How to model a voltage controlled switch in hspice. Like diode, it is also a unidirectional device and forward conduction is from anode to cathode. You can simulate the terminator by using other existing. Solutions for power factor correction at medium voltage 20 circutor. Determine the charge and voltage across any chosen capacitor in a network when given capacitances and the externally. Pspice tutorial create a new project and select analog or mixed ad. Voltage controlled oscillator vco the keyword vol is used to define a singleended input that controls the output of a vco. Spice simulation program with integrated circuit emphasis originally developed at ee berkeley uses mathematical models to describe circuit elements spice3 is the latest variant. When enabled, the control returns to its regular control strategy after receiving a scada command. Title line is always the first line of the input file. Getting started with hspice 4 digital circuit simulation using hspice for the mos transistors in this file. Dependent current sources g elements voltage controlled current source vccs the syntax is. Static var compensators are a member of the flexible ac transmission system facts family.
This document is for information and instruction purposes. Vccap is a star hspice keyword and should not be used as a node name. Resistor r b and capacitor c b form a b1 2015 oxford university press reprinting or distribution, electronically or otherwise, without the express written consent of oxford university press is prohibited. Automatic calculation of voltage change and kvar change, if applicable due to capacitor. Related documents the following documents pertain to. Data statements basic components resistors capacitors and inductors voltage and current sources. Capacitor bank protection and control, application manual english pdf manual rev615 5. Vccap keyword for voltage controlled capacitance element. Since no significant dc current flows in the varicap, the value of the resistor connecting its cathode back to the dc control voltage resistor can be somewhere in the range of 22 k.
Voltage controlled switch 218 capture parts 219 ideal switches 219 voltage controlled switch model parameters 219 special considerations 219 voltage controlled switch equations 220 voltage controlled switch equations for switch resistance 221 voltage controlled switch equation for noise 221 transmission line 222 ideal line 223 lossy line 224. Eldo users manual university of kentucky college of. Brief introduction to hspice simulation wojciech giziewicz 1 introduction this document is based on one written by ihsan djomehri, spring 1999. Pwl method is a subset in vccs voltage controlled current source dependent source of. Hi, i was wondering how to model a voltage controlled switch in hspice. Hspice simulation and analysis user guide electrical and. Hsice simulation guide penn state college of engineering. Solutions for power factor correction at medium voltage. Besides connecting the varactor which has low capacitance value pf range in parallel, anyone has any idea on how to achieve the mentioned values using a different approach.
Spice quirks using the spice circuit simulation program. Hspice applications manual, and hspice command reference. This tutorial introduces the dependent source elements in pspice. Var and current control strategies are optionally available. Vccs keyword for voltage controlled current source. Using pspice for circuits with dependent sources the problems in this tutorial and the corresponding homework continue to deal with the dc analysis of circuits, or dc bias analysis in pspice. Spice quick reference sheet the general anatomy of a spice. These can be used to make voltagecontrolled resistors and capacitors. A voltagecontrolled resistor bela geczy ltspice is one of the worlds leading circuit simulation tools. Mentor graphics reserves the right to make changes in specifications and other information contained in this publication without prior notice, and the. Audience this manual is intended for design engineers who use star hspice to develop, test, analyze, and modify circuit designs. Appendix 2 voltagecontrolled capacitors capacitance. Overview of mosfet models mosfet output templates ideally, m1 one finger and m2 five fingers should have same values of channel current since their w and l values are same, but these values are different because for the fingered mosfets, the channel current, effective.
Hi, currently i need a voltage controlled capacitor that has value between 1nf to 2. For example, if we desire to know the voltage across a capacitor whose leads connect between nodes 4 and 7, we might make out. These types of problems are common whenever one tries to model any nonlinear com. In 1998, linear technology hired mike engelhardt to re. Model statements allow extra device descriptions are required for accuracy. Capacitor 126 capture parts 127 breakout parts 127 capacitor model parameters 128. I tried using g1 2 0 vcr pwl1 1 0 0,10meg 1v,1m however this doesnt seem to work.
Chapter 22 performing behavioral modeling class home pages. C 2 capacitor p, n d 2 diode p, n e 4 voltage controlled voltage source p, n, cp, cn f 2 current controlled current source p, n g 4 voltage controlled current source p, n, cp, cn h 2 current controlled voltage source p, n i 2 fixed current source p, n j 3 jfet d, g, s k 0 coupling for inductors. The capacitor bank controller is a preengineered control system containing a micrologix 1400 controller, one or more powermonitor modules, and an. Lab manual power electronics ee460 page 4 of 80 com3lab board passive elements the values of the r, l and cs loads used on the power electronics board are. The signal which is transmitted from one end of the pair to the other end is the voltage between the conductors. This token may now be used on local linux and local solaris hspice simulations with hspice 2007. User manual capacitor bank controller catalog number 14cap. Hspice has a voltage controlled capacitor vccap model, s. Automatic power factor controller connection signal var6a or var12a auxiliary power supply ac110v 5060hz over voltage relay capacitor control circuit provides protection against overvoltages on capacitors since overvoltages will shorten capacitor lifetimes and lead to explosion of capacitors in extreme cases.
Pspice schematic with current controlled voltage source. 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. C capacitor model core magnetic core model pmos pchannel mofet model d diode model examples. You have to explicitly tell hspice to generate the extra. Chapter 6 dc initialization and point analysis oregon state.
Computer modeling of electronic circuits with ltspice. Ltspice includes a large number of excellent fet models, but sometimes you need to simulate a simple switch that opens and closes at specific times or under certain conditions. Awaves is a program that allows you to graphically plot the results of the hspice analysis. For the voltage controlled switch, nodes 3 and 4 are the positive and negative controlling nodes respectively. This manual generally follows the conventions used in the microsoft windows users guide. Controlled sources voltage controlled voltage source e analog current controlled voltage source h analog voltage controlled current source g analog current controlled current source f analog. Awaves is a program that allows you to graphically plot the results of the analysis that hspice did.
So far we have covered circuits with resistors and independent sources. Spice reads in a list of circuit nodes and the elements between. Capacitor bank protection and control rev615 capacitor. Note that im not talking about the sum of the capacitances from the mos transistor, but the transistor behaving as a capacitor. Modeling voltagecontrolled resistors and capacitors in. The cscsv sensors are wellsuited for working with our intellicap or intellicap plus automatic capacitor controls with var sensing. Voltagecontrolled capacitors capacitance transformers from a circuit designers point of view any diode is no more than a nonlinear resistor whereas a transistor is simply a voltagecontrolled nonlinear resistor its output impedance is controlled by input signal.
The capacitance value across nodes out,0 varies linearly from 1p to 5p when voltage across nodes ctrl,0 varies between 2v and 2. Thus, using 16 produces large errors if c is a strong function of v and v varies significantly with t. Parameter v0 is the dc offset voltage and gain is the amplitude. Power electronics lab 2010 f f a silicon controlled rectifier scr is a four layer, three terminals and three junction device, which is basically a rectifier with a control terminal called gate. Spice quirks chapter 7 using the spice circuit simulation program pdf version.
Vccs is a star hspice keyword and should not be used as a. The dc operating point analysis control options control the dc convergence. Circuit elements and models university of california. Data statements basic components resistors capacitors and inductors voltage and current sources independent dc sources independent ac sources transient sources sinusoidal sources piecewise linear source pwl pulse. Hspice mosfet models manual university of rochester. Starhspice then connects a voltage source equivalent to. Hspice simulation and analysis user guide version x2005.
Modeling varactors deriving a chargebased model 4 of 7 the designers guide community 15 because cvt itself varies with time. Some types of analysis use the associated analysis sources. In general, voltage and current sources in hspice can be very almost anything from simple dc sources too incedibly complex piecewise linear ones. Chapter 5 using sources and stimuli class home pages. Commands and control options provides reference information for hspice and hspice rf commands and options. Passive devices diodes jfet and mesfet devices bjt devices inside this manual this manual contains the chapters described below.
See voltage controlled voltage source vcvs in the hspice simulation and analysis user guide. Input file hspice input is composed of mainly four part. For more specific details and examples refer to the relevant manual. Rev615, numerical capacitor bank protection in medium voltage networks, guideform specification. Hspice features for running higherlevel simulations. Solutions for power factor correction at medium voltage 20 circutor, s. The thyristor switched capacitor is an important component of a static var compensator svc, where it is often used in conjunction with a thyristor controlled reactor tcr.
Elements and device models describes standard models you can use when simulating your circuit designs in hspice, including passive devices, diodes, jfet and mesfet devices, and bjt devices. For the current controlled switch, the controlling current is that through the specified voltage source. Voltage controlled voltage source 4 voltage controlled current source 4 basic spice polynomial expressions poly 6. This manual describes the starhspice circuit and device simulation software and how to use it. Resistor elements in a hspice or hspice rf netlist. Spice quick reference sheet the general anatomy of a. Lib library file contains subcircuit models for voltage controlled reactances and admittances. In the following example, the frequency of the sinusoidal output voltage at node out is controlled by the voltage at node control. Model statement can be used to give resistors operating temperatures, l and w values to mosfets, or even insulator thickness on a capacitor. In this application note, we will illustrate the usage of voltage controlled impedance for controlling q of a series rlc filter network and changing the frequency of a wien bridge oscillator.
Hspice tutorial university of california, berkeley. For spice options not available in pspice, see differences between pspice and berkeley. The capacitor value can be described as a function of any node voltages, branch currents, and any independent variables such as time, frequency hertz, or temperature temper. Hi guys, im trying to obtain the cxv curve from moscap in spice hspice. Modeling voltagecontrolled resistors and capacitors in pspice. To insert and configure a switch in ltspice insert the symbol for the voltage controlled switch in your schematic press f2 and type sw in the search field of the symbo. These can be used to make voltage controlled resistors and capacitors. Originally developed at berkeley in the late 60s and early 70s, spice has evolved into one of the tools of choice for circuit simulation. However, you will need to explicitly command hspice to generate the extra. Ngspice users manual version 31 describes ngspice release version holger vogt, marcel hendrix, paolo nenzi september 22nd, 2019.
Intellicap automatic capacitor controls and sensors. Hspice simulation and analysis user guide version y2006. Hspice elements and device models manual version x2005. Hspice manual bipolar junction transistor electrical.
Bjts, mosfets, jfets and passive capacitors at each. Mos capacitor cv modeling using iccap hojoon kweon fairchild semiconductor 82326801293. Any two conductors can make up a transmission line. It allows dc and time transient analysis of nonlinear circuits.
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