Pyroelectric PbTiO3 thin films devices with two temperature compensating elements on a SiO2/Si3N4 membranes have been fabricated and characterized. The measured voltage responsivity as a function of radiation modulation frequency has been compared to finite element model calculation. The relevant film properties have been compared for sputter and a sol-gel deposition techniques. The calculated ...

A wide band voltage to current converter capable of compensating for parasitic impedances is presented. The circuit is analyzed and the transfer function is calculated and optimized. Output impedance calculation and noise analysis are also given for the best choice of circuit parameters. An application example is proposed and analyzed, full SPICE simulations and a breadboard proof of concept ci...

This paper presents application of fuzzy logic controller for shunt active power filter to improve power quality in the distribution systems. The main feature of fuzzy logic controller does not require any complex mathematical model of the systems to regulate dc bus capacitor voltage. The reference compensating current has been estimated by unit vector template generation technique. The actual ...

This paper presents four types of time domain control techniques for generation of real time compensating current with a view to the problem of source current harmonics caused by non-linear loads in three phase three wire shunt active filters. All the techniques are analyzed mathematically and simulation results are compared in terms of compensation performance with multi parameter under steady...

The soft-switching characteristics of double-sided LCC wireless power transmission systems are susceptible to system parameter disturbances. In order improve the stability zero voltage switches in constant-current and constant-voltage charging modes, this paper synthesizes eight resonant conditions which make realize constant-current/constant-voltage Zero Phase Angle. influence compensating cap...

This paper demonstrates the mitigation of power quality issues in a grid connected wind energy conversion system using UPFC. The procedure to compensate the power quality issues like voltage sag and harmonics are presented. A Frame work for 25 bus test system is developed in the ETAP & load flow analysis &harmonic analysis is performed. It is observed that the UPFC is effective in compensating ...

The problem of controlling three-phase, four-leg shunt active power filters (SAPF) is addressed in presence of nonlinear and/or unbalanced loads. A new control model for four-leg SAPF, taking into account for the electrical grid line impedance, is developed. The control objective is threefold: (i) compensating for the current harmonics and the reactive power absorbed by the nonlinear load; (ii)...

A Shunt Active Power Filter (SAPF) employable in a Low Voltage distribution grid four-wires model is presented. The use of this device helps to improve Power Quality compensating harmonic currents, reactive power and current unbalances of a disturbing loads. Each compensating function can be activated or disabled according to the specific requirements of the application. A selective harmonic co...

16 Abstract— This paper presents a technique for compensating process, voltage and temperature variations due to manufacturing and environmental variability in submicron circuits using canary flip-flop. This canary flip flop predicts the timing error before it actually occurs and compensate the performance so that the system performance does not get affected. I am going to design a 16-bit Brent...

This paper proposes using a liquid lens as a compensating lens and applying intermediate optics to achieve a 9× zoom ratio. The droplet shape and location of the liquid lens can be adjusted reversibly, enabling the focal length and position of the lens to be tuned by varying the voltage applied to a set of electrodes. Therefore, liquid lenses can replace complex lenses to reduce the total lengt...