Global Patent Index - EP 1297615 A1

EP 1297615 A1 20030402 - METHOD FOR OPERATING A BRUSHLESS DIRECT CURRENT MOTOR

Title (en)

METHOD FOR OPERATING A BRUSHLESS DIRECT CURRENT MOTOR

Title (de)

VERFAHREN ZUM BETRIEB EINES BÜRSTENLOSEN GLEICHSTROMMOTORS

Title (fr)

PROCEDE POUR FAIRE FONCTIONNER UN MOTEUR A COURANT CONTINU SANS BALAIS

Publication

EP 1297615 A1 20030402 (DE)

Application

EP 01960409 A 20010628

Priority

  • DE 10032896 A 20000706
  • EP 0107384 W 20010628

Abstract (en)

[origin: WO0203538A1] The invention relates to a brushless direct current motor comprising a synchronous motor, which is supplied with a direct current voltage as the input voltage for commutating the motor phases. The aim of the invention is to simply modify the speed of the synchronous motor without malfunctions. To achieve this, in a first speed range, a linear modification of the input voltage is carried out up to a speed threshold value and in a second speed range with a higher speed, which succeeds the first speed range, a vector modification of the input voltage is carried out. The invention also relates to a method for modifying the speed of a fan motor.

IPC 1-7

H02P 21/00

IPC 8 full level

H02P 6/08 (2016.01); H02P 6/10 (2006.01)

CPC (source: EP)

H02P 6/085 (2013.01); H02P 6/10 (2013.01)

Citation (search report)

See references of WO 0203538A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 0203538 A1 20020110; DE 10032896 A1 20020124; EP 1297615 A1 20030402; US 2003146729 A1 20030807; US 6838842 B2 20050104

DOCDB simple family (application)

EP 0107384 W 20010628; DE 10032896 A 20000706; EP 01960409 A 20010628; US 33221003 A 20030103