{"id":18344,"date":"2020-10-28T04:13:26","date_gmt":"2020-10-28T04:13:26","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=18344"},"modified":"2024-07-03T12:48:56","modified_gmt":"2024-07-03T05:48:56","slug":"diode-phat-quang-la-gi","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=18344","title":{"rendered":"Diode ph\u00e1t quang l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u v\u1ec1 diode ph\u00e1t quang"},"content":{"rendered":"

Diode ph\u00e1t quang<\/strong> l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i diode \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng nhi\u1ec1u nh\u1ea5t trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y. V\u1eady b\u1ea1n \u0111\u00e3 bi\u1ebft diode ph\u00e1t quang l\u00e0 g\u00ec c\u0169ng nh\u01b0 nh\u1eefng ki\u1ebfn th\u1ee9c li\u00ean quan \u0111\u1ebfn n\u00f3 ch\u01b0a? B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi cho b\u1ea1n.<\/span><\/p>\n

T\u00ecm hi\u1ec3u th\u00eam:\u00a0T\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c v\u1ec1 Diode – \u0110i\u1ec7n t\u1eed c\u01a1 b\u1ea3n<\/a><\/span><\/p><\/blockquote>\n

\"Diode
Diode ph\u00e1t quang l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u v\u1ec1 diode ph\u00e1t quang<\/span><\/figcaption><\/figure>\n

Diode ph\u00e1t quang l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n

Diode ph\u00e1t quang (Hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0110i\u1ed1t ph\u00e1t quang, LED hay \u0110i\u1ed1t ph\u00e1t s\u00e1ng) l\u00e0 lo\u1ea1i diode c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t ra \u00e1nh s\u00e1ng hay tia h\u1ed3ng ngo\u1ea1i, t\u1eed ngo\u1ea1i. N\u00f3 l\u00e0 m\u1ed9t ngu\u1ed3n ph\u00e1t s\u00e1ng khi c\u00f3 d\u00f2ng \u0111i\u1ec7n t\u00e1c \u0111\u1ed9ng l\u00ean n\u00f3.<\/span><\/p>\n

C\u1ea5u t\u1ea1o c\u1ee7a diode ph\u00e1t quang<\/strong><\/span><\/h2>\n

Gi\u1ed1ng nh\u01b0 c\u00e1c lo\u1ea1i diode th\u00f4ng th\u01b0\u1eddng, diode ph\u00e1t quang c\u00f3 c\u1ea5u t\u1ea1o bao g\u1ed3m m\u1ed9t l\u1edbp b\u00e1n d\u1eabn lo\u1ea1i P (Anot) v\u00e0 m\u1ed9t l\u1edbp b\u00e1n d\u1eabn lo\u1ea1i N (Canot) gh\u00e9p l\u1ea1i v\u1edbi nhau.<\/span><\/p>\n

Trong \u0111\u00f3, kh\u1ed1i b\u00e1n d\u1eabn lo\u1ea1i P ch\u1ee9a l\u1ed7 tr\u1ed1ng mang \u0111i\u1ec7n t\u00edch d\u01b0\u01a1ng n\u00ean c\u00f3 xu h\u01b0\u1edbng khu\u1ebfch t\u00e1n sang kh\u1ed1i b\u00e1n d\u1eabn lo\u1ea1i N. Ng\u01b0\u1ee3c l\u1ea1i, kh\u1ed1i b\u00e1n d\u1eabn lo\u1ea1i N ch\u1ee9a electron mang \u0111i\u1ec7n t\u00edch \u00e2m n\u00ean c\u00f3 xu h\u01b0\u1edbng khu\u1ebfch t\u00e1n sang kh\u1ed1i b\u00e1n d\u1eabn lo\u1ea1i P. K\u1ebft qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0 kh\u1ed1i P mang \u0111i\u1ec7n t\u00edch \u00e2m v\u00e0 kh\u1ed1i N mang \u0111i\u1ec7n t\u00edch d\u01b0\u01a1ng.\u00a0<\/span><\/p>\n

T\u1ea1i b\u1ec1 m\u1eb7t ti\u1ebfp gi\u00e1p gi\u1eefa hai kh\u1ed1i b\u00e1n d\u1eabn, c\u00e1c electron v\u00e0 l\u1ed7 tr\u1ed1ng c\u00f3 xu h\u01b0\u1edbng ti\u1ebfn l\u1ea1i g\u1ea7n nhau v\u00e0 k\u1ebft h\u1ee3p \u0111\u1ec3 t\u1ea1o th\u00e0nh nguy\u00ean t\u1eed trung h\u00f2a. Qu\u00e1 tr\u00ecnh n\u00e0y s\u1ebd l\u00e0m gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng d\u01b0\u1edbi d\u1ea1ng photon ph\u00e1t s\u00e1ng.<\/span><\/p>\n

Khi \u0111\u00f3, b\u01b0\u1edbc s\u00f3ng c\u1ee7a \u00e1nh s\u00e1ng ph\u00e1t ra s\u1ebd \u0111\u01b0\u1ee3c quy\u1ebft \u0111\u1ecbnh b\u1edfi c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c ph\u00e2n t\u1eed l\u00e0m ch\u1ea5t b\u00e1n d\u1eabn. Trong tr\u01b0\u1eddng h\u1ee3p b\u01b0\u1edbc s\u00f3ng n\u1eb1m trong v\u00f9ng h\u1ed3ng ngo\u1ea1i \u0111\u1ebfn v\u00f9ng t\u1eed ngo\u1ea1i th\u00ec ta c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c m\u00e0u s\u1eafc c\u1ee7a \u00e1nh s\u00e1ng \u0111\u00f3.<\/span><\/p>\n

\"C\u1ea5u
C\u1ea5u t\u1ea1o c\u1ee7a diode ph\u00e1t quang<\/figcaption><\/figure>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a diode ph\u00e1t quang<\/strong><\/span><\/h2>\n

Ho\u1ea1t \u0111\u1ed9ng c\u1ee7a diode ph\u00e1t quang d\u1ef1a tr\u00ean c\u00f4ng ngh\u1ec7 b\u00e1n d\u1eabn. C\u1ee5 th\u1ec3, electron s\u1ebd chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i c\u00f3 m\u1ee9c n\u0103ng l\u01b0\u1ee3ng cao xu\u1ed1ng tr\u1ea1ng th\u00e1i c\u00f3 m\u1ee9c n\u0103ng l\u01b0\u1ee3ng th\u1ea5p h\u01a1n. Trong qu\u00e1 tr\u00ecnh n\u00e0y, ch\u00ednh s\u1ef1 ch\u00eanh l\u1ec7ch n\u0103ng l\u01b0\u1ee3ng \u0111\u00e3 ph\u00e1t x\u1ea1 tr\u1edf th\u00e0nh nh\u1eefng d\u1ea1ng \u00e1nh s\u00e1ng kh\u00e1c nhau. \u0110\u1eb7c bi\u1ec7t m\u00e0u s\u1eafc c\u1ee7a diode ph\u00e1t quang ph\u1ee5 thu\u1ed9c v\u00e0o h\u1ee3p ch\u1ea5t b\u00e1n d\u1eabn c\u1ea5u th\u00e0nh l\u00ean diode v\u00e0 \u0111\u1eb7c tr\u01b0ng b\u1edfi b\u01b0\u1edbc s\u00f3ng c\u1ee7a \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c ph\u00e1t ra.<\/span><\/p>\n

\u01afu \u0111i\u1ec3m c\u1ee7a diode ph\u00e1t quang<\/strong><\/span><\/h2>\n

Diode ph\u00e1t quang s\u1edf h\u1eefu nh\u1eefng \u01b0u \u0111i\u1ec3m sau:<\/span><\/p>\n

– C\u00f3 hi\u1ec7u su\u1ea5t ph\u00e1t s\u00e1ng cao h\u01a1n lo\u1ea1i b\u00f3ng \u0111\u00e8n s\u1ee3i \u0111\u1ed1t.<\/span><\/p>\n

– M\u00e0u s\u1eafc t\u00f9y theo \u00fd mu\u1ed1n m\u00e0 kh\u00f4ng c\u1ea7n d\u00f9ng \u0111\u1ebfn b\u1ed9 l\u1ecdc m\u00e0u truy\u1ec1n th\u1ed1ng.<\/span><\/p>\n

– K\u00edch th\u01b0\u1edbc r\u1ea5t nh\u1ecf n\u00ean ta c\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t n\u00f3 tr\u00ean m\u1ea1ch in.<\/span><\/p>\n

– C\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9 s\u00e1ng t\u1ed1i m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng b\u1eb1ng c\u00e1ch t\u0103ng gi\u1ea3m d\u00f2ng \u0111i\u1ec7n t\u00e1c \u0111\u1ed9ng ho\u1eb7c \u0111i\u1ec1u ch\u1ebf \u0111\u1ed9 r\u1ed9ng xung,<\/span><\/p>\n

– Th\u1eddi gian b\u1eadt\/t\u1eaft nhanh.<\/span><\/p>\n

– \u0110\u1ed9 b\u1ec1n cao, r\u1ea5t kh\u00f3 b\u1ecb ph\u00e1 h\u1ee7y do va \u0111\u1eadp\u2026<\/span><\/p>\n

– Kh\u00f4ng g\u00e2y \u0111\u1ed9c h\u1ea1i v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/span><\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a diode ph\u00e1t quang<\/strong><\/span><\/h2>\n

Ng\u00e0y nay, diode ph\u00e1t quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong hai l\u0129nh v\u1ef1c ch\u00ednh:<\/span><\/p>\n

– Chi\u1ebfu s\u00e1ng d\u00e2n d\u1ee5ng<\/strong>: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 trang tr\u00ed n\u1ed9i th\u1ea5t (Hi\u1ec7n \u0111\u1ea1i v\u00e0 c\u1ed5 \u0111i\u1ec3n), ngo\u1ea1i th\u1ea5t (S\u00e2n v\u01b0\u1eddn, ti\u1ec3u c\u1ea3nh\u2026).<\/span><\/p>\n

– Chi\u1ebfu s\u00e1ng c\u00f4ng nghi\u1ec7p<\/strong>: V\u00ec chi ph\u00ed cao n\u00ean ch\u1ec9 c\u00f3 nh\u1eefng doanh nghi\u1ec7p c\u00f3 \u0111\u1ee7 n\u0103ng l\u1ef1c v\u1ec1 t\u00e0i ch\u00ednh m\u1edbi l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p chi\u1ebfu s\u00e1ng b\u1eb1ng c\u00f4ng ngh\u1ec7 LED cho c\u00e1c nh\u00e0 x\u01b0\u1edfng s\u1ea3n xu\u1ea5t c\u1ee7a doanh nghi\u1ec7p m\u00ecnh.<\/span><\/p>\n

\"H\u00ecnh
H\u00ecnh d\u00e1ng diode ph\u00e1t quang tr\u00ean th\u1ef1c t\u1ebf<\/span><\/figcaption><\/figure>\n

Tr\u00ean \u0111\u00e2y l\u00e0 chia s\u1ebb c\u1ee7a H\u1ecdc vi\u1ec7n iT.vn v\u1ec1 diode ph\u00e1t quang. 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 d\u01b0\u1edbi b\u00e0i vi\u1ebft n\u00e0y ho\u1eb7c inbox tr\u1ef1c ti\u1ebfp cho HOCVIENiT.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

C\u00e1c b\u00e0i vi\u1ebft li\u00ean quan:<\/span><\/p>\n

Diode ch\u1ec9nh l\u01b0u l\u00e0 g\u00ec? T\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c v\u1ec1 diode ch\u1ec9nh l\u01b0u<\/a><\/span><\/p>\n

Diode zener l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 diode zener<\/a><\/span><\/p>\n

T\u1ed5ng h\u1ee3p \u0111\u1ea7y \u0111\u1ee7 ki\u1ebfn th\u1ee9c v\u1ec1 diode thu quang<\/a><\/span><\/p>\n

Diode xung l\u00e0 g\u00ec? \u1ee8ng d\u1ee5ng c\u1ee7a diode xung<\/a><\/span><\/p>\n

Diode bi\u1ebfn dung l\u00e0 g\u00ec? Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a diode bi\u1ebfn dung<\/a><\/span><\/p>\n

Diode ti\u1ebfp \u0111i\u1ec3m l\u00e0 g\u00ec? C\u1ea5u t\u1ea1o v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a diode ti\u1ebfp \u0111i\u1ec3m<\/a><\/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
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\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":"

B\u1ea1n \u0111\u00e3 bi\u1ebft diode ph\u00e1t quang l\u00e0 g\u00ec c\u0169ng nh\u01b0 nh\u1eefng ki\u1ebfn th\u1ee9c li\u00ean quan \u0111\u1ebfn n\u00f3 ch\u01b0a? B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi cho b\u1ea1n.<\/p>\n","protected":false},"author":95,"featured_media":18345,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[734],"tags":[248],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/18344"}],"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=18344"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/18344\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/18345"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}