Existing nonlinear averaged models for current programmed converters are based on a steady-state formulation of the current mode control law. Although reasonably accurate at the lower frequencies (f << fswitching), these models tend to break down well before sampled-data effects nullify the assumptions underlying state-space averaging. Moreover, the SPICE implementation of the large-signal mode...

The method of immediate analysis of periodic steady states in switched DC-DC converters operating in the continuous current mode is described. The initial conditions, which correspond to the periodic steady state, are found in the first step. They are used consequently for the conventional transient analysis. A special SPICE model of the converter finds automatically these initial conditions, w...

We demonstrate through simulations the feasibility of using magnetically coupled nanometer-scale ferromagnetic dots for digital information processing. Microelectronic circuits provide the input and output of the magnetic nanostructure, but the signal is processed via magnetic dot–dot interactions. Logic functions can be defined by the proper placements of dots. We introduce a SPICE macromodel ...

The Spice Internet Package (SIP) was developed using an Internet browser as a platform-independent graphical user interface. The SIP application has many options that include simulation of SPICE files, graphical postprocessing data, and online editing of SPICE files. It can run remotely through a network on any operating system.

Facilities Management is a newly emerging and fast growing business sector. Currently there is limited research in process improvement in this sector. This paper discusses SPICE FM, a research project, which developed a process improvement framework for FM. The paper explains the SPICE FM framework, research methodology and well as a case study in implementing the framework. Background This pap...

This paper presents a model for characterizing delay and power for CMOS logic cells that accounts for input slope and output capacitance loading. A method for deriving the model parameters and VHDL modeling for simple logic gates is presented. The model makes feasible delay and power estimation at VHDL simulation speed, the errors of the model prediction are less than 5% of Spice results.

A data acquisition, parameter extraction and characterization system for electronic active components is presented in this paper. High sensitivity measuring equipments were used for data acquisition and effective extraction models based on optimization techniques developed to obtain the parameters of p-n junction diodes, Schottky diodes, field effect transistors and bipolar junction transistors...

The design and implementation of a component-based distributed Java front-end for the Berkeley SPICE circuit-simulation program is described. The front-end is architected as a client-server application implemented via the Remote Method Invocation (RMI) API. A graphical user-interface is implemented on the client-side which has multiple components for command and control, graphing, text-editing ...