Single-ended amplifier circuit with improved chopper configuration
US-10116267-B2 · Oct 30, 2018 · US
with field-effect devices
with field-effect devices · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F3/393 |
| Official title | with field-effect devices |
| Display label | with field-effect devices |
| Total patents | 201 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 21 |
| 2017 | 22 |
| 2018 | 27 |
| 2019 | 16 |
| 2020 | 27 |
| 2021 | 19 |
| 2022 | 14 |
| 2023 | 16 |
| 2024 | 13 |
| 2025 | 14 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and apparatus for reducing impact of transistor random mismatch in circuits
US-10097169-B1 · Oct 9, 2018 · US
Switched-capacitor bandgap reference circuit using chopping technique
US-10082819-B2 · Sep 25, 2018 · US
Reducing offset from an amplifier output without a low pass filter
US-2018254752-A1 · Sep 6, 2018 · US
Signal selection circuit and semiconductor device
US-2018234087-A1 · Aug 16, 2018 · US
Amplifiers
US-9998079-B2 · Jun 12, 2018 · US
Fast settling capacitive gain amplifier circuit
US-2018076779-A1 · Mar 15, 2018 · US
Chopper stabilized amplifier
US-9899974-B2 · Feb 20, 2018 · US
High Frequency Common Mode Rejection Technique for Large Dynamic Common Mode Signals
US-2017373655-A1 · Dec 28, 2017 · US
Amplifiers
US-2017310290-A1 · Oct 26, 2017 · US
Fixed gain amplifier circuit
US-9755597-B2 · Sep 5, 2017 · US
Apparatus and methods for reducing input bias current of an electronic circuit
US-9735736-B2 · Aug 15, 2017 · US
Precise current measurement with chopping technique for high power driver
US-9733276-B2 · Aug 15, 2017 · US
Differential amplifier and display driver including the same
US-9722554-B2 · Aug 1, 2017 · US
Voltage-current converter, and corresponding device and method
US-2017212546-A1 · Jul 27, 2017 · US
Low noise amplifier circuit
US-2017207761-A1 · Jul 20, 2017 · US
Chopper stabilized amplifier with synchronous switched capacitor noise filtering
US-9698741-B2 · Jul 4, 2017 · US
Amplifier circuit
US-9685914-B2 · Jun 20, 2017 · US
Precise Current Measurement With Chopping Technique for High Power Driver
US-2017153278-A1 · Jun 1, 2017 · US
Hot-swap current-sensing system
US-9641142-B2 · May 2, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F3/393?
- CPC H03F3/393 is the Cooperative Patent Classification code for “with field-effect devices.”
- How many patents are filed under CPC H03F3/393 (with field-effect devices)?
- Our database includes 201 publications tagged with this CPC code.
- Is patent activity under CPC H03F3/393 growing?
- Publication counts under this code: 13 in 2024 vs 14 in 2025 (latest complete years).