6,337 research outputs found
Audiomobiles, Sculptures and Conundrums
No full textRoberto Gerhard was a pioneer of electronic music in England creating a number of substantial concert, theatre and radio works from as early as 1954. Gerhard’s electronic music is one of the richest repositories for understanding the development of the composer’s late compositional technique. Apart from the Symphony no.3, ‘Collages’, none of Gerhard’s electronic music is published. This paper will discuss aspects of Gerhard’s electronic music, focusing on Audiomobiles (1958-59) and Sculptures (1963)
Ultralow-power adiabatic circuit semi-custom design
No full textThis brief shows that a conventional semi-custom design-flow based on a positive feedback adiabatic logic (PFAL) cell library allows any VLSI designer to design and verify complex adiabatic systems (e.g., arithmetic units) in a short time and easy way, thus, enjoying the energy reduction benefits of adiabatic logic. A family of semi-custom PFAL carry lookahead adders and parallel multipliers were designed in a 0.6-mum CMOS technology and verified. Post-layout simulations show that semi-custom adiabatic arithmetic units can save energy a factor 17 at 10 MHz and about 7 at 100 MHz, as compared to,a logically equivalent static CMOS implementation. The energy saving obtained is also better if compared to other custom adiabatic circuit realizations and maintains high values (3 divided by 6) even when the losses in power-clock generation are considered
LOW-NOISE AUTOMATED MEASUREMENT SYSTEM FOR LOW-FREQUENCY CURRENT FLUCTUATIONS IN THIN-OXIDE SILICON STRUCTURES
No full textThis paper describes the design of an automated system for low-noise measurement of low-frequency current fluctuations in thin-oxide silicon devices. The aim of these measurements is to study the current tunneling through the oxide, and to investigate its correlation with the oxide breakdown. The dedicated system is realized by integrating a personal computer commercial acquisition board with custom designed low-noise preamplifiers
CMOS dynamic ternary circuit with full logic swing and zero-static power consumption
No full textA new dynamic circuit scheme to realise ternary logic is presented. The main properties are the use of the standard CMOS process without any modification of the thresholds, the minimum possible number of external voltage levels (three), the highest possible logic swing and noise margins and the absence of static power consumption
FPGA Implementation of the Mix Algorithm for State-of-Charge Estimation of Lithium-Ion Batteries
No full textThis paper describes the hardware implementation of a model-based State-of-Charge (SoC) estimation algorithm for Lithium-ion batteries. SoC estimation is essential to evaluate the remaining runtime of the battery, as well as to enhance its safety and life expectancy. Model-based SoC estimation is a good solution to the problem, but only offline tests have been presented so far. In this work, the SoC estimation algorithm is implemented on an FPGA device, following an innovative and automatic development flow, which starts from a MATLAB/Simulink model of the algorithm. The SoC estimation hardware block is combined with a soft-core processor to form a System on a Programmable Chip. Experimental results obtained exerting the battery with a current profile that simulates its operation in an electric vehicle are presented and discussed
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