, SADCO S m
3.So dO kh6ng ch€ tung clip cOng sulit 10 di~n trQ
So d6 hlnh 6-9 dung f" HLJ ~illiJ'
~
cho Ib c6ng 8u4t nha, ;
'I''' + I'o!',.ht;
t6i d.a B + 10 kW, thea
rim~ch~
10 dip khac nhau, ti1 '1'/1
~I'''' 1 0 d.:!n 100% cOng suilt 1 0 d.:!n 100% cOng suilt
",IlO
+
dinh muc. So dd dung U JY'" leI " u :pc "d<I
cac vi m(l,ch CMOS. PC I (OX
Z iC"
M~ch lR, IVD, 2VD, JR J~
2R, 3VD t!.iO cae j~ I'T
ra
t'R I'J
xung sau c~u nAn ~J
5VD khi di~n lip !uai B , Yo • 7'<
chuyen qua O. Trigo ~" 11111): .L
Smit t~o boi 2 phlin tu
NOR 11>. DDl.l va DD 1.2 se hoan thi~n d~ng cae xung nhtp tr~n va dlla vAa cua van eN cua bO dl!m
2-10 co giAi rna DD2.
Cae 6n tip IVD, 2VD
lam nhi~m V\! chOng
nhi~u cho bl) di~ti.
chinh tranh chuydn d6i sai cua bQ dem DD2.
M!;lch 4VD, Ie va 2C t/ilO di~n lip ml)t chi~u lam ngu6n nuai
cae vi m!ilch.
'. Cae xung nh~p dlldng tCli bO dem, co dl) dAi xung (thbi gian xung) T/2 bang mqt nva
chu kl di~n lip htdi vA l~ch nhau ve thai gian bang T/2. (blnh 6-10a). Khi d~u ra 0 cua bl) dem co mue lOgic 1 thi da:u ra cua trigd RS t!;lO hoi 2 phan to: NOR DD1.3 va DD1.4 co mue lOgic 1 va transistor VT thOng, dAn to'i thyristor VS tbang. Tai day dOt
Rdd cO dong ch!;lY qua. Thyristor s~ thOng cho tOi khi da:u ra noi v{Ji con trllQ't chuyen d6i S (hlnh ve 1ft dliu ra 7) cd mue l!'lgic 1. Luc d6 trigd RS chuy~n tr!;lng thai va thyristor kh6a.
Nhll v~y> cOng SUItt dlp cho tAi ung vlJi 70% (d 1~ nghich v{Ji dl) rdng cac xung a dtlu ra tTigo RS (hlnh 6-10d). DI) rdng nay thay d6i nhO' can trllQt chuy~n d6i S. Bi~n
dtj xung {J hinh 1-IOd (di~m 5 tr~n sa deS blnh 6-9) co dtj Ion 200i2V.
N~u can trttQt chuydn d6i S thi€t l~p II vi tn 100% thl trigo RS khOng d6i tr~ng thai, gift nguy@n tr$ng thai dgu ra co mllc lOgic 1 va thyristor IUOn thOng, dAn den tAi
Rdd dllQc clp dliy du cOng sullt.
d sa d6 nAy, thyristor dong val tro ml)t khoa m!;lch (g6c mll luOn bhng 0).
Cdc 16 di~n tra hi~n dung II Vi~t Nam cO nhi~u kil1u lo(\i va ngu6n g6c kM.c nhau. Da ph£in la 10 Li~n Xo (cU.), mOt s6 khdc cua Duc, Ti~, Hung v.v ... va mOt s6 16 thi
nghi~m ho~c 10 cOng sulit nh6 dung sliy, nung, nhi~t luy~n cUa MI, Phdp, Y, Nh~t, Dai Loan v.v ... MOt s6 Ib do Vi~t Nam thiet kl'!, cM' t~o' dl,!a theo ti@u chutn Li~n XO. N6i chung cac lo(\i 10 d~u co kl'!t cllu tllong tl,! nhau vCJi dAi cOng sullt tu vw kW den hang trAm kW va dAi nhi~t dO dlldi 2000°C.
.... ,(h/
...,JJIJ/J
moh 6-11. La tu6ng.
Lo bu6ng la. lo~i 10 v~n nAng nh1h (hl.nh 6-11). La g6m bu6ng nung hinh hOp chu nh~t vdi kich thu(fc tuy cOng su1lt 10. Bu6ng ", nung dl1l;1C 16t each ~hi~t vA t~o thanh ao 10 4. Ao la, xa.y bang gl;lCh chiu lua co nhi~u lop. Lllp ngoro cung bAng g~ch samOt hay be>t samOt
cO de> cach nhi~t cao. BQc ngoai lil vo tOn 3 day 5 + 10 mm. Day 10 hAng tMp chiu nhi~t,
duc li~n hoi;l.c ghep l~i tu nhung mi€!ng nho hoi;l.c day 1(') xAy bAng g~ch chiu lua. ThAnh trong cua bu6ng 10 c6 d~t day d6t 5. Da.y ddt co th~ b6 tri ca phia day vA dtnh. Ctta 10 tuy ki~u va. cOng suEll 10, cO th~ ma bl\ng tay (kieu don bay hay co d6i trQng) hoi;l.c bhg cd c1lu Cd khi 1 truy~n d¢ng bAng d¢ng cd di$n. Cua la, co tM co 16 tham d~ quan sat phia trong 10. N goru ra, 10 con e6 dciu ra c~a da.y ddt 2, etta
khi 6 d~ dA.n khi hao v~ vAo 10 (do kMng khi d~ thAm nh~p voo bu6ng 10 qua dta la, gay
hi~n tl1l;1ng oxy hoa, thoat eacbon eua v{lt gia nhi~t), dau do nhi~t a dlnh 10 hay Mn hOng v.v ...
Hl.nh 6-12, hlnh 6-13 va. hlnh 6-14 lA k~t diu cua cae lo~i 10 dit;ln tra.
Hloh 6-11. La gi~ng. 1 - Co c411 ~g ndp quay; 2 -Ndp quay,. 3-Vd/o; ~-LapMJ; 5 - Cdc 14m dM huang (khl),. 6 - Gid /lJ (ct1 M); 7-Tt1mddy(/o); 8-Dtryd6r; 9-D&tJdlmtTukh{,. lO-C!1ukhl; 11 -Dau do nhi~1
'. Hinh 6-13. 1.6 chl,lp. J - Khung ch!/p; 3-Khungb~; 5--('i -D{ty ddt a chl,lp 8 - Mup /lJ (muffler); 10 -Nhi?r kl (Mift d{mg). 2 - Lop 161. ch!/p; 4 - Lap /& bf; 7 - Dbj at trin be; 9 - Clla kh!. 2 _1 Hioh 6-14. L6 JThJ6i.