Instruction/ maintenance manual of the product TX 75149 Tyco
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TYCO ELEC TRONIC S POWER SY STEM S 3000 SKYL INE DRIVE MESQUIT E, TX 75149 S t ability Analysis T ool User's Guide For use with Board M ounted DC-DC converters V1.
2 Cop yri ght *************************************************************************** * COPYRIGHT 2001, TYCO ELECTRONICS POWER SYSTEMS, INC. * * ALL INTERNATIONAL RIGHTS RESERVED * ***************.
3 No oral or written information or advice given by Tyco Elect ronics or its distributors, agents or employees will operate to create any warranty or guarantee or vary any provision or information herein, and you may not rely on any such information or advice.
4 Intr oduction The Stab ility Analysis Tool (SAT) is a Microsof t Excel-ba sed program th at provi des a Bod e plot o f the voltag e loo p gain of a DC-D C conv erter for a v ariety of external l oads. From this plo t, infor matio n such as cross over freq uency and gain an d phase marg ins can b e obtained .
5 Installa tion and Usage You sh ould f irst r ead an d accept the terms o f the S AT usag e. Download the file SAT_v1.3.xls from the Tyco Electron ics Power Systems web si te (gi ven bel ow) to a di rector y on y our c omputer . Downl oad one or more mo dule data file(s) to the sam e director y.
6 Using SA T W he n you start SA T, you w ill see the w indow shown i n Figur e 1. 2 Fig. 1. SAT Introd uction and Mod ule Select ion page.
7 Load M odul e D ata F i l e There ar e two she ets, " Module Selection " and " Configuration Menu " shown initiall y at the bott om left-ha nd section o f the Excel sprea dsheet. Ea ch sessi on should star t at the " Module Selection " sheet.
8 If you w ant to choose a di fferent module dat a fil e, you can al way s go back to the Module Selection sheet t o change it. The Configuration Menu lists fiv e choic es for repr esenti ng the lo ad circui t topo logy.
9 C li c k to C alc u late St abi lit y model of the c apaci tor b ank. The load is modeled by the resista nce R L . The secon d configu rati on is similar to the firs t one except tha t the voltage sense location is mov ed from the output pi ns of the module to t he load.
1 0 SAT dr aws the B ode plot of t he vol tage lo op gain on t he rig ht hal f of the page as shown in Fig ure 5. The phas e margin, w hich is a measure of sta bility, and t he gain crossover frequency , whic h is a measure of fast transi ent response, ar e also calcu lated and prese nted be low th e Bod e plot.
11 R load = 0.5 o hm 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 = 100 0 C b1 = 1000 C b2 = 1000 µ F 6 96.
1 2 To analy ze a differen t module , you s hould s elect th e Module Selection tab at the bottom o f the Excel W orks heet to go back to the firs t page and loa d the data file for t he new mod ule. Not e that th e new data f ile w ill ov erwr ite the old one belong ing to the JF W 050A.
1 3 cust omer app lication. SAT can be used to assess the common-mode stability characteristics of a parallel ed conv erter syste m by analyzing an equiv alent single-m odule sy stem. The single- module equi vale nt is obtaine d by scaling the load by the number of parallel ed modules .
1 4 Limitations of SA T Alth ough S AT is a p owerfu l too l, plea se ke ep in mind the followin g : 1. The lo op gain Bod e plo t and ph ase mar gin pre dicted by SA T are vali d w hen the module is op erating i n continu ous conducti on mode (CCM).
1 5 T r oubl esho oting If you encou nter the follow ing message w hen running SA T, there are two possibilities f or the error messa ge. 1. Some o f the parame ters y ou entered for y our network are no nnumeric.
An important point after buying a device Tyco TX 75149 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Tyco TX 75149 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Tyco TX 75149 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Tyco TX 75149 you will learn all the available features of the product, as well as information on its operation. The information that you get Tyco TX 75149 will certainly help you make a decision on the purchase.
If you already are a holder of Tyco TX 75149, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Tyco TX 75149.
However, one of the most important roles played by the user manual is to help in solving problems with Tyco TX 75149. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Tyco TX 75149 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
