A Scan-Based Lower-Power Testing Architecture for Modern Circuits

Abstract High optical power is considered as the source of failures in passive optical elements. Optical connectors, in particular, have been studied because of the unavoidable exposure of their optical interfaces to environmental issues during insertion and extraction. Cleaning and insertion/extraction procedures are investigated. Evidence for burn-out, depending on the different procedures, calls for new suitable rules for handling during equipment operation and testing.

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Simulation of Self-Consumption Photovoltaic Installations: Profitability Thresholds

Applied Sciences ◽

10.3390/app11146517 ◽

2021 ◽

Vol 11 (14) ◽

pp. 6517

Author(s):

Marta Varo-Martínez ◽

Luis Manuel Fernández-Ahumada ◽

Rafael López-Luque ◽

José Ramírez-Faz

Keyword(s):

Systematic Study ◽

Peak Power ◽

Net Present Value ◽

Energy Model ◽

Present Value ◽

Lower Power ◽

Design Variables ◽

Sunshine Hours ◽

Optimal Value ◽

Renewable Technology

PV self-consumption can contribute positively to the spread of PV and, therefore, to the progress of renewable energies as a key element in a decarbonized energy model. However, the policies of each country regarding the promotion of this type of renewable technology is fundamental for their growth. Despite the high number of sunshine hours registered in Spain, self-consumption in this country has not been authorized until recently. In this new context, this work presents a systematic study of the profitability limits of a self-consumption PV installation under different conditions of installed peak power, orientation and inclination of the PV panels and level of obstruction of the installation. It was proved that, for the case of study (Córdoba, Spain), the maximum profitability was achieved for PV panels oriented to the south and with an inclination of 15° whereas the most unfavourable conditions are those of PV panels with an orientation and inclination of 180° and 90°, respectively. Furthermore, when the level of obstruction increases the maximum of the Net Present Value of self-consumptions PV installations decreases and this optimal value is achieved for installations with lower power. Finally, empirical adjustment equations have been developed to estimate the profitability parameters of self-consumptions PV installations as a function of their design variables.

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Development and high-power testing of an X -band dielectric-loaded power extractor

Physical Review Accelerators and Beams ◽

10.1103/physrevaccelbeams.23.011301 ◽

2020 ◽

Vol 23 (1) ◽

Cited By ~ 2

Author(s):

Jiahang Shao ◽

Chunguang Jing ◽

Eric Wisniewski ◽

Gwanghui Ha ◽

Manoel Conde ◽

...

Keyword(s):

High Power ◽

X Band ◽

Power Testing

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Dichotomization, Partial Correlation, and Conditional Independence

Journal of Educational and Behavioral Statistics ◽

10.3102/10769986021003264 ◽

1996 ◽

Vol 21 (3) ◽

pp. 264-282 ◽

Cited By ~ 37

Author(s):

András Vargha ◽

Tamás Rudas ◽

Harold D. Delaney ◽

Scott E. Maxwell

Keyword(s):

Conditional Independence ◽

Partial Correlation ◽

Statistical Significance ◽

Conventional Wisdom ◽

Predictor Variables ◽

Lower Power ◽

Partial Correlations ◽

Current Article ◽

The Difference ◽

The Relationship

It was recently demonstrated that performing median splits on both of two predictor variables could sometimes result in spurious statistical significance instead of lower power. Not only is the conventional wisdom that dichotomization always lowers power incorrect, but the current article further demonstrates that inflation of apparent effects can also occur in certain cases where only one of two predictor variables is dichotomized. In addition, we show that previously published formulas claiming that correlations are necessarily reduced by bivariate dichotomization are incorrect. While the magnitude of the difference between the correct and incorrect formulas is not great for small or moderate correlations, it is important to correct the misunderstanding of partial correlations that led to the error in the previous derivations. This is done by considering the relationship between partial correlation and conditional independence in the context of dichotomized predictor variables.

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Deterministic ATPG for Low Capture Power Testing

2012 13th International Workshop on Microprocessor Test and Verification (MTV) ◽

10.1109/mtv.2012.14 ◽

2012 ◽

Cited By ~ 2

Author(s):

Lung-Jen Lee ◽

Chia-Cheng He ◽

Wang-Dauh Tseng

Keyword(s):

Power Testing

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High-Power Operation of Acoustic-Electric Power Feedthroughs Through Thick Metallic Barriers

Volume 12: Vibration, Acoustics and Wave Propagation ◽

10.1115/imece2012-89496 ◽

2012 ◽

Cited By ~ 1

Author(s):

K. R. Wilt ◽

H. A. Scarton ◽

G. J. Saulnier ◽

T. J. Lawry ◽

J. D. Ashdown

Keyword(s):

Power Density ◽

High Power ◽

Electrical Power ◽

Power Transfer ◽

Receive Transducer ◽

High Power Operation ◽

Linear Effects ◽

Power Limits ◽

Power Operation ◽

Power Testing

Throughout the last few years there has been a significant push to develop a means for the transmission of electrical power through solid metallic walls using ultrasonic means. The bulk of this effort has been focused on using two coaxially aligned piezoelectric transducers on opposite sides of a thick metallic transmission barrier, where one transducer serves as the “transmit” transducer and the other as the “receive” transducer. Previous modeling has predicted reasonably high power transfer efficiencies through the wall using this type of “acoustic-electric channel” to be possible at low power levels, which implies that channel component operates in a linear range with little concern of failure. High-power testing of two acoustic-electric channels has been done in an effort to determine power limits on such channels and to determine levels at which non-linear effects on the piezoelectrics become non-negligible. The tested channels are characterized by the “power density” imposed on the transmit transducer, that is, the power applied per unit area, as the values found for maximum power density are considered to be independent of transducer radii. The constructed channels are shown to be capable of transmitting large amounts of power (over 100 watts) without failure; and further, extrapolation of the results to channels with larger diameter transducers predicts power transfer of 1 kW to be highly feasible.

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A LOW-POWER AND HIGH-SPEED D FLIP-FLOP USING A SINGLE LATCH

Journal of Circuits System and Computers ◽

10.1142/s0218126602000239 ◽

2002 ◽

Vol 11 (01) ◽

pp. 51-55

Author(s):

ROBERT C. CHANG ◽

L.-C. HSU ◽

M.-C. SUN

Keyword(s):

Power Consumption ◽

Low Power ◽

Power Dissipation ◽

High Speed ◽

Operating Frequency ◽

Flip Flop ◽

Lower Power ◽

Simulation Results ◽

Hspice Simulation

A novel low-power and high-speed D flip-flop is presented in this letter. The flip-flop consists of a single low-power latch, which is controlled by a positive narrow pulse. Hence, fewer transistors are used and lower power consumption is achieved. HSPICE simulation results show that power dissipation of the proposed D flip-flop has been reduced up to 76%. The operating frequency of the flip-flop is also greatly increased.

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