نتایج جستجو برای: signal power
تعداد نتایج: 870184 فیلتر نتایج به سال:
Discussed is a circuit which measures and analyses power supply transients as defined in the test technique, Transient Signal Analysis (TSA). This circuit can replace the benchtop instrumentation and offline signal processing software used in previous work. The circuit accepts voltage transients as analog inputs from the Device-Under-Test (DUT), performs integration and outputs an analog value ...
This paper deals with the problem of classiication of non-stationary signals using signatures which are essentially independent of the signal length. We develop the notion of a separable approximation to the Continuous Wavelet Transform (CW T) and use it to deene a power signature. We present a simple technique which uses the Singular Value Decomposition (SV D) to compute such an approximation,...
Modem process control systems often employ accurate position or speed controlled PWM motors, which require feedback data for the drive control loop. Current methods require an independently shielded cable for feedback data transmission. This is due to the fact that high-voltage PWM signals could easily interfere with the feedback signals, which are typically one or more orders of magnitude smal...
In this article we present techniques to reduce power consumption in parallel processor arrays. The reduction is substantially reached by avoiding non-essential operations, i. e. operations that hardly contribute to the convergence of the considered algorithm. The presented approach is clarified on the basis of a parallel implementation of a Jacobi-like real eigenvalue decomposition (EVD) but s...
It is predicted that at the 90nm technolony node, leakage power will surpass dynamic power. This poses several challenges to high-speed circuit designers. By the same token, the complexity of low power, low operating frequency designs is threatened more and more by static power dissipation concerns. It has been recently shown that if energy per operation (EOP) is used as an optimization metric,...
The mathematical modelling of signal transduction pathways has become a valuable aid to understanding the complex interactions involved in intracellular signalling mechanisms. An important aspect of the mathematical modelling process is the selection of the model type and structure. Until recently, the convention has been to use a standard kinetic model, often with the Michaelis-Menten steady s...
In this paper, a high speed delay-locked loop (DLL) architecture ispresented which can be employed in high frequency applications. In order to design the new architecture, a new mixed structure is presented for phase detector (PD) and charge pump (CP) which canbe triggered by double edges of the input signals. In addition, the blind zone is removed due to the elimination of reset signal. Theref...
Power transformers are the most important components of a power system, so their protection is a critical issue. This paper proposes a novel and efficient algorithm based on the high-frequency components of the differential current signal to discriminate between the magnetizing inrush currents and the internal faults. After detecting the over-current in the differential current signals, samples...
Fuel cells directly convert chemical energy into electrical power using electrochemical reactions. Solid oxide fuel cell (SOFC) is one of the high-temperature fuel cells that propose a promising future from the standpoint of power generation. In this study, optimization of an SOFC system is performed using Taguchi approach after verification of the model in compare with experimental results. Cu...
applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...
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