This paper describes a method for reducing the common-mode voltage in seven-phase brushless DC motor (BLDC) drive. The conventional interleaved used three-phase inverter system is extended and applied. proposed phase-phase studied to apply six-phase excitation controlling BLDC. switching functions related with modulation index (MI) angle are obtained, average of derived mathematically. control ...

In this paper, the diagnosis of broken rotor bar (BRB) is investigated analytically and experimentally based on induction motors (IM) with variable speed drives (VSD). The analysis of the VSD process has understood that the sensorless control mode adjusts both supply voltage and current in order to maintain the operating speed within high accuracy. It means that any asymmetric problems with the...

The digitally controlled current conveyor has been used to realize a novel digitally controlled reconfigurable continuous time voltage mode first order multifunctional filter. The realized filter can provide first order voltage mode low pass, high pass and all pass responses. The pole frequency of the continuous time filter is directly proportional to an n-bit digital control word. The realized...

a high accurate and low-voltage analog cmos current divider which operates with a single power supply voltage is designed in 0.18µm cmos standard technology. the proposed divider uses a differential amplifier and transistor in triode region in order to perform the division. the proposed divider is modeled with neural network while tlbo algorithm is used to optimize it. the proposed optimization...

The widespread integration of photovoltaic (PV) units may result in a number of operational issues for the utility distribution system. The advances in smart-grid technologies with better communication and control capabilities may help to mitigate these challenges. The objective of this paper is to evaluate multiple voltage control methods and compare their effectiveness in mitigating the impac...

This paper proposes a simple carrier based Hybrid active zero state pulse width modulation (HAZSPWM) Algorithm (HPWM) which is capable of reducing the common mode voltage produced by the Pulsewidth Modulation (PWM) Inverter fed vector controlled induction motor drive. The classical vector controlled algorithm gives variable switching frequency operation and increased harmonic distortion due to ...

Abstract- A novel low-voltage two-stage operational amplifier employing resistive biasing is presented. This amplifier implements neutralization and correction common mode stability in second stage while employs capacitive dc level shifter and coupling between two stages. The structure reduces the power consumption and increases output voltage swing. The compensation is performed by simple mill...