Capop allows for the selection of several versions of the meyer and charge conservation model. Spice quick reference sheet the general anatomy of a spice. Linear current controlled current sources general form. See f element parameters in the hspice simulation and analysis user guide. For each of the previous discussed voltage sources, there exists the exact same source except that it produces current. Dc var startval stopval incr performs a dc sweep on the independent source or. I wrote a hspice code to simulate and plot the nmos iv curve. G voltage controlled current source h current controlled voltage source.
Hspice does not give the dc voltages unless you have specified a. Hspice tutorial university of california, berkeley. Input file hspice input is composed of mainly four part. Spice simulation cmos vlsi design slide 16 subcircuits. E elements voltage controlled voltage source vcvs linear polynomial piecewise linear.
The first example describes a current controlled current source connected between nodes and 5. The delay element is the same as a current controlled current source except it is associated by a propagation delay td. Chapter 5 using sources and stimuli class home pages. See e element parameters in the hspice simulation and analysis user guide. Different types of sources are used for different types of analysis. Hspice simulation and analysis user guide version y2006. For more details on hspice input file format, please refer to the. Hspice simulation and analysis user guide version x2005. Hspice does not give the dc voltages unless you have specified a certain analysis type, such as. Hspice circuit simulation for elen153 santa clara university. Controlled sources model gate switching action for the. Figure 1 above shows an example of a circuit with a current controlled voltage source. Current dependent current voltage controlled switch voltage dependent current current dependent voltage independent current source lossless transmission line uniform rcline independent current source independentvoltagesource jfet transistor mutual inductance independent voltage source current controlled switch subcircuit.
Ngspice users manual version 34 plus ngspice development version holger vogt, marcel hendrix, paolo nenzi, dietmar warning march 14, 2021. Mentor graphics reserves the right to make changes in specifications and other information contained in this publication without prior notice, and the. Type edit in the command line to make changes to the netlist. This manual describes the star hspice circuit and device simulation software and how. Ltspice iv getting started guideltspice iv getting started guide.
Current controlled voltage source vcontrol refers to the voltage source which the. The syntax for writing the hspice files is same as for the most commonly used pspice, except that you. Before running hspice, users should execute the command source usrclassee dot. Open a new pspice project and enter this schematic. For descriptions of the other manuals in the hspice documentation set, see the next section, the hspice. Audience this manual is intended for design engineers who use star hspice to develop, test, analyze, and modify circuit designs. A hspice simulation and analysis user guide, x2005. This element facilitates the adjustment of propagation. Current controlled current sources cccs linear exxx voltage controlled element name. You can edit the widths and the lengths by right click on part and click property editor.
Inside this manual this manual contains the chapters described below. Voltage controlled current source vccs g analog current controlled voltage source ccvs h analog figure 1. This manual is intended to provide a complete description of ngspices functionality, features, commands, and procedures. Current flow is from the positive node, through the source, to the negative node. Ac analysis spice automatically does a dc analysis. A dc source, a frequencysweeping ac source, and time varying signals all can be modeled with standard hspice signal sources. If you have questions, read the section on workstation basics later in this handout. Hspice simulation and analysis user guide version z2007. Netlisting by signal mode controlled sources controlled sources model both analog and digital circuits at the behavioral level, allowing for fast mixedsignal simulation times and providing a means to model system level operations. Hspice simulation and analysis user guide department of. The four types of dependent sources are listed below in table 1 along with their abbreviation, pspice name and library. Current dependent current lossy transmission line bipolar transistor current dependent current voltage controlled switch voltage dependent current current dependent voltage independent current source lossless transmission line uniform rcline independent current source independentvoltagesource jfet transistor mutual inductance. A more detailed list can be found in the spice manual.
This manual describes the starhspice circuit and device simulation software and how. Hspice elements and device models manual version x2005. The procedure for opening an xwindow varies depending on the type of computer you are using. In this example we will construct a current mirror, where we would like to mirror the current four times the current source. For the sources, the qualifer input is dc, ac, or a transient function as applicable to the respective analysis. Dependent sources dependent source abbreviation pspice name library voltage controlled voltage source vcvs e analog current controlled current source cccs f analog voltage controlled current source vccs g analog. Title line is always the first line of the input file. Currentcontrolled voltage source vcontrol refers to the voltage source which the.
Independent source elements using sources and stimuli 54 star hspice manual, release 1998. The current that controls the value of the controlled source flows through the voltage source named vsens to use a current controlled current source, a dummy independent voltage source is often placed into the path of the controlling current. Voltage and current controlled elements hspice supports the following voltage and current controlled elements. Since this line is echoed back in the outputfile for the page header, it is a very good place to describe what this simulation is for.
It can output results in a number of convenient forms for. This manual generally follows the conventions used in the microsoft windows users guide. F elements current controlled current sources cccs linear polynomial min minimum output voltage value. This document is for information and instruction purposes. Cccs is a star hspice keyword and should not be used as a node name. Construct the following circuit with the following sizes for the transistors. By use of the appropriate options, files are produced. Vnam is the name of a voltage source through which the controlling current flows.
If you are converting a spice3 input file to hspice format, it is only necessary that you add the line. Execution of hspice produces a number of files depending on userspecified options. This text file contains the circuit netlist, element models, analysis commands and output commands. Three independent sources can be used in hspice simulations.
Source controlled multiple controlling sources current source. Spice quick reference sheet the general anatomy of a. For detailed information, see voltage and current controlled elements in the hspice simulation and analysis user guide. Type the current directory path to the folder that contains the netlist.
Hspice applications manual, and hspice command reference. For spice options not available in pspice, see differences between pspice and berkeley. Ltspice iv getting started guideltspice iv getting started. Hspice is just a program that takes in a netlist a simple text. V1 1 0 dc5v v1 1 0 5v i1 1 0 dc5ma i1 1 0 5ma the first two examples specify a dc voltage source of 5 v connected between node 1 and ground. Related documents the following documents pertain to.
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