EP 1066552 A1 20010110 - CIRCUIT FOR CONTROLLING AND MEASURING THE LOAD CURRENT THROUGH A LOAD
Title (en)
CIRCUIT FOR CONTROLLING AND MEASURING THE LOAD CURRENT THROUGH A LOAD
Title (de)
SCHALTUNGSANORDNUNG ZUR STEUERUNG UND ERFASSUNG DES LASTSTROMES DURCH EINE LAST
Title (fr)
CIRCUIT POUR REGULER ET MESURER LE COURANT DE CHARGE PASSANT A TRAVERS UNE CHARGE
Publication
Application
Priority
- DE 9900310 W 19990204
- DE 19812920 A 19980324
Abstract (en)
[origin: WO9949377A1] The invention relates to a circuit for controlling the current flow (IL) through a load (RL) as said current flow (IL) is measured using the current-sense principle. The inventive circuit has a first transistor pair (P1) consisting of a first load and auxiliary transistor (T11, T21) which have a common control terminal (G1) and which each have a first load path terminal (S). The load (RL) is connected to the first load path terminal (S) of the first load transistor (T11). A measuring arrangement (MA) is connected to the first load path terminal (S) of the first load transistor (T11) by a first input terminal (EK1) and to the first load path terminal (S) of the first auxiliary transistor (T12) by a second input terminal (EK2), and has an output terminal (AK) on which a current flow signal (UA) can be tapped. At least one other load transistor (T12, T1n) is connected in parallel with the first load transistor (11), said other load transistor being controlled by another control terminal (G2, Gn) in dependence on the current (IL) flowing through the load.
IPC 1-7
IPC 8 full level
G01R 17/06 (2006.01); G05F 1/10 (2006.01); G05F 1/575 (2006.01); H03K 17/12 (2006.01); G05F 1/565 (2006.01)
CPC (source: EP)
G01R 17/06 (2013.01); G05F 1/575 (2013.01); H03K 17/122 (2013.01); G05F 1/565 (2013.01); H03K 17/0822 (2013.01); H03K 2217/0027 (2013.01)
Citation (search report)
See references of WO 9949377A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9949377 A1 19990930; DE 19812920 A1 19991202; DE 19812920 C2 20000907; EP 1066552 A1 20010110; JP 2002508542 A 20020319
DOCDB simple family (application)
DE 9900310 W 19990204; DE 19812920 A 19980324; EP 99910105 A 19990204; JP 2000538283 A 19990204