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Delta-Sigma Modulator based multiplier

2009
*
IEICE Electronics Express
*

Out of the two signals, one signal is fed to the input of typical second order, ΔΣ

doi:10.1587/elex.6.322
fatcat:bpqpymfhrfeg5kwm67ezaiqrby
*Modulator*(DSM). ... The dynamic range of input signals and the accuracy of proposed*multiplier*are better than the conventional CMOS*multipliers*. ... Simulation The software, MATLAB is used to simulate the proposed DSM*based**multiplier*. ...##
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A multiplier-free digital sinusoid generator based on sigma-delta modulation

1996
*
IEEE transactions on circuits and systems - 2, Analog and digital signal processing
*

In this paper

doi:10.1109/82.494389
fatcat:uwlds2v52vco5ek7rjalu56bay
*sigma*-*delta*(%A) sequences derived from a single-loop numeric E-A*modulator*with sinusoidal input are investigated. ... If constant F i s an integer, the operation of the oscillator is exclusively*based*aln integers. ... However, the multibit-*multiplier*is replaced by a*sigma*-*delta*( E A )*modulator*, which is incorporated between the integrators. ...##
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Largely-Reduced Switching Noise Buck Type DC/DC Converter Embedding A Novel Delta-Sigma Modulation Control Scheme with White Noise Sequence

ホワイトノイズ乗算器を持つ新ΔΣ変調制御方式低スイッチングノイズ非絶縁降圧形DC-DC コンバータ

2016
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Journal of the Japan Institute of Power Electronics
*

ホワイトノイズ乗算器を持つ新ΔΣ変調制御方式低スイッチングノイズ非絶縁降圧形DC-DC コンバータ

The novel type

doi:10.5416/jipe.42.80
fatcat:3nsiwy65qfhw7ae7aczdwmznxi
*delta*-*sigma**modulator*which consists of the prototype*delta*-*sigma**modulator*and white noise-*based**multiplier*is demonstrated specifically for this DC/DC converter. ... キーワード:非絶縁降圧形 DC-DC コンバータ,プロトタイプΔ∑変調器,ホワイトノイズベース乗算器,新Δ∑変調器,PWM 制 御,スイッチングノイズピーク成分抑制,出力電圧制御 Keywords:non-isolated step-down (buck) DC/DC converter, prototype*delta*-*sigma**modulator*, white noise-*based**multiplier*...*delta*-*sigma**modulator*; (d) PWM. ...##
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Hardware-Efficient Delta Sigma-Based Digital Signal Processing Circuits for the Internet-of-Things

2015
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Journal of Low Power Electronics and Applications
*

The counter-

doi:10.3390/jlpea5040234
fatcat:jzwp4yrkbvcj7faehcvhobmiwa
*based*average adder can work with both first-order and higher-order*Delta**Sigma**modulators*and can also be used as a coefficient*multiplier*. ...*Based*on these methods, we develop*Delta**Sigma*domain on-the-fly digital signal-processing circuits: the*Delta**Sigma*sum adder, average adder and coefficient*multiplier*. ...*Based*on the digital*Delta**Sigma**modulator*method and the proposed P-N (positive-negative) pair method with a signed binary counter, we design the*Delta**Sigma*sum adder, average adder and coefficient*multiplier*...##
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Arbitrary-precision signal generation for mixed-signal built-in-self-test

1998
*
IEEE transactions on circuits and systems - 2, Analog and digital signal processing
*

MULTIPLIERLESS HIGH-ORDER

doi:10.1109/82.735354
fatcat:75v5df73evgrtj6uxycjpgvuja
*DELTA*-*SIGMA**MODULATOR*The*delta*-*sigma**modulators*used in this work are*multiplier*-free 1-bit high-order digital*delta*-*sigma**modulators*specifically tailored for use in*delta*-*sigma*... CONCLUSION High-order*delta*-*sigma**modulation*-*based*analog signal generation has been shown to be feasible, both with respect to issues of stability and of hardware cost. ...##
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Sigma-Delta Modulation Based Digital Filter Design Techniques in FPGA

2012
*
ISRN Electronics
*

In this paper efficient digital filter design techniques categorized as

doi:10.5402/2012/538597
fatcat:lk6lven3s5bubcqt2oylsfri6i
*sigma*-*delta**modulation**based*short word length (SWL) and multibit (or contemporary) techniques are reviewed in terms of hardware ... A small number of basic arithmetic circuits designed using*sigma*-*delta**modulation*encoding and synthesized by using FPGAs are also described. ... More recently*sigma*-*delta**modulation**based*bit-stream adder and*multiplier**modules*have been described in [29, 30] . ...##
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Adaptive sigma-delta modulation with one-bit quantization

2000
*
IEEE transactions on circuits and systems - 2, Analog and digital signal processing
*

The approach is basically suited for a wide class of

doi:10.1109/82.842109
fatcat:xnlzwaxtqrar3muqmgvzg6ep2q
*sigma*-*delta**modulators*. ... A method for improving the signal-to-noise ratio (SNR) of*sigma*-*delta**modulators*with one-bit quantization is presented. ... Thus, this noise (*multiplied*by ) is directly added to the input signal and enhances the noise energy in the*base*band. ...##
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Reduced switching noise Dc-Dc converter applied improve switch control modulation method

2014
*
2014 9th IEEE Conference on Industrial Electronics and Applications
*

This paper proposes a dc-dc converter introduces improved

doi:10.1109/iciea.2014.6931367
fatcat:wyl7ugoewfejtgnmxe7dtp7gja
*delta**sigma**modulation*circuit, and examine the switching noise compo nent. ... When deIta-*sigma**modulation*technique is used for power converter, this problem does not occur. Still the same problem arises in the case of dc-dc converter. ...*DELTA*-*SIGMA**MODULATION*CIRCUITIn this paper a new method*based*on*delta*-*sigma**modulation*circuit, andFig. 1 represents the block diagram of*delta*-*sigma**modulation*circuit. ...##
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Stability and performance analysis of an adaptive sigma-delta modulator

2001
*
IEEE transactions on circuits and systems - 2, Analog and digital signal processing
*

This work develops an adaptive

doi:10.1109/82.924066
fatcat:3zickg37izbc5pz2bexpbruybe
*sigma*-*delta**modulator*that is*based*on adapting the quantizer step-size using estimates of the quantizer input rather than the*modulator*input. ... The adaptive*modulator*with a first-order noise shaping filter is shown to be bounded-input bounded-output stable. ... Adaptive*Sigma*-*Delta**Modulation*Adaptive*sigma*-*delta**modulation*(ASDM) attempts to increase the dynamic range of*sigma*-*delta**modulators*while keeping the quantization noise as low as possible. ...##
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Sigma-delta receive beamformer based on cascaded reconstruction for ultrasound imaging application

2008
*
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
*

A higher order

doi:10.1109/tuffc.885
pmid:18986890
fatcat:p2e64dewdrhshdmpxombr6ooie
*sigma*-*delta**modulator*provides better bit resolution, but a 2nd-order*sigma*-*delta**modulator*was used because any single bit*sigma*-*delta**modulator*higher than 2nd order is not inherently ... Fig. 6 . 6 Cascaded reconstruction of a*sigma*-*delta**modulated*bit stream. Fig. 7 . 7 Block diagram of an SDBF*based*on cascaded reconstruction. ... He was with GEC Traction Pte Ltd (UK) from 1978 to 1980 as an engineer working on microprocessor-*based*automatic test systems. ...##
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Sigma-Delta Receive Beamformer Based on Cascaded Reconstruction for Ultrasound Imaging Application

2009
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2009 3rd International Conference on Bioinformatics and Biomedical Engineering
*

A higher order

doi:10.1109/icbbe.2009.5163384
fatcat:7kjh5bfdhvdiba3sudzfegqkmi
*sigma*-*delta**modulator*provides better bit resolution, but a 2nd-order*sigma*-*delta**modulator*was used because any single bit*sigma*-*delta**modulator*higher than 2nd order is not inherently ... Fig. 6 . 6 Cascaded reconstruction of a*sigma*-*delta**modulated*bit stream. Fig. 7 . 7 Block diagram of an SDBF*based*on cascaded reconstruction. ... He was with GEC Traction Pte Ltd (UK) from 1978 to 1980 as an engineer working on microprocessor-*based*automatic test systems. ...##
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FPGA signal processing using sigma-delta modulation

2000
*
IEEE Signal Processing Magazine
*

The Σ∆ data re-quantizer is

doi:10.1109/79.814644
fatcat:lrpqlcfls5aobemocwpckgyovq
*based*on a single loop error feedback*sigma*-*delta**modulator*[l] shown in Figure 9 . ... loop*sigma*-*delta**modulator*noise transfer function. ...##
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Sigma-Delta Modulator Design and Analysis for Audio Application

English

2015
*
International Journal of Engineering Trends and Technoloy
*

English

In this design continuous time

doi:10.14445/22315381/ijett-v30p244
fatcat:mcequokudrd5tpfsx3qxmifr6i
*sigma*-*delta**modulator*is implemented to reduce the noise problem. This*sigma*-*delta**modulator*also helps to reduce power consumption of circuit. ... Circuit design an 11bit low power*sigma*-*delta**modulator*for digital audio application is given, using a single bit quantizer. ...*Sigma*-*delta**Modulators*employing only one quantizer are called single-loop topologies, whereas those employing several quantizer are often named cascade or MASH*Sigma*-*delta**Modulators*. 2. ...##
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New 2 2 Sigma Delta Modulators for Different Applications

2021
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International journal of recent technology and engineering
*

This work presents the design of a new 2-2 programmable

doi:10.35940/ijrte.d6629.1110421
fatcat:mqwibscofbc33hnfuvlfut3v5i
*sigma**delta**modulator*architecture, for different applications, this transformation design of the ΣΔ*modulator*low-pass, band-pass and high-pass ... The simulation result for*sigma**delta**modulator*for biomedical applications exhibit a signal to noise ratio is 95 dB @ 250Hz bandwidth and a 75dB @ 200KHz ,85dB @1MHz for pass band*modulator*. ... Figure 5 : 5 Figure 5: Spectrum of pass -Band*sigma**delta**modulator*. II.3. ...##
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A continuous time sigma delta modulator with operational floating integrator

2012
*
CAS 2012 (International Semiconductor Conference)
*

This paper presents a new circuit realization for current mode continuous time

doi:10.1109/smicnd.2012.6400729
fatcat:axsxfmblcrcxdfvyhbbzie5nwa
*sigma**delta**modulator*. ... In this*sigma**delta*convertor for implementation of integrators in loop filter, operational floating conveyors are employed. ... The bit resolution of proposed*modulator*is 9bit. CONCLUSIONS A new second order continuous time*sigma*-*delta**modulator**based*on operational floating conveyors is presented. ...
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