Simulators
EDWinXP provides two types of simulators one is Mixed Mode Simulator and other is EDSpice Simulator.
Mixed Mode Simulator
Simulation is a design analysis, which replaces design symbols with their Simulation models and provides a detailed analysis of their behavior. For Simulating a designed circuit, the model of the real circuit is created taking all factors into consideration, and the appropriate inputs are given. Then the outputs at each level are checked and corrections or modifications are made. Hierarchical simulation has been implemented in EDWinXP Mixed Mode Simulator.The simulator now supports simulation of hierarchical databases. In addition to that, two new analysis has been introduced in Mixed mode simulator that assist end users to design the circuit precisely.
How to Prepare the circuit for Simulation?
Monte Carlo analysis is used to calculate component parameter values for a given output at a given instant of time. Sensitivity analysis points out the most sensitive component to a particular parameter such as voltage, current, etc. During simulation all factors are taken into consideration and a model of the real circuit is created and the inputs are given accordingly. Then the outputs at each level are checked and corrections or modifications, if any, are made. There are a number of algorithms used universally to simulate a circuit. The Mixed-Mode Simulator is one of the best tools used. It can simulate analog, digital as well as a combination of analog-digital circuits. It is a de facto that an analog simulator equipped with a logic simulation engine that models the digital parts of a circuit during the Transient Analysis run. The commonly used functions by the simulator are: Bias point calculation, Transient analysis, Parameter sweep analysis, DC Sweep Analysis, AC Sweep Analysis, Monte Carlo Analysis, Sensitivity Analysis, Preprocessing pass.
EDSpice Simulator
The EDSpice Simulator is a plug-in extension of the EDWin Electronics CAD/ CAE System. It provides EDWin users with the facility to analyze and validate the functionality and behavior of circuits captured in the form of schematic diagrams. The EDSpice Simulator is based on SPICE 3F5 and XSPICE with a number of extensions and improvements. SPICE 3F5 was developed by the University of California and XSPICE was developed by Georgia Tech Research Institute.
How do we analyse the circuit using EDSpice Simulator?
SPICE is well known in the electronics industry as a general-purpose circuit simulation program for nonlinear dc, nonlinear transient and linear ac analyses. XSPICE extends SPICE3's capabilities to allow simulation of mixed-signal (analog/digital) and mixed-level circuits. EDSpice is a separate product and must not be confused with EDWinXP's current Mixed Mode Simulator Apart from simulating circuits captured using the editing functions of the EDWinXP Schematic Editor package, experienced SPICE users may simulate circuits generated by other CAD/ CAE packages, capable of producing netlists complying with the Berkeley SPICE2G.6 format. An additional feature allows you to recreate the schematic part of EDWinXP's circuit projects, by importing files in the above-mentioned standard. SPICE netlist or input files (.CIR) generated by EDWinXP (function of EDSpice Simulator interactive module) are fully compatible with the Berkeley standard. This means that circuits captured in EDWinXP may be simulated by any third party SPICE simulator.