Alternating current (AC) voltage regulator and method of operating the same
US-11777418-B2 · Oct 3, 2023 · US
using discharge tubes or semiconductor devices as final control devices
using discharge tubes or semiconductor devices as final control devices · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G05F1/40 |
| Official title | using discharge tubes or semiconductor devices as final control devices |
| Display label | using discharge tubes or semiconductor devices as final control devices |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 6 |
| 2018 | 12 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Alternating current (ac) voltage regulator and method of operating the same
US-2023170817-A1 · Jun 1, 2023 · US
Voltage reference buffer circuit
US-11567522-B2 · Jan 31, 2023 · US
Alternating current (AC) voltage regulator and method of operating the same
US-11569750-B2 · Jan 31, 2023 · US
Voltage regulator
US-11442484-B2 · Sep 13, 2022 · US
Circuit structure for suppressing surge current
US-11349302-B2 · May 31, 2022 · US
Alternating current (ac) voltage regulator and method of operating the same
US-2022029550-A1 · Jan 27, 2022 · US
Voltage reference buffer circuit
US-2021382512-A1 · Dec 9, 2021 · US
Alternating current (AC) voltage regulator and method of operating the same
US-11152871-B2 · Oct 19, 2021 · US
Voltage regulator
US-2021247791-A1 · Aug 12, 2021 · US
Circuit structure for suppressing surge current
US-2021226442-A1 · Jul 22, 2021 · US
Method and circuitry for compensating low dropout regulators
US-11009900-B2 · May 18, 2021 · US
Alternating current (ac) voltage regulator and method of operating the same
US-2020403524-A1 · Dec 24, 2020 · US
Switched mode power supply circuit
US-10756628-B2 · Aug 25, 2020 · US
Power output control module for a power distributor
US-10606291-B2 · Mar 31, 2020 · US
Power conversion device, slow soft-startup circuit, and power conversion chip
US-10498254-B2 · Dec 3, 2019 · US
Step-up/down power supply and power supply circuit
US-10340799-B2 · Jul 2, 2019 · US
Circuit having a variable output and a converter controller including same
US-10276084-B2 · Apr 30, 2019 · US
Power output control module for a power distributor
US-2019011942-A1 · Jan 10, 2019 · US
Charger circuit and power conversion circuit thereof
US-10177420-B2 · Jan 8, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G05F1/40?
- CPC G05F1/40 is the Cooperative Patent Classification code for “using discharge tubes or semiconductor devices as final control devices.”
- How many patents are filed under CPC G05F1/40 (using discharge tubes or semiconductor devices as final control devices)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC G05F1/40 growing?
- Publication counts under this code: 3 in 2022 vs 4 in 2023 (latest complete years).