A physical system, Low Pass Filter (LPF) RC Circuit, which serves as an impulse response and a square wave input signal are utilized to derive the continuous time convolution (convolution integrals). How set up limits of integration correctly how excitation source convolves with explained using graphical type solution. This in turn, help minimize students’ misconceptions about integral. Further...

A voltage-mode multifunctional biquadratic filter with three input terminals and single output terminal is presented. The proposed circuit is constructed using only one differential voltage current conveyor (DVCC) as active element and minimum number of passive elements, namely two resistors and two capacitors. The circuit can simultaneously realize all five different biquadratic filtering lowp...

Signal isolation is needed in power electronics systems that include separate primary and secondary ’grounds’. The feasibility of using a piezoelectric transformer (PT) as a galvanic barrier was investigated in this study theoretically and experimentally. The research included the issues of drive, demodulation, bandwidth, and common mode rejection. In particular, two types of excitation signals...

This article presents a current-mode quadrature oscillator. The proposed oscillator can provide 2 sinusoidal output currents with 90 0 phase difference. It also provides high output impedances that make the circuit able to directly drive load without additional current buffer. The condition of oscillation and frequency of oscillation can be controlled independently and electronically by adjusti...

VDII ~ I A new CMOS buffer is introduced. A compensation circuit is used to cancel the output voltage offset resulting from the body effect. The voltage offset cancellation is achieved over all the input range hence resulting in a highly linear voltage transfer gain, which is independent of process variation. Class AB output stage is used in order to minimize the power consumption and increase ...

This work is partially supported by US Office of Naval Research grant N00014-96-1-0926 Abstract The switching characteristics of 4H-SiC asymmetric GTO thyristors are studied and compared to Si based IGBTs, MCTs, and MOSFETs. Forward current density, turn-off time and forward blocking voltage parameters are matched for the various switching devices. From the measurements, the necessary parameter...

The current-mode quadrature oscillators using 2 current controlled current differencing transconductance amplifiers (CCCDTAs) and 2 grounded capacitors are presented. The proposed oscillators can provide 2 sinusoidal output currents with 90o phase difference. The oscillation condition and oscillation frequency can be electronically/independently controlled by adjusting the bias current of the C...

Load cell response correction can be used to speed up the process of measurement. This paper investigates the application of analog adaptive techniques in load cell response correction. The load cell is a sensor with an oscillatory output in which the measurand contributes to response parameters. Thus, a compensation filter needs to track variation in measurand whereas a simple, fixed filter is...

This paper present high-precision half-wave rectifier circuit in dual phase output mode by 0.5 μm CMOS technology, + 1.5 V low voltage, it has received input signal and sent output current signal, respond in high frequency. The main structure compound with CMOS inverter circuit, common source circuit, and current mirror circuit. Simulation and confirmation quality of working by PSpice program, ...

This article presents new current-mode oscillator circuits using CDTAs which is designed from block diagram. The proposed circuits consist of two CDTAs and two grounded capacitors. The condition of oscillation and the frequency of oscillation can be adjusted by electronic method. The circuits have high output impedance and use only grounded capacitors without any external resistor which is very...