Dependent voltage source hspice manual pdf

However, to get around this problem go back to the schematic. User manual spice model tutorial for power mosfets. In a separate part of the circuit there is a linear, voltage dependent, current source that delivers a current given by ig v1 1. Vth lv9 threshold voltage bias dependent all vdsat lv10 saturation voltage vdsat all pd lv11 drain diode periphery pd all. Chapter 7 performing transient analysis class home pages. We do not provide such technical support for general circuit simulations that are not for the evaluation of ltc products. The general form for both current and voltage sources are shown below. Hsice simulation guide penn state college of engineering.

This tutorial introduces the dependent source elements in pspice. R ohm c farad l henry the scaling for the all units in hspice is done by. I am trying to add dependent voltage sources in ltspice, but i need to make a voltage dependent source whose voltage depends on the average of two voltages. Independent source elements using sources and stimuli 54 star hspice manual, release 1998. Hspice simulation and analysis user guide version x2005. The device library contains nonlinear models of the most common op amps. Source controlled multiple controlling sources voltage source. This manual generally follows the conventions used in the microsoft windows users guide. Brief introduction to hspice simulation wojciech giziewicz 1 introduction. Simulation with hspice university of texas at dallas. The dc analysis can also be used to generate dc transfer curves. The second option uses actual transistors to model the opamp.

Must begin with an v followed by up to 15 alphanumeric characters. The standard symbol for a dependent source is the same as that used for an. 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. Hspice mosfet models manual university of rochester. When more than one polynomial coefficient is specified, the element is nonlinear, and p0. Passive devices diodes jfet and mesfet devices bjt devices inside this manual this manual contains the chapters described below. Dependent sources voltage controlled voltage source. Hspice simulation and analysis user guide version y2006. Since transient analysis is dependent on time, it uses different analysis.

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. The parts needed are voltage and current sources from the component dialog and resistors from the edit menu or component dialog, or. Hspice manual bipolar junction transistor electrical. These sources are known as current dependent current sources i of i sources and voltage dependent current sources i of v sources. This is actually a keyword common to all elements including subcircuits, except for voltage sources. Chapter 11, using hspice with hspice rf describes how various analysis features differ in hspice rf as compared to standard hspice. So far we have covered circuits with resistors and independent sources. Data statements basic components resistors capacitors and inductors voltage and current sources. For linear controlled sources, we have the following four sources. Chapter 5 using sources and stimuli class home pages. This command performs a time dependent analysis starting from time0 sec to timetstop sec. With over 500,000 copies distributed so far, many users have reported.

However, it is not written that you must trust hspice and so the units can be manually assigned by. Ngspice users manual version 31 describes ngspice release version holger vogt, marcel hendrix, paolo nenzi september 22nd, 2019. Current dependent voltage source in ltspice youtube. The fourth example is a piecewise linear current controlled current source. Adding a current dependent voltage source to ltspice. Spice quick reference sheet the general anatomy of a. Current dependent current sources f elements current controlled current source cccs the syntax is. Ltspice iv getting started guideltspice iv getting started. Introduction and analysis of circuits containing dependent sources. In general, voltage and current sources in hspice can be very almost anything from simple dc sources too incedibly complex piecewise linear ones. Ltspice dependent voltage sources circuit electrical. The example above describes an h element dependent voltage source with the.

This is the opposite direction of the voltage source. Dependent sources in the ue library and in ltspice iv look different than the standard dependent source symbols. Names of voltage sources through which the controlling current flows. For a non linear voltage dependent timeindependent capacitor these formulas become. As an example an ideal opamp is easily simulated using a voltage dependent voltage source. Voltage dependent voltage 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. Now, you will be shown a window with only the dependent source. Controlled sources measure voltage or current and use the measured value to control their output, which can be either a voltage or current. The university of evansville ltspice iv component library. 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. Hspice is a smart program and will automatically assign ohms to resistors, farads to capacitors, and henries to inductors. Recall that in the voltage and current source cards it is possible to specify an ac qual. An ac voltage source is defined between vsig node and ground, with its ac.