System and method of protecting a low voltage capacitor of an error amplifier operating in a higher voltage domain
US-2024097620-A1 · Mar 21, 2024 · US
using a switching device (H03F1/305, H03F3/005, H03F3/38 take precedence)
using a switching device (H03F1/305, H03F3/005, H03F3/38 take precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F1/303 |
| Official title | {using a switching device (H03F1/305, H03F3/005, H03F3/38 take precedence)} |
| Display label | using a switching device (H03F1/305, H03F3/005, H03F3/38 take precedence) |
| Total patents | 274 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 24 |
| 2017 | 31 |
| 2018 | 32 |
| 2019 | 26 |
| 2020 | 37 |
| 2021 | 23 |
| 2022 | 19 |
| 2023 | 26 |
| 2024 | 23 |
| 2025 | 17 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Adjustable time duration for driving pulse-width modulation (PWM) output to reduce thermal noise
US-9847773-B2 · Dec 19, 2017 · US
Power amplification circuit
US-2017317650-A1 · Nov 2, 2017 · US
Programmable amplifier circuit capable of providing large or larger resistance for feedback path of its amplifier
US-2017288617-A1 · Oct 5, 2017 · US
Low-noise high efficiency bias generation circuits and method
US-9778669-B2 · Oct 3, 2017 · US
Btl output self-oscillating class d amplifier
US-2017279422-A1 · Sep 28, 2017 · US
Low noise amplifier (lna) system
US-2017264249-A1 · Sep 14, 2017 · US
Switching amplifier with zero voltage switching and balanced thermal control algorithm
US-2017264248-A1 · Sep 14, 2017 · US
Settling time reduction for low noise amplifier
US-9755595-B1 · Sep 5, 2017 · US
High linearity inductorless lna
US-2017244367-A1 · Aug 24, 2017 · US
Power amplification circuit
US-9742358-B2 · Aug 22, 2017 · US
Event-based vision sensor and difference amplifier with reduced noise and removed offset
US-9739660-B2 · Aug 22, 2017 · US
Transceiver front end with low loss T/R switch
US-9729192-B2 · Aug 8, 2017 · US
Adjustable time duration for driving pulse-width modulation (pwm) output to reduce thermal noise
US-2017222629-A1 · Aug 3, 2017 · US
Self-biasing output booster amplifier and use thereof
US-2017215006-A1 · Jul 27, 2017 · US
Amplifying electronic circuit with reduced start-up time for a signal including quadrature components
US-2017187335-A1 · Jun 29, 2017 · US
Biasing circuitry
US-9692370-B2 · Jun 27, 2017 · US
Ground fault circuit interrupter and method
US-9680421-B2 · Jun 13, 2017 · US
Amplifying circuit
US-9666143-B2 · May 30, 2017 · US
Adjustable time duration for driving pulse-width modulation (PWM) output to reduce thermal noise
US-9660632-B1 · May 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F1/303?
- CPC H03F1/303 is the Cooperative Patent Classification code for “using a switching device (H03F1/305, H03F3/005, H03F3/38 take precedence).”
- How many patents are filed under CPC H03F1/303 (using a switching device (H03F1/305, H03F3/005, H03F3/38 take precedence))?
- Our database includes 274 publications tagged with this CPC code.
- Is patent activity under CPC H03F1/303 growing?
- Publication counts under this code: 23 in 2024 vs 17 in 2025 (latest complete years).