Title (en)

Motor driving system

Title (de)

Motorantriebssystem

Title (fr)

Système d'entraînement d'un moteur

Publication

EP 0985753 A1 20000315 (EN)

Application

EP 99110250 A 19990527

Priority

JP 24556898 A 19980831

Abstract (en)

To provide a motor driving system that does not require a backup power supply apparatus. A motor driving system for converting an alternating current power supply (1) into a direct current power supply (2) and using the direct current power supply (2) to drive motors (11) and (12) by rotation-speed-controlling apparatuses (8) and (9), wherein the direct current power supply (2) supplies controlling power via a DC/DC converter (6) to external equipment (7) different from the rotation-speed-controlling apparatus. <IMAGE>

IPC 1-7

D01H 1/32; D01H 13/14

IPC 8 full level

D01H 1/244 (2006.01); D01H 1/32 (2006.01); D01H 13/14 (2006.01); H02P 3/18 (2006.01); H02P 5/46 (2006.01); H02P 5/54 (2016.01); H02P 6/00 (2006.01)

CPC (source: EP KR)

D01H 1/244 (2013.01 - EP KR); D01H 1/32 (2013.01 - EP KR); D01H 13/14 (2013.01 - EP KR)

Citation (search report)

• [A] EP 0537344 A1 19930421 - HITACHI LTD [JP]
• [A] DE 3900408 A1 19900712 - RIETER AG MASCHF [CH]
• [A] EP 0526404 A1 19930203 - HOWA MACHINERY LTD [JP]
• [A] WO 9702650 A1 19970123 - REEL SRL [IT], et al

Designated contracting state (EPC)

DE FR IT

DOCDB simple family (publication)

EP 0985753 A1 20000315; CN 1187886 C 20050202; CN 1246751 A 20000308; JP 2000078870 A 20000314; KR 20000017626 A 20000325; TW 419883 B 20010121

DOCDB simple family (application)

EP 99110250 A 19990527; CN 99118950 A 19990831; JP 24556898 A 19980831; KR 19990036185 A 19990830; TW 88101729 A 19990204