Apparatus and method for controlling switching of high speed wiring mode of a motor
US-11177758-B2 · Nov 16, 2021 · US
by star/delta switching
by star/delta switching · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P1/32 |
| Official title | by star/delta switching |
| Display label | by star/delta switching |
| Total patents | 67 |
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 | 13 |
| 2017 | 9 |
| 2018 | 7 |
| 2019 | 11 |
| 2020 | 13 |
| 2021 | 7 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air conditioner and method for controlling air conditioner
US-11101763-B2 · Aug 24, 2021 · US
Motor drive unit, compressor, and air conditioner
US-11070157-B2 · Jul 20, 2021 · US
Electric-motor driving device and refrigeration-cycle application apparatus including electric-motor driving device
US-11070161-B2 · Jul 20, 2021 · US
Vacuum pump drive with star-delta switchover
US-10931218-B2 · Feb 23, 2021 · US
Apparatus and method for controlling switching of high speed wiring mode of a motor
US-2020403549-A1 · Dec 24, 2020 · US
Temperature-based electromagnetic switching
US-10866284-B2 · Dec 15, 2020 · US
Power supply device of reduced complexity accepting power through wye and delta configurations
US-2020366219-A1 · Nov 19, 2020 · US
Motor drive unit, compressor, and air conditioner
US-2020321900-A1 · Oct 8, 2020 · US
Driving device, air conditioner, and method for driving motor
US-10763773-B2 · Sep 1, 2020 · US
Motor protection and control apparatus, system, and/or method
US-10756652-B2 · Aug 25, 2020 · US
Engine generator
US-10697416-B2 · Jun 30, 2020 · US
Electric-motor driving device and refrigeration-cycle application apparatus including electric-motor driving device
US-2020162009-A1 · May 21, 2020 · US
A method for reducing the maximum inrush current of a compressor system comprising multiple asynchronous electrical motors and a compressor system for implementing this method
US-2020119664-A1 · Apr 16, 2020 · US
Method for controlling the speed of a motor
US-2020067441-A1 · Feb 27, 2020 · US
Motor driving device and air conditioner
US-2020018534-A1 · Jan 16, 2020 · US
Driving device, air conditioner, and method for controlling compressor
US-2020021224-A1 · Jan 16, 2020 · US
Driving device, air conditioner, and method for driving motor
US-2020021222-A1 · Jan 16, 2020 · US
Engine generator comprising an electrical load-dependent delta to WYE switching unit
US-10483890-B2 · Nov 19, 2019 · US
PCB motor controller with POW switching
US-10396688-B2 · Aug 27, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P1/32?
- CPC H02P1/32 is the Cooperative Patent Classification code for “by star/delta switching.”
- How many patents are filed under CPC H02P1/32 (by star/delta switching)?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC H02P1/32 growing?
- Publication counts under this code: 2 in 2023 vs 2 in 2025 (latest complete years).