Since the early 1900s, single series diode rectifiers have long been used in amplitude modulation signal detection. One may think that their design theory is already well matured. Let us check and see if true.

This paper proposes a novel soft-switching singlephase ac–dc–ac converter to give high input power factor and low current distortion on the rectifier side and provide clean and stable ac voltage on the inverter side. The proposed converter uses a new zero voltage switching (ZVS) strategy to get ZVS function. Besides operating at constant frequency, all semiconductor devices operate at soft-swit...

Meenakumari.S Department of Electrical and Electronics Engineering,Er.Perumal Manimekalai College of Engineering, Hosur, India Abstract— In this project, a near-unity-power-factor front-end rectifier employing two current control methods, namely, average current control and hysteresis current control, is considered. This rectifier is interfaced with a fixed-pitch wind turbine driving a permanen...

The K(+) channel expression pattern of microglia strongly depends on the cells' microenvironment and has been recognized as a sensitive marker of the cells' functional state. While numerous studies have been performed on microglia in vitro, our knowledge about microglial K(+) channels and their regulation in vivo is limited. Here, we have investigated K(+) currents of microglia in striatum, neo...

Hyperthyroidism has been associated with atrial fibrillation (AF), however, hyperthyroidism induced ion channel changes which may predispose to AF have not been fully elucidated. To understand the electrophysiological changes occurring in left and right atrium with hyperthyroidism, the patch-clamp technique was utilized to compare action potential duration (APD) and whole cell currents in myocy...

An input/output feedback linearization control strategy is developed for control of three-level three-phase neutral-point-clamped rectifier using its dual Lagrangian modeling. The load current of the rectifier can be given in two forms: (i) the load current involving the current of capacitor C1 (ii) the load current involving the current of capacitor C2. Applying the obtained load current to th...

Abstract To improve the efficiency of wireless power transfer (WPT) systems, this paper proposes a bilateral perturbation and observation method for WPT systems based on resonant modular three-level topology. This uses duty cycle rectifier to control output voltage, optimizes reactive in primary secondary sides by disturbing phase difference between input voltage current rectifier, achieves imp...

accurate modeling of the wind energy conversion system is necessary to design and implementation of the control loop for the generator and the frequency converter, in order to extract maximum power from the wind and to investigate the effects of interconnection between wind farms and power system. in this paper the combination of a permanent magnet synchronous generator loaded with a diode rect...