1 셅 | 4 |
2 - 셅... | 14 |
3 , | 22 |
4 ⅅ... | 29 |
5 ⅅ... | 35 |
6 ⅅ... | 44 |
. | 52 |
1
: , OrCAD ; - .
- ().
7400 , . +5 . ( , ),
0 ≤ 0,4 (L ≤ 0,4 V),
1 ≥ 2,4 (H ≥ 2,4 V). 7400 7400. 133, 135, 555 .
4000 , 7400, ( +3 +18 ).
0 ≤ 0,1 (L≤0,1 V),
1 ≥ 2,4 (H ≥ 2,4 V). 4000 4000. 176, 561, 1554 .
1().
7400 4 , -Ż (. 1 ).
7402 4 , -Ż (. 1 ).
7404 6 (. 1 ).
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7408 4 , Ȼ (. 1 ).
7411 3 , Ȼ (. 1 ).
7432 4 , Ȼ (. 1 ).
7486 4 , Ȼ (. 1 ).
, :
0;
1;
X.
. 1.
.
. . 6.
. 1.
.
. . 5.
2.
Capture :
1. , , : C:\EMb-14-1\Ivanov\ Lab_rab1\Zadanie1.
2. Windows , :
<>→< >→< Cadence >→<Release 16.3>→<OrCAD Capture >, Capture . Capture, OrCAD Capture.
3. , File New, Projec.
4. New Project:
Name (, Zadanie1);
Analog or Mixed A/D ( -);
Location () ;
OK, New Project.
5. Create PSpice Project ( PSpice), Analog GND Symbol. opj ( ), OK. Capture Design Resources Zadanie1.dsn OrCAD Capture C:\ Ivanov\ Lab_rab1 Analog or Mixed A/D. File ()
Hierarchy (). File , :
+ Zadanie1.dsn;
+ SCHEMATIC1;
PAGE1, PAGE1 SCHEMATIC1:PAGE1, .
, (), , , Delete ().
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2. 1.
:
SCHEMATIC1:PAGE1;
/ .
SCHEMATIC1: PAGE1 . , , 7400 4000.
Place part Place Part 7400.
Part Place Part 7404. Capture 7404 Place Part. , Place Part Enter , . , . , . . , End Mode, .
2.2.
, . Capture , (Properties). Property
Editor ( ) Display Properties ( ). Property Editor , Display Properties .
2.3.
, () , .
PSpice Bias (/ ). SCHEMATIC1-bias, PSpice , , . OrCAD .
2.4.
Run PSpice : <PSpice>→<Run>.
: Enable Bias Voltage Display ( ), Enable Bias Current Display ( ) Enable Bias Power Display ( ). , .
2.5.
: <File>→<Save>, Save document ( ).
1. , 2, 7400, V1, V2, V3 5V. Bias .
, . .
2. , 3, U6 A 180 Om, 9.
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, , .
, 7486 1,967 V, 7432 , .
. 2.
3. , 3, BC548 B ( EBIPOLER) U6 A, 4. , U7 A .
, , Q1.
. 3. , 1,967 V
2 U7 A
. 4.
3.1. OrCad Capture.
3.2. 1, 2, 3.
:
1 2;
, 24 , .
1. , ?
2. 7400, 7408,7486.
3. 7402, 7404,7411, 7432.
4. 1.
5. 2.
6. 3.
1. . PSPICE: . . .: , 2008. 336 .: .
2. . . . : - ; . , 2007. 344 .: ., . ( ).
2
-
: - ; Probe; .
- . PSpice Transient ( ) SCHEMATIC1-transient. , PSpice , Probe . :
( ) . (, V(U1A:GND)) (, V (U1A:VCC)). : V , U1A , GND , VCC U1A;
, , , . : U1A:Y U1A; V(U1B:Y) U1B;
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, , , U1A:Y.
, . , in, out
. . , - , . - .
. 1. -
1. - , 1. , , 2 U1A. 495 us 505 us , U1A .
Lab_rab2, C:\EMb-14-1\Ivanov\Lab_rab2, Zadanie1 CAPTURE.
, , 1.
Place Part, Part : VPULSE, Source, . 7404 ( 7400) R1 ( Analog), R. .
1.1.
. VPULSE Property Editor, :
V1=0V ( );
V2=5V ( );
TD=0,5ms ;
TR=1us ( );
TF=1us ( );
PW=0,498ms ( );
PER=1ms () .
.
U1A in, U1B out, midl. < Place ()>→ <Net Alias( )>. Place Net Alias Alias: in OK, . (), V1 U1A. , End Mode ( ). U1A U1 midl U1B R1 out.
1.2.
Transient SCHEMATIC1-transient, .
1. ٸ New Simulation Profile ( ) : <PSpice>→<New Simulation Profile>. New Simulation ( ).
2. Name: (:) transient ( ) Create (), Simulation Settings transient ( ), .
3. Simulation Settings transient, PSpice. Analysis () Analysis type: ( :) Time Domain (Transient) ( ). .
Run to time: ( :) 2 ms. . Start saving data after: ( :) 0 s. Maxi-mum step size: ( :) 0,02 ms. , PSpice (Maximum step size), . , PSpice , , . , .
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4. ٸ : <>→<OK>, Simulation Settings transient .
1.3.
, . Windows Probe SCHEMATIC1 transient PSpice A/D [transient (active)]. , . , .
ٸ : <Trace ()>→<Add Traces> Add Traces, Add Traces. - , Currents, Power Alias Names . ٸ V (in), OK, . ٸ , Add Traces, V(out), OK, . midl, Add Traces midl, OK. , 2, .
(. 2), Probe : , . , : <Plot>→<Digital Size ( )>, Digital Plot Size Percentage of Plot to be Digital ( ) , 20, 20 % .
, . : <Plot>→<Axis Settings ( ...)> Axis Settings. X Axis ( ) Data Range ( ) User Defined ( ) . : 495us, : 505us OK, . , 3, .
. 2.
, 7404 ( 1) ( . 1 ), - , . 7404 ( 0) L=0 , ( 1) H=5 . 0,8 2 .
. 3.
PSpice , . . . 3 , Probe U1A 1,3 2 :
;
1,3 2 .
ٸ Toggle cursor, . U1 A 1,3 2 . .
2. , 1, : R1=10 KOm; : TR=5 us, TF=5 us, PW=490 us . 5 ms. Edit Simulation Profile ( ), Simulation Settings-transient Analysis Run to time 5 ms, Maximum step size 0,05 ms. ٸ : <>→<OK>, Simulation Settings-transient . V(in), V(out) midl. , 2.
, 490 us, 510 us. . , U1A . .
1. OrCad Capture.
2. 1 2.
:
1. 1.
2. 1 :
- (. 1);
VPULSE;
V(in), V(out), V(midl) V(in), V(out).
3. 2 :
, .
1. ( 0s 2ms) , :
V1=5 V, V2=5 V, TD=0 s, TR=0,1 us, TF=0,1 us, PW=498 us, PER=1 ms.
2. , 3. U1A, ?
3. , 490 us 510 us. U1 A?
4. 2 U1 B?
1. . PSPICE: . . .: , 2008. 336 .: .
2. . . . : - ; . , 2007. 344 .: ., . ( ).
3