{"id":18891,"date":"2020-12-07T07:18:57","date_gmt":"2020-12-07T07:18:57","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=18891"},"modified":"2024-07-03T12:26:56","modified_gmt":"2024-07-03T05:26:56","slug":"thyristor-la-gi-tong-hop-kien-thuc-ve-thyristor","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=18891","title":{"rendered":"Thyristor l\u00e0 g\u00ec? T\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c v\u1ec1 Thyristor"},"content":{"rendered":"

Thyristor<\/strong> l\u00e0 m\u1ed9t trong nh\u1eefng linh ki\u1ec7n quen thu\u1ed9c trong c\u00e1c bo m\u1ea1ch \u0111i\u1ec7n t\u1eed hi\u1ec7n nay. Ch\u00ednh v\u00ec v\u1eady, n\u1ebfu mu\u1ed1n h\u1ecdc s\u1eeda ch\u1eefa c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed th\u00ec c\u00e1c b\u1ea1n c\u1ea7n bi\u1ebft Thyristor l\u00e0 g\u00ec? C\u1ea5u t\u1ea1o v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 ra sao? H\u00e3y c\u00f9ng H\u1ecdc vi\u1ec7n iT.vn t\u00ecm hi\u1ec3u chi ti\u1ebft trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9.<\/span><\/p>\n

\"Thyristor
Thyristor l\u00e0 g\u00ec? T\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c v\u1ec1 Thyristor<\/span><\/figcaption><\/figure>\n

Thyristor l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n

Thyristor (Hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Silicon Controlled Rectifier – Ch\u1ec9nh l\u01b0u silic c\u00f3 \u0111i\u1ec1u khi\u1ec3n) l\u00e0 m\u1ed9t ph\u1ea7n t\u1eed b\u00e1n d\u1eabn \u0111\u01b0\u1ee3c c\u1ea5u th\u00e0nh t\u1eeb b\u1ed1n l\u1edbp b\u00e1n d\u1eabn v\u00e0 t\u1ea1o ra ba l\u1edbp ti\u1ebfp gi\u00e1p.<\/span><\/p>\n

X\u00e9t v\u1ec1 m\u1eb7t b\u1ea3n ch\u1ea5t, Thyristor \u0111\u01b0\u1ee3c gh\u00e9p t\u1eeb hai transistor c\u00f3 hai chi\u1ec1u \u0111\u1ed1i ngh\u1ecbch v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c (M\u1ed9t BJT lo\u1ea1i NPN<\/strong><\/a> v\u00e0 m\u1ed9t BJT lo\u1ea1i PNP<\/strong><\/a>). Khi \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n, linh ki\u1ec7n n\u00e0y s\u1ebd ho\u1ea1t \u0111\u1ed9ng v\u00e0 khi kh\u00f4ng c\u00f3 \u0111i\u1ec7n th\u00ec n\u00f3 s\u1ebd t\u1ef1 \u0111\u1ed9ng ng\u1eaft v\u00e0 tr\u1edf v\u1ec1 tr\u1ea1ng th\u00e1i ng\u01b0ng d\u1eabn.<\/span><\/p>\n

T\u00ecm hi\u1ec3u th\u00eam:\u00a0B\u1ea3ng tra c\u00e1c th\u00f4ng s\u1ed1 Thyristor theo tham s\u1ed1 c\u1ee7a Nga v\u00e0 T\u00e2y \u00c2u<\/a><\/span><\/p><\/blockquote>\n

K\u00fd hi\u1ec7u c\u1ee7a Thyristor<\/strong><\/span><\/h2>\n

N\u1ebfu nh\u00ecn s\u01a1 qua th\u00ec ta s\u1ebd th\u1ea5y Thyristor c\u00f3 k\u00fd hi\u1ec7u kh\u00e1 gi\u1ed1ng v\u1edbi m\u1ed9t con diode. Nh\u01b0ng ta c\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t b\u1eb1ng c\u00e1ch: Thyristor c\u00f3 th\u00eam \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n \u0111i qua \u0111\u00f3 l\u00e0 ta ph\u1ea3i k\u00edch th\u00edch m\u1ed9t d\u00f2ng \u0111i\u1ec1u khi\u1ec3n \u0111i v\u00e0o ch\u00e2n G.<\/span><\/p>\n

\"K\u00fd
K\u00fd hi\u1ec7u c\u1ee7a Thyristor<\/span><\/figcaption><\/figure>\n

C\u1ea5u t\u1ea1o c\u1ee7a Thyristor<\/strong><\/span><\/h2>\n

Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean, Thyristor c\u1ea5u t\u1ea1o t\u1eeb b\u1ed1n l\u1edbp b\u00e1n d\u1eabn. Trong \u0111\u00f3, b\u1ed1n l\u1edbp b\u00e1n d\u1eabn n\u00e0y \u0111\u01b0\u1ee3c xen k\u1ebd l\u1eabn nhau v\u00e0 n\u1ed1i ra ba ch\u00e2n:<\/span><\/p>\n

– A (Anode)<\/strong>: C\u1ef1c d\u01b0\u01a1ng.<\/span><\/p>\n

– K (Cathode)<\/strong>: C\u1ef1c \u00e2m.<\/span><\/p>\n

– G (Gate)<\/strong>: C\u1ef1c c\u1ed5ng (C\u1ef1c khi\u1ec3n).<\/span><\/p>\n

\"C\u1ea5u
C\u1ea5u t\u1ea1o c\u1ee7a Thyristor<\/span><\/figcaption><\/figure>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Thyristor<\/strong><\/span><\/h2>\n
\"Nguy\u00ean
Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Thyristor<\/span><\/figcaption><\/figure>\n

Tr\u01b0\u1eddng h\u1ee3p 1: C\u1ef1c G \u0111\u1ec3 h\u1edf hay VG<\/sub> = 0V<\/span><\/h3>\n

\u1ede tr\u01b0\u1eddng h\u1ee3p VG<\/sub> = 0V th\u00ec c\u00f3 ngh\u0129a l\u00e0 Transistor T1<\/sub> ng\u01b0ng d\u1eabn v\u00ec \u1edf c\u1ef1c B c\u1ee7a Transistor kh\u00f4ng ph\u00e2n c\u1ef1c. \u0110i\u1ec1u n\u00e0y c\u0169ng c\u00f3 ngh\u0129a l\u00e0 ta c\u00f3 IB1<\/sub> = 0, IC1<\/sub> = 0 v\u00e0 Transistor T2<\/sub> c\u0169ng ng\u01b0ng d\u1eabn. K\u1ebft qu\u1ea3 l\u00e0 Thyristor kh\u00f4ng d\u1eabn \u0111i\u1ec7n v\u00e0 d\u00f2ng \u0111i\u1ec7n \u0111i qua n\u00f3 IA<\/sub> = 0, VAK<\/sub> \u2248 VCC<\/sub>.<\/span><\/p>\n

Th\u1ebf nh\u01b0ng khi ta t\u0103ng \u0111i\u1ec7n \u00e1p VCC<\/sub> l\u00ean m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh (M\u1ee9c \u0111i\u1ec7n \u00e1p \u0111\u1ee7 l\u1edbn \u0111\u1ec3 \u0111i\u1ec7n \u00e1p VAK<\/sub> t\u0103ng theo \u0111\u1ebfn \u0111i\u1ec7n th\u1ebf ng\u1eadp VBO<\/sub> (Break over)) th\u00ec diode v\u00e0 d\u00f2ng \u0111i\u1ec7n IA<\/sub> t\u0103ng nhanh nh\u01b0ng \u0111i\u1ec7n \u00e1p VAK<\/sub> gi\u1ea3m xu\u1ed1ng.<\/span><\/p>\n

B\u00e2y gi\u1edd, tr\u1ea1ng th\u00e1i c\u1ee7a Thyristor l\u00e0 d\u1eabn \u0111i\u1ec7n. Ta g\u1ecdi d\u00f2ng \u0111i\u1ec7n t\u01b0\u01a1ng \u1ee9ng v\u1edbi khi \u0111i\u1ec7n \u00e1p VAK<\/sub> gi\u1ea3m nhanh l\u00e0 d\u00f2ng \u0111i\u1ec7n duy tr\u00ec IH<\/sub> (Holding). L\u00fac n\u00e0y, \u0111\u1eb7c t\u00ednh c\u1ee7a Thyristor y h\u1ec7t m\u1ed9t diode n\u1eafn \u0111i\u1ec7n.<\/span><\/p>\n

 <\/p>\n

Tr\u01b0\u1eddng h\u1ee3p 2: \u0110\u00f3ng kh\u00f3a K<\/span><\/h3>\n

\u0110\u1ed1i v\u1edbi tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3ng kh\u00f3a K: VG<\/sub> = VDC<\/sub> \u2013 IG<\/sub>RG\u00a0<\/sub>th\u00ec Thyristor s\u1ebd r\u1ea5t d\u1ec5 b\u1ecb chuy\u1ec3n sang tr\u1ea1ng th\u00e1i d\u1eabn \u0111i\u1ec7n. Trong \u0111\u00f3, Transistor T1<\/sub> ph\u00e2n c\u1ef1c \u1edf c\u1ef1c B1<\/sub> n\u00ean T1<\/sub> d\u1eabn \u0111i\u1ec7n cho ra IC1<\/sub> . Suy ra I2<\/sub> c\u0169ng d\u1eabn \u0111i\u1ec7n cho ra IC2<\/sub> cung c\u1ea5p \u0111i\u1ec7n ng\u01b0\u1ee3c l\u1ea1i cho T1<\/sub>. Ta c\u00f3: IC1<\/sub> = IB2<\/sub>; IC2<\/sub> = IB1<\/sub>.<\/span><\/p>\n

C\u0169ng nh\u1edd nguy\u00ean l\u00fd n\u00e0y m\u00e0 Thyristor c\u00f3 th\u1ec3 t\u1ef1 duy tr\u00ec \u1edf tr\u1ea1ng th\u00e1i d\u1eabn m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ebfn d\u00f2ng IG<\/sub> ph\u1ea3i cung c\u1ea5p li\u00ean t\u1ee5c.<\/span><\/p>\n

L\u1eadp lu\u1eadn t\u1eeb nguy\u00ean l\u00fd tr\u00ean, ta c\u00f3 d\u00f2ng \u0111i\u1ec7n qua hai Transistor s\u1ebd \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i l\u1edbn d\u1ea7n v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u1edf tr\u1ea1ng th\u00e1i b\u00e3o h\u00f2a. Khi \u0111\u00f3, \u0111i\u1ec7n \u00e1p VAK gi\u1ea3m r\u1ea5t nh\u1ecf (ch\u1ec9 \u2248 0,7V) v\u00e0 d\u00f2ng \u0111i\u1ec7n qua Thyristor \u0111\u01b0\u1ee3c t\u00ednh theo c\u00f4ng th\u1ee9c:\u00a0<\/span><\/p>\n

IA<\/sub> = (VCC<\/sub> – VAK<\/sub>)\/RA<\/sub> \u2248 VCC<\/sub>\/RA<\/sub><\/span><\/strong><\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf, ng\u01b0\u1eddi ta nh\u1eadn th\u1ea5y r\u1eb1ng khi d\u00f2ng \u0111i\u1ec7n cung c\u1ea5p cho c\u1ef1c G c\u00e0ng l\u1edbn th\u00ec Thyristor c\u00e0ng d\u1eabn \u0111i\u1ec7n t\u1ed1t.<\/span><\/p>\n

 <\/p>\n

Tr\u01b0\u1eddng h\u1ee3p 3: Ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c Thyristor<\/span><\/h3>\n

Ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c Thyristor c\u00f3 ngh\u0129a l\u00e0 n\u1ed1i K v\u00e0o c\u1ef1c d\u01b0\u01a1ng, A v\u00e0o c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n VCC<\/sub>. Ta c\u00f3 th\u1ec3 hi\u1ec3u tr\u01b0\u1eddng h\u1ee3p n\u00e0y t\u01b0\u01a1ng t\u1ef1 nh\u01b0 diode ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c. \u1ede tr\u01b0\u1eddng h\u1ee3p n\u00e0y, Thyristor kh\u00f4ng d\u1eabn \u0111i\u1ec7n m\u00e0 ch\u1ec9 cho d\u00f2ng r\u1ec9 r\u1ea5t nh\u1ecf \u0111i qua m\u00e0 th\u00f4i. N\u1ebfu \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c t\u0103ng l\u00ean (\u0110\u1ea1t m\u1ee9c \u0111i\u1ec7n \u00e1p \u0111\u00e1nh th\u1ee7ng Thyristor VBR<\/sub>) th\u00ec d\u00f2ng \u0111i\u1ec7n s\u1ebd \u0111i theo chi\u1ec1u ng\u01b0\u1ee3c. Th\u00f4ng th\u01b0\u1eddng tr\u1ecb s\u1ed1 VBR<\/sub> v\u00e0 VBO<\/sub>\u00a0 b\u1eb1ng nhau v\u00e0 ng\u01b0\u1ee3c d\u1ea5u.<\/span><\/p>\n

 <\/p>\n

\u0110\u01b0\u1eddng \u0111\u1eb7c tuy\u1ebfn c\u1ee7a Thyristor<\/strong><\/span><\/h2>\n
\"\u0110\u01b0\u1eddng
\u0110\u01b0\u1eddng \u0111\u1eb7c tuy\u1ebfn c\u1ee7a Thyristor<\/span><\/figcaption><\/figure>\n

M\u1ed9t s\u1ed1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a Thyristor<\/strong><\/span><\/h2>\n

M\u1ed9t s\u1ed1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a Thyristor m\u00e0 b\u1ea1n c\u1ea7n bi\u1ebft nh\u01b0 sau:<\/span><\/p>\n

 <\/p>\n

Gi\u00e1 tr\u1ecb d\u00f2ng trung b\u00ecnh cho ph\u00e9p ch\u1ea1y qua thyristor (Iv, tb)<\/span><\/h3>\n

Gi\u00e1 tr\u1ecb d\u00f2ng trung b\u00ecnh cho ph\u00e9p ch\u1ea1y qua thyristor l\u00e0 gi\u00e1 tr\u1ecb trung b\u00ecnh \u0111\u01b0\u1ee3c ph\u00e9p ch\u1ea1y qua Thyristor trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 c\u1ee7a c\u1ea5u tr\u00fac tinh th\u1ec3 b\u00e1n d\u1eabn kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 m\u1ed9t gi\u00e1 tr\u1ecb nhi\u1ec7t \u0111\u1ed9 cho ph\u00e9p. Tr\u00ean th\u1ef1c t\u1ebf, gi\u00e1 tr\u1ecb d\u00f2ng \u0111i\u1ec7n cho ph\u00e9p ch\u1ea1y qua thyristor kh\u00f4ng c\u1ed1 \u0111\u1ecbnh m\u00e0 n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o \u0111i\u1ec1u ki\u1ec7n l\u00e0m m\u00e1t v\u00e0 m\u00f4i tr\u01b0\u1eddng. Nh\u00ecn chung, ta c\u00f3 th\u1ec3 l\u00e0m m\u00e1t d\u00f2ng \u0111i\u1ec7n b\u1eb1ng m\u1ed9t trong ba c\u00e1ch sau:<\/span><\/p>\n

– L\u00e0m m\u00e1t t\u1ef1 nhi\u00ean:<\/strong> D\u00f2ng s\u1eed d\u1ee5ng cho ph\u00e9p b\u1eb1ng m\u1ed9t ph\u1ea7n ba d\u00f2ng cho ph\u00e9p Iv, tb.<\/span><\/p>\n

– L\u00e0m m\u00e1t c\u01b0\u1ee1ng b\u1ee9c b\u1eb1ng n\u01b0\u1edbc:<\/strong> D\u00f2ng s\u1eed d\u1ee5ng cho ph\u00e9p b\u1eb1ng 100% d\u00f2ng cho ph\u00e9p Iv, tb.<\/span><\/p>\n

– L\u00e0m m\u00e1t c\u01b0\u1ee1ng b\u1ee9c b\u1eb1ng qu\u1ea1t gi\u00f3:<\/strong> D\u00f2ng s\u1eed d\u1ee5ng cho ph\u00e9p b\u1eb1ng hai ph\u1ea7n ba d\u00f2ng cho ph\u00e9p Iv, tb.<\/span><\/p>\n

 <\/p>\n

\u0110i\u1ec7n \u00e1p ng\u01b0\u1ee3c cho ph\u00e9p l\u1edbn nh\u1ea5t (Ung, max)<\/span><\/h3>\n

\u0110\u00e2y l\u00e0 m\u1ee9c \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c l\u1edbn nh\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean thyristor n\u1ebfu kh\u00f4ng mu\u1ed1n thyristor b\u1ecb h\u1ecfng. Ch\u00ednh v\u00ec v\u1eady, ch\u00fang ta ph\u1ea3i lu\u00f4n \u0111\u1ea3m b\u1ea3o r\u1eb1ng \u0111i\u1ec7n \u00e1p gi\u1eefa Anode v\u00e0 Cathode lu\u00f4n nh\u1ecf h\u01a1n ho\u1eb7c b\u1eb1ng m\u1ee9c \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c cho ph\u00e9p l\u1edbn nh\u1ea5t. Ngo\u00e0i ra, ch\u00fang ta c\u0169ng c\u1ea7n \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 d\u1ef1 tr\u1eef nh\u1ea5t \u0111\u1ecbnh v\u1ec1 \u0111i\u1ec7n \u00e1p (Ung, max ph\u1ea3i \u00edt nh\u1ea5t l\u00e0 b\u1eb1ng 1,2 \u2013 1,5 l\u1ea7n bi\u00ean \u0111\u1ed9 l\u1edbn nh\u1ea5t c\u1ee7a \u0111i\u1ec7n \u00e1p tr\u00ean s\u01a1 \u0111\u1ed3).<\/span><\/p>\n

 <\/p>\n

Th\u1eddi gian ph\u1ee5c h\u1ed3i t\u00ednh ch\u1ea5t kh\u00f3a c\u1ee7a thyristor \u03c4 (\u03bcs)<\/span><\/h3>\n

Th\u1eddi gian ph\u1ee5c h\u1ed3i t\u00ednh ch\u1ea5t kh\u00f3a c\u1ee7a thyristor l\u00e0 th\u1eddi gian t\u1ed1i thi\u1ec3u ph\u1ea3i \u0111\u1eb7t \u0111i\u1ec7n \u00e1p \u00e2m l\u00ean gi\u1eefa anode v\u00e0 cathode c\u1ee7a thyristor sau khi d\u00f2ng anode-cathode \u0111\u00e3 v\u1ec1 b\u1eb1ng kh\u00f4ng tr\u01b0\u1edbc khi l\u1ea1i c\u00f3 th\u1ec3 c\u00f3 \u0111i\u1ec7n \u00e1p Uak d\u01b0\u01a1ng m\u00e0 thyristor v\u1eabn kh\u00f3a. Th\u00f4ng th\u01b0\u1eddng, ta ph\u1ea3i \u0111\u1ea3m b\u1ea3o th\u1eddi gian d\u00e0nh cho qu\u00e1 tr\u00ecnh kh\u00f3a ph\u1ea3i b\u1eb1ng 1,5-2 l\u1ea7n \u03c4.<\/span><\/p>\n

 <\/p>\n

T\u1ed1c \u0111\u1ed9 t\u0103ng \u0111i\u1ec7n \u00e1p cho ph\u00e9p dU\/dt (V\/\u03bcs)<\/span><\/h3>\n

B\u1edfi v\u00ec thyristor l\u00e0 m\u1ed9t linh ki\u1ec7n b\u00e1n d\u1eabn c\u00f3 \u0111i\u1ec1u khi\u1ec3n n\u00ean cho d\u00f9 khi thyristor \u0111\u01b0\u1ee3c ph\u00e2n c\u1ef1c thu\u1eadn m\u00e0 kh\u00f4ng c\u00f3 t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n th\u00ec n\u00f3 c\u0169ng kh\u00f4ng cho ph\u00e9p d\u00f2ng ch\u1ea1y qua. T\u1ed1c \u0111\u1ed9 t\u0103ng \u0111i\u1ec7n \u00e1p l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 \u0111\u1ec3 ph\u00e2n bi\u1ec7t gi\u1eefa thyristor t\u1ea7n s\u1ed1 th\u1ea5p v\u1edbi thyristor t\u1ea7n s\u1ed1 cao. \u1ede thyristor t\u1ea7n s\u1ed1 th\u1ea5p, dU\/dt v\u00e0o kho\u1ea3ng 50 \u0111\u1ebfn 200 V\/\u03bcs c\u00f2n v\u1edbi c\u00e1c thyristor t\u1ea7n s\u1ed1 cao dU\/dt c\u00f3 th\u1ec3 l\u00ean t\u1edbi 500-2000 V\/\u03bcs.<\/span><\/p>\n

 <\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a thyristor tr\u00ean th\u1ef1c t\u1ebf<\/strong><\/span><\/h2>\n

Tr\u00ean th\u1ef1c t\u1ebf, thyristor \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng nh\u01b0 sau:<\/span><\/p>\n

– \u0110i\u1ec1u ch\u1ec9nh \u00e1nh s\u00e1ng, \u0111i\u1ec1u khi\u1ec3n c\u00f4ng su\u1ea5t \u0111i\u1ec7n v\u00e0 \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n.\u00a0<\/span><\/p>\n

– \u0110\u1ea3o ng\u01b0\u1ee3c d\u00f2ng \u0111i\u1ec7n v\u00e0 s\u1eed d\u1ee5ng t\u00edn hi\u1ec7u c\u1ed5ng \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 b\u1eadt v\u00e0 t\u1eaft \u0111\u1ec3 b\u1eadt\/t\u1eaft ho\u00e0n to\u00e0n thi\u1ebft b\u1ecb (L\u00e0m c\u00f4ng t\u1eafc).\u00a0<\/span><\/p>\n

– S\u1eed d\u1ee5ng nhi\u1ec1u trong nh\u1eefng \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n l\u1edbn.<\/span><\/p>\n

– \u0110i\u1ec1u khi\u1ec3n d\u00f2ng xoay chi\u1ec1u AC.<\/span><\/p>\n

 <\/p>\n

\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a thyristor<\/strong><\/span><\/h2>\n

 <\/p>\n

\u01afu \u0111i\u1ec3m<\/span><\/h3>\n

– C\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd \u0111i\u1ec7n \u00e1p, d\u00f2ng \u0111i\u1ec7n v\u00e0 c\u00f4ng su\u1ea5t l\u1edbn.<\/span><\/p>\n

– C\u1ea7u ch\u00ec c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c thyristor.<\/span><\/p>\n

– D\u1ec5 d\u00e0ng khi b\u1eadt.<\/span><\/p>\n

– C\u1ea5u t\u1ea1o c\u1ee7a m\u1ea1ch k\u00edch ho\u1ea1t b\u1ed9 ch\u1ec9nh l\u01b0u s\u1eed d\u1ee5ng thyristor r\u1ea5t \u0111\u01a1n gi\u1ea3n.<\/span><\/p>\n

– Ki\u1ec3m so\u00e1t r\u1ea5t d\u1ec5 d\u00e0ng.<\/span><\/p>\n

– Kh\u00f4ng m\u1ea5t nhi\u1ec1u chi ph\u00ed.<\/span><\/p>\n

– C\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n ngu\u1ed3n xoay chi\u1ec1u.<\/span><\/p>\n

 <\/p>\n

Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/span><\/h3>\n

– Thyristor ch\u1ec9 \u0111i\u1ec1u khi\u1ec3n ngu\u1ed3n m\u1ed9t chi\u1ec1u v\u00ec n\u00f3 ch\u1ec9 c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n c\u00f4ng su\u1ea5t b\u1eb1ng ngu\u1ed3n m\u1ed9t chi\u1ec1u trong n\u1eeda chu k\u1ef3 d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n xoay chi\u1ec1u.<\/span><\/p>\n

– M\u1ed7i chu k\u1ef3, thyristor \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c b\u1eadt l\u00ean trong m\u1ea1ch xoay chi\u1ec1u.<\/span><\/p>\n

– Kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng \u1edf t\u1ea7n s\u1ed1 cao.<\/span><\/p>\n

– D\u00f2ng \u0111i\u1ec7n \u1edf c\u1ed5ng (gate) kh\u00f4ng th\u1ec3 \u00e2m.<\/span><\/p>\n

Tr\u00ean \u0111\u00e2y l\u00e0 chia s\u1ebb c\u1ee7a H\u1ecdc vi\u1ec7n iT.vn v\u1ec1 nh\u1eefng ki\u1ebfn th\u1ee9c li\u00ean quan \u0111\u1ebfn Thyristor. Hy v\u1ecdng nh\u1eefng ki\u1ebfn th\u1ee9c n\u00e0y c\u00f3 th\u1ec3 gi\u00fap \u00edch cho b\u1ea1n trong qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp v\u00e0 l\u00e0m vi\u1ec7c. N\u1ebfu c\u00f3 b\u1ea5t c\u1ee9 th\u1eafc m\u1eafc n\u00e0o th\u00ec h\u00e3y \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn ngay b\u00ean d\u01b0\u1edbi b\u00e0i vi\u1ebft n\u00e0y ho\u1eb7c inbox tr\u1ef1c ti\u1ebfp cho H\u1ecdc vi\u1ec7n iT.vn \u0111\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i \u0111\u00e1p t\u1ed1t nh\u1ea5t. Ch\u00fac b\u1ea1n th\u00e0nh c\u00f4ng!<\/span><\/p>\n

M\u1ecdi chi ti\u1ebft xin vui l\u00f2ng li\u00ean h\u1ec7:
\n<\/i>C\u00d4NG TY C\u1ed4 PH\u1ea6N H\u1eccC VI\u1ec6N IT
\n<\/strong>MST: 0108733789
\n<\/strong>T\u1ed5ng \u0111\u00e0i h\u1ed7 tr\u1ee3: 024 3566 8686 \u2013 Hotline: 0981 223 001
\n<\/strong>Facebook:<\/strong>\u00a0www.fb.com\/hocvienit<\/a>
\n\u0110\u0103ng k\u00fd k\u00eanh Youtube \u0111\u1ec3 theo d\u00f5i c\u00e1c b\u00e0i h\u1ecdc c\u1ee7a Hu\u1ea5n luy\u1ec7n vi\u00ean t\u1ed1t nh\u1ea5t:<\/strong>\u00a0http:\/\/bit.ly\/Youtube_HOCVIENiT<\/a>
\nH\u1ec7 th\u1ed1ng c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o:\u00a0<\/b>https:\/\/hocvienit.vn\/lien-he\/<\/a>
\nH\u1ecdc vi\u1ec7n IT.vn \u2013 Truy\u1ec1n ngh\u1ec1 th\u1ef1c t\u1ebf c\u00f9ng b\u1ea1n \u0111\u1ebfn th\u00e0nh c\u00f4ng!\u00a0<\/i><\/strong><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Thyristor l\u00e0 m\u1ed9t trong nh\u1eefng linh ki\u1ec7n quen thu\u1ed9c trong c\u00e1c bo m\u1ea1ch \u0111i\u1ec7n t\u1eed hi\u1ec7n nay. Ch\u00ednh v\u00ec v\u1eady, n\u1ebfu mu\u1ed1n h\u1ecdc s\u1eeda ch\u1eefa c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed th\u00ec c\u00e1c b\u1ea1n c\u1ea7n bi\u1ebft Thyristor l\u00e0 g\u00ec? C\u1ea5u t\u1ea1o v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 ra sao? H\u00e3y c\u00f9ng H\u1ecdc vi\u1ec7n iT.vn t\u00ecm hi\u1ec3u chi ti\u1ebft trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9.<\/p>\n","protected":false},"author":95,"featured_media":18892,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[734],"tags":[661,667],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/18891"}],"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=18891"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/18891\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/18892"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18891"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18891"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18891"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}