{"id":18720,"date":"2020-11-21T04:06:01","date_gmt":"2020-11-21T04:06:01","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=18720"},"modified":"2024-11-11T18:01:57","modified_gmt":"2024-11-11T11:01:57","slug":"dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=18720","title":{"rendered":"Dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c t\u00ednh dung kh\u00e1ng"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng quan tr\u1ecdng trong ki\u1ebfn th\u1ee9c \u0111i\u1ec7n t\u1eed c\u0103n b\u1ea3n. Ti\u1ebfp n\u1ed1i c\u00e1c b\u00e0i vi\u1ebft tr\u01b0\u1edbc, H\u1ecdc vi\u1ec7n iT s\u1ebd chia s\u1ebb t\u1edbi c\u00e1c ki\u1ebfn th\u1ee9c v\u1ec1 dung kh\u00e1ng t\u1ee5 \u0111i\u1ec7n c\u0169ng nh\u01b0 c\u00f4ng th\u1ee9c dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n.<\/span><\/p>\n<figure id=\"attachment_18721\" aria-describedby=\"caption-attachment-18721\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18721 size-full\" title=\"Dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c t\u00ednh dung kh\u00e1ng\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang.jpg\" alt=\"Dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c t\u00ednh dung kh\u00e1ng\" width=\"750\" height=\"400\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang.jpg 750w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-510x272.jpg 510w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-300x160.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-18721\" class=\"wp-caption-text\"><span style=\"font-size: 16px; color: #333333;\">Dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c t\u00ednh dung kh\u00e1ng<\/span><\/figcaption><\/figure>\n<h2 style=\"text-align: justify;\"><b>Dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n l\u00e0 g\u00ec?<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">V\u1edbi t\u00edn hi\u1ec7u <\/span><a href=\"https:\/\/hocvienit.vn\/tim-hieu-ve-dong-dien-xoay-chieu\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">\u0111i\u1ec7n xoay chi\u1ec1u<\/span><\/a><span style=\"font-weight: 400;\"> th\u00ec t\u1ee5 \u0111i\u1ec7n s\u1ebd cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua n\u00f3 c\u00f2n v\u1edbi t\u00edn hi\u1ec7u m\u1ed9t chi\u1ec1u th\u00ec t\u1ee5 \u0111i\u1ec7n ch\u1ec9 cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua trong m\u1ed9t kho\u1ea3ng th\u1eddi gian qu\u00e1 \u0111\u1ed9 \u0111\u1ea7u ti\u00ean (T\u1ee9c l\u00e0 khi con t\u1ee5 \u0111ang n\u1ea1p ho\u1eb7c \u0111ang x\u1ea3). V\u00e0 khi n\u00f3 \u0111\u00e3 n\u1ea1p \u0111\u1ea7y ho\u1eb7c x\u1ea3 h\u1ebft r\u1ed3i th\u00ec n\u00f3 s\u1ebd kh\u00f4ng cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua n\u1eefa.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho s\u1ee9c c\u1ea3n tr\u1edf d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u c\u1ee7a t\u1ee5 \u0111i\u1ec7n. N\u00f3 c\u00f3 t\u00ean g\u1ecdi l\u00e0 dung kh\u00e1ng ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 tr\u1edf kh\u00e1ng v\u00ec ng\u01b0\u1eddi ta mu\u1ed1n ph\u00e2n bi\u1ec7t n\u00f3 v\u1edbi \u0111i\u1ec7n tr\u1edf th\u00f4ng th\u01b0\u1eddng. T\u1ee9c l\u00e0 \u0111i\u1ec7n tr\u1edf c\u1ee7a t\u1ee5 \u0111i\u1ec7n trong t\u00edn hi\u1ec7u xoay chi\u1ec1u.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Gi\u00e1 tr\u1ecb \u0111i\u1ec7n dung c\u1ee7a t\u1ee5 \u0111i\u1ec7n trong m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u s\u1ebd c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua \u0111o\u1ea1n m\u1ea1ch n\u00e0y. T\u1ee9c l\u00e0 s\u1ee9c c\u1ea3n tr\u1edf d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u c\u1ee7a con t\u1ee5 \u0111i\u1ec7n nhi\u1ec1u hay \u00edt ph\u1ee5 thu\u1ed9c v\u00e0o gi\u00e1 tr\u1ecb \u0111i\u1ec7n dung c\u1ee7a t\u1ee5 \u0111i\u1ec7n.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u0110\u1eb7c bi\u1ec7t, khi thay \u0111\u1ed5i t\u1ea7n s\u1ed1 c\u1ee7a ngu\u1ed3n t\u00edn hi\u1ec7u c\u1ea5p v\u00e0o th\u00ec c\u00e1c b\u1ea1n s\u1ebd th\u1ea5y s\u1ee9c c\u1ea3n tr\u1edf d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u c\u1ee7a t\u1ee5 \u0111i\u1ec7n c\u0169ng thay \u0111\u1ed5i theo v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ea7n s\u1ed1 c\u1ee7a ngu\u1ed3n t\u00edn hi\u1ec7u.\u00a0<\/span><\/p>\n<figure id=\"attachment_17586\" aria-describedby=\"caption-attachment-17586\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-17586 size-full\" title=\"Nh\u1eefng h\u00ecnh d\u1ea1ng t\u1ee5 \u0111i\u1ec7n th\u01b0\u1eddng th\u1ea5y\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/09\/Nhung-hinh-dang-tu-dien-thuong-thay-1.jpg\" alt=\"Nh\u1eefng h\u00ecnh d\u1ea1ng t\u1ee5 \u0111i\u1ec7n th\u01b0\u1eddng th\u1ea5y\" width=\"750\" height=\"450\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/09\/Nhung-hinh-dang-tu-dien-thuong-thay-1.jpg 750w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/09\/Nhung-hinh-dang-tu-dien-thuong-thay-1-510x306.jpg 510w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/09\/Nhung-hinh-dang-tu-dien-thuong-thay-1-300x180.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-17586\" class=\"wp-caption-text\"><span style=\"font-size: 16px; color: #333333;\">Nh\u1eefng h\u00ecnh d\u1ea1ng t\u1ee5 \u0111i\u1ec7n th\u01b0\u1eddng th\u1ea5y<\/span><\/figcaption><\/figure>\n<h2 style=\"text-align: justify;\"><b>C\u00f4ng th\u1ee9c t\u00ednh dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u00ednh theo c\u00f4ng th\u1ee9c sau:<\/span><\/p>\n<p style=\"text-align: center;\"><b>Zc = 1\/wc = 1\/ (2 * \u03c0fc)<\/b><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Trong \u0111\u00f3:<\/span><\/p>\n<p style=\"text-align: justify;\"><b>W<\/b><span style=\"font-weight: 400;\"> ch\u00ednh l\u00e0 t\u1ea7n s\u1ed1 g\u00f3c c\u1ee7a d\u00f2ng \u0111i\u1ec7n<\/span><\/p>\n<p style=\"text-align: justify;\"><b>f<\/b><span style=\"font-weight: 400;\"> l\u00e0 t\u1ea7n s\u1ed1 c\u1ee7a d\u00f2ng \u0111i\u1ec7n<\/span><\/p>\n<p style=\"text-align: justify;\"><b>c<\/b><span style=\"font-weight: 400;\"> ch\u00ednh l\u00e0 \u0111i\u1ec7n dung c\u1ee7a d\u00f2ng \u0111i\u1ec7n\u00a0<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Dung kh\u00e1ng ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ea1i l\u01b0\u1ee3ng n\u00e0o?<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Gi\u00e1 tr\u1ecb dung kh\u00e1ng ph\u1ee5 thu\u1ed9c v\u00e0o hai y\u1ebfu t\u1ed1 ch\u00ednh: \u0110i\u1ec7n dung (C) v\u00e0 t\u1ea7n s\u1ed1 d\u00f2ng \u0111i\u1ec7n (f).<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u0110i\u1ec7n dung (C):<\/b><span style=\"font-weight: 400;\"> L\u00e0 \u0111\u1eb7c tr\u01b0ng ri\u00eang c\u1ee7a m\u1ed7i t\u1ee5 \u0111i\u1ec7n, \u0111o b\u1eb1ng \u0111\u01a1n v\u1ecb Fara (F). Th\u00f4ng th\u01b0\u1eddng, \u0111i\u1ec7n dung c\u1ee7a t\u1ee5 \u0111i\u1ec7n kh\u00f4ng thay \u0111\u1ed5i. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 linh ki\u1ec7n nh\u01b0 Varicap (diode bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n dung) c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n dung.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u1ea7n s\u1ed1 d\u00f2ng \u0111i\u1ec7n (f):<\/b><span style=\"font-weight: 400;\"> L\u00e0 s\u1ed1 l\u1ea7n dao \u0111\u1ed9ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n trong m\u1ed9t gi\u00e2y, \u0111o b\u1eb1ng \u0111\u01a1n v\u1ecb Hertz (Hz).<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_43858\" aria-describedby=\"caption-attachment-43858\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-43858 size-full\" title=\"T\u1ee5 \u0111i\u1ec7n\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-1.jpg\" alt=\"T\u1ee5 \u0111i\u1ec7n\" width=\"750\" height=\"449\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-1.jpg 750w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-1-300x180.jpg 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-1-510x305.jpg 510w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-43858\" class=\"wp-caption-text\">T\u1ee5 \u0111i\u1ec7n<\/figcaption><\/figure>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Nh\u01b0 v\u1eady, dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ea7n s\u1ed1 c\u1ee7a t\u00edn hi\u1ec7u c\u0169ng nh\u01b0 l\u00e0 gi\u00e1 tr\u1ecb \u0111i\u1ec7n dung c\u1ee7a con t\u1ee5 \u0111i\u1ec7n. Khi gi\u00e1 tr\u1ecb \u0111i\u1ec7n dung c\u1ee7a con t\u1ee5 \u0111i\u1ec7n c\u00e0ng l\u1edbn th\u00ec Zc c\u00e0ng nh\u1ecf. T\u1ee9c l\u00e0 t\u1ee5 \u0111i\u1ec7n c\u00f3 gi\u00e1 tr\u1ecb \u0111i\u1ec7n dung c\u00e0ng l\u1edbn th\u00ec cho ph\u00e9p d\u1eabn d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u c\u00e0ng nhi\u1ec1u. T\u01b0\u01a1ng t\u1ef1 nh\u01b0 th\u1ebf, khi t\u1ea7n s\u1ed1 c\u1ee7a t\u00edn hi\u1ec7u c\u00e0ng cao th\u00ec Zc c\u00e0ng nh\u1ecf, c\u00f3 ngh\u0129a l\u00e0 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua \u0111o\u1ea1n m\u1ea1ch c\u00e0ng l\u1edbn.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>K\u1ebft lu\u1eadn<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Ta c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn sau:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">T\u1ee5 \u0111i\u1ec7n cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u ch\u1ea1y qua. Gi\u00e1 tr\u1ecb d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua \u0111o\u1ea1n m\u1ea1ch n\u00e0y m\u1ea1nh hay y\u1ebfu n\u00f3 ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n, t\u1ee9c l\u00e0 n\u00f3 s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o b\u1ea3n th\u00e2n gi\u00e1 tr\u1ecb \u0111i\u1ec7n dung c\u1ee7a con t\u1ee5 \u0111i\u1ec7n v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ea7n s\u1ed1 c\u1ee7a ngu\u1ed3n t\u00edn hi\u1ec7u. Nh\u01b0 v\u1eady l\u00e0 trong t\u00edn hi\u1ec7u xoay chi\u1ec1u th\u00ec b\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u1ee5 \u0111i\u1ec7n l\u00e0m m\u1ed9t linh ki\u1ec7n \u0111\u1ec3 h\u1ea1n d\u00f2ng cho t\u1ea3i.\u00a0<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Gi\u1ea3 s\u1eed c\u00e1c b\u1ea1n c\u00f3 m\u1ed9t thi\u1ebft b\u1ecb \u0111i\u1ec7n n\u00e0o \u0111\u00f3 m\u00e0 c\u00e1c b\u1ea1n mu\u1ed1n h\u1ea1n d\u00f2ng cho n\u00f3 th\u00ec c\u00e1c b\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u1ee5 \u0111i\u1ec7n m\u1eafc n\u1ed1i ti\u1ebfp v\u1edbi t\u1ea3i ho\u1eb7c m\u1ed9t \u0111o\u1ea1n m\u1ea1ch \u1edf sau con t\u1ee5 \u0111i\u1ec7n \u0111\u00f3.\u00a0<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Gi\u00e1 tr\u1ecb dung kh\u00e1ng c\u1ee7a con t\u1ee5 \u0111i\u1ec7n ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ea7n s\u1ed1 c\u1ee7a ngu\u1ed3n t\u00edn hi\u1ec7u. Do \u0111\u00f3, khi c\u00e1c b\u1ea1n s\u1eed d\u1ee5ng m\u1ea1ch RC n\u00e0y th\u00ec c\u00e1c b\u1ea1n s\u1ebd t\u1ea1o ra \u0111\u01b0\u1ee3c m\u1ed9t m\u1ea1ch l\u1ecdc t\u00edn hi\u1ec7u.\u00a0<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_43859\" aria-describedby=\"caption-attachment-43859\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-43859 size-full\" title=\"M\u1ea1ch l\u1ecdc nhi\u1ec5u RC\" src=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-2.jpg\" alt=\"M\u1ea1ch l\u1ecdc nhi\u1ec5u RC\" width=\"750\" height=\"449\" srcset=\"https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-2.jpg 750w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-2-300x180.jpg 300w, https:\/\/hocvienit.vn\/wp-content\/uploads\/2020\/11\/dung-khang-cua-tu-dien-la-gi-cong-thuc-tinh-dung-khang-2-510x305.jpg 510w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-43859\" class=\"wp-caption-text\">M\u1ea1ch l\u1ecdc nhi\u1ec5u RC<\/figcaption><\/figure>\n<p style=\"text-align: justify;\"><b>V\u00ed d\u1ee5:<\/b><span style=\"font-weight: 400;\"> Khi b\u1ea1n mu\u1ed1n l\u1ecdc m\u1ed9t d\u1ea3i t\u1ea7n n\u00e0o \u0111\u00f3 th\u00ec b\u1ea1n s\u1ebd c\u1ea7n ph\u1ea3i bi\u1ebfn \u0111\u1ed5i t\u00edn hi\u1ec7u \u00e2m t\u1ea7n th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n. T\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u00f3 s\u1ebd bao g\u1ed3m r\u1ea5t nhi\u1ec1u d\u1ea3i t\u1ea7n kh\u00e1c nhau v\u00e0 \u0111\u01b0\u1ee3c \u0111\u01b0a qua m\u1ea1ch l\u1ecdc. B\u00e2y gi\u1edd n\u1ebfu b\u1ea1n mu\u1ed1n l\u1ecdc ra c\u00e1c \u00e2m b\u1ed5ng th\u00ec s\u1ebd m\u1eafc m\u1ea1ch l\u1ecdc v\u00e0o v\u00e0 l\u1ea5y t\u00edn hi\u1ec7u ra t\u1eeb con \u0111i\u1ec7n tr\u1edf. T\u1ea5t c\u1ea3 nh\u1eefng t\u00edn hi\u1ec7u \u00e2m b\u1ed5ng c\u00f3 t\u1ea7n s\u1ed1 cao th\u00ec s\u1ebd cho ph\u00e9p t\u00edn hi\u1ec7u ra v\u1edbi bi\u00ean \u0111\u1ed9 l\u1edbn v\u00e0 h\u1ea1n ch\u1ebf bi\u00ean \u0111\u1ed9 v\u1edbi c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n c\u00f3 d\u1ea3i t\u1ea7n th\u1ea5p.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Tr\u00ean \u0111\u00e2y l\u00e0 chia s\u1ebb c\u1ee7a H\u1ecdc vi\u1ec7n iT v\u1ec1 dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n. 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<p style=\"text-align: left;\"><i>M\u1ecdi chi ti\u1ebft xin vui l\u00f2ng li\u00ean h\u1ec7:<br \/>\n<\/i><strong>C\u00d4NG TY C\u1ed4 PH\u1ea6N H\u1eccC VI\u1ec6N IT<br \/>\n<\/strong><strong>MST: 0108733789<br \/>\n<\/strong><strong>Hotline: 0981 223 001<br \/>\n<\/strong><strong>Facebook:<\/strong>\u00a0<a href=\"http:\/\/www.fb.com\/hocvienit\" target=\"_blank\" rel=\"noopener\">www.fb.com\/hocvienit<\/a><br \/>\n<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 nofollow\">http:\/\/bit.ly\/Youtube_HOCVIENiT<\/a><br \/>\n<b>H\u1ec7 th\u1ed1ng c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o:\u00a0<\/b><a href=\"https:\/\/hocvienit.vn\/lien-he\/\" target=\"_blank\" rel=\"noopener\">https:\/\/hocvienit.vn\/lien-he\/<\/a><br \/>\n<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<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng quan tr\u1ecdng trong ki\u1ebfn th\u1ee9c \u0111i\u1ec7n t\u1eed c\u0103n b\u1ea3n. Ti\u1ebfp n\u1ed1i c\u00e1c b\u00e0i vi\u1ebft tr\u01b0\u1edbc, H\u1ecdc vi\u1ec7n iT.vn s\u1ebd chia s\u1ebb t\u1edbi c\u00e1c ki\u1ebfn th\u1ee9c v\u1ec1 dung kh\u00e1ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n c\u0169ng nh\u01b0 c\u00f4ng th\u1ee9c t\u00ednh c\u1ee7a n\u00f3.<\/p>\n","protected":false},"author":95,"featured_media":18721,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[734],"tags":[661,246],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/18720"}],"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=18720"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/18720\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/18721"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}