EP 0793159 B1 20080116 - Circuit for generation of a supply voltage
Title (en)
Circuit for generation of a supply voltage
Title (de)
Schaltungsanordnung zum Erzeugen einer Versorgungsspannung
Title (fr)
Circuit pour générer une tension d'alimentation
Publication
Application
Priority
DE 19607802 A 19960301
Abstract (en)
[origin: EP0793159A2] The controllable current source (I1) receives the input voltage (VIN) via a dropping resistance (RDU). The dropped voltage (VDU) is applied to an impedance convertor or driver/buffer amplifier (1) which gives the output voltage (VOUT). A resistive divider (R1,R2) supplies a fixed fraction (VT) of the output voltage to a comparator (K). Any discrepancy between this and a reference voltage (VREF) is used to adjust the current source. This may comprise a reference current source connected to the bases of three n-p-n transistors (one functioning as a diode) in a current mirror circuit.
IPC 8 full level
G05F 1/46 (2006.01)
CPC (source: EP)
G05F 1/465 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0793159 A2 19970903; EP 0793159 A3 19980311; EP 0793159 B1 20080116; DE 19607802 A1 19970904; DE 19607802 C2 19990819; DE 59712912 D1 20080306
DOCDB simple family (application)
EP 97101955 A 19970207; DE 19607802 A 19960301; DE 59712912 T 19970207