This paper will describe a fault simulation tool for analogue and mixed-signal circuits based on the HSpice circuit simulator and a graphical user interface (GUI)/Integration tool created using Tcl/Tk. The structure and use of the tool is demonstrated with example to the fault-free and fault simulation of a weighted-current Digital to Analogue Converter (DAC). Fault simulation techniques utilis...

Abstract. The semi-active torsional vibration absorber can effectively reduce the of power-train system. In this paper, a new type variable stiffness with magnetorheological elastomer (MRE) as an intelligent controlling element is designed, and modal analysis, frequency-tracking scheme, damping effects have been studied. A transient dynamic simulation utilized to validate rationality mechanical...

In almost all of the currently working circuits, especially in analog circuits implementing signal processing applications, basic arithmetic operations such as multiplication, addition, subtraction and division are performed on values which are represented by voltages or currents. However, in this paper, we propose a new and simple method for performing analog arithmetic operations which in thi...

This paper argues in favor of adaptive reconJiguration as a technique to expand the operational envelope of analog electronics for extreme environments (EE). On a reconfigurable device, although component parameters change in EE, as long as devices still operate, albeit degraded, a new circuit design, suitable for new parameter values, may be mapped into the reconJigurable structure to recover ...

The presented tool “Plantage+” significantly speeds up the layout process of analog circuits. Integrated in an industrial IC design environment, the tool recognizes basic building blocks in the circuit. It automatically sets up constraints and generates layouts using a deterministic algorithm.

Copper indium gallium selenide (CIGS)-based solar cells have exhibited greater performance than the ones utilizing cadmium telluride (CdTe) or hydrogenated amorphous silicon (a-Si: H) as absorber. CIGS-based devices are more efficient, considering their device performance, environmentally benign nature, and reduced cost. In this article, we proposed a potential CIGS-absorber-based cell with an ...

In copper oxide (CuO) based solar cells, various buffer layers such as CdS, In2S3, WS2 and IGZO have been investigated by cell capacitance simulator (SCAPS) in this work. By varying absorber layer thickness, photovoltaic parameters (open circuit voltage, fill factor, short-circuit current density efficiency) are determined. The highest efficiency achieved is 19.6% with layer. impact of temperat...

We present an analog circuit implementation of the novel partial control method, that is able to sustain chaotic transient dynamics. The electronic circuit simulates the dynamics of the onedimensional slope-three tent map, for which the trajectories diverge to infinity for nearly all the initial conditions after behaving chaotically for a while. This is due to the existence of a nonattractive c...

Despite the significance of matched devices in analog circuit design, mismatch modeling for design application has been lacking. This paper addresses misconceptions about MOSFET mismatch for analog design. t mismatch does not follow a simplistic 1 ( area) law, especially for wide/short and narrow/long devices, which are common geometries in analog circuits. Further, t and gain factor are not ap...