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2. ELECTRONICS WORKBENCH.
; (), () (), .5.1
.5.1
EWB . , Model Circuit
(. . 5.2, , EWB 5.0).
.5.2 ij .
- , A (Saturation current Is [IS]);
- H21, (Forward current gain coefficient BF [BF]);
- ( ) (Reverse current gain coefficient BR [BR]);
- ' , (Base ohmic resistance rb [RB]);]
- ' , (Collector ohmic resistance rc [RC]);
- ' , (Emitter ohmic resistance re [RE]);
- , (Zero-bias B-E junction capacitance [JE]);
- , (Zero-bias - E junction capacitance Cc [CJC]);
- -, (Substrate capacitance Cs [CJS]);
- , (Forward transit time t [TF]);
- , (Rvrs transit t[TR]);
- (-E junction grading coefficient me [ME]);
- ( junction grading coefficient me [MC]);
- , U max, (Early voltage VA [VA]);
- , A (Base-Emitter Leakage Saturation Current Ise[ISE]);
- ҳ , I max, A (Forward Beta High-Current Knee-Point Ikf [IKF]);
- (Base-Emitter Leakage Emission Coefficient Ne [NE]).
- -, ( junction potential pc[VJC]).
- -, (- junction potential [VJE]).
, , EWB 5.0 , EWB 4.1- ' -. , .3. ֳ :
- NF- ;
- NR- ;
- IKR , , ;
- NC ;
- RBM . ;
- IRB , 50% RB-RBM, A;
- XTF , TF -;
- VTF -, TF, ;
- ITF , TF, ;
- PTF F=1/(2piF), .;
- VJS -, ;
- MJS -;
- XCJC -;
- FC ' ;
- EG , ;
- ;
- XI ;
- F -;
- AF- -;
- TNOM- ;
EWB -. .
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.5.3 .
.5.4
. ( -) -. ³ :
Ie=A I'eo-aCI'ko; (1)
Ik=A aI'eo-CI'ko; (2)
A=exp(Ueb/Ut)-l; C=exp(Ukb/Ut)-l; I'eo=DIeo; D=1-a*a';Ieo,Iko ; a,a' ; Ukb, Ueb .
. 4.4. ѳ Ie, f (Ueb) Ukb Ie Ueb. ѳ Ik= f(Ubk) Ie Ubk, Ik.
|H21| . 4.5. Ie (5 ), Ii (1 , ), Ib Ik . b ( ' ). |H21|=Ik/Ib . , 1 , (. . 4.5), 953/47,8=19,94 ( 2N2904A 20).
.5.5 - .
.4.6 :
Model IDEAL NPN: IDEAL --.
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- .model KT361A PNP (Is=23.68f ti=3 g=1.11Vaf=60 Bf90Ne= 1.206
- + Ise=23.68f Ikf=.1224Xtb=1.5Br=4.387G Nc=1.8 Isc=900p Ikr=20m Rc= 5
- + Cjc=7p Mjc=.333Vjc=.7Fc=.5Cje=10p Mie=.333Vje=.7
- + Tr=130.5n Tf=0.1n Itf=40m Vtt=80Xtf=l.lRb= lO)
5.6 - .
- .model KT31SA AKO:KT361A NPN (Bf=108 DEV=20% 1 RE=0.1
- +TRE1=1.5 RB=3 TRB1=1.2 TRC1=1.1RBM=2TRM1=1.3)
- .model KT3102A NPN (Is=5.258f Xti=3 Eg=l.ll Vaf=86 Bf=185 Ne=7.428
- +Ise=28.2ln Ikf=.4922 Xtb=1.5 Var=2 SBr=2.713 Nc=2 Isc=21.2p.
- + Ikr=.2S Rb=52 Rc=1.6S Cjc=9.921p Vjc=.65 Mjc=.33Fc=.5
- + Cje=11.3p Vje=.69 Mje=. Tr=57.71n Tf=611.5p Itf=.52 Vtf=80Xtf=2)
- .model KT3102B NPN (Is=3.628f Xti=3 Eg=l.ll Vaf=72 Bf=303.3 Ne=13.47
- + Ise=43.35n IM-96.35m Xtb=1.5 Var=30 Br=2.201Nc=2Isc=5.5p
- + Ikr=.l Rb=37 Rc=1.12 Cjc=11.02p Vlc=.65 Mjc=.33Fc=.S
- + Cje=13.31p Vje=.69 Mje=.33 Tr=41.67n Tf=493.4p Itf=.12 Vtf=50 Xtf=2)
- .model KT3107A PNP (Is=5.2f Xti=3 Eg=l.ll Vaf=86Bf=140Ne=7.4
- + Ise=28n Ilcf=,49 Xtb=1.5 Var=2S Br=2.7 Nc=2 Isc=21p
- + Ikr=.25 Rb=SO Rc=1.65 Cjc=10p Vjc=.6S Mjc=.33Fc=,5
- + Cje=11.3p Vje=.7 Mje=.33 Tr=58n Tf=62p Itf=.52Vtf=80Xtf=2)
- .model KT3I07B AKO:KT3107A (Bf=25O)
- .model KT312A NPN (Is=21f Xti=3 Eg-1.11 Vat= 126.2 Bf=86.76Ne= 1.328
- + Ise=189f Ikf=.164 Nk=.5 Xtb=1.5 Br=l Nc=l.385 Isc=66.74p Ikr= 1.812
- + Rc=0.897 Rb=300 Cjc=8p Mjc=.29 Vjc=.692 Fc=.S Cje=26.53p Mje=.333
- + Vje=,75 Tr=10nTf=1.743n Itf=l)
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1. Electronics Workbench.
2. ϳ . : File/New File/Save as. Save as ' , .
3. . 5.7-5.9.
5.7 - ().
4. Electronics Workbench. (Sources, Basic, Diodes, Transistors, Analog Ics, Mixed Ics, Digital Ics, Logic Gates, Digital, Indicators, Controls, Miscellaneous, Instruments), , .
5.8 - ().
5. ' . ' , , . (). , (rotate), (flip), / (copy/cut), (paste).
5.9 - ().
6. . .
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8. , . . Pause.
9. Analysis.
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1. 䳿 , .
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2. ELECTRONICS WORKBENCH.
' , , ( ). 糿 , , . .
. ( ). . , , . . '.
, , , , 䳺 . ' , .
' , - . n . 1952 . EWB 4.1 : n- - . 4.1 , 1 (gate)- ; 2 - (source) , ( , ); 3 (drain) -, .
. 4.2 ( EWB 5.0).
4.1 n- () - () -.
- , (Threshold voltage V [VTO]) - , , . , ,
- , /2 (Transconductance coeificient []).
- , 1/ (Channel-length modulation lm[LAMB-DA]).
- ᒺ , (Drain ohmic resistance Rd [RD]).
- ' , (Source ohmic resistance Rs [RS]).
- p-n , A (Gate-junction saturation current Is [IS]) p-n .
- , (Zero-bias gate drain junction capacitance Cgd [CGD]).
- , , (Zero-bias gate source junction capacitance Cgs [CGS]).
- p-n , B (Gate junction potential pb[PB]) p-n .
EWB 5.0 . ³, EWB PSpise.
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4.2. ³ p-n
. 4.3 p-n .)
㳺 (3), (), ().
.4.3. , - Ug, VT, Ucc, Ud - Id . Ug Ud Id. Ug, Id , . Id=f(Ud), S=dId/dUg, , .
- - (-). , ( ), -.
- :
- - ;
- - ( 䳺 , ).
EWB - : n- - , . 4.4., 4 , . 4.1. - : , . - (. 4.4).
)
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.4.4 - () () .
ij - .4.5 (-). . 4.2 , ( , EWB 5.0).
- , (Surface potential ph [PHI]).
- , 1/2 (Bulk-threhold parametr g [GAMMA]).
- , (Gate-bulk capacitance Cgb[CGB]).
- - , (Zero bias bulk- drain junction capacitance Cbd [CBD]).
- - , (Zero-bias bulk-source junction capacitance Cbs [CBS])
- , (Bulk-junctimli potentisd []).
EWB 5.0 - . -. :
- LD 糿, ;
- RS . ;
- JS -, /2;
- CJ -- - , /2;
- CJSW -, /;
- J- -;
- GS- - ( 糿), /;
CGDO - ( 糿), /;
. 4.5 () - ij -.
- CGBO - ( ), /;
.4.5 ) ij -.
- NSUB , 1/3;
- NSN 1/3;
- TOX , ;
- TPG - ; +1 , , -1 , 0 ;
. 4.5 ) ij -.
- UO - , 2//;
- FC ' ;
- . 4.6 - Ug Ub. S , Sd=dId/dUd; M=Ud/Ug Rd=dUd/dId .
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4.6. -.
. 4.7 :
- .model KT361A PNP (Is=23.68f ti=3 g=1.11Vaf=60 Bf90Ne= 1.206
- + Ise=23.68f Ikf=.1224Xtb=1.5Br=4.387G Nc=1.8 Isc=900p Ikr=20m Rc= 5
- + Cjc=7p Mjc=.333Vjc=.7Fc=.5Cje=10p Mie=.333Vje=.7 + Tr=130.5n Tf=0.1n Itf=40m Vtt=80Xtf=l.lRb= lO)
- .model KT31SA AKO:KT361A NPN (Bf=108 DEV=20% 1 RE= 0.1
- +TRE1=1.5 RB=3 TRB1=1.2 TRC1=1.1RBM=2TRM1= 1.3)
- .model KT3102A NPN (Is=5.258f Xti=3 Eg=l.ll Vaf=86 Bf=185 Ne= 7.428
- +Ise=28.2ln Ikf=.4922 Xtb=1.5 Var=2 SBr=2.713 Nc=2 Isc= 21.2p.
- + Ikr=.2S Rb=52 Rc=1.6S Cjc=9.921p Vjc=.65 Mjc=.33Fc=.5
- + Cje=11.3p Vje=.69 Mje=. Tr=57.71n Tf=611.5p Itf=.52 Vtf=80Xtf= 2)
- .model KT3102B NPN (Is=3.628f Xti=3 Eg=l.ll Vaf=72 Bf=303.3 Ne= 13.47
- + Ise=43.35n IM-96.35m Xtb=1.5 Var=30 Br=2.201Nc=2Isc= 5.5p
- + Ikr=.l Rb=37 Rc=1.12 Cjc=11.02p Vlc=.65 Mjc=.33Fc=.S
- + Cje=13.31p Vje=.69 Mje=.33 Tr=41.67n Tf=493.4p Itf=.12 Vtf=50 Xtf= 2)
- .model KT3107A PNP (Is=5.2f Xti=3 Eg=l.ll Vaf=86Bf=140Ne= 7.4
- + Ise=28n Ilcf=,49 Xtb=1.5 Var=2S Br=2.7 Nc=2 Isc= 21p
- + Ikr=.25 Rb=SO Rc=1.65 Cjc=10p Vjc=.6S Mjc=.33Fc=,5
- + Cje=11.3p Vje=.7 Mje=.33 Tr=58n Tf=62p Itf=.52Vtf=80Xtf= 2)
- .model KT3I07B AKO:KT3107A (Bf= 2SO)
- .model KT312A NPN (Is=21f Xti=3 Eg-1.11 Vat= 126.2 Bf=86.76Ne= 1.328
- + Ise=189f Ikf=.164 Nk=.5 Xtb=1.5 Br=l Nc=l.385 Isc=66.74p Ikr= 1.812
- + Rc=0.897 Rb=300 Cjc=8p Mjc=.29 Vjc=.692 Fc=.S Cje=26.53p Mje=.333 + Vje=,75 Tr=10nTf=1.743n Itf= l)