Patent · US Active

Operating a brushless DC motor

US11563399B2 · kind B2 · utility

0Cited by
4References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 13, 2019
Grant dateJan 24, 2023
Priority date
Expiry dateSep 13, 2039

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02P3/00
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A motor control apparatus for a three-phase brushless DC motor. The motor control apparatus comprises a power converter which has, for each phase of the brushless DC motor, an electrical half-bridge having two electronic switches, and an application-specific integrated circuit for actuating the electronic switches of the power converter. The application-specific integrated circuit can be controlled by a programmable control unit in a normal mode, has a first interface for receiving an error signal signaling a malfunction and is designed to change the power converter to a defined final operating state independently of the programmable control unit after receiving the error signal.

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