the use of renewable energy in power generation and sudden changes in load and fault in power transmission lines  may cause a voltage drop in the system and challenge the reliability of the system. one way to compensate the changing nature of renewable energies in the short term without the need to disconnect loads or turn on other plants, is the use of renewable energy storage. the use of ener...

The transmembrane motor protein prestin is thought to underlie outer hair cell (OHC) motility. Prestin expressed in nonauditory cells confers OHC-like electrical characteristics to the cell membrane, including the generation of gating-like currents (or non-linear capacitance), whose voltage dependence is susceptible to membrane tension and initial voltage conditions. Here we report that prestin...

Direct current (DC)-link voltage ripple analysis is essential for determining harmonic noise and for DC-link capacitor design and selection in single-phase pulse-width modulation (PWM) inverters. This paper provides an extensive theoretical analysis of DC-link voltage ripple for full-bridge (H-bridge) inverters, with simulation and experimental verifications, considering a DC source impedance (...

For the diode circuits shown in Figure 1, consider the diodes to be ideal. The input voltage vI given to the circuit is a sinusoid with a peak value of 6V and frequency 2kHz. For each circuit (a) Derive the expression for the transfer characteristic vO versus vI for the circuit. (b) Plot the transfer characteristic vO versus vI indicating the values of all significant points and the values of t...

A new precision peak detector/full-wave rectifier of input sinusoidal signals, based on usage of dual-output current conveyors, is presented in this paper. The circuit gives a DC output voltage that is the peak input voltage over a wide frequency range, with a very low ripple voltage and low harmonic distortion. The proposed circuits use an all-pass filter as a 90 ̊ phase shifter of the processe...

A new experimental SXGA liquid-crystalon-silicon reflective projection light valve is described. It incorporates a novel inversion scheme, the bootstrapped pixel method, which extends the available pixel voltage range with lower applied voltages from the external data driver. This can enable the use of liquid crystal modes and performance-enhancing pixel structures which increase the pixel volt...

For CMOS technology of 65 nm and beyond, the gate leakage current can not be negligible anymore. In this paper, the impact of the gate leakage current in ring voltage-controlled oscillator (VCO) on phaselocked loop (PLL) is analyzed and modeled. A voltage -to-voltage (V-to-V) circuit is proposed to reduce the voltage ripple on Vctrl induced by the gate leakage current. The side effects induced ...

To lower the operating voltage and improve the output performance of piezoelectric actuators, a multilayer monolithic ultrasonic linear piezoelectric actuator was analyzed with the method of finite element analysis (FEA), and a prototype was fabricated and experimentally researched in this study. Experimental results show that the actuator with a multilayer piezoelectric lead zirconate titanate...

The conventional sine wave oscillator circuits use phase shifting techniques that RC phase shift oscillator using op-amp in inverting amplifier introduces. Figure show a RC phase shift oscillator using Op-Amp with gain 5(Vo/Vi). My assumption : Circuit is generating a sine wave with a peak to peak voltage of 10v. Voltage stability, specifically the lack of, when using a resister divider is the ...

This paper describes two methods for the reduction of the peak input current during the boosting of Dickson charge pumps. One of the methods is implemented in the fully integrated Dickson charge pumps of a high-voltage display driver chip for smart-card applications. Experimental results reveal good correspondence with Spice simulations and show a reduction of the peak input current by a factor...