{"id":7719,"date":"2019-02-05T13:08:49","date_gmt":"2019-02-05T13:08:49","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=7719"},"modified":"2025-02-13T10:49:33","modified_gmt":"2025-02-13T03:49:33","slug":"xac-dinh-hu-hong-dien-tro-tu-dien-cuon-day-bien-ap","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=7719","title":{"rendered":"X\u00e1c \u0111\u1ecbnh h\u01b0 h\u1ecfng \u00a0\u0111i\u1ec7n tr\u1edf, t\u1ee5 \u0111i\u1ec7n, cu\u1ed9n d\u00e2y, bi\u1ebfn \u00e1p&#8230; tr\u00ean main"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u0110\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t k\u1ef9 thu\u1eadt vi\u00ean s\u1eeda ch\u1eefa laptop gi\u1ecfi \u0111\u00f2i h\u1ecfi b\u1ea1n c\u1ea7n c\u00f3 c\u00e1c ki\u1ebfn th\u1ee9c v\u1ec1 \u0111i\u1ec7n t\u1eed laptop. V\u00ec v\u1eady vi\u1ec7c nh\u1eadn bi\u1ebft \u00a0h\u01b0 h\u1ecfng \u0111i\u1ec7n tr\u1edf, t\u1ee5 \u0111i\u1ec7n, cu\u1ed9n d\u00e2y, diode\u2026 l\u00e0 m\u1ed9t trong nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n b\u1ea1n c\u1ea7n bi\u1ebft.<\/span><\/p>\n<figure id=\"attachment_7898\" aria-describedby=\"caption-attachment-7898\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7898 size-full\" title=\"X\u00e1c \u0111\u1ecbnh h\u01b0 h\u1ecfng \u0111i\u1ec7n tr\u1edf, t\u1ee5 \u0111i\u1ec7n, cu\u1ed9n d\u00e2y, bi\u1ebfn \u00e1p\u2026 tr\u00ean main\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/xac-dinh-hu-hong-dien-tro-tu-dien-cuon-day-bien-ap-tren-main.jpg\" alt=\"X\u00e1c \u0111\u1ecbnh h\u01b0 h\u1ecfng \u0111i\u1ec7n tr\u1edf, t\u1ee5 \u0111i\u1ec7n, cu\u1ed9n d\u00e2y, bi\u1ebfn \u00e1p\u2026 tr\u00ean main\" width=\"600\" height=\"380\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/xac-dinh-hu-hong-dien-tro-tu-dien-cuon-day-bien-ap-tren-main.jpg 600w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/xac-dinh-hu-hong-dien-tro-tu-dien-cuon-day-bien-ap-tren-main-510x323.jpg 510w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/xac-dinh-hu-hong-dien-tro-tu-dien-cuon-day-bien-ap-tren-main-300x190.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-7898\" class=\"wp-caption-text\">X\u00e1c \u0111\u1ecbnh h\u01b0 h\u1ecfng \u0111i\u1ec7n tr\u1edf, t\u1ee5 \u0111i\u1ec7n, cu\u1ed9n d\u00e2y, bi\u1ebfn \u00e1p\u2026 tr\u00ean main<\/figcaption><\/figure>\n<h2 style=\"text-align: justify;\">1. Cu\u1ed9n d\u00e2y<\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Cu\u1ed9n d\u00e2y hay cu\u1ed9n c\u1ea3m tr\u00ean main l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu tr\u00ean bo m\u1ea1ch \u0111i\u1ec7n t\u1eed n\u00f3i chung v\u00e0 bo m\u1ea1ch laptop n\u00f3i ri\u00eang. Vi\u1ec7c ki\u1ec3m tra cu\u1ed9n d\u00e2y tr\u00ean main s\u1ebd gi\u00fap ta n\u1eafm \u0111\u01b0\u1ee3c nguy\u00ean l\u00fd v\u00e0 c\u00e1ch \u0111o \u0111\u1ea1c mosfet \u0111\u1ec3 s\u1eeda ch\u1eefa c\u00e1c l\u1ed7i ngu\u1ed3n laptop.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">B\u00e0i vi\u1ebft tr\u01b0\u1edbc t\u00f4i \u0111\u00e3 n\u00f3i v\u1ec1 c\u00e1c ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 cu\u1ed9n d\u00e2y nh\u01b0: c\u1ea5u t\u1ea1o cu\u1ed9n c\u1ea3m, \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng c\u1ee7a cu\u1ed9n d\u00e2y, t\u00ednh ch\u1ea5t v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a cu\u1ed9n d\u00e2y. <\/span><a href=\"https:\/\/hocvienit.vn\/co-ban-ve-cuon-day\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">XEM L\u1ea0I<\/span><\/a><span style=\"font-weight: 400;\">. H\u00f4m nay ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 cu\u1ed9n d\u00e2y tr\u00ean main laptop \u00a0&#8211; m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a laptop.<\/span><\/p>\n<figure id=\"attachment_7720\" aria-describedby=\"caption-attachment-7720\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7720 size-medium\" title=\"C\u00e1c lo\u1ea1i cu\u1ed9n d\u00e2y tr\u00ean Main\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/cuon-day-300x260.png\" alt=\"C\u00e1c lo\u1ea1i cu\u1ed9n d\u00e2y tr\u00ean Main\" width=\"300\" height=\"260\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/cuon-day-300x260.png 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/cuon-day-510x442.png 510w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/cuon-day.png 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-7720\" class=\"wp-caption-text\">C\u00e1c lo\u1ea1i cu\u1ed9n d\u00e2y tr\u00ean Main<\/figcaption><\/figure>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Cu\u1ed9n d\u00e2y tr\u00ean main laptop \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u l\u00e0 L, PL. N\u00f3 \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb m\u1ed9t s\u1ed1 v\u00f2ng d\u00e2y b\u1eb1ng \u0111\u1ed3ng ph\u1ee7 l\u1edbp c\u00e1ch \u0111i\u1ec7n, ph\u1ea7n l\u00f5i c\u1ee7a cu\u1ed9n c\u1ea3m t\u00f9y t\u1eebng lo\u1ea1i c\u00f3 th\u1ec3 l\u00e0 kh\u00f4ng kh\u00ed, th\u00e9p k\u1ef9 thu\u1eadt, ho\u1eb7c v\u1eadt hi\u1ec7u Ferrite.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">V\u1ec1 c\u01a1 b\u1ea3n, trong main laptop cu\u1ed9n d\u00e2y c\u00f3 nhi\u1ec7m v\u1ee5 gi\u1eef c\u01b0\u1eddng \u0111\u1ed9ng d\u00f2ng \u0111i\u1ec7n. Trong \u0111\u00f3 nh\u1eefng cu\u1ed9n d\u00e2y nh\u1ecf th\u00ec \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m c\u1ea7u ch\u00ec b\u1ea3o v\u1ec7.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Tr\u00ean main laptop c\u00f3 nhi\u1ec1u b\u1ed9 ph\u1eadn, m\u1ed7i b\u1ed9 ph\u1eadn \u0111\u1ec1u s\u1eed d\u1ee5ng cu\u1ed9n d\u00e2y l\u1edbn \u0111\u1ec3 duy tr\u00ec c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n m\u1eafc d\u01b0\u1edbi feet k\u00e8m theo \u0111\u00f3 l\u00e0 cu\u1ed9n d\u00e2y nh\u1ecf m\u1eafc n\u1ed1i c\u1ea7u ch\u00ec sau IC c\u1ee7a \u00a0ngu\u1ed3n, ch\u1ee9c n\u0103ng \u0111\u1ec3 b\u1ea3o v\u1ec7 IC.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Khi c\u1ea5p ngu\u1ed3n cho main th\u00ec cu\u1ed9n d\u00e2y l\u1edbn c\u00f3 ch\u1ee9c n\u0103ng \u0111o \u0111i\u1ec7n \u00e1p ki\u1ec3m tra xem \u0111i\u1ec7n \u00e1p b\u1ed9 ngu\u1ed3n c\u00f3 t\u1ed1t hay kh\u00f4ng. <\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Th\u1ef1c t\u1ebf cu\u1ed9n d\u00e2y tr\u00ean main h\u1ecfng r\u1ea5t \u00edt x\u1ea3y ra, khi cu\u1ed9n d\u00e2y tr\u00ean main g\u1eb7p v\u1ea5n \u0111\u1ec1 g\u00ec x\u1ea3y ra, b\u1ea1n n\u00ean test l\u1ed7i b\u1eb1ng c\u00e1ch d\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o \u1edf ch\u1ebf \u0111\u1ed9 th\u00f4ng m\u1ea1ch X1, sau \u0111\u00f3 d\u00f9ng 2 que \u0111\u1eb7t v\u00e0o 2 \u0111\u1ea7u cu\u1ed9n d\u00e2y. N\u1ebfu th\u00f4ng m\u1ea1ch th\u00ec v\u1eabn t\u1ed1t v\u00e0 ng\u01b0\u1ee3c l\u1ea1i c\u00f3 th\u1ec3 cu\u1ed9n d\u00e2y \u0111\u00e3 b\u1ecb h\u1ecfng ho\u1eb7c b\u1ecb \u0111\u1ee9t.<\/span><\/p>\n<h2 style=\"text-align: justify;\">2. T\u1ee5 \u0111i\u1ec7n<\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">T\u1ee5 \u0111i\u1ec7n l\u00e0 linh ki\u1ec7n \u0111i\u1ec7n t\u1eed th\u1ee5 \u0111\u1ed9ng \u0111\u01b0\u1ee3c t\u1ea1o b\u1edfi hai b\u1ec1 m\u1eb7t d\u1eabn \u0111i\u1ec7n \u0111\u01b0\u1ee3c ng\u0103n c\u00e1c b\u1edfi \u0111i\u1ec7n m\u00f4i. Khi c\u00f3 ch\u00eanh l\u1ec7ch \u0111i\u1ec7n th\u1ebf t\u1ea1i hai b\u1ec1 m\u1eb7t, t\u1ea1i c\u00e1c b\u1ec1 m\u1eb7t s\u1ebd xu\u1ea5t hi\u1ec7n \u0111i\u1ec7n t\u00edch c\u00f9ng c\u01b0\u1eddng \u0111\u1ed9, nh\u01b0ng tr\u00e1i d\u1ea5u. Nh\u1eefng \u0111\u1ecbnh ngh\u0129a th\u00ec th\u1eadt l\u00e0 kh\u00f3 hi\u1ec3u, m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n l\u00e0 linh ki\u1ec7n c\u00f3 kh\u1ea3 n\u0103ng gi\u1eefa \u0111i\u1ec7n v\u00e0 ph\u00f3ng \u0111i\u1ec7n. \u0110\u00f3 l\u00e0 kh\u00e1i ni\u1ec7m v\u1ec1 t\u1ee5 \u0111i\u1ec7n m\u00e0 t\u00f4i \u0111\u00e3 n\u00f3i \u0111\u1ebfn trong b\u00e0i \u201c<\/span><a href=\"https:\/\/hocvienit.vn\/co-ban-ve-tu-dien-p2-2\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">C\u01a1 b\u1ea3n v\u1ec1 t\u1ee5 \u0111i\u1ec7n<\/span><\/a><span style=\"font-weight: 400;\">\u201d tr\u01b0\u1edbc \u0111\u00f3.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><strong>H\u01b0\u1edbng d\u1eabn \u0111o t\u1ee5 \u0111i\u1ec7n b\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng<\/strong><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u0110\u1ec3 \u00a0ki\u1ec3m tra \u0111\u1ed9 ph\u00f3ng n\u1ea1p v\u00e0 h\u01b0 h\u1ecfng c\u1ee7a t\u1ee5 \u0111i\u1ec7n b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng thang \u0111i\u1ec7n tr\u1edf c\u1ee7a \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng. Khi \u0111o t\u1ee5 \u0111i\u1ec7n, n\u1ebfu l\u00e0 t\u1ee5 g\u1ed1m ta d\u00f9ng thang \u0111o x1K ohm ho\u1eb7c 10K ohm, c\u00f2n n\u1ebfu l\u00e0 t\u1ee5 h\u00f3a ta d\u00f9ng x1 ohm ho\u1eb7c x10 ohm.<\/span><\/p>\n<figure id=\"attachment_7723\" aria-describedby=\"caption-attachment-7723\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7723 size-medium\" title=\"H\u01b0\u1edbng d\u1eabn \u0111o t\u1ee5 \u0111i\u1ec7n b\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/tu-dien-1-300x243.png\" alt=\"H\u01b0\u1edbng d\u1eabn \u0111o t\u1ee5 \u0111i\u1ec7n b\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng\" width=\"300\" height=\"243\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/tu-dien-1-300x243.png 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/tu-dien-1-510x412.png 510w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/tu-dien-1.png 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-7723\" class=\"wp-caption-text\">H\u01b0\u1edbng d\u1eabn \u0111o t\u1ee5 \u0111i\u1ec7n b\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng<\/figcaption><\/figure>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">D\u1ef1a theo h\u00ecnh v\u1ebd \u0111o t\u1ee5 g\u1ed1m \u1edf tr\u00ean cho ta bi\u1ebft:<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Kim ph\u00f3ng n\u1ea1p khi ta \u0111o &gt;&gt; T\u1ee5 C1 c\u00f2n t\u1ed1t<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">L\u00ean kim nh\u01b0ng kh\u00f4ng tr\u1edf v\u1ec1 v\u1ecb tr\u00ed c\u0169 &gt;&gt; T\u1ee5 C2 b\u1ecb d\u00f2<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Kim \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng n\u00ean 0 ohm v\u00e0 kh\u00f4ng tr\u1edf v\u1ec1 v\u1ecb tr\u00ed c\u0169 &gt;&gt; T\u1ee5 C3 b\u1ecb ch\u1eadp<\/span><\/p>\n<figure id=\"attachment_7722\" aria-describedby=\"caption-attachment-7722\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7722 size-medium\" title=\"H\u01b0\u1edbng d\u1eabn \u0111o t\u1ee5 \u0111i\u1ec7n b\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/tu-dien-300x244.png\" alt=\"H\u01b0\u1edbng d\u1eabn \u0111o t\u1ee5 \u0111i\u1ec7n b\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng\" width=\"300\" height=\"244\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/tu-dien-300x244.png 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/tu-dien-510x414.png 510w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/tu-dien.png 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-7722\" class=\"wp-caption-text\">H\u01b0\u1edbng d\u1eabn \u0111o t\u1ee5 \u0111i\u1ec7n b\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng<\/figcaption><\/figure>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">D\u1ef1a theo h\u00ecnh v\u1ebd \u0111o t\u1ee5 h\u00f3a, ta c\u00f3 th\u1ec3 k\u1ebft lu\u1eadn:<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Th\u1ef1c t\u1ebf, t\u1ee5 h\u00f3a r\u1ea5t \u00edt khi b\u1ecb d\u00f2 ho\u1eb7c b\u1ecb ch\u1eadp m\u00e0 ch\u1ee7 y\u1ebfu b\u1ecb kh\u00f4 (hay gi\u1ea3m \u0111i\u1ec7n dung). \u00a0\u0110\u1ec3 bi\u1ebft m\u1ee9c \u0111\u1ed9 h\u01b0 h\u1ecfng c\u1ee7a t\u1ee5 h\u00f3a, trong qu\u00e1 tr\u00ecnh \u0111o t\u1ee5 \u0111i\u1ec7n b\u1ea1n n\u00ean so s\u00e1nh v\u1edbi m\u1ed9t t\u1ee5 m\u1edbi c\u00f3 c\u00f9ng \u0111i\u1ec7n dung.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Khi so s\u00e1nh 2 t\u1ee5 C1 v\u00e0 C2, n\u1ebfu ta th\u1ea5y t\u1ee5 C2 c\u00f3 \u0111\u1ed9 ph\u00f3ng \u0111i\u1ec7n nh\u1ecf h\u01a1n t\u1ee5 C1 th\u00ec ch\u1ee9ng t\u1ecf t\u1ee5 C1 b\u1ecb kh\u00f4.<\/span><\/p>\n<p style=\"text-align: justify;\"><i><span style=\"font-weight: 400;\">* Ch\u00fa \u00fd: Khi t\u1ee5 ph\u00f3ng n\u1ea1p, b\u1ea1n n\u00ean \u0111\u1ea3o chi\u1ec1u que \u0111o v\u00e0i l\u1ea7n \u0111\u1ec3 xem \u0111\u1ed9 ph\u00f3ng n\u1ea1p.<\/span><\/i><\/p>\n<h2 style=\"text-align: justify;\">3. \u0110i\u1ec7n tr\u1edf<\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Hi\u1ec3u m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, \u0111i\u1ec7n tr\u1edf l\u00e0 s\u1ef1 c\u1ea3n tr\u1edf d\u00f2ng \u0111i\u1ec7n c\u1ee7a m\u1ed9t v\u1eadt d\u1eabn \u0111i\u1ec7n. N\u1ebfu m\u1ed9t v\u1eadt d\u1eabn \u0111i\u1ec7n t\u1ed1t th\u00ec \u0111i\u1ec7n tr\u1edf c\u1ee7a v\u1eadt \u0111\u00f3 nh\u1ecf. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu v\u1eadt d\u1eabn \u0111i\u1ec7n k\u00e9m th\u00ec \u0111i\u1ec7n tr\u1edf s\u1ebd l\u1edbn. V\u1eadt c\u00e1ch \u0111i\u1ec7n c\u00f3 \u0111i\u1ec7n tr\u1edf v\u00f4 c\u00f9ng l\u1edbn.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">V\u1edbi thang \u0111o \u0111i\u1ec7n tr\u1edf c\u1ee7a \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng b\u1ea1n c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng \u0111o \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u th\u1ee9:<\/span><\/p>\n<figure id=\"attachment_7724\" aria-describedby=\"caption-attachment-7724\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7724 size-medium\" title=\"\u0110i\u1ec7n tr\u1edf tr\u00ean main laptop\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/dien-tro-300x300.png\" alt=\"\u0110i\u1ec7n tr\u1edf tr\u00ean main laptop\" width=\"300\" height=\"300\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/dien-tro-300x300.png 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/dien-tro-100x100.png 100w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/dien-tro-150x150.png 150w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/dien-tro-367x367.png 367w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/dien-tro-85x85.png 85w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/dien-tro-50x50.png 50w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/dien-tro.png 500w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-7724\" class=\"wp-caption-text\">\u0110i\u1ec7n tr\u1edf tr\u00ean main laptop<\/figcaption><\/figure>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110o gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ki\u1ec3m tra s\u1ef1 th\u00f4ng m\u1ea1ch c\u1ee7a m\u1ed9t \u0111o\u1ea1n d\u00e2y d\u1eabn<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ki\u1ec3m tra s\u1ef1 th\u00f4ng m\u1ea1ch c\u1ee7a m\u1ed9t \u0111o\u1ea1n m\u1ea1ch in<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ki\u1ec3m tra c\u00e1c cu\u1ed9n d\u00e2y bi\u1ebfn \u00e1p c\u00f3 th\u00f4ng m\u1ea1ch kh\u00f4ng<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Ki\u1ec3m tra s\u1ef1 ph\u00f3ng n\u1ea1p c\u1ee7a t\u1ee5 \u0111i\u1ec7n ( nh\u01b0 t\u00f4i \u0111\u00e3 h\u01b0\u1edbng d\u1eabn \u1edf tr\u00ean)<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110o ki\u1ec3m tra t\u1ee5 c\u00f3 d\u00f2 hay ch\u1eadp \u0111i\u1ec7n kh\u00f4ng<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110o ki\u1ec3m tra m\u1ea1ch kh\u00e1ng c\u1ee7a m\u1ea1ch \u0111i\u1ec7n<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u0110o ki\u1ec3m tra \u0111i \u1ed1t v\u00e0 b\u00f3ng b\u00e1n d\u1eabn<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">V\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n tr\u1edf, tr\u01b0\u1edbc \u0111\u00f3 t\u00f4i \u0111\u00e3 h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u1ee5 th\u1ec3 trong b\u00e0i \u201c<\/span><a href=\"https:\/\/hocvienit.vn\/cach-do-dien-tro-bang-dong-ho\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">C\u00e1ch \u0111o \u0111i\u1ec7n tr\u1edf v\u00e0 \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng<\/span><\/a><span style=\"font-weight: 400;\">\u201d<\/span><\/p>\n<h2 style=\"text-align: justify;\">4. Diode &#8211; \u0110i \u1ed1t<\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Nh\u01b0 trong b\u00e0i vi\u1ebft v\u1ec1 <\/span><a href=\"https:\/\/hocvienit.vn\/co-ban-ve-diot-diode\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Diode <\/span><\/a><span style=\"font-weight: 400;\">tr\u01b0\u1edbc \u0111\u00f3 t\u00f4i \u0111\u00e3 n\u00f3i, diode hay \u0111i-\u1ed1t l\u00e0 linh ki\u1ec7n kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb ch\u1ea5t b\u00e1n d\u1eabn. 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<figure id=\"attachment_7721\" aria-describedby=\"caption-attachment-7721\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7721 size-medium\" title=\"C\u00e1ch \u0111o Diot b\u1eb1ng \u0111\u1ed3ng h\u1ed3\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/diode-300x281.png\" alt=\"C\u00e1ch \u0111o Diot b\u1eb1ng \u0111\u1ed3ng h\u1ed3\" width=\"300\" height=\"281\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/diode-300x281.png 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/diode-510x478.png 510w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2019\/02\/diode.png 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-7721\" class=\"wp-caption-text\">C\u00e1ch \u0111o Diode b\u1eb1ng \u0111\u1ed3ng h\u1ed3<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><strong>C\u00e1ch \u0111o ki\u1ec3m tra Diode c\u01a1 b\u1ea3n<\/strong><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\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<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u0110o chi\u1ec1u thu\u1eadn que \u0111en v\u00e0o Anot, que \u0111\u1ecf v\u00e0o Katot =&gt; kim l\u00ean, \u0111\u1ea3o chi\u1ec1u \u0111o kim kh\u00f4ng l\u00ean l\u00e0 =&gt; Diode t\u1ed1t \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">N\u1ebfu \u0111o c\u1ea3 hai chi\u1ec1u kim l\u00ean = 0\u2126 =&gt; l\u00e0 Diode b\u1ecb ch\u1eadp.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">N\u1ebfu \u0111o thu\u1eadn chi\u1ec1u m\u00e0 kim kh\u00f4ng l\u00ean =&gt; l\u00e0 Diode b\u1ecb \u0111\u1ee9t.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\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<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">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<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Tr\u00ean \u0111\u00e2y l\u00e0 c\u00e1c h\u01b0\u1edbng d\u1eabn c\u1ee7a H\u1ecdc vi\u1ec7n iT v\u1ec1 c\u00e1ch nh\u1eadn bi\u1ebft x\u00e1c \u0111\u1ecbnh h\u01b0 h\u1ecfng t\u1ee5 \u0111i\u1ec7n, \u0111i\u1ec7n tr\u1edf, diode, cu\u1ed9n d\u00e2y\u2026 hi v\u1ecdng r\u1eb1ng b\u00e0i vi\u1ebft tr\u00ean c\u00f3 th\u1ec3 gi\u00fap \u00edch \u0111\u01b0\u1ee3c cho b\u1ea1n trong qu\u00e1 tr\u00ecnh h\u1ecdc s\u1eeda ch\u1eefa laptop. Ch\u00fac b\u1ea1n th\u00e0nh c\u00f4ng!<\/span><\/p>\n<p><i>M\u1ecdi chi ti\u1ebft xin vui l\u00f2ng li\u00ean h\u1ec7:<\/i><\/p>\n<p><strong>C\u00d4NG TY C\u1ed4 PH\u1ea6N H\u1eccC VI\u1ec6N IT<\/strong><\/p>\n<p><strong>MST: 0108733789<\/strong><\/p>\n<p><strong>Hotline: 0981 223 001<\/strong><\/p>\n<p><strong>Facebook:<\/strong>\u00a0<a href=\"http:\/\/www.fb.com\/hocvienit\" target=\"_blank\" rel=\"noopener\">www.fb.com\/hocvienit<\/a><\/p>\n<p><strong>\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>\u00a0<a href=\"http:\/\/bit.ly\/Youtube_HOCVIENiT\" target=\"_blank\" rel=\"noopener\">http:\/\/bit.ly\/Youtube_HOCVIENiT<\/a><\/p>\n<p><strong>Tham gia c\u1ed9ng \u0111\u1ed3ng H\u1ecdc vi\u1ec7n IT.vn t\u1ea1i:<\/strong>\u00a0<a href=\"https:\/\/www.facebook.com\/groups\/www.hocvienit.vn\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.facebook.com\/groups\/www.hocvienit.vn\/<\/a><\/p>\n<p><strong><i>H\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":"<p>\u0110\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t k\u1ef9 thu\u1eadt vi\u00ean s\u1eeda ch\u1eefa laptop gi\u1ecfi \u0111\u00f2i h\u1ecfi b\u1ea1n c\u1ea7n c\u00f3 c\u00e1c ki\u1ebfn th\u1ee9c v\u1ec1 \u0111i\u1ec7n t\u1eed laptop. V\u00ec v\u1eady vi\u1ec7c nh\u1eadn bi\u1ebft  h\u01b0 h\u1ecfng \u0111i\u1ec7n tr\u1edf, t\u1ee5 \u0111i\u1ec7n, cu\u1ed9n d\u00e2y, diode\u2026 l\u00e0 m\u1ed9t trong nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n b\u1ea1n c\u1ea7n bi\u1ebft.<\/p>\n","protected":false},"author":95,"featured_media":7898,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[734],"tags":[247,248,245,246],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/7719"}],"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=7719"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/7719\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/7898"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}