Sandwiched piezoelectric transducers are widely used, especially in high power applications. For more convenient analysis and design, a PSpice lossy model of sandwiched piezoelectric ultrasonic transducers in longitudinal vibration is proposed by means of the one-dimensional wave and transmission line theories. With the proposed model, the resonance and antiresonance frequencies are obtained, a...

In this paper a vital component of communication system, a general purpose analog Phase lock loop (PLL) is modeled using a novel combinational approach which apart from having a high speed also mimics IC behavior in Silicon. An analog/digital circuit simulator PSpice is used for the purpose. The advantage of SPICE is that it offers models that accurately define a CMOS process. Since, SPICE simu...

Reversible logic has attracted tremendous interest among the researchers in low power VLSI field due to their simple structure and improved energy efficiency. In this paper, the implementation of an 8-bit low power multiplier based on reversible gate technology is reported. The structure of the reversible gate multiplier consists of following components: the first part is the reversible partial...

The paper deals with behavioral modeling of idealized systems with discontinuities. The purpose of such models is to obtain the first-order effects to verify analytic calculations or to increase simulation speed. Traditional algorithms for the time-domain analysis implemented in Spice-class simulators are based on the assumption of smoothness and continuity. Abrupt changes of system parameters ...

The process of simple fault injection into Pspice simulation environment has the disadvantage of low efficiency and low degree of automation. To address this problem, a multi-fault injector is designed and implemented. It can not only be capable of the single fault injection, but also have the function of the batch injection for the same fault type. Firstly, this paper explains the fault inject...