{"id":20355,"date":"2021-04-26T09:07:21","date_gmt":"2021-04-26T09:07:21","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=20355"},"modified":"2025-02-04T15:15:27","modified_gmt":"2025-02-04T08:15:27","slug":"lam-the-nao-de-xac-dinh-dien-ap-cua-diode-zener","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=20355","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p c\u1ee7a diode zener?"},"content":{"rendered":"

Diode Zener l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i diode ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay. Ch\u00ednh v\u00ec v\u1eady ng\u00e0y h\u00f4m nay, H\u1ecdc vi\u1ec7n iT.vn s\u1ebd chia s\u1ebb t\u1edbi c\u00e1c b\u1ea1n c\u00e1ch \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 th\u1ef1c hi\u1ec7n nh\u1ea5t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p c\u1ee7a diode zener<\/strong> nh\u00e9.<\/span><\/p>\n

\"L\u00e0m
L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p c\u1ee7a diode zener?<\/span><\/figcaption><\/figure>\n

\u0110\u1ea7u ti\u00ean, \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111i\u1ec7n \u00e1p<\/span>\u00a0c\u1ee7a diode zener th\u00ec b\u1ea1n c\u1ea7n ph\u1ea3i hi\u1ec3u nguy\u00ean l\u00fd c\u01a1 b\u1ea3n c\u1ee7a diode<\/a><\/strong> \u1ed5n \u00e1p zener.<\/span><\/span><\/p>\n

Nguy\u00ean l\u00fd c\u01a1 b\u1ea3n c\u1ee7a diode \u1ed5n \u00e1p zener<\/strong><\/span><\/h2>\n

Khi m\u1ed9t con diode zener<\/strong><\/a> \u0111\u01b0\u1ee3c c\u1ea5p m\u1ed9t \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c v\u1edbi \u0111i\u1ec7n \u00e1p d\u01b0\u01a1ng c\u1ea5p v\u00e0o ch\u00e2n catot th\u00f4ng qua m\u1ed9t con \u0111i\u1ec7n tr\u1edf h\u1ea1n d\u00f2ng v\u00e0 \u0111i\u1ec7n \u00e1p \u00e2m \u0111\u01b0\u1ee3c c\u1ea5p v\u00e0o ch\u00e2n anot c\u1ee7a n\u00f3 th\u00ec s\u1ebd c\u00f3 m\u1ed9t d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c ch\u1ea1y qua con diode \u1ed5n \u00e1p n\u00e0y. N\u1ebfu \u0111i\u1ec7n \u00e1p Vin l\u1edbn h\u01a1n \u0111i\u1ec7n \u00e1p \u1ed5n \u00e1p th\u00ec c\u00f3 m\u1ed9t d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c ch\u1ea1y qua. \u0110\u1ed3ng th\u1eddi con diode n\u00e0y s\u1ebd ghim ra m\u1ed9t \u0111i\u1ec7n \u00e1p \u1ed5n \u0111\u1ecbnh k\u1ec3 c\u1ea3 khi \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o thay \u0111\u1ed5i.\u00a0<\/span><\/p>\n

\"Diode
Diode \u1ed5n \u00e1p zener<\/figcaption><\/figure>\n

C\u00e1ch x\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p c\u1ee7a diode zener<\/strong><\/span><\/h2>\n

D\u1ef1a v\u00e0o nguy\u00ean t\u1eafc \u1ed5n \u00e1p tr\u00ean, ch\u00fang ta c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111i\u1ec7n \u00e1p c\u1ee7a diode zener khi m\u00e0 ch\u00fang ta s\u1eed d\u1ee5ng m\u1ed9t \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n \u00e1p n\u00e0y.<\/span><\/p>\n

\"C\u00e1ch
C\u00e1ch x\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p c\u1ee7a diode zener<\/span><\/figcaption><\/figure>\n

V\u1eady nguy\u00ean t\u1eafc \u1edf \u0111\u00e2y l\u00e0 c\u1ea5p m\u1ed9t \u0111i\u1ec7n \u00e1p c\u1ea5p tr\u01b0\u1edbc c\u00f3 gi\u00e1 tr\u1ecb ph\u1ed5 th\u00f4ng kho\u1ea3ng 20-30V m\u1eafc v\u1edbi m\u1ed9t con \u0111i\u1ec7n tr\u1edf h\u1ea1n d\u00f2ng (T\u1eeb 2K\u03a9 \u0111\u1ebfn kho\u1ea3ng 10K\u03a9). Sau \u0111\u00f3, s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n \u00e1p c\u1ee7a con diode n\u00e0y r\u1ed3i c\u1ea5p ngu\u1ed3n cho m\u1ea1ch \u0111i\u1ec7n n\u00e0y. Ta s\u1ebd nh\u00ecn th\u1ea5y con diode n\u00e0y l\u00e0 diode 6V.\u00a0<\/span><\/p>\n

Tr\u00ean \u0111\u00e2y l\u00e0 chia s\u1ebb c\u1ee7a H\u1ecdc vi\u1ec7n iT v\u1ec1 c\u00e1ch x\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p c\u1ee7a diode zener. 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 H\u1ecdc vi\u1ec7n iT \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>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","protected":false},"excerpt":{"rendered":"

Diode Zener l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i diode ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay. Ch\u00ednh v\u00ec v\u1eady ng\u00e0y h\u00f4m nay, H\u1ecdc vi\u1ec7n iT.vn s\u1ebd chia s\u1ebb t\u1edbi c\u00e1c b\u1ea1n c\u00e1ch \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 th\u1ef1c hi\u1ec7n nh\u1ea5t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p c\u1ee7a diode zener nh\u00e9.<\/p>\n","protected":false},"author":95,"featured_media":20356,"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\/20355"}],"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=20355"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/20355\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/20356"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}