To create a reusable circuit, it must be constructed as a subcircuit. Lib and the model you want to use is a subcircuit called 1n5338b. Spice quick reference sheet the general anatomy of a spice. In this case you can add add a subcircuit model for a device. The ground node must be indicated by either the number 0, the.
Hspice uses subcircuit calls to read encrypted information. Include statement includes other netlist as subcircuit into current netlist ge. However, you will need to explicitly command hspice to generate the extra. Hsice simulation guide penn state college of engineering.
To print this manual 1 in acrobat reader, from the file menu, choose print. Include the subcircuit definition in the toplevel circuit hspice file using a. Chapter 4 specifying simulation output class home pages. Youll save a bit of time if the new device at least looks similar to one in the existing library. The linked sites, articles and presented information are provided as a useful insight to help you decide on the type of engineering expert you might need. Subckt command in spice electrical engineering stack. Chapter 7, library encryption describes the synopsys library encryptor and how to use it to protect your intellectual property. Mod download it, it is an ascii file in spice format. Then, control statements tell spice what type of analysis to perform on the circuit. Computer modeling of electronic circuits with ltspice. Quick spice introduction michigan state university.
In the edit window that opens, use the search box to search for the name of your subcircuit not the name of its file. It relates the subcircuit node names in subcircuit call statements to the node names used in. Ends subcircuits for opamp simulation commercial opamps often provide a model subcircuit netlist include opamp model subcircuit in your spice file call opamp model with single subcircuit element line ece 445. I need to find out the capacitance of an internal node in this circuit is there a command in hspice to do this. I am using the amplifier in the form of a subcircuit. Hspice simulation and analysis user guide version x2005. How to use this manual the manual is a work in progress. The node name is cross referenced in the output listing file starhspice produces. Spectre circuit simulator user guide columbia university.
Feed the simulator with a handcrafted netlist or a foreign netlist generated with a different schematic capture tool. To save a spice subcircuit linked with an image so that it can be used in psim schematics the same way as any other psim element, psim provides the image library editor. Ltspice iv getting started guideltspice iv getting started. I saw in the hspice 2004 manual that an instruction isub should allow to probe the current of a subcircuit node.
Virtuoso analog design environment user guide product version 5. Option macmod enables hspice mosfet to access the subcircuit definition when there is no matching model reference or enables an hspice xelement to access the model reference when there is no matching. The procedure for opening an xwindow varies depending on the type of computer you are using. As mentioned in the above comment we can write subcircuitsor any other part of netlist in a different file. Audience this manual is intended for design engineers who use starhspice to develop, test, analyze, and modify circuit designs.
How to print this online manual you can print any portion of this manual, or the entire book, to keep as a printed reference. Subckt command in spice electrical engineering stack exchange. Hspice is just a program that takes in a netlist a simple text. Ltspice iv getting started guideltspice iv getting started guide. Their model names and parameters are defined in the spice directive lock xspd1. Tips for using hspice university of california, berkeley. Hspice simulation and analysis user guide version y2006. The page numbers in the rest of this document refer to this manual. When a variable is included in italicized text, the variable is enclosed by angle brackets. Hspice also has specific file naming conventions to indicate the function of each file. Unfortunately it appears that there is only an hspice model, which i assumed had almost identical syntax to ltspice. Hspice tutorial university of california, berkeley.
If you have questions, read the section on workstation basics later in this handout. Audience this manual is intended for design engineers who use star hspice to develop, test, analyze, and modify circuit designs. Mn instruction where x1 is the subcircuit, and mn the element of the subcircuit. It relates the subcircuit node names in subcircuit call statements to the node names used in the corresponding subcircuit definitions. Solved subcircuit capacitance measurement in hspice. Spice quick reference sheet the general anatomy of a. Subckt file, which doesnt seem to be legal in ltspice. Inside this manual this manual contains the chapters described below. For descriptions of the other manuals in the hspice documentation set, see the next section, the hspice. Tutorial how to use the spice module psim software. Suppose the file that contains the model you want to use is called 1n5338b.
Before running hspice, users should execute the command source usrclassee dot. First, data statements describe the components and the interconnections. It remains the customers responsibility to verify proper and reliable operation in the actual application. Tutorial how to use the spice module 3 the mosfet has a model name si4628dy and is a subcircuit block defined with the. If its name contains version xxplus, it describes the actual code status, found at the date of issue in the git source code management scm tool. Awaves is a program that allows you to graphically plot the results of the hspice analysis. The way to define such spice models will be explained in section 3 defining spice models. I can access to the differents currents of the subcircuits by the way of a.
If there is a graphic image next to its name in the listing then 5spice has found a. Extract schematic for netlist using instructions given in the netlist extraction procedure below. If its name contains version xxplus, it describes the actual code status, found at the date of issue in. Passive devices diodes jfet and mesfet devices bjt devices inside this manual this manual contains the chapters described below. As i can understand subcircuitname and the first node of the subcircuit are mandatory. If there is a file missing, of a different size, or a difference between the local checksum and the one from the index file, then that file will be updated automatically. User may either write a new subcircuit netlist or use a pre. Spectre circuit simulator user guide january 2004 7 product version 5. Place a subcircuit symbol in the schematic and double click it to edit it. The hspice netlist is the subcircuit definition of the corresponding gate.
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