Calibration of DAC mismatch errors in sigma delta ADCs based on a sine-wave measurement [PDF]
, 2013 We present an offline calibration procedure to correct the nonlinearity due element mismatch in the digital-to-analog converter (DAC) of a multibit Sigma Delta-modulation A/D converter.
De Bock, Maarten +4 more
core +1 more source
Performance Scrutiny of Two Control Schemes Based on DSM and HB in Active Power Filter [PDF]
Journal of Operation and Automation in Power Engineering, 2014 This paper presents a comparative analysis between two current control strategies, constant source power and generalized Fryze current, used in Active Power Filter (APF) applications having three different modulation methods. The Hysteresis Band (HB) and
R. Kazemzadeh +3 more
doaj
Analogue to Digital and Digital to Analogue Converters (ADCs and DACs): A Review Update [PDF]
, 2016 This is a review paper updated from that presented for CAS 2004. Essentially, since then, commercial components have continued to extend their performance boundaries but the basic building blocks and the techniques for choosing the best device and ...
Pickering, J.
core +3 more sources
A ΣΔ Closed-Loop Interface for a MEMS Accelerometer with Digital Built-In Self-Test Function
Micromachines, 2018 Sigma-delta (ΣΔ) closed-loop operation is the best candidate for realizing the interface circuit of MEMS accelerometers. However, stability and reliability problems are still the main obstacles hindering its further development for high-end ...
Dongliang Chen +5 more
doaj +1 more source
A describing function study of saturated quantization and its application to the stability analysis of multi-bit sigma delta modulators [PDF]
, 2013 Just as their single-bit counterparts, multi-bit sigma delta modulators exhibit nonlinear behavior due to the presence of the quantizer in the loop. In the multi-bit case this is caused by the fact that any quantizer has a limited output range and hence ...
De Bock, Maarten +3 more
core +1 more source
Optics ExpressHigh-order quadrature amplitude modulation (QAM) can effectively improve the capacity and spectral efficiency of coherent optical transmission systems.
Tangyao Xie +5 more
semanticscholar +1 more source
Using a Second Order Sigma-Delta Control to Improve the Performance of Metal-Oxide Gas Sensors [PDF]
, 2018 Controls of surface potential have been proposed to accelerate the time response of MOX gas sensors. These controls use temperature modulations and a feedback loop based on first-order sigma-delta modulators to keep constant the surface potential ...
Domínguez Pumar, Manuel +4 more
core +3 more sources
Long Term Stable Δ-Σ NDIR Technique Based on Temperature Compensation
Applied Sciences, 2019 For a fast and long term stable Non Dispersive Infrared (NDIR) technology of gas concentration measurement, the temperature compensation is required.
Chih-Hsiung Shen, Jun-Hong Yeah
doaj +1 more source
Second-order sigma-delta modulator in standard cmos technology [PDF]
Serbian Journal of Electrical Engineering, 2004 As a part of wider project sigma-delta modulator was designed. It represents an A/D part of a power meter IC. Requirements imposed were: SNDR and dynamic range > 50 dB for maximum input swing of 250 mV differential at 50 Hz.
Milovanović Dragiša +2 more
doaj +1 more source
Nonlinear behaviors of bandpass sigma delta modulators with stable system matrices [PDF]
, 2005 It has been established that a class of bandpass sigma delta modulators (SDMs) may exhibit state space dynamics which are represented by elliptical or fractal patterns confined within trapezoidal regions when the system matrices are marginally stable. In
Ho, Yuk-Fan +3 more
core +1 more source