Induction motor control
US10625035B2 · kind B2 · utility
3Cited by
5References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2015 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Oct 20, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of a control system (2200) controls an inductance motor in a blower including an impeller and volute using a pressure compensation control system. The control system may be implemented in a respiratory pressure therapy device. The control system may include a sensor configured to provide a pressure signal indicative of the pressure of a flow of fluid produced by the blower. A measured pressure may be compared to a set pressure to determine a pressure error. A slip frequency may be adjusted as a function of the pressure error in an attempt to eliminate or minimise the pressure error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.