Ramp circuit
US-2024223204-A1 · Jul 4, 2024 · US
in which a sawtooth voltage is produced across a capacitor
in which a sawtooth voltage is produced across a capacitor · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03K4/50 |
| Official title | in which a sawtooth voltage is produced across a capacitor |
| Display label | in which a sawtooth voltage is produced across a capacitor |
| Total patents | 128 |
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 | 9 |
| 2017 | 16 |
| 2018 | 7 |
| 2019 | 22 |
| 2020 | 22 |
| 2021 | 11 |
| 2022 | 11 |
| 2023 | 7 |
| 2024 | 7 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Constant-frequency control method with fast transient
US-2019393783-A1 · Dec 26, 2019 · US
Parameter-independent ramp signal generation
US-2019379367-A1 · Dec 12, 2019 · US
Switch mode power supply with ramp generator for wide frequency range pulse width modulator or the like
US-2019326891-A1 · Oct 24, 2019 · US
Low Frequency Oscillator with Ultra-low Short Circuit Current
US-2019319614-A1 · Oct 17, 2019 · US
Ripple generation device and method for a constant on-time voltage regulator
US-10411595-B2 · Sep 10, 2019 · US
Ramp generator for wide frequency range pulse width modulator controller or the like
US-10389337-B2 · Aug 20, 2019 · US
Oscillation circuit
US-10348189-B2 · Jul 9, 2019 · US
Precision oscillators that use imprecise components
US-2019199330-A1 · Jun 27, 2019 · US
Ripple generation device and method for a constant on-time voltage regulator
US-2019199209-A1 · Jun 27, 2019 · US
Read-out circuits of image sensors and image sensors including the same
US-10334193-B2 · Jun 25, 2019 · US
System and method for online deep learning in an ultra-low power consumption state
US-10311341-B1 · Jun 4, 2019 · US
Self-biasing integrated oscillator without bandgap reference
US-10312887-B2 · Jun 4, 2019 · US
Method, Circuit, and Apparatus to Increase Robustness to Inrush Current in Power Switch Devices
US-2019158074-A1 · May 23, 2019 · US
Low power wake-up receiver
US-2019158133-A1 · May 23, 2019 · US
Semiconductor device, display panel, and electronic device
US-10249249-B2 · Apr 2, 2019 · US
Method, Circuit, and Apparatus to Increase Robustness to Inrush Current in Power Switch Devices
US-2019081617-A1 · Mar 14, 2019 · US
Cr oscillator
US-2019068175-A1 · Feb 28, 2019 · US
System and method for generating a ripple voltage for a ripple based constant-on-time DC-DC converter
US-10218274-B1 · Feb 26, 2019 · US
Ramp generation module
US-10069488-B2 · Sep 4, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03K4/50?
- CPC H03K4/50 is the Cooperative Patent Classification code for “in which a sawtooth voltage is produced across a capacitor.”
- How many patents are filed under CPC H03K4/50 (in which a sawtooth voltage is produced across a capacitor)?
- Our database includes 128 publications tagged with this CPC code.
- Is patent activity under CPC H03K4/50 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).