Results 21 to 30 of about 59,486 (332)
Multiband sigma-delta modulation
Electronics Letters, 1993 A sigma-delta modulation architecture which breaks the signal band into smaller bands and uses a different band reject noise shaping transfer function per band is described. Operating at 1.024 MHz and 64 kHz signal bandwidth with 2nd order modulators, the resolution of the architecture is 4.5 bits higher than that of a standard 2nd order sigma delta ...
P. Aziz, H. Sorensen, J. van der Spiegel
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New pulse modulator with low switching frequency
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2014 The author presents an integrating pulse modulator (analogue signal converter) with the pulse frequency and duration modulation similar to sigma-delta modulation (with low switching frequency), without quantization.
V. S. Golub
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Bandpass sigma-delta modulation
Electronics Letters, 1989 A bandpass version of sigma-delta modulation is presented, with simulation results for second- and fourth-order convertors. For the fourth-order convertor operating at 8 MHz, simulations demonstrate a resolution of 16 bits over an 8 kHz band centred at 1 MHz.
R. Schreier, M. Snelgrove
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Digital calibration technique based AC injection for continuous‐time sigma‐delta converters
Electronics Letters, 2023 In this study, a digital calibration method applicable for a continuous‐time sigma‐delta analogue‐to‐digital converter is proposed using the AC injection technique.
Shengling Zhu, Lei Chen, Jie Su
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IEEE Transactions on Nuclear Science, 2019 We investigated a simple and effective method to extend 1-bit sigma-delta modulation (SDM) circuit-based charge-to-digital converter (QDC) to read dual-polarity silicon photomultiplier (SiPM) output signals.
Xinyi Cheng, K. Hu, Y. Shao
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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
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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
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ElectronicsThis article presents a new modulation technique called three-dimensional sigma–delta (3D-ΣΔ) modulation for high-frequency three-leg four-wire voltage source converters (VSCs) that use wide-bandgap (WBG) semiconductors.
David Lumbreras +4 more
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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
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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
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