WestminsterResearch

Nonlinear-stability analysis of higher order ∆ –Σ modulators for DC and sinusoidal inputs

Lota, Jaswinder and Al-Janabi, Mohammed and Kale, Izzet (2008) Nonlinear-stability analysis of higher order ∆ –Σ modulators for DC and sinusoidal inputs. IEEE Transactions on Instrumentation and Measurement, 57 (3). pp. 530-542. ISSN 0018-9456

[img]
Preview
PDF
2581Kb

Official URL: http://dx.doi.org/10.1109/TIM.2007.911640

Abstract

The maximum stable input limits for third-, fourth-and fifth-order Chebyshev Type II based Δ-Σ modulators are established using the Describing Function Method for DC and sinusoidal inputs. Closed-form mathematical expressions for the gains of the quantizer for higher-order Δ-Σ modulators whose inputs are two concurrent sinusoids are derived from first principles. The derived stability curves are shown to agree reasonably well with the simulation results for different types of input signals and amplitudes.

Item Type:Article
Uncontrolled Keywords:Δ-Σ modulators, nonlinear, stability, quantizer gain, DC and sinusoidal inputs
Research Community:University of Westminster > Electronics and Computer Science, School of
ID Code:5299
Deposited On:26 Jun 2008 10:22
Last Modified:11 Aug 2010 15:33

Repository Staff Only: item control page