Results 261 to 270 of about 2,592,786 (293)
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Bulk-viscosity-driven asymmetric inflationary universe
Physical Review D, 1988A primordial net bosonic charge is introduced in the context of the bulk-viscosity-driven inflationary models. The analysis is carried through a macroscopic point of view in the framework of the casual thermodynamic theory. The conditions for having exponential and generalized inflation are obtained. A phenomenological expression for the bulk-viscosity
, Lima, , Portugal, , Waga
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Bulk-Driven Current Differencing Transconductance Amplifier
Circuits, Systems, and Signal Processing, 2011Low-voltage (LV) low-power (LP) integrated circuit design is becoming a leading trend in VLSI technology, particularly in special portable applications. In this paper, the principle of a bulk-driven MOS transistor is employed in the design of a novel LV LP current differencing transconductance amplifier (CDTA).
Fabian Khateb, Dalibor Biolek
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Linearity Improvement of Bulk Driven Floating Gate OTA Using Cross-Bulk and Quasi-Bulk Techniques
Journal of Circuits, Systems and Computers, 2020In this paper, two highly linear OTAs are presented using a combination of three linearization techniques: floating gate, bulk driven, and source degeneration. In the first OTA, bulk driven floating gate MOSFETs are used as input transistors. The input signal given at the bulk terminals of these input transistors are in the opposite phase of the input
Tanmay Dubey, Vijaya Bhadauria
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Intercalation‐Driven Reversible Control of Magnetism in Bulk Ferromagnets
Advanced Materials, 2014An extension in magnetoelectric effects is proposed to include reversible chemistry-controlled magnetization variations. This ion-intercalation-driven magnetic control can be fully reversible and pertinent to bulk material volumes. The concept is demonstrated for ferromagnetic iron oxide where the intercalated lithium ions cause valence change and ...
Dasgupta, S. +6 more
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Bulk flow driven by a viscous monolayer
Journal of Fluid Mechanics, 2015The flow in the bulk driven by a viscous interfacial film set in motion by a rotating sharp circular knife edge has been examined through experiments and computations. In the experiments, the water surface is covered by an insoluble monomolecular film of dipalmitoylphosphatidylcholine (DPPC), a molecule of wide interest in biology and medicine.
Raghunandan, Aditya +2 more
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Low-voltage bulk-driven mixer with on-chip balun
2008 IEEE International Symposium on Circuits and Systems (ISCAS), 2008The design and simulation of a pair of bulk-driven low-voltage down-conversion mixers with on-chip transformer baluns is presented. The addition of a passive balun improves gain and can provide impedance matching for optional off-chip image-reject filters.
Daryl Van Vorst, Shahriar Mirabbasi
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0.4-V bulk-driven differential-difference amplifier
Microelectronics Journal, 2015A new solution for an ultra-low-voltage, low-power, bulk-driven fully differential-difference amplifier (FDDA) is presented in the paper. Simulated performance of the overall FDDA for a 50nm CMOS process and supply voltage of 0.4V, shows dissipation power of 31.8µW, the open loop voltage gain of 58.6dB and the gain-bandwidth product (GBW) of 2.3MHz for
Tomasz Kulej, Fabian Khateb
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A low voltage bulk driven downconversion mixer core
ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349), 2003This paper describes a CMOS mixer core, operating at 1 GHz, where the RF signal is input via the bulk. The advantages of a bulk driven mixer are low power supply voltages and low power consumption. Simulations have confirmed that a power supply as low as 1 V can be used to power the mixer core, which drains approximately 1.6 mA. Although the mixer core
Ganesh Kathiresan, Christofer Toumazou
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Extremely Low-Voltage Bulk-Driven Tunable Transconductor
Circuits, Systems, and Signal Processing, 2016A design solution for bulk-driven tunable transconductor capable of working under extremely low supply/consumption with rail-to-rail input common-mode range is presented in this work. The proposed transconductor topology consists of six bulk-driven CMOS inverters, and it uses a very simple biasing circuit for the transconductance tuning.
Fabian Khateb +2 more
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A 0.5-V Bulk-Driven Active Voltage Attenuator
Circuits, Systems, and Signal Processing, 2019In this work, a novel differential active voltage attenuator that is capable of operating under low supply voltage and power consumption is presented. The proposed attenuator is based on bulk-driven MOS devices. Thanks to the use of the fully balanced differential structure, the attenuator demonstrates improved common-mode rejection capability.
Spyridon Vlassis +3 more
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