Global Patent Index - EP 1066552 A1

EP 1066552 A1 2001-01-10 - 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

EP 1066552 A1 (DE)

Application

EP 99910105 A

Priority

  • DE 9900310 W
  • DE 19812920 A

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 (main, further and additional classification)

G05F 1/575; G01R 17/06

IPC 8 full level (invention and additional information)

G05F 1/10 (2006.01); G01R 17/06 (2006.01); G05F 1/575 (2006.01); H03K 17/12 (2006.01); G05F 1/565 (2006.01)

CPC (invention and additional information)

H03K 17/122 (2013.01); G01R 17/06 (2013.01); G05F 1/575 (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

EPO simple patent family

WO 9949377 A1 19990930; DE 19812920 A1 19991202; DE 19812920 C2 20000907; EP 1066552 A1 20010110; JP 2002508542 A 20020319

INPADOC legal status


2002-07-03 [18R] REFUSED

- Effective date: 20020211

2001-05-09 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: INFINEON TECHNOLOGIES AG

2001-03-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010201

2001-01-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000417

2001-01-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT