Global Patent Index - EP 1092263 A1

EP 1092263 A1 2001-04-18 - ELECTRONICALLY COMMUTATABLE MOTOR

Title (en)

ELECTRONICALLY COMMUTATABLE MOTOR

Title (de)

ELEKTRONISCH KOMMUTIERBARER MOTOR

Title (fr)

MOTEUR A COMMUTATION ELECTRIQUE

Publication

EP 1092263 A1 (DE)

Application

EP 00938494 A

Priority

  • DE 0001235 W
  • DE 19919035 A

Abstract (en)

[origin: DE19919035A1] The invention relates to an electronically commutatable motor whose excitation windings of the stator can be connected to a supply direct voltage in order to generate a rotary field for the permanent magnet rotor with a commutation frequency and which can be separated from said supply direct voltage. The excitation windings can be switched via semiconductor output stages which can be controlled by control signals having the commutation frequency of a control unit and whose operating conditions change according to a predetermined or predeterminable specified value. The disadvantages of motors having pulse-width modulated control of the excitation windings can be avoided by using a simplified motor control. To this end, the supply direct voltage is fed to a direct current converter whose output voltage for the semiconductor output stages with the excitation windings changes according to the specified value, and such that, independent of the specified value, the control unit fully controls the semiconductor output stages with non-clocked control signals having the commutation frequency.

IPC 1-7 (main, further and additional classification)

H02P 6/08

IPC 8 full level (invention and additional information)

H02P 6/08 (2006.01)

CPC (invention and additional information)

H02P 6/085 (2013.01)

Citation (search report)

See references of WO 0065709A1

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

DE 19919035 A1 20001102; CN 1302475 A 20010704; EP 1092263 A1 20010418; JP 2002543747 A 20021217; US 6388409 B1 20020514; WO 0065709 A1 20001102

INPADOC legal status


2009-09-16 [18R] REFUSED

- Effective date: 20090509

2008-12-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20081120

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE ES FR GB IT

2001-07-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010502

2001-04-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-04-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI