EP 0814396 A3 19981209 - Circuit for generating a voltage reference
Title (en)
Circuit for generating a voltage reference
Title (de)
Schaltungsanordnung zur Erzeugung eines Referenzpotentials
Title (fr)
Circuit pour générer une tension de référence
Publication
Application
Priority
DE 19624676 A 19960620
Abstract (en)
[origin: DE19624676C1] The circuit arrangement comprises a first transistor (T1), whose emitter is joined with a ground voltage (M) and whose basis and collector are connected with each other, and a second transistor (T2), whose basis is joined with the basis of the first transistor. A first resistance (R1) is connected between the collector of the first transistor and an output (U) for providing the reference voltage. A second resistance (R2), is connected between the collector of the second transistor and the output. A third resistance (R3) is connected between the emitter of the second transistor and the ground voltage. A third transistor (T3) is provided, whose basis is connected with the collector of the second transistor and whose emitter is joined with the ground voltage. A fourth transistor (T4) has its collector connected with supply voltage (V), its emitter connected to the output and its basis to the collector of the third transistor, whereby a first current source (R5, T5) is provided between basis and collector of the fourth transistor. A second current source (T17, R16) is connected in parallel to the first current source, for compensation of the current sway of the first current source.
IPC 1-7
IPC 8 full level
G05F 3/22 (2006.01); G05F 3/26 (2006.01); G05F 3/30 (2006.01)
CPC (source: EP US)
G05F 3/222 (2013.01 - EP US); G05F 3/265 (2013.01 - EP US)
Citation (search report)
- [A] EP 0411657 A1 19910206 - TOSHIBA KK [JP]
- [A] EP 0620515 A1 19941019 - TEXAS INSTRUMENTS DEUTSCHLAND [DE]
- [A] US 5049806 A 19910917 - URAKAWA YUKIHIRO [JP], et al
- [A] US 5430395 A 19950704 - ICHIMARU KOUZO [JP]
- [A] EP 0396996 A2 19901114 - NAT SEMICONDUCTOR CORP [US]
- [A] EP 0656575 A1 19950607 - PHILIPS ELECTRONICS NV [NL]
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)
DE 19624676 C1 19971002; DE 59702395 D1 20001102; EP 0814396 A2 19971229; EP 0814396 A3 19981209; EP 0814396 B1 20000927; US 5969566 A 19991019
DOCDB simple family (application)
DE 19624676 A 19960620; DE 59702395 T 19970609; EP 97109351 A 19970609; US 87959397 A 19970620