Bode plot in hspice manual pdf

This user guide contains the chapters described below. Becoming familiar with this format is useful because. Hspice mosfet models manual university of rochester. Recall that for the magnitude bode plot, the vertical axis is measured in decibels, or db. This manual describes the starhspice circuit and device simulation software. Be sure that a complete set of parameters is entered in the correct sequence before. Example 1 calculates a dc transfer function for a cmos inverter.

For details about all commands and options, see the hspice reference manual. 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. Syntax notation the meaning of a parameter may depend on its location in the statement. Introduction to bode plot 2 plots both have logarithm of frequency on xaxis o yaxis magnitude of transfer function, hs, in db o yaxis phase angle the plot can be used to interpret how the input affects the output in both magnitude and phase over frequency. Then choose a db probe from the pspice menu item pspice.

Graph nodal voltages, element currents, circuit response, algebraic expressions from. Hspice command reference department of electrical and. Many common system behaviors produce simple shapes e. However, we can use awaves to calculate the magnitude in db. Hspice tutorial university of california, berkeley. A hspice simulation and analysis user guide, y2006. How can we plot parameters like ro or gm for a dc sweep of say vds in hspice. For this deck, we are only concerned about the frequency response, so we. Hspice has calculated voltage magnitudes, but it hasnt calculated them in db. Bode plots page 1 bode plots a bode plot is a standard format for plotting frequency response of lti systems. The above example plots the magnitude of the ac voltage of node 5 using the output variable vm. See the custom compiler simulation and analysis environment user guide. To observe the voltage of the output as well as its magnitude and phase i.

Calculates transfer function from the given source in the circuit to the. For more specific details and examples refer to the relevant manual. Hsice simulation guide penn state electrical engineering. Back in the circuit diagram, select the voltage problem and delete it. Chapter 9 ac sweep and signal analysis class home pages. It is a standard format, so using that format facilitates communication between engineers. Use bode 100 in observance of all existing safety requirements from national and international standards for accident prevention and environmental protection. The manual must be read by all people working with bode 100. Tf statement dc smallsignal transfer function analysis.