{"id":2160,"date":"2018-07-09T04:09:21","date_gmt":"2018-07-09T04:09:21","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=2160"},"modified":"2025-03-07T16:48:34","modified_gmt":"2025-03-07T09:48:34","slug":"co-ban-ve-diot-diode","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=2160","title":{"rendered":"C\u01a1 b\u1ea3n v\u1ec1 Diode"},"content":{"rendered":"
\"C\u01a1
C\u01a1 b\u1ea3n v\u1ec1 Diode<\/span><\/figcaption><\/figure>\n

1. Ch\u1ea5t b\u00e1n d\u1eabn<\/strong><\/span><\/h2>\n

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1.1 Ch\u1ea5t b\u00e1n d\u1eabn l\u00e0 g\u00ec?<\/span><\/h3>\n

Ch\u1ea5t b\u00e1n d\u1eabn l\u00e0 nguy\u00ean li\u1ec7u \u0111\u1ec3 s\u1ea3n xu\u1ea5t ra c\u00e1c lo\u1ea1i linh ki\u1ec7n b\u00e1n d\u1eabn nh\u01b0 Diode<\/strong>, Transistor, IC m\u00e0 ta \u0111\u00e3 th\u1ea5y trong c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ng\u00e0y nay.<\/span><\/p>\n

Ch\u1ea5t b\u00e1n d\u1eabn l\u00e0 nh\u1eefng ch\u1ea5t c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m trung gian gi\u1eefa ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n, v\u1ec1 ph\u01b0\u01a1ng di\u1ec7n ho\u00e1 h\u1ecdc th\u00ec b\u00e1n d\u1eabn l\u00e0 nh\u1eefng ch\u1ea5t c\u00f3 4 \u0111i\u1ec7n t\u1eed \u1edf l\u1edbp ngo\u00e0i c\u00f9ng c\u1ee7a nguy\u00ean t\u1eed, \u0111\u00f3 l\u00e0 c\u00e1c ch\u1ea5t Germanium (Ge) v\u00e0 Silicium (Si)<\/span><\/p>\n

T\u1eeb c\u00e1c ch\u1ea5t b\u00e1n d\u1eabn ban \u0111\u1ea7u (tinh khi\u1ebft) ng\u01b0\u1eddi ta ph\u1ea3i t\u1ea1o ra hai lo\u1ea1i b\u00e1n d\u1eabn l\u00e0 b\u00e1n d\u1eabn lo\u1ea1i N v\u00e0 b\u00e1n d\u1eabn lo\u1ea1i P, sau \u0111\u00f3 gh\u00e9p c\u00e1c mi\u1ebfng b\u00e1n d\u1eabn lo\u1ea1i N v\u00e0 P l\u1ea1i ta thu \u0111\u01b0\u1ee3c Diode hay Transistor.<\/span><\/p>\n

Si v\u00e0 Ge \u0111\u1ec1u c\u00f3 ho\u00e1 tr\u1ecb 4, t\u1ee9c l\u00e0 l\u1edbp ngo\u00e0i c\u00f9ng c\u00f3 4 \u0111i\u1ec7n t\u1eed, \u1edf th\u1ec3 tinh khi\u1ebft c\u00e1c nguy\u00ean t\u1eed Si (Ge) li\u00ean k\u1ebft v\u1edbi nhau theo li\u00ean k\u1ebft c\u1ed9ng ho\u00e1 tr\u1ecb\u00a0 nh\u01b0 h\u00ecnh d\u01b0\u1edbi.<\/span><\/p>\n

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1.2 Ch\u1ea5t b\u00e1n d\u1eabn lo\u1ea1i N<\/span><\/h3>\n

* Khi ta pha m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf ch\u1ea5t c\u00f3 ho\u00e1 tr\u1ecb 5 nh\u01b0 Phospho (P) v\u00e0o ch\u1ea5t b\u00e1n d\u1eabn Si th\u00ec m\u1ed9t nguy\u00ean t\u1eed P li\u00ean k\u1ebft v\u1edbi 4 nguy\u00ean t\u1eed Si theo li\u00ean k\u1ebft c\u1ed9ng ho\u00e1 tr\u1ecb, nguy\u00ean t\u1eed Phospho ch\u1ec9 c\u00f3 4 \u0111i\u1ec7n t\u1eed tham gia li\u00ean k\u1ebft v\u00e0 c\u00f2n d\u01b0 m\u1ed9t \u0111i\u1ec7n t\u1eed v\u00e0 tr\u1edf th\u00e0nh \u0111i\u1ec7n t\u1eed t\u1ef1 do => Ch\u1ea5t b\u00e1n d\u1eabn l\u00fac n\u00e0y tr\u1edf th\u00e0nh th\u1eeba \u0111i\u1ec7n t\u1eed (mang \u0111i\u1ec7n \u00e2m) v\u00e0 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u00e1n d\u1eabn N (Negative: \u00e2m).<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n

1.3 Ch\u1ea5t b\u00e1n d\u1eabn lo\u1ea1i P<\/span><\/p>\n

Ng\u01b0\u1ee3c l\u1ea1i khi ta pha th\u00eam m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf ch\u1ea5t c\u00f3 ho\u00e1 tr\u1ecb 3 nh\u01b0 Indium (In) v\u00e0o ch\u1ea5t b\u00e1n d\u1eabn Si th\u00ec 1 nguy\u00ean t\u1eed Indium s\u1ebd li\u00ean k\u1ebft v\u1edbi 4 nguy\u00ean t\u1eed Si theo li\u00ean k\u1ebft c\u1ed9ng ho\u00e1 tr\u1ecb v\u00e0 li\u00ean k\u1ebft b\u1ecb thi\u1ebfu m\u1ed9t \u0111i\u1ec7n t\u1eed\u00a0 => tr\u1edf th\u00e0nh l\u1ed7 tr\u1ed1ng (mang \u0111i\u1ec7n d\u01b0\u01a1ng)\u00a0 v\u00e0 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ch\u1ea5t b\u00e1n d\u1eabn P.<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\u00a0 \u00a0 \u00a0\u00a0<\/span><\/p>\n

2. Diode (\u0110i \u1ed1t) B\u00e1n d\u1eabn<\/strong><\/span><\/h2>\n

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2.1 Ti\u1ebfp gi\u00e1p P – N v\u00e0 C\u1ea5u t\u1ea1o c\u1ee7a Diode b\u00e1n d\u1eabn<\/span><\/h3>\n

Khi \u0111\u00e3 c\u00f3 \u0111\u01b0\u1ee3c hai ch\u1ea5t b\u00e1n d\u1eabn l\u00e0 P v\u00e0 N, n\u1ebfu gh\u00e9p hai ch\u1ea5t b\u00e1n d\u1eabn theo m\u1ed9t ti\u1ebfp gi\u00e1p P – N ta \u0111\u01b0\u1ee3c m\u1ed9t Diode, ti\u1ebfp gi\u00e1p P -N c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m: T\u1ea1i b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac, c\u00e1c \u0111i\u1ec7n t\u1eed d\u01b0 th\u1eeba trong b\u00e1n d\u1eabn N khuy\u1ebfch t\u00e1n sang v\u00f9ng b\u00e1n d\u1eabn P \u0111\u1ec3 l\u1ea5p v\u00e0o c\u00e1c l\u1ed7 tr\u1ed1ng => t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp Ion trung ho\u00e0 v\u1ec1 \u0111i\u1ec7n => l\u1edbp Ion n\u00e0y t\u1ea1o th\u00e0nh mi\u1ec1n c\u00e1ch \u0111i\u1ec7n gi\u1eefa hai ch\u1ea5t b\u00e1n d\u1eabn.<\/span><\/p>\n

\u1ede h\u00ecnh tr\u00ean l\u00e0 m\u1ed1i ti\u1ebfp x\u00fac P – N v\u00e0 c\u0169ng ch\u00ednh l\u00e0 c\u1ea5u t\u1ea1o c\u1ee7a Diode b\u00e1n d\u1eabn.<\/span><\/p>\n

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2.2 Ph\u00e2n c\u1ef1c thu\u1eadn cho Diode<\/span><\/h3>\n

Khi ta c\u1ea5p \u0111i\u1ec7n \u00e1p d\u01b0\u01a1ng (+) v\u00e0o An\u00f4t ( v\u00f9ng b\u00e1n d\u1eabn P ) v\u00e0 \u0111i\u1ec7n \u00e1p \u00e2m (-) v\u00e0o Kat\u00f4t ( v\u00f9ng b\u00e1n d\u1eabn N ) , khi \u0111\u00f3 d\u01b0\u1edbi t\u00e1c d\u1ee5ng t\u01b0\u01a1ng t\u00e1c c\u1ee7a \u0111i\u1ec7n \u00e1p, mi\u1ec1n c\u00e1ch \u0111i\u1ec7n thu h\u1eb9p l\u1ea1i, khi \u0111i\u1ec7n \u00e1p ch\u00eanh l\u1ec7ch gi\u1eef hai c\u1ef1c \u0111\u1ea1t 0,6V ( v\u1edbi Diode lo\u1ea1i Si ) ho\u1eb7c 0,2V ( v\u1edbi Diode lo\u1ea1i Ge ) th\u00ec di\u1ec7n t\u00edch mi\u1ec1n c\u00e1ch \u0111i\u1ec7n gi\u1ea3m b\u1eb1ng kh\u00f4ng => Diode b\u1eaft \u0111\u1ea7u d\u1eabn \u0111i\u1ec7n. N\u1ebfu ti\u1ebfp t\u1ee5c t\u0103ng \u0111i\u1ec7n \u00e1p ngu\u1ed3n th\u00ec d\u00f2ng qua Diode t\u0103ng nhanh nh\u01b0ng ch\u00eanh\u00a0l\u1ec7ch \u0111i\u1ec7n \u00e1p gi\u1eefa hai c\u1ef1c c\u1ee7a Diode kh\u00f4ng t\u0103ng (v\u1eabn gi\u1eef \u1edf m\u1ee9c 0,6V).<\/span><\/p>\n

* K\u1ebft lu\u1eadn: Khi Diode (lo\u1ea1i Si) \u0111\u01b0\u1ee3c ph\u00e2n c\u1ef1c thu\u1eadn, n\u1ebfu \u0111i\u1ec7n \u00e1p ph\u00e2n c\u1ef1c thu\u1eadn < 0,6V th\u00ec ch\u01b0a c\u00f3 d\u00f2ng \u0111i qua Diode, N\u1ebfu \u00e1p ph\u00e2n c\u1ef1c thu\u1eadn \u0111\u1ea1t = 0,6V th\u00ec c\u00f3 d\u00f2ng \u0111i qua<\/span><\/p>\n

Diode sau \u0111\u00f3 d\u00f2ng \u0111i\u1ec7n qua Diode t\u0103ng nhanh nh\u01b0ng s\u1ee5t \u00e1p thu\u1eadn v\u1eabn gi\u1eef \u1edf gi\u00e1 tr\u1ecb 0,6V.<\/span><\/p>\n

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2.3 Ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c cho Diode<\/span><\/h3>\n

Khi ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c cho Diode t\u1ee9c l\u00e0 c\u1ea5p ngu\u1ed3n (+) v\u00e0o Kat\u00f4t (b\u00e1n d\u1eabn N), ngu\u1ed3n (-) v\u00e0o An\u00f4t (b\u00e1n d\u1eabn P), d\u01b0\u1edbi s\u1ef1 t\u01b0\u01a1ng t\u00e1c c\u1ee7a \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c, mi\u1ec1n c\u00e1ch \u0111i\u1ec7n c\u00e0ng r\u1ed9ng ra v\u00e0 ng\u0103n c\u1ea3n d\u00f2ng \u0111i\u1ec7n \u0111i qua m\u1ed1i ti\u1ebfp gi\u00e1p, Diode c\u00f3 th\u1ec3 chiu \u0111\u01b0\u1ee3c \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c r\u1ea5t l\u1edbn kho\u1ea3ng 1000V th\u00ec diode m\u1edbi b\u1ecb \u0111\u00e1nh th\u1ee7ng.<\/span><\/p>\n

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2.4 Ph\u01b0\u01a1ng ph\u00e1p \u0111o ki\u1ec3m tra Diode<\/span><\/h3>\n

\u0110\u1eb7t \u0111\u1ed3ng h\u1ed3 \u1edf thang x 1\u2126, \u0111\u1eb7t hai que \u0111o v\u00e0o hai \u0111\u1ea7u Diode, n\u1ebfu :<\/span><\/p>\n

\u0110o chi\u1ec1u thu\u1eadn que \u0111en v\u00e0o An\u00f4t, que \u0111\u1ecf v\u00e0o Kat\u00f4t => kim l\u00ean, \u0111\u1ea3o chi\u1ec1u \u0111o kim kh\u00f4ng l\u00ean l\u00e0 => Diode t\u1ed1t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/p>\n

N\u1ebfu \u0111o c\u1ea3 hai chi\u1ec1u kim l\u00ean = 0\u2126 => l\u00e0 Diode b\u1ecb ch\u1eadp.<\/span><\/p>\n

N\u1ebfu \u0111o thu\u1eadn chi\u1ec1u m\u00e0 kim kh\u00f4ng l\u00ean => l\u00e0 Diode b\u1ecb \u0111\u1ee9t.<\/span><\/p>\n

\u1ede ph\u00e9p \u0111o tr\u00ean th\u00ec Diode D1 t\u1ed1t, Diode D2 b\u1ecb ch\u1eadp v\u00e0 D3 b\u1ecb \u0111\u1ee9t\u00a0\u00a0\u00a0<\/span><\/p>\n

N\u1ebfu \u0111\u1ec3 thang 1K\u2126 m\u00e0 \u0111o ng\u01b0\u1ee3c v\u00e0o Diode kim v\u1eabn l\u00ean m\u1ed9t ch\u00fat l\u00e0 Diode b\u1ecb d\u00f2.<\/span><\/p>\n

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2.5 \u1ee8ng d\u1ee5ng c\u1ee7a Diode b\u00e1n d\u1eabn.<\/span><\/h3>\n

* Do t\u00ednh ch\u1ea5t d\u1eabn \u0111i\u1ec7n m\u1ed9t chi\u1ec1u n\u00ean Diode th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u1ea1ch ch\u1ec9nh l\u01b0u ngu\u1ed3n xoay chi\u1ec1u th\u00e0nh m\u1ed9t chi\u1ec1u, c\u00e1c m\u1ea1ch t\u00e1ch s\u00f3ng, m\u1ea1ch ghim \u00e1p ph\u00e2n c\u1ef1c cho transistor ho\u1ea1t \u0111\u1ed9ng, trong m\u1ea1ch ch\u1ec9nh l\u01b0u Diode c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p th\u00e0nh Diode c\u1ea7u c\u00f3 d\u1ea1ng.<\/span><\/p>\n

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3. C\u00e1c lo\u1ea1i Diode<\/strong><\/span><\/p>\n

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3.1 Diode Zener<\/span><\/h3>\n

* C\u1ea5u t\u1ea1o:<\/span><\/p>\n

Diode Zener c\u00f3 c\u1ea5u t\u1ea1o t\u01b0\u01a1ng t\u1ef1 Diode th\u01b0\u1eddng nh\u01b0ng c\u00f3 hai l\u1edbp b\u00e1n d\u1eabn P<\/span><\/p>\n

– N gh\u00e9p v\u1edbi nhau, Diode Zener \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong ch\u1ebf \u0111\u1ed9 ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c, khi ph\u00e2n c\u1ef1c thu\u1eadn Diode zener nh\u01b0 diode th\u01b0\u1eddng nh\u01b0ng khi ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c Diode zener s\u1ebd gim l\u1ea1i m\u1ed9t m\u1ee9c \u0111i\u1ec7n \u00e1p c\u1ed1 \u0111\u1ecbnh b\u1eb1ng gi\u00e1 tr\u1ecb ghi tr\u00ean diode.<\/span><\/p>\n

S\u01a1 \u0111\u1ed3 tr\u00ean minh ho\u1ea1 \u1ee9ng d\u1ee5ng c\u1ee7a Dz, ngu\u1ed3n U1 l\u00e0 ngu\u1ed3n c\u00f3 \u0111i\u1ec7n \u00e1p thay \u0111\u1ed5i, Dz l\u00e0 diode \u1ed5n \u00e1p, R1 l\u00e0 tr\u1edf h\u1ea1n d\u00f2ng.\u00a0<\/span><\/p>\n

Ta th\u1ea5y r\u1eb1ng khi ngu\u1ed3n U1 > Dz th\u00ec \u00e1p tr\u00ean Dz lu\u00f4n lu\u00f4n c\u1ed1 \u0111\u1ecbnh cho d\u00f9 ngu\u1ed3n U1 thay \u0111\u1ed5i.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/p>\n

Khi ngu\u1ed3n U1 thay \u0111\u1ed5i th\u00ec d\u00f2ng ng\u01b0\u1ee3c qua Dz thay \u0111\u1ed5i, d\u00f2ng ng\u01b0\u1ee3c qua Dz c\u00f3 gi\u00e1 tr\u1ecb gi\u1edbi h\u1ea1n kho\u1ea3ng 30mA.\u00a0\u00a0\u00a0\u00a0<\/span><\/p>\n

Th\u00f4ng th\u01b0\u1eddng ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng ngu\u1ed3n U1 > 1,5 => 2 l\u1ea7n Dz v\u00e0 l\u1eafp tr\u1edf h\u1ea1n d\u00f2ng R1 sao cho d\u00f2ng ng\u01b0\u1ee3c l\u1edbn nh\u1ea5t qua Dz < 30mA.<\/span><\/p>\n

N\u1ebfu U1 < Dz th\u00ec khi U1 thay \u0111\u1ed5i \u00e1p tr\u00ean Dz c\u0169ng thay \u0111\u1ed5i<\/em><\/span><\/p>\n

N\u1ebfu U1 > Dz th\u00ec khi U1 thay \u0111\u1ed5i => \u00e1p tr\u00ean Dz kh\u00f4ng \u0111\u1ed5i.<\/em><\/span><\/p>\n

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3.2 Diode Thu quang (Photo Diode)<\/span><\/h3>\n

Diode thu quang ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 ph\u00e2n c\u1ef1c ngh\u1ecbch, v\u1ecf diode c\u00f3 m\u1ed9t mi\u1ebfng thu\u1ef7 tinh \u0111\u1ec3 \u00e1nh s\u00e1ng chi\u1ebfu v\u00e0o m\u1ed1i P – N, d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c qua diode t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng chi\u1ebfu v\u00e0o diode.<\/span><\/p>\n

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3.3 Diode Ph\u00e1t quang (Light Emiting Diode: LED)<\/span><\/p>\n

Diode ph\u00e1t phang l\u00e0 Diode ph\u00e1t ra \u00e1nh s\u00e1ng khi \u0111\u01b0\u1ee3c ph\u00e2n c\u1ef1c thu\u1eadn, \u0111i\u1ec7n \u00e1p l\u00e0m vi\u1ec7c c\u1ee7a LED kho\u1ea3ng 1,7 => 2,2V d\u00f2ng qua Led kho\u1ea3ng t\u1eeb 5mA \u0111\u1ebfn 20mA<\/span><\/p>\n

Led \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m \u0111\u00e8n b\u00e1o ngu\u1ed3n, \u0111\u00e8n nh\u00e1y trang tr\u00ed, b\u00e1o tr\u1ea1ng th\u00e1i c\u00f3 \u0111i\u1ec7n…<\/span><\/p>\n

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3.4 Diode Varicap (Diode bi\u1ebfn dung)<\/span><\/h3>\n

Diode bi\u1ebfn dung l\u00e0 Diode c\u00f3 \u0111i\u1ec7n dung nh\u01b0 t\u1ee5 \u0111i\u1ec7n, v\u00e0 \u0111i\u1ec7n dung bi\u1ebfn \u0111\u1ed5i khi ta thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c \u0111\u1eb7t v\u00e0o Diode.<\/span><\/p>\n

\u1ede h\u00ecnh tr\u00ean khi ta ch\u1ec9nh tri\u1ebft \u00e1p VR, \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c \u0111\u1eb7t v\u00e0o Diode Varicap thay \u0111\u1ed5i, \u0111i\u1ec7n dung c\u1ee7a diode thay \u0111\u1ed5i => l\u00e0m thay \u0111\u1ed5i t\u1ea7n s\u1ed1 c\u00f4ng h\u01b0\u1edfng c\u1ee7a m\u1ea1ch.\u00a0\u00a0\u00a0<\/span><\/p>\n

Diode bi\u1ebfn dung \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 k\u00eanh Ti vi m\u1ea7u, trong c\u00e1c m\u1ea1ch \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng b\u1eb1ng \u0111i\u1ec7n \u00e1p.<\/span><\/p>\n

 <\/p>\n

3.5 Diode xung<\/span><\/h3>\n

Trong c\u00e1c b\u1ed9 ngu\u1ed3n xung th\u00ec \u1edf \u0111\u1ea7u ra c\u1ee7a bi\u1ebfn \u00e1p xung, ta ph\u1ea3i d\u00f9ng Diode xung \u0111\u1ec3 ch\u1ec9nh l\u01b0u. diode xung l\u00e0 diode l\u00e0m vi\u1ec7c \u1edf t\u1ea7n s\u1ed1 cao kho\u1ea3ng v\u00e0i ch\u1ee5c KHz , diode n\u1eafn \u0111i\u1ec7n th\u00f4ng th\u01b0\u1eddng kh\u00f4ng th\u1ec3 thay th\u1ebf v\u00e0o v\u1ecb tr\u00ed diode xung \u0111\u01b0\u1ee3c, nh\u01b0ng ng\u1ef1\u01a1c l\u1ea1i diode xung c\u00f3 th\u1ec3 thay th\u1ebf cho v\u1ecb tr\u00ed diode th\u01b0\u1eddng, diode xung c\u00f3 gi\u00e1 th\u00e0nh cao h\u01a1n diode th\u01b0\u1eddng nhi\u1ec1u l\u1ea7n.<\/span><\/p>\n

V\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m, h\u00ecnh d\u00e1ng th\u00ec Diode xung kh\u00f4ng c\u00f3 g\u00ec kh\u00e1c bi\u1ec7t v\u1edbi Diode th\u01b0\u1eddng, tuy nhi\u00ean Diode xung th\u01b0\u1eddng c\u00f3 v\u00f2ng d\u00e1nh d\u1ea5u \u0111\u1ee9t n\u00e9t ho\u1eb7c \u0111\u00e1nh d\u1ea5u b\u1eb1ng hai v\u00f2ng.<\/span><\/p>\n

 <\/p>\n

3.6 Diode t\u00e1ch s\u00f3ng<\/span><\/h3>\n

L\u00e0 lo\u1ea1i Diode nh\u1ecf v\u1edf b\u1eb1ng thu\u1ef7 tinh v\u00e0 c\u00f2n g\u1ecdi l\u00e0 diode ti\u1ebfp \u0111i\u1ec3m v\u00ec m\u1eb7t ti\u1ebfp x\u00fac gi\u1eefa hai ch\u1ea5t b\u00e1n d\u1eabn P – N t\u1ea1i m\u1ed9t \u0111i\u1ec3m \u0111\u1ec3 tr\u00e1nh \u0111i\u1ec7n dung k\u00fd sinh, diode t\u00e1ch s\u00f3ng th\u01b0\u1eddng d\u00f9ng trong c\u00e1c m\u1ea1ch cao t\u1ea7n d\u00f9ng \u0111\u1ec3 t\u00e1ch s\u00f3ng t\u00edn hi\u1ec7u.<\/span><\/p>\n

 <\/p>\n

3.7 Diode n\u1eafn \u0111i\u1ec7n<\/span><\/h3>\n

L\u00e0 Diode ti\u1ebfp m\u1eb7t d\u00f9ng \u0111\u1ec3 n\u1eafn \u0111i\u1ec7n trong c\u00e1c b\u1ed9 ch\u1ec9nh l\u01b0u ngu\u1ed3n AC 50Hz, Diode n\u00e0y th\u01b0\u1eddng c\u00f3 3 lo\u1ea1i l\u00e0 1A, 2A v\u00e0 5A.<\/span><\/p>\n

M\u1ecdi chi ti\u1ebft xin vui l\u00f2ng li\u00ean h\u1ec7:<\/i><\/p>\n

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\n","protected":false},"excerpt":{"rendered":"

Ch\u1ea5t b\u00e1n d\u1eabn l\u00e0 nguy\u00ean li\u1ec7u \u0111\u1ec3 s\u1ea3n xu\u1ea5t ra c\u00e1c lo\u1ea1i linh ki\u1ec7n b\u00e1n d\u1eabn nh\u01b0 Diode, Transistor, IC m\u00e0 ta \u0111\u00e3 th\u1ea5y trong c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ng\u00e0y nay. Ch\u1ea5t b\u00e1n d\u1eabn l\u00e0 nh\u1eefng ch\u1ea5t c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m trung gian gi\u1eefach\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n.<\/p>\n","protected":false},"author":95,"featured_media":12262,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96,94],"tags":[248],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/2160"}],"collection":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2160"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/2160\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/12262"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}