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This paper proposes a novel analysis method for the dual transmitting resonators wireless power transfer (DTR-WPT) system. The DTR-WPT is attractive for its higher efficiency and greater power transfer capability compared with the conventional single transmitting resonator wireless power transfer (STR-WPT) system. However, analytical understanding of the DTR-WPT is difficult due to its complicated...
An analog-to-digital converter (ADC) is an essential device in mixed mode systems. The performance of the ADC, however, is deteriorated by coupled power supply noises through hierarchical chip-PCB power distributed networks (PDNs). In order to design a high-performance system, modeling and analysis of power supply noise effects on the ADC are necessary, as the power supply noise is coupled to the...
Power electronic circuits have traditionally been based on magnetic technology. The transformers and inductors in conventional converters are usually bulky compared to other elements. In an effort to miniaturize power components a piezoelectric, rather than a magnetic transformer could be employed in the power supplies. A single-branch equivalent circuit model can characterize all types of piezoelectric...
For mobile back-lighting applications, a switched-capacitor-based serial DC-DC converter using solar power supplies is proposed in this paper. Unlike conventional switched-capacitor DC-DC converters, the proposed converter pushes up the output voltage of a switched-capacitor-based circuit by the voltage of solar cells. For this reason, the proposed converter can realize not only long battery runtime...
This document presents a compilation of results from tests performed by iRoC Technologies on SER induced by alpha particles on SRAM memories for technology nodes from 180 nm to 65 nm. The aim of this study is to establish the variation of sensitivity with technology node for SEU and MCU, and to analyze the possible influence of different designs and technological parameters at a given technology node.
This paper presents a new realization of a low-voltage, high-performance CMOS current-differencing buffered amplifier (CDBA). The proposed circuit can be operated with the power supplies down to plusmn0.75 V and it also consumes less power than its counterparts that have been reported so far. Moreover this CDBA has good voltage and current accuracies. UMC 0.18 mum CMOS technology is used for the simulations...
In this paper, the effect of power supply noise imbalance on 900 MHz differential low noise amplifier (LNA) output is investigated. Chip and package (PKG) power distribution network (PDN) are modeled with lumped components to estimate the power supply noise imbalance. Also an equivalent circuit of differential LNA is modeled to estimate the noise voltage at differential LNA output and verified through...
A thin film optoelectric transformer consisting of a p-n junction photocell (500??500 ??m2) and a multilayer spiral coil transformer (1.4??1.4 mm2), monolithically fabricated on a Si substrate, is proposed, and its fundamental characteristics are described. The optical power from a layer diode (LD) is converted into electric power by the photocell, and the photocurrent is then converted into an output...
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