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各位大大,小弟用COMPOSER畫出了LATCH UP的等效電路圖,並轉成SP檔,其SP檔內容如下6 ]0 d4 D2 j) S3 R: A6 @( s
.lib 'mm0355v.l' TT2 b2 n$ W2 N, `# h# u- z
*.BIPOLAR
3 l+ ]# C. b! \ T, D*.RESI = 2000 ( h/ }: F1 m9 T+ q
*.RESVAL
" [! m: `1 \+ ? ], }*.CAPVAL
* w/ K0 L& l5 f9 v- H {; e- i G% W*.DIOPERI; \# g) y# c/ A9 k) R! k% S l
*.DIOAREA
% f7 ~6 _# ~. B& G1 A" h! |0 ?, N*.EQUATION
5 [2 D1 S8 E! }# d1 A- ?*.SCALE METER* s/ _4 S5 S A1 d8 f- _
*.MEGA
$ t+ c( F: w% @: |*.GLOBAL gnd; R) x+ \$ Q- J
+ vdd
- g9 J- n8 Y! Z3 W* n& S. r9 l7 l( p, Q6 J7 M8 k' G! Z! s
*.PIN gnd& ~. o5 H+ H9 {+ e9 I2 a% A
*+ vdd9 ~ O4 {! }8 _' E c5 q
vdd vdd 0 dc 3.3v6 g, U8 [9 E5 r; m6 d3 A7 a8 M% w
.SUBCKT latch_up* \4 M( K7 y1 r# R. W$ L
*.PININFO4 s$ j; ]4 }0 H9 w8 v3 B
RRS gnd net1 20K $[RP]
1 Z' m% ~ ]- V1 o& i! X: Q( kRRW net5 vdd 20K $[RP]+ G; {# f3 B7 G" d
QQ1 net5 net1 gnd NP .MODEL npn10/ V K @% [# }+ T6 J2 Z
QQ0 net1 net5 vdd PN .MODEL pnp10
1 Q, f$ G3 p ]- n6 Z T5 A.ENDS
: X) R8 j/ H5 R M9 C- [+ k小弟只會作到上述步驟...
, f5 i" Z( B2 D, ^所以想請教一下,
% u; a2 V I7 x9 P* V小弟該下什麼語法才能模擬出LATCH UP的波形呢?
6 n2 B( w* [5 e5 Z& l' B O+ W: i煩請會的大大指導一下,謝謝。6 |. A! E& O3 Q5 K. J j2 u
6 P5 @. S; U, ~- A; o9 {% [[ 本帖最後由 n3e050 於 2009-6-4 05:50 AM 編輯 ] |
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