PowerPoint Presentation
Trng i Hc Bch Khoa H NiVin in T - Vin ThngB mn Nhp Mn KT in T -
Vin Thng
Nhm 43Phm Th Duy - 20111347Hong Cao Cng - 20111216 Huy Duy -
20111338 Phan nh ip - 20111440Trn Vn Li - 20111763
GVHD TS: Nguyn c Minh
H Ni , 11-2012
ti : Mch iu khin t xa s dng tia hng ngoi112Ni Dung Ti
P1.Gii thiu tngP2. Ch tiu k thut ca mchP4. Linh kin v chc nngP6.
Ti liu tham khoP3. Thit k mch
P5. Thc nghim
3Phn 1 Gii thiu tngCng ngh khoa hc pht trini sng ngi dn nng
caoGim bt sc ngiTit kim thi gian, cng scMch iu khin T xaPhn 2. Ch
Tiu K Thut Ca Mch4- Ngun cung cp 2.5-5v thung chn 5V- Dng tiu th cc
i ng vo =0 , IC=1.5mA- Tn s dao ng F0=37.9 KHz- Tn hiu ng ra l tn
hiu o- Mc cao ng ra VOH=VCC-0.5 V- Mc thp ng ra VOL=0.2 V- rng xung
=60us- Hot ng nhit t-10->+60 oC
51.Nguyn tc thu pht hng ngoi.a. Nguyn tc pht tn hiu.S khi ca mch
pht. [3]Phn 3. Thit K Mch[3] www.hoi quandientu.net6b. Nguyn tc thu
tn hiu.S khi mch thu [3]
[3] www.hoi quandientu.net
72.S nguyn l mcha. S nguyn l mch pht [3]
8b. S nguyn l mch thu [3]Tn linh kinGi thnh ( vn)IC PT22488000IC
PT22498000Mt Hng Ngoi KSM-603LM5000in Tr1000-2000T
in2000-3000Transistor4000-5000LED210-300Bng in400009Phn 4. Linh kin
v chc nng1 . Cc LINH KIN S DNG TRONG MCH910a) IC pht tn hiu hng
ngoi PT2248 [1]2. CHC NNG CC LINH KINc tnh :- c sn xut theo cng ngh
CMOS- Tiu th cng sut thp- Vng in p hot ng: 2.2V-5V- S dng c nhiu
phm- t thnh phn ngoing dng:- B pht hng ngoi dung trong cc thit b in
t nh:Television, Video Cassette Recode...
11[1] http://www.hoiquandientu.com12b) IC thu tn hiu v m ha hng
ngoi PT2249 [1]* c tnh :+ Tiu tn cng sut thp+ Kh nng chng nhiu rt
cao+ Nhn c ng thi 5 chc nng t IC pht PT2249+ Cung cp b to dao ng
RC+ B lc s v B kim tra m ngn nga s tc ng t nhng ngun sng khc nhau
nh n PL . Do khng nh hng n nhy ca mt thu.
- Chn 1 (Vss): l chn mass c ni vi cc m ca ngun in.- Chn 2 (R) :
l u vo tn hiu thu.- Cc chn 3 7 (H1 - H5) : l u ra tn hiu lin tc.-
Cc chn 8 12 (S5 S1): l u ra tn hiu khng lin tc. - Chn 14 v 13 (CODE
2 v CODE 3): to ra cc t hp m h thng gia phn pht v phn thu.- Chn 15
(OSC): dng ni vi t in v in tr bn ngoi to ra dao ng cho mch.- Chn 16
(Vcc): l chn c ni vi cc dng ca ngun cung cp.13* S chn ca PT2249
14[2]IC KSM 603LM IC gm 3 chnChn 1: chn tn hiu outChn 2: chn
GNDChn 3: chn VCC [2] www.ebay.com
15Mt s linh kin khcIC 4017trANSISTOR 7805intrT inLED
transistor
16PHN 5. Thc nghim1.Mt s hnh nh v mch
Mch phtMch thuMch hon chnh172. Video Demo
[ 1]: www.hoiquandientu.net[2]: www.ebay.com[3]:
www.google.com.vn[4]: www.dientuvienthonghue.vn[5]:
www.dientuvienthong.com[6]: www.youtube.com[7]: Gio trnh cu kin in
t - DHBKHN 18PHN 6. Ti liu tham kho19&NEVERSEE YOU AGAIN!
