Patent · US Active

Tuning DC brushless motors

US7859208B2 · kind B2 · utility

3Cited by

15References

28Claims

0Family size

Assignee

Thoratec Corporation · US

Inventors

Peter Ayre · Sydney, AU
Lee Thomas Glanzmann · Sydney, AU
Nicholas Oliver Von Huben · Sydney, AU

Key dates

Filing date	Dec 18, 2006
Grant date	Dec 28, 2010
Priority date	—
Expiry date	Jul 6, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M60/422
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method of tuning a DC brushless motor, wherein measurement of back EMF voltage is used to detect changes in the torque requirements caused by variation in the operating conditions of the DC brushless motor, the method including varying the timing of the driving signals to the motor to compensate for the changes in the torque requirements.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.