This studyaimed at improving the performance and efficiency of conventional static photovoltaic (PV) systems by introducing a metaheuristic algorithm-based approach that involves reconfiguring electrical wiring using switches under different shading profiles. Themetaheuristicalgorithmused wasthe firefly algorithm (FA), which controls switching patterns non-homogenous profiles tracks highest glo...

Multibit digital-to-analog converters (DACs) are often constructed by combining several 1-bit DACs of equal or different weights in parallel. In such DACs, component mismatches give rise to signal dependent error that can be viewed as additive DAC noise. In some cases these DACs use dynamic element matching techniques to decorrelate the DAC mismatch noise from the input sequence and suppress it...

Modern signal processing applications emerging in telecommunication and instrumentation industries need high-speed analog-to-digital converters (ADCs), which can be achieved by employing a time-interleaved parallel array of ADCs (time-interleaved ADCs). The time interleaving of the channels allows to increase the sampling rate by the number of channels compared to a single channel. Unfortunatel...

Dynamic current and transition energy unbalance resulting from parameter mismatch between parallel MOSFET branches are mapped over wide operating ranges. Unbalance generator magnitudes are given for HEXFET Power MOSFET data sheet ant typical production batch extremes. Limit functions are defined for unbalance due to ON resistance, gain and threshold voltage mismatch. Q loci are utilized for map...

Multiplying delay-locked loops (MDLLs) are gaining popularity due to their superior noise performance over conventional phase-locked loops (PLLs) [1,2]. Recent designs are trending towards an all-digital implementation that provides advantages such as compact area, good scalability and low power compared to traditional analog implementations. Achieving fractional frequency multiplication is, ho...

The first observation of parametric down-conversion in silicon is reported. Conversion from 1542.3nm to 1328.8nm is achieved using a CW pump laser at 1427 nm. The conversion occurs via Coherent Anti-Stokes Raman Scattering (CARS) in which two pump photons and one Stokes photon couple through a zone-center optical phonon to an anti-Stokes photon. The maximum measured Stokes/anti-Stokes power con...

High-frequency (HF) band wireless power transfer systems offer the promise of cutting the last cord, allowing users to seamlessly recharge mobile devices as easily as wireless communication. Yet there are still many technical issues that need to be overcome. Among them, one of the most difficult problems is maintaining impedance match over a short range, where the distance between a transmitter...

Load mismatch often occurs in radio frequency (RF) power amplifiers (PAs) handset, which can complicate the nonlinear behavior of transmitter, particularly when voltage standing wave ratio (VSWR) is high. To effectively linearize handset PAs with load mismatch, this article, we propose a low-complexity digital predistortion (DPD) model. After carefully analyzing characteristics transmitters wav...

A low power content addressable memory is designed by the pre-comparison scheme, power gating and dual-VED techniques. With the pre-comparison scheme, it will reduce the discharging time and power consumption when the match line is mismatch. Furthermore, the techniques of power gating and dual VDD are applied to the pre-comparison CAM to reduce the leakage power. The size of the CAM array is ab...