bai 13 khai niem mach dt dieu khien
TRANSCRIPT
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NhiÖt liÖt chµo mõng c¸c thÇy, c« gi¸o ®Õn dù sinh ho¹t chuyªn m«n
Nhãm : c«ng nghÖ 12
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M«n c«ng nghÖ líp 12
Bµi 13
Kh¸i niÖm vÒ m¹ch ®iÖn tö ®iÒu khiÓn
Mét sè m¹ch ®iÖn tö ®iÒu khiÓn ®¬n gi¶n
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KiÓm tra bµi cò
1. §ãng, ng¾t ®iÖn.
2. Thay ®æi tèc ®é.
3. Thay ®æi møc ®iÖn ¸p.
4. C¶ 3 ®¸p ¸n trªn.
ThiÕt bÞ ®iÒu khiÓn dïng ®Ó:
4. C¶ 3 ®¸p ¸n trªn.
§Ó thùc hiÖn ® îc viÖc nµy ng êi ta cã thÓ dïng biÖn ph¸p nµo sau ®©y.
1. §iÒu khiÓn b»ng tay.
2. §iÒu khiÓn b¸n tù ®éng.
3. §iÒu khiÓn tù ®éng.
4. C¶ 3 ®¸p ¸n trªn.4. C¶ 3 ®¸p ¸n trªn.
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M«n c«ng nghÖ líp 12
Bµi 13
Kh¸i niÖm vÒ m¹ch ®iÖn tö ®iÒu khiÓn
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I. Kh¸i niÖm vÒ m¹ch ®iÖn tö ®iÒu khiÓn1. Kh¸i niÖm.
2. NhiÖm vô.Dïng ®Ó xö lÝ, khuÕch ®¹i tÝn hiÖu vµ ® lÖnh ®iÒu khiÓn tíi ĐT®iÒu khiÓn.
M¹ch ®iÖn tö thùc hiÖn c¸c chøc n¨ng ®iÒu khiÓn ®ư îc coi lµ m¹ch ®iÖn tö ®iÒu khiÓn.
TÝn hiÖu vµo M¹ch ®iÖn tö
®iÒu khiÓn®èi t îng
®iÒu khiÓn
TÝn hiÖu ph¶n håi
3. S¬ ®å khèi tæng qu¸t.
ThÕ nµo lµ m¹ch ®iÖn tö ®iÒu khiÓn ?
M¹ch ®iÖn tö ®iÒu khiÓn dïng ®Ó lµm
g× ?
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VÝ dô mét sè thiÕt bÞ ®iÒu khiÓn b»ng ®iÖn tö
M« h×nh ®iÒu khiÓn trong c«ng nghiÖp tõ m¸y tÝnh
§éng c¬ 1
Bé ®iÒu khiÓn
Mµn h×nh gi¸m s¸t vµ ®iÌu khiÓn
Bé ®iÒu khiÓn
Bé ®iÒu khiÓn
Bé ®iÒu khiÓn
§éng c¬ 2
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M¸y gia c«ng c¬ khÝ ® îc ®iÒu khiÓn tõ mµn h×nh m¸y tÝnh (m¸y CNC)
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®éng c¬ b íc ® îc ®iÒu khiÓn b»ng m¹ch ®iÖn tö
§éng c¬ b íc ® îc øng dông nhiÒu trong ngµnh tù ®éng ho¸, trong c¸c thiÕt bÞ cÇn ®iÒu khiÓn chÝnh x¸c. VÝ dô: §iÒu khiÓn robot, ®iÒu khiÓn tiªu cù trong c¸c hÖ quang häc, ®iÒu khiÓn ®Þnh vÞ trong c¸c hÖ quan tr¾c, ®iÓu khiÓn b¾t, b¸m môc tiªu trong c¸c khÝ tµi quan s¸t, ®iÒu khiÓn lËp tr×nh trong c¸c thiÕt bÞ gia c«ng c¾t gät, ®iÒu khiÓn c¸c c¬ cÊu l¸i ph ¬ng vµ chiÒu trong m¸y bay...Trong c«ng nghÖ m¸y tÝnh, ®éng c¬ b íc ® îc sö dông cho c¸c lo¹i æ ®Üa cøng, æ ®×a mÒm, m¸y in..
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Trung t©m §iÒu khiÓn ®Ìn tÝn hiÖu giao th«ng
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M¹c
h ®
iÖn
tö
®iÒ
u k
hiÓ
n
§iÒu khiÓn tÝn hiÖu
Tù ®éng ho¸ c¸c m¸y mãc, thiÕt bÞ
§iÒu khiÓn c¸c thiÕt bÞ d©n dông
§iÒu khiÓn trß ch¬i, gi¶i trÝ
II. C«ng dông
M¹ch ®iÖn tö ®iÒu khiÓn lµ ®Ó ®iÒu khiÓn ho¹t ®éng cña c¸c thiÕt bÞ, m¸y mãc. Nã cã rÊt nhiÒu c«ng dông kh¸c nhau.
Em h·y nªu c¸c øng dông cña m¹ch ®iÖn tö mµ em ®· biÕt
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C«n
g s
uÊt
lín
§iÒ
u k
hiÓ
n t
èc ®
é
§iÒ
u k
hiÓ
n t
Ýn
hiÖ
u
C«n
g s
uÊt
nh
ỏ
§iÒ
u k
hiÓ
n c
ứn
g
bằn
g m
¹ch
điệ
n t
ử
§iÒ
u k
hiÓ
n
cã lËp
tr×
nh
Ph
©n
lo¹i
th
eo c
«n
g s
uÊt
Ph
©n
lo¹i
th
eo c
høc n
¨ng
Ph
©n
lo¹i
th
eo m
øc ®
é
tù ®
én
g h
o¸
M¹ch ®iÖn tö ®iÒu khiÓn
III. Ph©n lo¹i
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C©u 1. Theo møc ®é tù ®éng hãa cã c¸c m¹ch
§iÒu khiÓn b»ng m¹ch rêi
§iÒu khiÓn b»ng vi m¹ch
§iÒu khiÓn b»ng vi xö lý cã lËp
tr×nh
§iÒu khiÓn tèc ®é
Abcd
§óng råi! Chóc mõng b¹n.
Sai råi ! B¹n chän ®¸p ¸n kh¸c.
§iÒu khiÓn b»ng vi xö lý cã lËp
tr×nh
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M¹ch t¹o xung.
TÝn hiÖu giao th«ng.
B¸o hiÖu vµ b¶o vÖ ®iÖn ¸p.
§iÒu khiÓn b¶ng ®iÖn tö.
Abcd
§óng råi! Chóc mõng b¹n.Sai råi !
B¹n chän ®¸p ¸n kh¸c.
M¹ch t¹o xung.
C©u 2. M¹ch nµo sau ®©y kh«ng ph¶i lµ
m¹ch ®iÖn tö ®iÒu khiÓn
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§iÒu khiÓn tÝn hiÖu.
§iÒu khiÓn cã c«ng suÊt nhá.
§iÒu khiÓn b»ng phÇn mÒm m¸y
tÝnh.
§iÒu khiÓn cã c«ng suÊt lín.
Abcd
§óng råi! Chóc mõng b¹n.
Sai råi ! B¹n chän ®¸p ¸n kh¸c.
§iÒu khiÓn tÝn hiÖu.
C©u 3. M¹ch ®iÖn tö ®iÒu khiÓn theo chøc n¨ng
lµ
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MẠCH ĐÌN giao th«ng
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MẠCH ĐÌN b¸o s¸ng
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®Ìn h¶i ®¨ng
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MẠCH ĐÌN QUẢNG CÁO
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MẠCH ĐÌN QUẢNG CÁO
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MẠCH ĐÌN biÓn QUẢNG CÁO
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MẠCH ĐÌN ch÷ ch¹y
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B¶ng ®iÖn tö
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B¶ng ®iÖn tö ng©n hµng
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B¶ng ®iÖn tö giao dÞch chøng kho¸n
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B¶ng ®iÖn tö b¸o thay ng êi
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m¸y cnc
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D©y chuyÒn s¶n xuÊt thÐp ®Þnh h×nh
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D©y chuyÒn ®ãng gãi
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D©y chuyÒn hµn « t« tù ®éng
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m¸y tiÖn cnc
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m¸y tiÖn cnc
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M¸y CNC
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®iÒu chØnh m¸y tiÖn cnc
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®iÒu chØnh m¸y tiÖn cnc
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M¸y khoan CNC
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M¸y æn ¸p
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M¸y hót bôi tù ®éng
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Tñ l¹nh
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M¸y ®iÒu hoµ
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M¸y giÆt
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Dµn ©m thanh
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M¸y T¨ng ©m
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®Ìn chiÕu s¸ng tù ®éng
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M¸y b¬m n íc tù ®éng
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®Çu dÜa
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Qu¹t ®iÖn ®iÒu khiÓn tõ xa
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BÕp tõ ®iÒu khiÓn tõ xa
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B×nh n íc nãng ®iÒu khiÓn tõ xa
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M¸y bay ®iÒu khiÓn tõ xa
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§Üa bay ®iÒu khiÓn tõ xa
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« t« ®iÒu khiÓn tõ xa
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Tµu thuû ®iÒu khiÓn tõ xa
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Tr¹m vò trô iss
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VÖ tinh vinasat 1
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Tµu vò trô con thoi
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VÖ tinh soyuz
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VÖ tinh Koreasat - 51
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vÝ dô
§Ó t¾t, më, thay ®æi tèc ®é cña chiÕc qu¹t ®iÖn nµy ng êi ta cã thÓ dïng c¸ch nµo sau ®©y? BiÖn ph¸p nµo cã u ®iÓm nhÊt, t¹i sao?1. Dïng tay ®iÒu khiÓn nót Ên trªn
qu¹t.
2. Dïng ®iÒu khiÓn tõ xa ®Ó ®iÒu khiÓn.
3. Dïng tay rót phÝch ®iÖn.C¸c c¸ch nµy kh¸c nhau ë
®iÓm nµo?