Single diode equivalent circuit models

Highlight of LTspice is much fast simulation of switching regulators with enhanced SPICE (compared to normal SPICE simulators).

LTspice gives access to over 200 op amp models, transistor models, MOSFET models etc.

Parameters for modules or arrays are strictly used with the single diode equation for , which is the more commonly implemented form.

Ngspice is a part of g EDA project which is growing every day with suggestions from its users, development from its contributors, fixing bugs and approaching perfection.One basic equivalent circuit model in common use is the single diode model, which is derived from physical principles (e.g., ) and represented by the following circuit for a single solar cell: The governing equation for this equivalent circuit is formulated using Kirchoff’s current law for current : Here, represents the light-generated current in the cell, represents the voltage-dependent current lost to recombination, and represents the current lost due to shunt resistances.In this single diode model, is modeled using the Shockley equation for an ideal diode: where is the diode ideality factor (unitless, usually between 1 and 2 for a single junction cell), is the saturation current, and is the thermal voltage given by: where is Boltzmann’s constant and is the elementary charge .The list is well structured as free circuit simulation softwares, open source circuit analysis and simulation software, simple and easy to use simulators, linux based simulator, windows based simulator etc.Finally after researching through all the list we have compiled a collection best circuit simulation softwares as well. Ng Spice – one of the popular and widely used free, open source circuit simulator from Sourceforge.

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