transimpedance amplifier with one or more common-mode feedback loops
US-2026058621-A1 · Feb 26, 2026 · US
Controlling the input circuit of the differential amplifier
Controlling the input 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 | H03F3/45645 |
| Official title | {Controlling the input circuit of the differential amplifier} |
| Display label | Controlling the input circuit of the differential amplifier |
| Total patents | 56 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 7 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 9 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low voltage differential signaling receiver
US-2026039513-A1 · Feb 5, 2026 · US
Amplifier and method for controlling common mode voltage of the same
US-12537490-B2 · Jan 27, 2026 · US
Amplifying circuit and rf circuit including the same
US-2026012148-A1 · Jan 8, 2026 · US
Low voltage differential signaling receiver
US-12470438-B2 · Nov 11, 2025 · US
Sample-and-hold amplifier
US-12407312-B2 · Sep 2, 2025 · US
Single-end-to-differential microphone circuit and electronic equipment
US-12335694-B2 · Jun 17, 2025 · US
Single-end-to-differential microphone circuit
US-12289082-B2 · Apr 29, 2025 · US
Audio amplifier circuitry
US-12283929-B2 · Apr 22, 2025 · US
Isolated amplifiers with reconfigurable filter
US-12273082-B2 · Apr 8, 2025 · US
Single-end-to-differential microphone circuit and electronic equipment
US-2025039600-A1 · Jan 30, 2025 · US
Single-end-to-differential microphone circuit
US-2025038713-A1 · Jan 30, 2025 · US
Low voltage differential signaling receiver
US-2025016031-A1 · Jan 9, 2025 · US
Chopper amplifying circuit employing negative impedance compensation technique
US-11984859-B2 · May 14, 2024 · US
Differential amplifier arrangement and converter arrangement
US-2024106400-A1 · Mar 28, 2024 · US
Audio amplifier circuitry
US-2024097633-A1 · Mar 21, 2024 · US
Amplification circuit
US-2024039493-A1 · Feb 1, 2024 · US
Isolated amplifiers with reconfigurable filter
US-2024030880-A1 · Jan 25, 2024 · US
Audio amplifier circuitry
US-11881826-B2 · Jan 23, 2024 · US
Differential transimpedance amplifier employing asymmetric signal paths
US-11811375-B2 · Nov 7, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F3/45645?
- CPC H03F3/45645 is the Cooperative Patent Classification code for “Controlling the input circuit of the differential amplifier.”
- How many patents are filed under CPC H03F3/45645 (Controlling the input circuit of the differential amplifier)?
- Our database includes 56 publications tagged with this CPC code.
- Is patent activity under CPC H03F3/45645 growing?
- Publication counts under this code: 6 in 2024 vs 9 in 2025 (latest complete years).