Global Patent Index - EP 0838899 A3

EP 0838899 A3 19980819 - Drive circuit

Title (en)

Drive circuit

Title (de)

Treiberschaltung

Title (fr)

Circuit de commande

Publication

EP 0838899 A3 19980819 (EN)

Application

EP 97308456 A 19971023

Priority

GB 9622330 A 19961026

Abstract (en)

[origin: EP0838899A2] A drive circuit is disclosed which includes a winding 18 of relatively low resistance, the winding 18 being connected to a source of DC supply, a chopping action being used to maintain the mean current in the winding 18 at a mean level, the volts/turn characteristics of the winding resulting from the low winding resistance resulting in the excess power available for charging a tank capacitor being increased. <IMAGE>

IPC 1-7

H03K 17/64

IPC 8 full level

F02D 41/20 (2006.01); F02M 51/00 (2006.01); H01F 7/18 (2006.01); H01H 47/04 (2006.01); H01H 47/32 (2006.01)

CPC (source: EP)

H01H 47/043 (2013.01); H01H 47/325 (2013.01)

Citation (search report)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 0838899 A2 19980429; EP 0838899 A3 19980819; GB 9622330 D0 19961218; JP H10189332 A 19980721

DOCDB simple family (application)

EP 97308456 A 19971023; GB 9622330 A 19961026; JP 29431297 A 19971027