Elektromotor mit Asymmetrischen Statorinduktoren

Details

Veröffentlichungs-Nr.

EP3663870

Aktenzeichen

EP18210866

Anmeldetag

6. Dezember 2018

Veröffentlichung

11. August 2021

Erteilung

11. August 2021

Rechtsraum

EP

IPC

G04C3/16G04C3/14H02P7/06

Abstract

The present invention concerns a DC motor (1) comprising: a continuous rotation rotor (3); a first inductor (A) characterised by first parameters; a second inductor (B) characterised by second parameters; a voltage supply unit (9); a measurement unit (11) for detecting time instants when a first induced voltage in the first inductor (A) equals a second induced voltage in the second inductor (B); and a control unit (5) for controlling the application of drive voltage pulses to the inductors. The rotor (3) faces first the second inductor (B) before facing the first inductor (A) when being rotated. At least one of the second parameters is selected different from a corresponding parameter of the first parameters such that a maximum induced voltage in the first inductor is greater than a maximum induced voltage in the second inductor. The control unit is arranged to trigger each of the drive voltage pulses after a detection of an equal induced voltage in the first and second inductors.

Anmelder

Firma

The Swatch Group Research and Development Ltd

Land

🇨🇭 Schweiz

Fachgebiete