EP 2097982 A1 20090909 - CONTROL CLOSED-LOOP DEVICE AND SIGMA-DELTA MODULATOR
Title (en)
CONTROL CLOSED-LOOP DEVICE AND SIGMA-DELTA MODULATOR
Title (de)
REGELSCHLEIFENEINRICHTUNG UND SIGMA-DELTA-MODULATOR
Title (fr)
DISPOSITIF DE BOUCLE FERMEE D'ASSERVISSEMENT ET MODULATEUR SIGMA-DELTA
Publication
Application
Priority
- EP 2007061564 W 20071026
- FR 0609560 A 20061031
Abstract (en)
[origin: FR2907987A1] The device has a summing element (15) summing a compensation noise to an analog input signal (e) of a control loop in a sigma-delta modulator based on a reference voltage of a current source that supplies an analog-to-digital converter (11). The compensation noise is equal to the input signal that is multiplied by a multiplicative noise of the converter. A differential amplifier generates the compensation noise and receives an input voltage of the loop. An independent claim is also included for a sigma-delta modulator for converting an input analog signal to an output digital signal.
IPC 8 full level
H03M 3/02 (2006.01); G05B 11/01 (2006.01); H03M 1/08 (2006.01)
CPC (source: EP US)
H03M 3/388 (2013.01 - EP US); H03M 3/424 (2013.01 - EP US)
Citation (search report)
See references of WO 2008052948A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2907987 A1 20080502; FR 2907987 B1 20090123; EP 2097982 A1 20090909; US 2010060499 A1 20100311; US 7965210 B2 20110621; WO 2008052948 A1 20080508
DOCDB simple family (application)
FR 0609560 A 20061031; EP 07821924 A 20071026; EP 2007061564 W 20071026; US 51306707 A 20071026