HAM Radio 1/HamRadio.cdr/tech/eepub07/abstract.488

Text File | 1988-04-20 | 8KB | 170 lines

REV:4/20/88           SUMMARY OF DISK CONTENTS


     Our first disk contains "ALMOND" by Chris Trask, an
optimization and design program for high-frequency networks using
"s" parameters. It features Response analysis, Stability
analysis, Sensitivity analysis and Optimization. A manual is
available. A superb work.
     Our second disk contains eight programs that have appeared
in various publications. I have tried all of these and haven't
found any bugs. Vince Hessen found a bug in "UMATCH",(disk 2).
Line 70 in this program should be w=c*d-b*e. This change, from a
plus sign, keeps the definition of the source and load Z
consistent with the definitions in the original article. A
collection of useful programs.
     Our third disk is a collection of programs from Dr. Allen
Katz. These disk contains a variety of valuable programs. Many of
these programs were converted from cp/m, a few still have minor
bugs. Some are  documented (these have a logo) and others are
still being worked on by Dr. Katz. I have made some fixes and
have noted them in the listings. The disk has been revised. Some
programs have been removed and others added. It would be helpful
in some cases if the documentation was expanded. If you use any
of these programs and make notes on there use, or on the source
of the equations, etc., please sent them to the library so we may
include them on the disk. Unlike many of the programs in the
library they are not based on a published article and one must
either understand the required inputs and outputs or determine
them either buy trial or by finding a suitable reference. A few
words of guidance can save hours.
     Our fourth disk contains seven programs that have appeared
in various publications and one unpublished work. I have run most
of them and have found no bugs.
     Our fifth disk  contains a mixture of programs, some based
on published articles and some are new. Jeff Crawford, see disk
#4, has contributed seven more programs, all in Turbo Pascal.
Richard Kolbly has sent us a number of programs that are based on
published articles, plus some of his own work.
     Disk six contains a number of programs from National
Semiconductor on filter design, digital filter design and
switching regulator design.
     Our seventh disk, contains three programs by Jorgan
Anderson. These are general purpose  feedback control programs.
They are great for analyzing phase locked loops. They output the
open loop, closed loop response as well as the transient response
to an impulse or step. Inputs are the poles and zeroes of the
transfer function and the loop gain. The compiled version of the
third program would not fit on this disk and is on disk #8.
     Disk 8 contains:
          1) Smith Chart Calculations & a Propagation program,
both by Lynn Gerig, both published in rf design(6/85 & 8/86).
     2) Two programs by Bert K. Erickson , Impedance Matching
Using Stern's Stability Factor, and a Network Analysis program,
both published in recent issues of rf design.
     3) Zcalc by Tom Story, unpublished. An rf engineers
calculator.
     Our ninth disk contains two compiled version of Almond. One
requires a math co-processor. The basic version and the sample
files from disk 1 are also on this disk. the manual is only on
disk 1. Two people have  yelled for help. The problem was
that the files must be entered in reverse order and the end
statement must have the same "num" as the last element. See file
"ALMOND.DOC".
     The tenth disk contains:
     1) D_stub, based on Robert Middelveen's article in July 86,
Microwaves & RF.
     2) Multiple-Tuned Amplifiers, Jan/Feb 83, rf design, Jack
Porter.
     3) Active Filter program by M. Chomet, unpublished.
     4) I have been trying to get programs based on the many
articles by Andrzaj B. Przedpelski into pc format. He has
supplied these programs to the library in H.P. Basic format. I
have converted one of the programs he supplied me in H.P. Basic
to run on my pc (Noise Figure of Cascaded Stages). The utility of
this program is that it calculates the noise contribution of
every stage, making it easy to spot where more gain, or a quieter
stage, is needed to reduce the system noise figure.
       Hopefully we will get the rest of Mr. Przedpelski's fine
work into pcdos/msdos format.
     5) Mr. Vincent Hessen (see disk #4) has sent in a disk
containing enhanced versions of six programs and claims more are
coming.
     Disk # 11 contains  the code used by I. Angelov & S. Haimov
to automate noise figure measurements using H.P. equipment.
     There are two amplifier design programs on this disk. Both
use "S" parameters and both are based on publishes articles.
     Disk # 12 contains three published programs. Mr. Arnesen
program on design of coupling loops, Mr. Bochtler & Mr. Endress
work on coupled lines and Mr. Feeney & Mr. Hertling's work on
Ladder Analysis.
     Disk # 13 is a copy of Siliconix's Fet Data Book
     Disk # 14 is Richard G. Fitagerrell's work on gain & other
properties of antennas. A published work.
     Disk # 15 contains yet another Nodal Analysis Program. This
one in Pascal with the "best yet" user interface. The same author
( Charles Dockstader) plus an associate also contributed a spur
program which is on this disk. Last but not least is another
electronic Smith Chart. Believe it or notAXIMUM PRIMARY OUTPUT CURRENT AND THE"
3640 PRINT" RIPPLE CURRENT ( MINIMUM OUTPUT CURRENT ) EXCEEDS"
3650 PRINT" THIS DEVICES PEAK CURRENT RATING."
3660 PRINT
3670 BAD=0
3680 IF NEWC=1 GOTO 3800
3690 X=1
3700 M=PO(2)-(PO(3)*ESR(X))
3710 IF M>0 GOTO 3740
3720 X=X+1
3730 GOTO 3700
3740 IF (PO(3)/(4*F*M))-C(X)<=0 GOTO 3770
3750 X=X+1
3760 GOTO 3700
3770 B=X
3780 CMIN=C(B)
3790 ER=ESR(B)
3800 IF (PO(2)-(PO(3)*ER))<=0 GOTO 3830
3810 IF CMIN<(PO(3)/(4*F*(PO(2)-(PO(3)*ER)))) GOTO 3830
3820 GOTO 3870
3830 PRINT
3840 PRINT" THE PRIMARY OUTPUT FILTER CAPACITOR IS INSUFFICIENT FOR THE"
3850 PRINT" OUTPUT RIPPLE VOLTAGE YOU WANT."
3860 GOTO 5410
3870 REM
3880 PRINT
3890 PRINT"     OUTPUT FILTER INDUCTOR, L .................";
3900 PRINT L*1000000!;
3910 PRINT"uH"
3920 PRINT"     MAX MAGNETIC ENERGY IN CORE, 1/2*LI(2) ....";
3930 PRINT EM*1000;
3940 PRINT"mJ"
3950 PRINT"     OUTPUT FILTER CAPACITOR, C ................";
3960 PRINT CMIN*1000000!;
3970 PRINT"uF"
3980 PRINT"     EFFECTIVE SERIES RESISTANCE OF C, ESR .....";
3990 PRINT ER;
4000 PRINT"OHMS"
4010 RF = 2*((PO(1)-2.5)/2.5)
4020 IF D<>1 THEN RF=RF*2
4030 PRINT"     FEEDBACK RESISTOR, Rf .....................";
4040 PRINT RF;
4050 PRINT"kOHMS"
4060 IF D=1 GOTO 4180
4070 RC=200/I(1)
4080 IF NEWC =0 GOTO 4110
4090 CC=SQR(L*CMAX*10)/(RC*1000)
4100 GOTO 4120
4110 CC=SQR(L*C(B)*10)/(RC*1000)
4120 PRINT"     COMPENSATION RESISTOR, Rc .................";
4130 PRINT RC;
4140 PRINT"kOHMS"
4150 PRINT"     COMPENSATION CAPACITOR, Cc ................";
4160 PRINT CC*1000000!;
4170 PRINT"uF"
4180 CT=1/(10000*F)
4190 IF D=1 THEN CT=CT/4.7
4200 PRINT"     TIMING CAPACITOR, Ct ......................";
4210 PRINT CT*1E+12;
4220 PRINT"pF"
4230 PRINT"     REFERENCE VOLTAGE CAPACITOR, Cref ......... 10 uF"
4240 VSM= 1+PO(4)/20
4250 IF D=1 THEN VSM=VSM+ .04*PO(4)
4260 VFM=.9+PO(4)/20
4270 DC=(PO(1)+VFM)/(I(1)+VFM-VSM)
4280 PT=VSM*PO(4)*DC
4290 PSW=(I(1)+VFM)*PO(4)*(TR(D)+TF(D)+(2*TS(D)))*F*.5
4300 PDD=VFM*PO(4)*(1-DC)
4310 IF D=1 GOTO 4340
4320 DL=I(1)*.02*DC
4330 GOTO 4350
4340 DL=I(1)*I(1)*DC/300
4350 PD=PT+P