— This paper presents a magnetic circuit modeling of closed loop Hall-effect current sensors based on a magnetic equivalent circuit which could be simulated with a circuit type simulator software (PSPICE model). First, the principle of measurement of the closed loop Hall-effect current sensors is presented, Then, the magnetic equivalent circuit (MEC) modeling justified by the engineers' model n...

The interaction of capacitive and resistive nonlinearities in the Chua’s circuit is studied. The original Chua’s circuit is modified by replacing one of the linear capacitors with a nonlinear one to investigate the effects of such an interaction on the chaotic behavior of the circuit. It is found that such an interaction can be effective in limiting and controlling chaos. The Pspice simulation ...

A CMOS realization of the current-feedback differential difference amplifier (CFDDA) is proposed. The CFDDA circuit is realized using a wide input range dependent load transconductor (DTA) with three independent input voltages and a rail to rail classAB voltage buffer. The CFDDA circuit is used to realize a MOS-C oscillator suitable for VLSI. PSpice simulation results for the CFDDA circuit and ...

This paper addresses the use of Analog Behavioral Models (ABMs) in an efficient strategy for designing analog emulation engines for large scale power system computation. Through discussion of historical development of analog computation in power system analysis and its present resurgence, we present the need for, and application of ABMs for model verification and validation prior to full struct...

A WO dimensional. 16-electrode Electrical Impedance Tomography (EIT) system has been simulated using PSPICE to determine whether EIT can be used as a screening technique for early breast cancer detection. Simulation results show that a tumor of area of 1% of the cross-sectional breast model area produces more than 4% variation in the voltage magnitude at the surface electrodes when compared to ...

In this paper, we propose a design of a current controlled Quadrature Sinusoidal Oscillator. The proposed circuit employs three optimized Multi-output translinear second generation current conveyer (MCCII). The oscillation condition and the oscillation frequency are independently controllable. The proposed Quadrature Oscillator frequency can be tuned in the range of [198 261 MHz] by a simple va...

The evaluation of response time of a constant temperature thermoresistive sensor based feedback circuit, excited by a pulsewidth modulated (PWM) waveform is done by a way of simulation studies in PSPICE environment and compared with that of a circuit excited by an analog voltage (continuous time domain). For a thermoresistive sensor with an intrinsic time constant much larger than the period of...

This article reviews 2 circuits, which are electronically controllable active-only floating positive and negative inductance simulators. Each floating inductance simulator comprises merely one operational amplifier (OA) and one current conveyer transconductace amplifier (CCTA). The simulated inductance values can be controlled electronically by adjusting bias current of the CCTA. The circuit pe...

Although memristive devices with threshold voltages are the norm rather than the exception in experimentally realizable systems, their SPICE programming is not yet common. Here, we show how to implement such systems in the SPICE environment. Specifically, we present SPICE models of a popular voltage-controlled memristive system specified by five different parameters for PSPICE and NGSPICE circu...

In this paper, a digitally programmable single input multi-output voltage mode multifunctional biquadratic filter has been presented. The circuit employs three differential voltage current conveyors (DVCC), two grounded capacitors, two grounded and two floating resistors. The digital re-configurability is obtained using a current-summing network (CSN). Cut-off frequency is controlled and varied...