Global Patent Index - EP 3095195 A1

EP 3095195 A1 20161123 - DELTA-SIGMA MODULATOR

Title (en)

DELTA-SIGMA MODULATOR

Title (de)

DELTA-SIGMA-MODULATOR

Title (fr)

MODULATEUR DELTA-SIGMA

Publication

EP 3095195 A1 20161123 (DE)

Application

EP 15700313 A 20150114

Priority

  • DE 102014200856 A 20140117
  • EP 2015050615 W 20150114

Abstract (en)

[origin: WO2015107091A1] Embodiments provide a delta-sigma modulator for delivering an output signal on the basis of an input signal, comprising an integrator circuit, a first digital-analogue converter, a second digital-analogue converter, an analogue-digital converter and a control circuit. The integrator circuit is designed to deliver the output signal to an integrator output. The first digital-analogue converter (DAC) is coupled to an integrator input and designed to deliver a current on the basis of a first digital signal. The second digital-analogue converter (DAC) is coupled to an integrator output and designed to deliver a current on the basis of a second digital signal. The analogue-digital converter is coupled to the integrator output and designed to deliver the output signal in a digital form. The control circuit is coupled to the analogue-digital converter and designed to generate the first digital signal and the second digital signal on the basis of the digital output signal. The first digital signal describes pulses, and between the pulses the digital signal reverts to a zero value. The second digital signal describes an overlaying of pulses and a variable offset that follows the input signal.

IPC 8 full level

H03M 3/00 (2006.01)

CPC (source: EP)

H03M 3/358 (2013.01); H03M 3/348 (2013.01); H03M 3/43 (2013.01); H03M 3/464 (2013.01)

Citation (search report)

See references of WO 2015107091A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

DE 102014200856 B3 20150312; EP 3095195 A1 20161123; WO 2015107091 A1 20150723

DOCDB simple family (application)

DE 102014200856 A 20140117; EP 15700313 A 20150114; EP 2015050615 W 20150114