Реферат: Математическое моделирование биполярных транзисторов типа p-n-p

о) расчёт емкости CBC.

CBC= CJC+CDC;

3. Описание программы

Program bipolar;

uses {wincrt,windos}crt,dos,graph;

Label 1;

var

t1,t2,t3,t4,

Uc, Uccs, Ucb, Uec, Ueb, VA, VJC, VJE,

Is0, Is, Ieb, Icb ,Ib ,Ic, Iy,Ik,Ie,

CJC0, CJE0, CBE, CJE, CDE, CBC, CJC, CDC,

RB,RC,RJ,

T, TNOM, TCB,

Kyf,a,BF, BR, EG, TAUF, TAUR, MJC, MJE, CCS, K, FIt, q,expon: extended;

ii,col,row:integer; { extended 3.4e-4932..1.1e4932}

an,key:char;

function st(a:extended; b:extended):extended;

begin

if b<0 then

begin

if (-1*b * ln(a)) < 1.1356523e4 then

begin

st:=1/ (exp((-1*b) * ln(a)));

end

else st:= 1;

end

else

begin

if (b * ln(a)) > 1.1356523e4 then