EP 0598147 A1 19940525 - Current generating circuit.
Title (en)
Current generating circuit.
Title (de)
Schaltung zur Stromversorgung.
Title (fr)
Circuit de génération de courant.
Publication
Application
Priority
EP 92203508 A 19921116
Abstract (en)
The current generating circuit is independent from power supply fluctuations and temperature variations. It includes the series connection of a main current source MCR which generates a reference current Iref from a reference voltage Vref generated by a voltage source VRS, and a current mirror CM. VRS uses Iref to generate Vref and consequently an auxiliary current source ACS is needed to start-up the current generating circuit. ACS includes a current source CS and a regulating stage RS to disable CS after start-up. RS includes a branch M2-R2 wherein a current equal to Iref flows and disables CS based on the value of Iref. CM realizes the distribution of Iref over an integrated circuit (not shown) and to VRS.
IPC 1-7
IPC 8 full level
CPC (source: EP)
G05F 3/262 (2013.01); G05F 3/267 (2013.01)
Citation (search report)
- [A] US 4839535 A 19890613 - MILLER IRA [US]
- [A] US 4857823 A 19890815 - BITTING RICKY F [US]
- [A] PATENT ABSTRACTS OF JAPAN vol. 10, no. 177 (P-470)(2233) 21 June 1986 & JP-A-61 026 117 ( ROHM CO LTD ) 5 February 1986
Designated contracting state (EPC)
BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0598147 A1 19940525; EP 0598147 B1 19960828; DE 69213243 D1 19961002; DE 69213243 T2 19970306; ES 2094282 T3 19970116
DOCDB simple family (application)
EP 92203508 A 19921116; DE 69213243 T 19921116; ES 92203508 T 19921116