Results 201 to 210 of about 29,434 (259)
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2018
This chapter provides a general overview on the discrete-time ΔΣMs (DTΣΔΣMs) and continuous-time ΔΣMs (CTΔΣMs). An introduction on two different topologies of implementing high-order CTΔΣMs, single-loop and MASH, is presented. The benefits of employing a MASH topology for CT-ΔΣMs are also discussed in this chapter.
Qiyuan Liu +3 more
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This chapter provides a general overview on the discrete-time ΔΣMs (DTΣΔΣMs) and continuous-time ΔΣMs (CTΔΣMs). An introduction on two different topologies of implementing high-order CTΔΣMs, single-loop and MASH, is presented. The benefits of employing a MASH topology for CT-ΔΣMs are also discussed in this chapter.
Qiyuan Liu +3 more
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2015
Delta modulation was actively developed for communication purposes in the sixties and seventies. It has also had applications in consumer audio equipment, industrial electronics devices, and precision measurement devices (see Jarman [14]). It consisted in an underlying analog-to-fixed sampling frequency pulse-width-modulation encoding transformation of
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Delta modulation was actively developed for communication purposes in the sixties and seventies. It has also had applications in consumer audio equipment, industrial electronics devices, and precision measurement devices (see Jarman [14]). It consisted in an underlying analog-to-fixed sampling frequency pulse-width-modulation encoding transformation of
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Analysis of Delta Sigma Modulator
2011 International Conference on Computational Intelligence and Communication Networks, 2011This paper presents the analysis of Delta sigma modulators. First order, second order, third order and a 2-1 cascaded modulator are presented here. The higher the order of modulator higher is the order of noise shaping offered by the design but higher order modulators suffer from potential instability.
Divya Mahajan +2 more
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A novel delta-sigma modulated space vector modulation scheme using scalar delta-sigma modulators
IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03., 2003With advances of semiconductor switching power devices, operating frequency and power capacity of switching mode power converters are much improved. In these converters, pulse width modulation (PWM) technique is widely used, but by using this control scheme, large peak noise spectra appear with odd interval of carrier frequency.
A. Hirota, S. Nagai, M. Nakaoka
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Noise Study of an Asynchronous Delta Sigma Modulator
IEEE Transactions on Communications, 1980Summary: The steady-state probability density function of the error of an asynchronous delta sigma modulator in the presence of a dc input and additive Gaussian noise with RC power spectrum is obtained by solving the Fokker-Planck equation. The error pdf plots are presented for different system parameters.
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Incremental delta-sigma modulator
A delta-sigma modulator with reset for incremental ∆Σ ADCs for the 180 nm CMOS technology with a supply voltage of 3.3 V from Mikron JSC is presented. The simulation of the ∆Σ modulator in the time domain in the Virtuoso analog design environment from Cadence DS was performed. The clock frequency was set to 6.25 MHz. The power consumption was about 9.5Pilipko, Mikhail, Morozov, Dmitry
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The FirstOrder Delta Sigma Modulator
2009This chapter contains sections titled: Quantizers and Quantization Noise MOD1 as an ADC MOD1 as a DAC MOD1 Linear Model Simulation of MOD1 MOD1 under DC Excitation Stability of MOD1 The Effects of Finite Op-Amp Gain Decimation Filters for MOD1 Conclusions This chapter contains sections ...
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Delta-Sigma Modulators - Modeling, Design and Applications
2003George I Bourdopoulos +3 more
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