The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2020
Filed:
Sep. 16, 2015
Resmed Motor Technologies Inc., Chatsworth, CA (US);
David James Fleming, Cardiff, CA (US);
Michael Grunberg, Canoga Park, CA (US);
Aleksandr S. Nagorny, Canoga Park, CA (US);
Siavash Sadeghi, Northridge, CA (US);
ResMed Motor Technologies Inc., Chatsworth, CA (US);
Abstract
A method of a control system () 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.