Digital to analog converter
US-12401370-B2 · Aug 26, 2025 · US
using a semiconductor device with negative feedback through a capacitor, e.g. Miller integrator
using a semiconductor device with negative feedback through a capacitor, e.g. Miller integrator · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03K4/56 |
| Official title | using a semiconductor device with negative feedback through a capacitor, e.g. Miller integrator |
| Display label | using a semiconductor device with negative feedback through a capacitor, e.g. Miller integrator |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 3 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low power current integration DAC ramp settling assist circuit
US-12250485-B2 · Mar 11, 2025 · US
Low power current integration dac ramp settling assist circuit
US-2023336165-A1 · Oct 19, 2023 · US
Common-mode leakage error calibration for current sensing in a Class-D stage using a pilot tone
US-11750157-B2 · Sep 5, 2023 · US
Oscillating circuit and electronic device
US-11476803-B2 · Oct 18, 2022 · US
Oscillating circuit and electronic device
US-2022247354-A1 · Aug 4, 2022 · US
Common-mode leakage error calibration for current sensing in a class-d stage using a pilot tone
US-2022158597-A1 · May 19, 2022 · US
PWM modulator having quantizer calibratable for multi-non-ideal gain-affecting characteristics
US-11296685-B2 · Apr 5, 2022 · US
Common-mode leakage error calibration for current sensing in a class-D stage using a pilot tone
US-11290070-B2 · Mar 29, 2022 · US
Common-mode leakage error calibration for current sensing in a class-d stage using a pilot tone
US-2021351751-A1 · Nov 11, 2021 · US
Pwm modulator having quantizer calibratable for multi-non-ideal gain-affecting characteristics
US-2021044285-A1 · Feb 11, 2021 · US
Integrating ramp circuit with reduced ramp settling time
US-10826470-B2 · Nov 3, 2020 · US
PWM modulator having quantizer with controllable analog gain and calibratable for multi-non-ideal gain-affecting characteristics
US-10819328-B2 · Oct 27, 2020 · US
Integrating ramp circuit with reduced ramp settling time
US-2020295739-A1 · Sep 17, 2020 · US
Chopped triangular wave PWM quantizer
US-10659029-B2 · May 19, 2020 · US
Chopped triangular wave pwm quantizer
US-2020119725-A1 · Apr 16, 2020 · US
Pwm modulator having quantizer with controllable analog gain and calibratable for multi-non-ideal gain-affecting characteristics
US-2020119702-A1 · Apr 16, 2020 · US
Signal output circuit
US-10425069-B2 · Sep 24, 2019 · US
Signal output circuit
US-2019020332-A1 · Jan 17, 2019 · US
Ramp generator for wide frequency range pulse width modulator controller or the like
US-2017338807-A1 · Nov 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03K4/56?
- CPC H03K4/56 is the Cooperative Patent Classification code for “using a semiconductor device with negative feedback through a capacitor, e.g. Miller integrator.”
- How many patents are filed under CPC H03K4/56 (using a semiconductor device with negative feedback through a capacitor, e.g. Miller integrator)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC H03K4/56 growing?
- Publication counts under this code: 2 in 2023 vs 2 in 2025 (latest complete years).