DongCoDien (45).pdf

# DongCoDien (45).pdf - Trường ĐHBK Hà Nội-Đồ án...

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Tr ườ ng Đ HBK Hà N i -- ± -- Đồ án t t nghi p SV L ư u V ă n Th ng - 23 - L p K9C- T Đ H Đ 4 gi i phóng n ă ng l ượ ng do dòng rò trong mi n Bazow T 2 và b o v cho ti ế p giáp BE không ph i chi đ i n áp ng ượ c khi tranzitor khóa R 8 th ườ ng ch n vào kho n 100 ÷ 400 Ω ta ch n R 8 = 200 Ω R 6 và R 7 ta ch n = 2 K Ω Ch n đ i t Đ 4 Đ 5 Đ 6 Đ 7 là lo i có kí hi u Π 204 do Nh t B n ch ế t o có I tb = 800 mA và U im = 100V 4-3: khâu so sánh. Ta ch n khuy ế ch đạ i thu t toán OA 3 là lo i μ A 741 có các thông s sau U ng = ± 3 ÷ 22V U đ = ± 30V U nf = ± 15V I t = 100 mA Nhi t độ cho phép [ t ] = 55
• Spring '16
• Stephanie Moore

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