Tyco TX 75149 - Manual - manualsarea.com

Page 2 - Copyright

2 Copyright **************************************************************************** COPYRIGHT 2001, TYCO ELECTRONICS POWER SYSTEMS, INC. * * ALL INTERNATIONAL RIGHTS RESERVED * *************************************************************************** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...

Page 4 - Introduction; System Requirements

4 Introduction The Stability Analysis Tool (SAT) is a Microsoft Excel-based program that provides a Bode plot of the voltage loop gain of a DC-DC converter for a variety ofexternal loads. From this plot, information such as crossover frequency and gain andphase margins can be obtained. In classical ...

Page 5 - USA

5 Installation and Usage You should first read and accept the terms of the SAT usage. Download the file SAT_v1.3.xls from the Tyco Electronics Power Systemsweb site (given below) to a directory on your computer. Download one or more module data file(s) to the same directory. You can start up the too...

Page 6 - Using SAT; When you start SAT, you will see the window shown in Figure 1.

6 Using SAT When you start SAT, you will see the window shown in Figure 1. 2 Fig. 1. SAT Introduction and Module Selection page

Page 7 - Module Selection

7 Load Module Data File There are two sheets, " Module Selection " and " Configuration Menu " shown initially at the bottom left-hand section of the Excel spreadsheet. Each session should start at the " Module Selection " sheet. Click on the button This will bring the module ...

Page 8 - The; lists five choices for representing the load circuit; Configuration Menu

8 If you want to choose a different module data file, you can always go back to the Module Selection sheet to change it. The Configuration Menu lists five choices for representing the load circuit topology. The first configuration is a simple one where the output voltage is senseddirectly at the out...

Page 9 - model of the capacitor bank. The load is modeled by the resistance R

9 C lick to C alculate Stability model of the capacitor bank. The load is modeled by the resistance R L . The second configuration is similar to the first one except that the voltage senselocation is moved from the output pins of the module to the load. In this case,the voltage sensed and regulated ...

Page 10 - tab at; Stability Analysis Tool

10 SAT draws the Bode plot of the voltage loop gain on the right half of the page as shown in Figure 5. The phase margin, which is a measure of stability, and the gaincrossover frequency, which is a measure of fast transient response, are alsocalculated and presented below the Bode plot. You can ent...

Page 11 - Fig. 6. Voltage loop response Bode plot when C

11 R load = 0.5 ohm R s1 = 1 R s2 = 5 mohm L s1 = 4 L s2 = 100 nH R a1 = 100 R a2 = 100 R a3 = 10 R b1 = 10 R b2 = 10 mohm L a1 = 1 L a2 = 1 L a3 = 1 L b1 = 10 L b2 = 10 nH C a1 = 10 C a2 = 10 C a3 = 1000 C b1 = 1000 C b2 = 1000 µ F 696.6 Hz 52.06 degrees Stability Analysis Tool Notepad Area for JFW...

Page 12 - To analyze a different module, you should select the; Paralleled Modules; Fig. 7. Stability analysis of the JFW050A for Configuration 2.

12 To analyze a different module, you should select the Module Selection tab at the bottom of the Excel Worksheet to go back to the first page and load the datafile for the new module. Note that the new data file will overwrite the old onebelonging to the JFW050A. If you want to keep your analysis r...

Page 13 - customer application.; References

13 customer application. SAT can be used to assess the common-mode stability characteristics of a paralleled converter system by analyzing an equivalent single-module system. Thesingle-module equivalent is obtained by scaling the load by the number ofparalleled modules. For example, in a two module ...

Page 14 - Limitations of SAT; Although SAT is a powerful tool, please keep in mind the following :

14 Limitations of SAT Although SAT is a powerful tool, please keep in mind the following : 1. The loop gain Bode plot and phase margin predicted by SAT are valid when the module is operating in continuous conduction mode (CCM). Therefore, makesure that R L is sufficiently low enough to guarantee a l...

Page 15 - Troubleshooting; If you encounter the following message when running SAT,

15 Troubleshooting If you encounter the following message when running SAT, there are two possibilities for the error message. 1. Some of the parameters you entered for your network are nonnumeric. 2. You have not enabled the Analysis Toolpack and Analysis Toolpack – VBA in your Excel environment as...

Tyco TX 75149 - Manual

Table of Contents:

Summary

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