EP 0264563 A1 19880427 - Voltage regulator having a precision thermal current source.
Title (en)
Voltage regulator having a precision thermal current source.
Title (de)
Spannungsregler mit Präzisionsthermostromquelle.
Title (fr)
Régulateur de tension avec source de courant thermique de précision.
Publication
Application
Priority
- US 91548186 A 19861006
- US 91548386 A 19861006
Abstract (en)
A voltage supply circuit for supplying a regulated output voltage the magnitude and temperature coefficient of which can be independently controlled. A pair of transistors and associated circuitry develop a voltage proportional to the V BE of the two transistors which are operated at different current densities and sets a first current through the collector of a third transistor which is proportional to V BE having a positive temperature coefficient (TC). A second current proportional to the negative temperature coefficient base-to-emitter voltage of the third transistor is generated and combined with the first current to produce a third current having a net negative, zero or positive TC. The third current is used to develop a voltage which is combined with the base-to-emitter voltage of the third transistor to produce the output voltage.
IPC 1-7
IPC 8 full level
H01L 35/00 (2006.01); G05F 3/30 (2006.01); H01L 35/28 (2006.01)
CPC (source: EP KR)
Citation (search report)
- [A] US 4590419 A 19860520 - MORIARTY JR JOHN K [US]
- [A] US 4308496 A 19811229 - NAGANO KATSUMI
- [A] US 4157493 A 19790605 - MONTICELLI DENNIS M [US]
- [A] US 3887863 A 19750603 - BROKAW ADRIAN PAUL
- [A] WO 8201105 A1 19820401 - WESTERN ELECTRIC CO [US]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0264563 A1 19880427; EP 0264563 B1 19931103; DE 3788033 D1 19931209; DE 3788033 T2 19940303; JP H0760352 B2 19950628; JP S6398159 A 19880428; KR 880005501 A 19880629; KR 950010131 B1 19950907
DOCDB simple family (application)
EP 87111725 A 19870813; DE 3788033 T 19870813; JP 24286287 A 19870929; KR 870011089 A 19871005