{"id":4872,"date":"2023-03-29T07:58:33","date_gmt":"2023-03-29T07:58:33","guid":{"rendered":"https:\/\/www.wehopower.com\/?post_type=news&#038;p=4872"},"modified":"2026-08-31T14:12:22","modified_gmt":"2026-08-31T06:12:22","slug":"how-to-better-understand-ac-dc-power-supplies","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ngu\u1ed3n \u0111i\u1ec7n AC\/DC"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#Introduction_to_Power_Supply\" >Gi\u1edbi thi\u1ec7u v\u1ec1 Ngu\u1ed3n \u0111i\u1ec7n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#AC_Power\" >Ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#DC_Power\" >Ngu\u1ed3n DC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#AC_Power_vs_DC_Power_Comarison\" >So s\u00e1nh ngu\u1ed3n AC v\u00e0 ngu\u1ed3n DC<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#What_is_ACDC_Power_Supply\" >Ngu\u1ed3n \u0111i\u1ec7n AC\/DC l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#Linear_ACDC_Power_Supply\" >Ngu\u1ed3n \u0111i\u1ec7n AC\/DC tuy\u1ebfn t\u00ednh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#Switching_ACDC_Power_Supply\" >Chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n AC\/DC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#Single-Phase_vs_Three-Phase_Power_Supplies\" >Ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha so v\u1edbi ngu\u1ed3n \u0111i\u1ec7n ba pha<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#Applications_of_ACDC_Power_Supplies\" >\u1ee8ng d\u1ee5ng c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n AC\/DC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#Challenges_in_AC-DC_Power_Supply_Design\" >Nh\u1eefng th\u00e1ch th\u1ee9c trong thi\u1ebft k\u1ebf b\u1ed9 ngu\u1ed3n AC-DC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.wehopower.com\/vi\/news\/how-to-better-understand-ac-dc-power-supplies\/#Summary\" >B\u1ea3n t\u00f3m t\u1eaft<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction_to_Power_Supply\"><\/span>Gi\u1edbi thi\u1ec7u v\u1ec1 Ngu\u1ed3n \u0111i\u1ec7n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ef1a ch\u1ecdn ngu\u1ed3n \u0111i\u1ec7n ph\u00f9 h\u1ee3p l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed. Ngu\u1ed3n \u0111i\u1ec7n AC (d\u00f2ng xoay chi\u1ec1u) sang DC (d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u) v\u00e0 <strong><a href=\"https:\/\/www.wehopower.com\/vi\/product_category\/dc-dc-converter\/\"><u>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i DC\/DC<\/u><\/a><\/strong>\u00a0l\u00e0 hai l\u1ef1a ch\u1ecdn ch\u00ednh \u0111\u1ec3 c\u1ea5p ngu\u1ed3n cho c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y.<\/p>\n<p>D\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u th\u01b0\u1eddng c\u1ea7n thi\u1ebft cho c\u00e1c thi\u1ebft b\u1ecb ch\u1ea1y b\u1eb1ng \u0111\u1ed9ng c\u01a1, trong khi d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u1ea1i ph\u1ed5 bi\u1ebfn trong c\u00e1c h\u1ed9 gia \u0111\u00ecnh. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, b\u1ea1n c\u1ea7n c\u00f3 b\u1ed9 ngu\u1ed3n AC\/DC \u0111\u1ec3 th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i ph\u00f9 h\u1ee3p \u2014 b\u1ea1n c\u00f3 th\u1ec3 \u0111\u00e3 s\u1eed d\u1ee5ng b\u1ed9 ngu\u1ed3n n\u00e0y tr\u01b0\u1edbc \u0111\u00e2y m\u00e0 kh\u00f4ng h\u1ec1 bi\u1ebft!<\/p>\n<h3><span class=\"ez-toc-section\" id=\"AC_Power\"><\/span>Ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC) l\u00e0 d\u1ea1ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c h\u1ea7u h\u1ebft c\u00e1c gia \u0111\u00ecnh v\u00e0 doanh nghi\u1ec7p s\u1eed d\u1ee5ng khi k\u1ebft n\u1ed1i v\u1edbi l\u01b0\u1edbi \u0111i\u1ec7n. D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u thay \u0111\u1ed5i h\u01b0\u1edbng \u0111\u1ecbnh k\u1ef3 v\u1edbi t\u1ea7n s\u1ed1 v\u00e0 \u0111i\u1ec7n \u00e1p nh\u1ea5t \u0111\u1ecbnh. Nh\u1eefng t\u1ea7n s\u1ed1 v\u00e0 \u0111i\u1ec7n \u00e1p kh\u00e1c nhau n\u00e0y t\u1ea1o ra d\u1ea1ng s\u00f3ng thay \u0111\u1ed5i t\u1eeb d\u01b0\u01a1ng sang \u00e2m theo th\u1eddi gian.<\/p>\n<p>\u0110i\u1ec7n \u0111\u01b0\u1ee3c t\u1ea1o ra v\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n v\u00e0 \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb ngu\u1ed3n \u0111\u1ebfn khu d\u00e2n c\u01b0 v\u00e0 th\u01b0\u01a1ng m\u1ea1i. M\u00e1y ph\u00e1t \u0111i\u1ec7n t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u b\u1eb1ng c\u00e1ch quay nam ch\u00e2m b\u00ean trong cu\u1ed9n d\u00e2y, t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n trong d\u00e2y d\u1eabn. Ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u (AC) n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c truy\u1ec1n qua h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n t\u1edbi m\u00e1y bi\u1ebfn \u00e1p, gi\u00fap gi\u1ea3m \u0111i\u1ec7n \u00e1p \u0111\u1ec3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng an to\u00e0n trong gia \u0111\u00ecnh v\u00e0 doanh nghi\u1ec7p.<\/p>\n<p>B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong b\u1ea5t k\u1ef3 thi\u1ebft k\u1ebf ngu\u1ed3n \u0111i\u1ec7n n\u00e0o l\u00e0 x\u00e1c \u0111\u1ecbnh d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o. Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, ngu\u1ed3n \u0111i\u1ec7n \u00e1p v\u00e0o l\u01b0\u1edbi l\u00e0 d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u. D\u1ea1ng s\u00f3ng \u0111i\u1ec3n h\u00ecnh c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 s\u00f3ng h\u00ecnh sin (xem H\u00ecnh 1)<\/p>\n<h3><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-6240\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2023\/03\/AC-Waveform-and-Basic-Parameters.png?quality=85&strip=all\" alt=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n Ti\u00eau \u0111\u1ec1 v\u1ec1 ngu\u1ed3n \u0111i\u1ec7n AC\/DC=\" width=\"925\" height=\"454\" how to better understand><\/h3>\n<p>M\u1ed9t s\u1ed1 ch\u1ec9 b\u00e1o ph\u1ea3i \u0111\u01b0\u1ee3c xem x\u00e9t khi s\u1eed d\u1ee5ng ngu\u1ed3n AC:<\/p>\n<p><strong>\u0110i\u1ec7n \u00e1p\/d\u00f2ng \u0111i\u1ec7n c\u1ef1c \u0111\u1ea1i:<\/strong> \u0110i\u1ec1u n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn bi\u00ean \u0111\u1ed9 t\u1ed1i \u0111a m\u00e0 s\u00f3ng c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c.<\/p>\n<p><strong>T\u00ednh th\u01b0\u1eddng xuy\u00ean:<\/strong> N\u00f3 bi\u1ec3u th\u1ecb s\u1ed1 chu k\u1ef3 m\u00e0 m\u1ed9t s\u00f3ng ho\u00e0n th\u00e0nh trong m\u1ed9t gi\u00e2y, v\u1edbi th\u1eddi gian c\u1ea7n thi\u1ebft \u0111\u1ec3 ho\u00e0n th\u00e0nh m\u1ed9t chu k\u1ef3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t chu k\u1ef3.<\/p>\n<p><strong>\u0110i\u1ec7n \u00e1p\/d\u00f2ng \u0111i\u1ec7n trung b\u00ecnh:<\/strong> Gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a \u0111i\u1ec7n \u00e1p t\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec3m trong m\u1ed9t chu k\u1ef3. Trong s\u00f3ng AC thu\u1ea7n t\u00fay kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 \u0111i\u1ec7n \u00e1p DC ch\u1ed3ng l\u00ean n\u00e0o, m\u1ee9c trung b\u00ecnh n\u00e0y s\u1ebd b\u1eb1ng 0, v\u00ec hai n\u1eeda d\u01b0\u01a1ng v\u00e0 \u00e2m s\u1ebd v\u00f4 hi\u1ec7u h\u00f3a l\u1eabn nhau.<\/p>\n<p><strong>B\u00ecnh ph\u01b0\u01a1ng trung b\u00ecnh g\u1ed1c \u0111i\u1ec7n \u00e1p\/d\u00f2ng \u0111i\u1ec7n:<\/strong> Gi\u00e1 tr\u1ecb n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 c\u0103n b\u1eadc hai c\u1ee7a b\u00ecnh ph\u01b0\u01a1ng trung b\u00ecnh m\u1ed9t k\u1ef3 c\u1ee7a \u0111i\u1ec7n \u00e1p t\u1ee9c th\u1eddi. Trong b\u1ed1i c\u1ea3nh s\u00f3ng h\u00ecnh sin AC thu\u1ea7n t\u00fay, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 ngu\u1ed3n DC t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ea1o ra hi\u1ec7u \u1ee9ng s\u01b0\u1edfi \u1ea5m t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. M\u1eb7c d\u00f9 c\u00f3 \u0111\u1ecbnh ngh\u0129a ph\u1ee9c t\u1ea1p nh\u01b0ng n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong k\u1ef9 thu\u1eadt \u0111i\u1ec7n, cung c\u1ea5p ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh gi\u00e1 tr\u1ecb hi\u1ec7u d\u1ee5ng c\u1ee7a \u0111i\u1ec7n \u00e1p ho\u1eb7c d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u, th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng V AC.<\/p>\n<p><strong>Giai \u0111o\u1ea1n:<\/strong> N\u00f3 \u0111\u1ea1i di\u1ec7n cho s\u1ef1 kh\u00e1c bi\u1ec7t g\u00f3c gi\u1eefa hai s\u00f3ng. Chu k\u1ef3 ho\u00e0n ch\u1ec9nh c\u1ee7a s\u00f3ng h\u00ecnh sin \u0111\u01b0\u1ee3c chia th\u00e0nh 360\u00b0, b\u1eaft \u0111\u1ea7u t\u1eeb 0\u00b0, \u0111\u1ea1t c\u1ef1c \u0111\u1ea1i \u1edf 90\u00b0 (\u0111\u1ec9nh d\u01b0\u01a1ng) v\u00e0 270\u00b0 (\u0111\u1ec9nh \u00e2m) v\u00e0 giao \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u hai l\u1ea7n \u1edf 180\u00b0 v\u00e0 360\u00b0.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"DC_Power\"><\/span>Ngu\u1ed3n DC<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>DC l\u00e0 m\u1ed9t d\u1ea1ng \u0111i\u1ec7n \u0111\u00e1ng tin c\u1eady \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u v\u00e0 \u0111i\u1ec7n \u00e1p \u1ed5n \u0111\u1ecbnh. Ng\u01b0\u1ee3c l\u1ea1i v\u1edbi AC, DC c\u00f3 \u0111\u01b0\u1eddng \u0111i m\u1ed9t chi\u1ec1u cho c\u00e1c electron. \u0110\u01b0\u1ee3c t\u1ea1o ra t\u1eeb c\u00e1c ngu\u1ed3n nh\u01b0 pin nhi\u00ean li\u1ec7u, t\u1ea5m pin m\u1eb7t tr\u1eddi, pin v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n, n\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho nhi\u1ec1u thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n li\u00ean t\u1ee5c.<\/p>\n<p>Ngo\u00e0i ra, DC cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng s\u1ea1ch h\u01a1n ngu\u1ed3n AC, khi\u1ebfn n\u00f3 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng khi c\u1ea5p ngu\u1ed3n cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n nh\u1ea1y c\u1ea3m.<\/p>\n<p>Th\u1eadt kh\u00f4ng may, lo\u1ea1i \u0111i\u1ec7n n\u00e0y ch\u1ec9 b\u1ecb gi\u1edbi h\u1ea1n trong kho\u1ea3ng c\u00e1ch ng\u1eafn n\u00ean vi\u1ec7c s\u1eed d\u1ee5ng n\u00f3 trong l\u01b0\u1edbi \u0111i\u1ec7n c\u00f3 th\u1ec3 kh\u00f3 kh\u0103n, th\u1eadm ch\u00ed l\u00e0 kh\u00f4ng th\u1ec3. Tuy nhi\u00ean, DC v\u1eabn l\u00e0 m\u1ed9t trong nh\u1eefng l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u khi cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n<p>Chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n ch\u00ednh t\u1eeb ngu\u1ed3n AC sang DC l\u00e0 th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong vi\u1ec7c cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i c\u1ee7a ch\u00fang ta. Qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 t\u1eeb cu\u1ed1i th\u1ebf k\u1ef7 19 v\u00e0 \u0111\u00e3 ph\u00e1t tri\u1ec3n m\u1ed9t c\u00e1ch ph\u1ee9c t\u1ea1p k\u1ec3 t\u1eeb \u0111\u00f3.<\/p>\n<p>Ngu\u1ed3n \u0111i\u1ec7n AC-DC c\u1ea7n thi\u1ebft cho c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 m\u00e1y t\u00ednh, \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh b\u1ea3ng, v.v. \u2013 lo\u1ea1i ngu\u1ed3n \u0111i\u1ec7n n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u1ee5 th\u1ec3 \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0ng lu\u00f4n c\u00f3 c\u00e1c y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"AC_Power_vs_DC_Power_Comarison\"><\/span>So s\u00e1nh ngu\u1ed3n AC v\u00e0 ngu\u1ed3n DC<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table width=\"100%\">\n<tbody>\n<tr>\n<td width=\"20%\"><strong>Ki\u1ec3u<\/strong><\/td>\n<td width=\"40%\"><strong>Ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u<\/strong><\/td>\n<td width=\"40%\"><strong>Ngu\u1ed3n DC<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"20%\"><strong><b>S\u1ef1 \u0111\u1ecbnh ngh\u0129a<\/b><\/strong><\/td>\n<td width=\"40%\">Ngu\u1ed3n \u0111i\u1ec7n ch\u00ednh l\u00e0 d\u1ea1ng n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u01b0\u1ee3c cung c\u1ea5p cho gia \u0111\u00ecnh v\u00e0 doanh nghi\u1ec7p t\u1eeb l\u01b0\u1edbi \u0111i\u1ec7n.<\/td>\n<td width=\"40%\">D\u1ea1ng n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n thay th\u1ebf th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/td>\n<\/tr>\n<tr>\n<td width=\"20%\"><strong>D\u00f2ng \u0111i\u1ec7n<\/strong><\/td>\n<td width=\"40%\">D\u1ea1ng s\u00f3ng<\/td>\n<td width=\"40%\">tuy\u1ebfn t\u00ednh<\/td>\n<\/tr>\n<tr>\n<td width=\"20%\"><strong>L\u1ee3i th\u1ebf<\/strong><\/td>\n<td width=\"40%\">Ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n hi\u1ec7u qu\u1ea3 \u0111\u1ec3 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n \u1edf kho\u1ea3ng c\u00e1ch xa. H\u1ec7 th\u1ed1ng l\u01b0\u1edbi \u0111i\u1ec7n xoay chi\u1ec1u, cho ph\u00e9p k\u1ebft n\u1ed1i gi\u1eefa nhi\u1ec1u ngu\u1ed3n \u0111i\u1ec7n v\u00e0 ng\u01b0\u1eddi d\u00f9ng, l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n ph\u1ed1i ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u ch\u00ednh.<\/td>\n<td width=\"40%\">M\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady v\u00e0 nh\u1ea5t qu\u00e1n \u0111\u1ec3 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n, m\u1eb7c d\u00f9 \u0111\u1ed5i l\u1ea1i l\u00e0 n\u00f3 kh\u00f4ng \u0111i xa \u0111\u01b0\u1ee3c.<\/td>\n<\/tr>\n<tr>\n<td width=\"20%\"><strong>\u1ee8ng d\u1ee5ng<\/strong><\/td>\n<td width=\"40%\">Cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed \u1edf nh\u00e0 ho\u1eb7c n\u01a1i l\u00e0m vi\u1ec7c.<\/td>\n<td width=\"40%\">Pin, n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi v\u00e0 pin nhi\u00ean li\u1ec7u, v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"What_is_ACDC_Power_Supply\"><\/span>Ngu\u1ed3n \u0111i\u1ec7n AC\/DC l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u1ed9 ngu\u1ed3n AC\/DC r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi nhi\u1ec1u lo\u1ea1i thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y t\u00ednh, \u0111\u00e8n, \u0111\u1ed9ng c\u01a1, m\u00e1y t\u00ednh x\u00e1ch tay v\u00e0 TV.<\/p>\n<p>C\u00f3 hai thi\u1ebft k\u1ebf ch\u00ednh cho ngu\u1ed3n \u0111i\u1ec7n AC\/DC: ngu\u1ed3n \u0111i\u1ec7n tuy\u1ebfn t\u00ednh v\u00e0 ngu\u1ed3n \u0111i\u1ec7n chuy\u1ec3n m\u1ea1ch. C\u00f3 th\u1ec3 kh\u00f3 \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh \u0111\u00e2u l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t.<\/p>\n<table width=\"100%\">\n<tbody>\n<tr>\n<td width=\"20%\"><strong>Ki\u1ec3u<\/strong><\/td>\n<td width=\"80%\"><strong>Ngu\u1ed3n \u0111i\u1ec7n AC-DC<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"20%\"><strong>S\u1ef1 \u0111\u1ecbnh ngh\u0129a<\/strong><\/td>\n<td width=\"80%\">M\u1ed9t thi\u1ebft b\u1ecb l\u1ea5y \u0111i\u1ec7n xoay chi\u1ec1u t\u1eeb ngu\u1ed3n \u0111\u1ea7u v\u00e0o v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh \u0111i\u1ec7n m\u1ed9t chi\u1ec1u. K\u1ef9 thu\u1eadt n\u00e0y gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t \u0111\u1ea7u ra v\u00e0 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c nhau.<\/td>\n<\/tr>\n<tr>\n<td width=\"20%\"><strong><b>D\u00f2ng \u0111i\u1ec7n<\/b><\/strong><\/td>\n<td width=\"80%\">T\u1eeb d\u1ea1ng s\u00f3ng \u0111\u1ebfn tuy\u1ebfn t\u00ednh<\/td>\n<\/tr>\n<tr>\n<td width=\"20%\"><strong>L\u1ee3i th\u1ebf<\/strong><\/td>\n<td width=\"80%\">C\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o cung c\u1ea5p \u0111i\u1ec7n DC \u1ed5n \u0111\u1ecbnh v\u00e0 nh\u1ea5t qu\u00e1n cho c\u00e1c thi\u1ebft b\u1ecb. Ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u1ee9c \u0111i\u1ec7n \u00e1p theo y\u00eau c\u1ea7u nh\u1eb1m \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 m\u1ecdi l\u00fac.<\/td>\n<\/tr>\n<tr>\n<td width=\"20%\"><strong>\u1ee8ng d\u1ee5ng<\/strong><\/td>\n<td width=\"80%\">M\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a nhi\u1ec1u thi\u1ebft b\u1ecb h\u00e0ng ng\u00e0y, t\u1eeb \u0111\u1ea7u DVD \u0111\u1ebfn thi\u1ebft b\u1ecb y t\u1ebf, v\u00ec ch\u00fang cung c\u1ea5p d\u00f2ng \u0111i\u1ec7n c\u1ea7n thi\u1ebft \u0111\u1ec3 v\u1eadn h\u00e0nh ch\u00fang.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Linear_ACDC_Power_Supply\"><\/span>Ngu\u1ed3n \u0111i\u1ec7n AC\/DC tuy\u1ebfn t\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>B\u1ed9 ngu\u1ed3n AC\/DC tuy\u1ebfn t\u00ednh c\u00f3 thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n. \u0110\u1ec3 s\u1eed d\u1ee5ng \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC), m\u1ed9t m\u00e1y bi\u1ebfn \u00e1p \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o \u0111\u1ec3 gi\u1ea3m n\u00f3 xu\u1ed1ng gi\u00e1 tr\u1ecb ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<p>\u0110i\u1ec7n \u00e1p xoay chi\u1ec1u gi\u1ea3m n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c ch\u1ec9nh l\u01b0u v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh \u0111i\u1ec7n \u00e1p d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC) \u0111\u1ec3 c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng d\u1ea1ng s\u00f3ng t\u1ed1t h\u01a1n; l\u1ecdc \u0111i\u1ec7n \u00e1p DC sau.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-4873\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2023\/03\/Linear-ACDC-Power-Supply.jpg?quality=85&strip=all\" alt=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n Ti\u00eau \u0111\u1ec1 v\u1ec1 ngu\u1ed3n \u0111i\u1ec7n AC\/DC=\" width=\"1338\" height=\"222\" how to better understand><\/p>\n<p>B\u1ed9 ngu\u1ed3n AC\/DC tuy\u1ebfn t\u00ednh truy\u1ec1n th\u1ed1ng kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng do y\u00eau c\u1ea7u t\u00edch h\u1ee3p hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3. K\u00edch th\u01b0\u1edbc v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a m\u00e1y bi\u1ebfn \u00e1p c\u00f3 th\u1ec3 kh\u00e1 quan tr\u1ecdng v\u00ec \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o ph\u1ea3i \u0111\u01b0\u1ee3c thay \u0111\u1ed5i t\u1ea1i \u0111i\u1ec3m \u0111\u1ea7u v\u00e0o.<\/p>\n<p>Ngo\u00e0i ra, l\u00f5i l\u1edbn h\u01a1n c\u1ea7n thi\u1ebft \u0111\u1ec3 truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng \u1edf m\u1ee9c \u0111\u1ed9 cao h\u01a1n. B\u1ed9 \u0111i\u1ec1u ch\u1ec9nh tuy\u1ebfn t\u00ednh cung c\u1ea5p \u0111\u1ea7u ra \u0111i\u1ec7n \u00e1p \u1ed5n \u0111\u1ecbnh nh\u01b0ng t\u1ea5t c\u1ea3 n\u0103ng l\u01b0\u1ee3ng d\u01b0 th\u1eeba s\u1ebd b\u1ecb l\u00e3ng ph\u00ed d\u01b0\u1edbi d\u1ea1ng nhi\u1ec7t.<\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 c\u00f4ng su\u1ea5t th\u1ea5p, \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1, nh\u01b0ng m\u1ee9c \u0111\u1ed9 truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng cao t\u1ea1o ra l\u01b0\u1ee3ng nhi\u1ec7t qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 c\u1ea7n \u0111\u1ebfn h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t ho\u1eb7c b\u1ed9 t\u1ea3n nhi\u1ec7t \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 c\u00e2n b\u1eb1ng v\u1edbi nhi\u1ec7t \u0111\u1ed9 \u0111ang t\u0103ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Switching_ACDC_Power_Supply\"><\/span>Chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n AC\/DC<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn MOSFET c\u00f4ng su\u1ea5t cao \u0111\u00e3 l\u00e0m cho vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n AC\/DC tr\u1edf th\u00e0nh m\u1ed9t gi\u1ea3i ph\u00e1p thay th\u1ebf h\u1ea5p d\u1eabn cho c\u00e1c thi\u1ebft k\u1ebf tuy\u1ebfn t\u00ednh ho\u1eb7c truy\u1ec1n th\u1ed1ng. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c b\u00f3ng b\u00e1n d\u1eabn n\u00e0y, c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o ra hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 ch\u1ec9 ti\u00eau hao n\u0103ng l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-6237\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2023\/03\/Switched-Mode-AC-DC-Power-Supply-Block-Diagram.png?quality=85&strip=all\" alt=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n Ti\u00eau \u0111\u1ec1 v\u1ec1 ngu\u1ed3n \u0111i\u1ec7n AC\/DC=\" width=\"1213\" height=\"182\" how to better understand><\/p>\n<p>K\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng l\u00e0 m\u1ed9t ngu\u1ed3n \u0111i\u1ec7n AC\/DC \u1edf ch\u1ebf \u0111\u1ed9 chuy\u1ec3n m\u1ea1ch, d\u1ef1a v\u00e0o \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1ee3c ch\u1ec9nh l\u01b0u v\u00e0 l\u1ecdc \u1edf \u0111\u1ea7u v\u00e0o, sau \u0111\u00f3 d\u00f9ng m\u1ed9t b\u1ed9 ng\u1eaft \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i \u0111i\u1ec7n \u00e1p n\u00e0y th\u00e0nh chu\u1ed7i xung t\u1ea7n s\u1ed1 cao.<\/p>\n<p>Ph\u01b0\u01a1ng ph\u00e1p thi\u1ebft k\u1ebf m\u1edbi n\u00e0y l\u00e0 c\u00f4ng c\u1ee5 gi\u00fap gi\u1ea3m k\u00edch th\u01b0\u1edbc m\u00e1y bi\u1ebfn \u00e1p v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p cho b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n AC\/DC.<\/p>\n<p><a href=\"https:\/\/www.wehopower.com\/vi\/product_category\/enclosed-switching-power-supply\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4875 size-full\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2023\/03\/Switching-DC-Power-Supply.jpg?quality=85&strip=all\" alt=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n Ti\u00eau \u0111\u1ec1 v\u1ec1 ngu\u1ed3n \u0111i\u1ec7n AC\/DC=\" width=\"600\" height=\"354\" how to better understand><\/a><\/p>\n<p>Sau khi \u0111i qua b\u1ed9 ch\u1ec9nh l\u01b0u v\u00e0 b\u1ed9 l\u1ecdc, s\u00f3ng \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i tr\u1edf l\u1ea1i th\u00e0nh d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC) v\u00e0 kh\u00f4ng c\u00f2n ph\u1ea7n d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC).<\/p>\n<p>Do kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n \u1edf t\u1ea7n s\u1ed1 cao h\u01a1n m\u00e0 kh\u00f4ng b\u1ecb b\u00e3o h\u00f2a, m\u00e1y bi\u1ebfn \u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho ngu\u1ed3n \u0111i\u1ec7n AC\/DC chuy\u1ec3n m\u1ea1ch c\u00f3 th\u1ec3 nh\u1ecf h\u01a1n m\u00e1y bi\u1ebfn \u00e1p c\u1ea7n thi\u1ebft cho phi\u00ean b\u1ea3n tuy\u1ebfn t\u00ednh. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p chi\u1ebfm \u00edt kh\u00f4ng gian h\u01a1n trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i trong khi v\u1eabn \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c \u0111i\u1ec7n \u00e1p mong mu\u1ed1n.<\/p>\n<p>B\u1ea3ng 1 t\u00f3m t\u1eaft s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ngu\u1ed3n \u0111i\u1ec7n AC\/DC chuy\u1ec3n m\u1ea1ch v\u00e0 tuy\u1ebfn t\u00ednh<\/p>\n<table style=\"border-collapse: collapse; width: 94.9964%; height: 480px;\">\n<tbody>\n<tr style=\"height: 30px;\">\n<td style=\"width: 12.0135%; height: 30px;\"><\/td>\n<td style=\"width: 41.6244%; height: 30px;\"><strong>Ngu\u1ed3n \u0111i\u1ec7n AC\/DC tuy\u1ebfn t\u00ednh<\/strong><\/td>\n<td style=\"width: 41.2461%; height: 30px;\"><strong>Chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n AC\/DC<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 60px;\">\n<td style=\"width: 12.0135%; height: 60px;\">K\u00edch th\u01b0\u1edbc v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng<\/td>\n<td style=\"width: 41.6244%; height: 60px;\">M\u00e1y bi\u1ebfn \u00e1p l\u1edbn l\u00e0 c\u1ea7n thi\u1ebft, t\u0103ng th\u00eam k\u00edch th\u01b0\u1edbc v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3.<\/td>\n<td style=\"width: 41.2461%; height: 60px;\">T\u1ea7n s\u1ed1 cao h\u01a1n cho ph\u00e9p s\u1eed d\u1ee5ng m\u00e1y bi\u1ebfn \u00e1p nh\u1ecf h\u01a1n nhi\u1ec1u n\u1ebfu c\u1ea7n.<\/td>\n<\/tr>\n<tr style=\"height: 120px;\">\n<td style=\"width: 12.0135%; height: 120px;\">Hi\u1ec7u qu\u1ea3<\/td>\n<td style=\"width: 41.6244%; height: 120px;\">Trong tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng c\u00f3 quy \u0111\u1ecbnh, nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra t\u1ed5n th\u1ea5t hi\u1ec7u su\u1ea5t l\u00e0 t\u1ed5n th\u1ea5t ph\u00e1t sinh trong m\u00e1y bi\u1ebfn \u00e1p. Tuy nhi\u00ean, trong c\u00e1c k\u1ecbch b\u1ea3n \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd, t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng su\u1ea5t cao tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 quan tr\u1ecdng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3.<\/td>\n<td style=\"width: 41.2461%; height: 120px;\">C\u00e1c b\u00f3ng b\u00e1n d\u1eabn g\u00e2y ra t\u1ed5n hao chuy\u1ec3n m\u1ea1ch nh\u1ecf v\u00ec ch\u00fang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 nh\u1eefng \u0111i\u1ec7n tr\u1edf nh\u1ecf. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng cao hi\u1ec7u qu\u1ea3.<\/td>\n<\/tr>\n<tr style=\"height: 150px;\">\n<td style=\"width: 12.0135%; height: 150px;\">Ti\u1ebfng \u1ed3n<\/td>\n<td style=\"width: 41.6244%; height: 150px;\">Trong khi c\u00e1c b\u1ed9 ngu\u1ed3n kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t c\u00f3 th\u1ec3 g\u00e2y ra ti\u1ebfng \u1ed3n \u0111\u00e1ng ch\u00fa \u00fd do g\u1ee3n s\u00f3ng \u0111i\u1ec7n \u00e1p, th\u00ec c\u00e1c b\u1ed9 ngu\u1ed3n AC\/DC tuy\u1ebfn t\u00ednh \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh l\u1ea1i c\u00f3 m\u1ee9c \u0111\u1ed9 \u1ed3n \u0111\u1eb7c bi\u1ec7t th\u1ea5p. Thu\u1ed9c t\u00ednh n\u00e0y l\u00e0m cho ch\u00fang \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng trong c\u1ea3m bi\u1ebfn y t\u1ebf.<\/td>\n<td style=\"width: 41.2461%; height: 150px;\">S\u1ef1 chuy\u1ec3n \u0111\u1ed5i nhanh ch\u00f3ng c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn c\u00f3 th\u1ec3 g\u00e2y nhi\u1ec5u v\u00e0o m\u1ea1ch. Tuy nhi\u00ean, ti\u1ebfng \u1ed3n n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ecdc ra m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 ho\u1eb7c c\u00e1ch kh\u00e1c, t\u1ea7n s\u1ed1 chuy\u1ec3n m\u1ea1ch c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c n\u00e2ng l\u00ean \u0111\u1ebfn m\u1ee9c v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n th\u00ednh gi\u00e1c c\u1ee7a con ng\u01b0\u1eddi, khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u00e2m thanh.<\/td>\n<\/tr>\n<tr style=\"height: 120px;\">\n<td style=\"width: 12.0135%; height: 120px;\">\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/td>\n<td style=\"width: 41.6244%; height: 120px;\">B\u1ed9 ngu\u1ed3n AC\/DC tuy\u1ebfn t\u00ednh c\u00f3 xu h\u01b0\u1edbng c\u00f3 \u00edt th\u00e0nh ph\u1ea7n h\u01a1n v\u00e0 m\u1ea1ch \u0111\u01a1n gi\u1ea3n h\u01a1n so v\u1edbi b\u1ed9 ngu\u1ed3n AC\/DC chuy\u1ec3n m\u1ea1ch.<\/td>\n<td style=\"width: 41.2461%; height: 120px;\">Vi\u1ec7c t\u1ea1o ra ti\u1ebfng \u1ed3n t\u1eeb m\u00e1y bi\u1ebfn \u00e1p \u0111\u00f2i h\u1ecfi ph\u1ea3i k\u1ebft h\u1ee3p c\u00e1c b\u1ed9 l\u1ecdc ph\u1ee9c t\u1ea1p v\u00e0 r\u1ed9ng r\u00e3i, c\u00f9ng v\u1edbi m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n v\u00e0 \u0111i\u1ec1u ch\u1ec9nh cho b\u1ed9 chuy\u1ec3n \u0111\u1ed5i.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Single-Phase_vs_Three-Phase_Power_Supplies\"><\/span>Ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha so v\u1edbi ngu\u1ed3n \u0111i\u1ec7n ba pha<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ngu\u1ed3n \u0111i\u1ec7n xoay chi\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh h\u1ec7 th\u1ed1ng m\u1ed9t pha ho\u1eb7c ba pha:<\/p>\n<p>Ngu\u1ed3n \u0111i\u1ec7n ba pha bao g\u1ed3m ba d\u00e2y d\u1eabn (g\u1ecdi l\u00e0 \u0111\u01b0\u1eddng d\u00e2y), m\u1ed7i d\u00e2y mang d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC) c\u00f3 c\u00f9ng t\u1ea7n s\u1ed1 v\u00e0 bi\u00ean \u0111\u1ed9 \u0111i\u1ec7n \u00e1p. Tuy nhi\u00ean, c\u00e1c d\u00f2ng \u0111i\u1ec7n n\u00e0y l\u1ec7ch pha nhau 120\u00b0, hay m\u1ed9t ph\u1ea7n ba chu k\u1ef3 (xem H\u00ecnh b\u00ean d\u01b0\u1edbi). Nh\u1eefng h\u1ec7 th\u1ed1ng n\u00e0y t\u1ecf ra hi\u1ec7u qu\u1ea3 cao trong vi\u1ec7c truy\u1ec1n t\u1ea3i l\u01b0\u1ee3ng \u0111i\u1ec7n \u0111\u00e1ng k\u1ec3, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean \u0111\u1ec3 v\u1eadn chuy\u1ec3n \u0111i\u1ec7n t\u1eeb c\u00e1c c\u01a1 s\u1edf ph\u00e1t \u0111i\u1ec7n \u0111\u1ebfn h\u1ed9 gia \u0111\u00ecnh v\u00e0 doanh nghi\u1ec7p tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n<p>M\u1eb7t kh\u00e1c, ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c \u01b0u ti\u00ean \u0111\u1ec3 cung c\u1ea5p \u0111i\u1ec7n cho t\u1eebng h\u1ed9 gia \u0111\u00ecnh ho\u1eb7c v\u0103n ph\u00f2ng, \u0111\u1ea3m b\u1ea3o ph\u00e2n b\u1ed5 t\u1ea3i \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean c\u00e1c \u0111\u01b0\u1eddng d\u00e2y. Trong c\u1ea5u h\u00ecnh n\u00e0y, d\u00f2ng \u0111i\u1ec7n ch\u1ea1y t\u1eeb \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n qua t\u1ea3i v\u00e0 quay tr\u1edf l\u1ea1i qua d\u00e2y trung t\u00ednh. M\u1eb7c d\u00f9 h\u1ec7 th\u1ed1ng m\u1ed9t pha th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t, ngo\u1ea1i tr\u1eeb c\u00e1c t\u00f2a nh\u00e0 c\u00f4ng nghi\u1ec7p ho\u1eb7c th\u01b0\u01a1ng m\u1ea1i l\u1edbn, ch\u00fang kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng cung c\u1ea5p c\u00f4ng su\u1ea5t cao cho t\u1ea3i v\u00e0 d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi ngu\u1ed3n \u0111i\u1ec7n h\u01a1n.nh\u1eefng th\u1ea5t b\u1ea1i. Tuy nhi\u00ean, ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha mang l\u1ea1i l\u1ee3i th\u1ebf v\u1ec1 c\u1ea5u h\u00ecnh thi\u1ebft b\u1ecb v\u00e0 m\u1ea1ng \u0111\u01a1n gi\u1ea3n h\u01a1n.<\/p>\n<p><span style=\"font-family: var(--heading--font-family); font-size: var(--heading--font-size-h2); font-weight: var(--heading--font-weight); letter-spacing: var(--heading--letter-spacing-h2); background-color: var(--global--color-background); color: var(--global--color-primary);\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6245\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2023\/03\/Three-Phase-Power-Supply-AC-Waveform.png?quality=85&strip=all\" alt=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n Ti\u00eau \u0111\u1ec1 v\u1ec1 ngu\u1ed3n \u0111i\u1ec7n AC\/DC=\" width=\"700\" height=\"378\" how to better understand><\/span><\/p>\n<p>Vi\u1ec7c truy\u1ec1n t\u1ea3i \u0111i\u1ec7n qua h\u1ec7 th\u1ed1ng ba pha c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng hai c\u1ea5u h\u00ecnh: delta (D) v\u00e0 wye (Y), c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi t\u01b0\u01a1ng \u1ee9ng l\u00e0 c\u1ea5u h\u00ecnh delta v\u00e0 sao. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u00e1c c\u1ea5u h\u00ecnh n\u00e0y n\u1eb1m \u1edf kh\u1ea3 n\u0103ng bao g\u1ed3m k\u1ebft n\u1ed1i trung t\u00ednh (tham kh\u1ea3o h\u00ecnh \u1ea3nh b\u00ean d\u01b0\u1edbi).<\/p>\n<p>K\u1ebft n\u1ed1i delta mang l\u1ea1i \u0111\u1ed9 tin c\u1eady cao h\u01a1n, trong khi k\u1ebft n\u1ed1i Y t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cung c\u1ea5p hai \u0111i\u1ec7n \u00e1p ri\u00eang bi\u1ec7t: \u0111i\u1ec7n \u00e1p pha (\u0111i\u1ec7n \u00e1p m\u1ed9t pha cung c\u1ea5p cho gia \u0111\u00ecnh) v\u00e0 \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1eddng d\u00e2y (\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea5p ngu\u1ed3n cho c\u00e1c t\u1ea3i l\u1edbn h\u01a1n).<\/p>\n<p>Trong c\u1ea5u h\u00ecnh Y, m\u1ed1i quan h\u1ec7 gi\u1eefa \u0111i\u1ec7n \u00e1p pha (ho\u1eb7c d\u00f2ng \u0111i\u1ec7n pha) v\u00e0 \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1eddng d\u00e2y (ho\u1eb7c d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1eddng d\u00e2y) d\u1eabn \u0111\u1ebfn bi\u00ean \u0111\u1ed9 \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1eddng d\u00e2y (ho\u1eb7c d\u00f2ng \u0111i\u1ec7n) l\u1edbn h\u01a1n ba l\u1ea7n so v\u1edbi bi\u00ean \u0111\u1ed9 pha.<\/p>\n<p>\u0110\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i ti\u00eau chu\u1ea9n \u0111\u00e1p \u1ee9ng c\u1ea3 y\u00eau c\u1ea7u ba pha v\u00e0 m\u1ed9t pha, h\u1ea7u h\u1ebft c\u00e1c m\u1ea1ng ph\u00e2n ph\u1ed1i \u0111\u1ec1u k\u1ebft h\u1ee3p ba d\u00e2y v\u00e0 m\u1ed9t d\u00e2y trung t\u00ednh. C\u1ea5u h\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh linh ho\u1ea1t cho c\u1ea3 m\u00e1y m\u00f3c gia d\u1ee5ng v\u00e0 c\u00f4ng nghi\u1ec7p khi s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n. Do \u0111\u00f3, c\u1ea5u h\u00ecnh Y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n ph\u1ed1i \u0111i\u1ec7n, trong khi c\u1ea5u h\u00ecnh Delta \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh trong vi\u1ec7c c\u1ea5p ngu\u1ed3n cho c\u00e1c t\u1ea3i ba pha, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n l\u1edbn.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6251\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2023\/03\/Y-and-Delta-Three-Phase-Configurations.png?quality=85&strip=all\" alt=\"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n Ti\u00eau \u0111\u1ec1 v\u1ec1 ngu\u1ed3n \u0111i\u1ec7n AC\/DC=\" width=\"700\" height=\"344\" how to better understand><\/p>\n<p>\u0110i\u1ec7n \u00e1p do l\u01b0\u1edbi \u0111i\u1ec7n cung c\u1ea5p cho ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t pha t\u1edbi ng\u01b0\u1eddi ti\u00eau d\u00f9ng thay \u0111\u1ed5i t\u00f9y theo v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd. Do \u0111\u00f3, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i x\u00e1c minh d\u1ea3i \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n tr\u01b0\u1edbc khi mua ho\u1eb7c s\u1eed d\u1ee5ng. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng ngu\u1ed3n \u0111i\u1ec7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru theo c\u00e1c th\u00f4ng s\u1ed1 c\u1ee7a l\u01b0\u1edbi \u0111i\u1ec7n qu\u1ed1c gia b\u1ea1n. Kh\u00f4ng l\u00e0m nh\u01b0 v\u1eady c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng ti\u1ec1m \u1ea9n cho ch\u00ednh ngu\u1ed3n \u0111i\u1ec7n ho\u1eb7c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi n\u00f3.<\/p>\n<p><span style=\"font-family: var(--heading--font-family); font-size: var(--heading--font-size-h2); font-weight: var(--heading--font-weight); letter-spacing: var(--heading--letter-spacing-h2); background-color: var(--global--color-background); color: var(--global--color-primary);\">B\u1ed9 ngu\u1ed3n AC-DC ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/p>\n<p>C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ng\u00e0y nay d\u1ef1a v\u00e0o ngu\u1ed3n \u0111i\u1ec7n AC-DC. T\u1eeb b\u1ed9 chuy\u1ec3n \u0111\u1ed5i b\u00ean ngo\u00e0i c\u1ee7a m\u00e1y t\u00ednh x\u00e1ch tay \u0111\u1ebfn \u0111\u1ea7u DVD v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf, nh\u1eefng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i n\u00e0y c\u00f3 nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau. C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n AC-DC\u2014m\u00e1y bi\u1ebfn \u00e1p, b\u1ed9 ch\u1ec9nh l\u01b0u v\u00e0 b\u1ed9 l\u1ecdc\u2014t\u1ea5t c\u1ea3 \u0111\u1ec1u ph\u1ed1i h\u1ee3p v\u1edbi nhau \u0111\u1ec3 h\u1ed7 tr\u1ee3 vi\u1ec7c cung c\u1ea5p \u0111i\u1ec7n DC m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady.<\/p>\n<p>B\u1ed9 ngu\u1ed3n AC-DC ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng b\u1ed9 ch\u1ec9nh l\u01b0u \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i AC th\u00e0nh DC. B\u1ed9 ch\u1ec9nh l\u01b0u l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 ch\u1ee9a m\u1ed9t b\u1ed9 \u0111i\u1ed1t. \u0110i\u1ed1t l\u00e0 thi\u1ebft b\u1ecb b\u00e1n d\u1eabn cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ec9 ch\u1ea1y theo m\u1ed9t h\u01b0\u1edbng.<\/p>\n<p>B\u1ed9 ch\u1ec9nh l\u01b0u chuy\u1ec3n \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u th\u00e0nh DC b\u1eb1ng c\u00e1ch ch\u1ec9 cho ph\u00e9p ph\u1ea7n d\u01b0\u01a1ng c\u1ee7a d\u1ea1ng s\u00f3ng AC \u0111i qua trong khi ch\u1eb7n ph\u1ea7n \u00e2m.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn \u0111\u1ea7u ra DC d\u1ea1ng xung, th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m m\u1ecbn b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng t\u1ee5 \u0111i\u1ec7n \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p DC \u1ed5n \u0111\u1ecbnh h\u01a1n. \u0110i\u1ec7n \u00e1p DC sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ebfn m\u1ee9c mong mu\u1ed1n b\u1eb1ng m\u1ea1ch \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Applications_of_ACDC_Power_Supplies\"><\/span>\u1ee8ng d\u1ee5ng c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n AC\/DC<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u1ed9 ngu\u1ed3n AC\/DC chuy\u1ec3n m\u1ea1ch th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c v\u1eadt d\u1ee5ng gia \u0111\u00ecnh nh\u01b0 m\u00e1y t\u00ednh \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c \u0111i\u1ec7n \u00e1p v\u00e0 t\u1ea7n s\u1ed1 kh\u00e1c nhau. Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i d\u1ea3i \u0111i\u1ec7n \u00e1p th\u1ee7 c\u00f4ng c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft cho m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng nh\u1ea5t \u0111\u1ecbnh, nh\u01b0 b\u1ed9 s\u1ea1c \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, n\u01a1i y\u00eau c\u1ea7u cao v\u1ec1 hi\u1ec7u qu\u1ea3 chi ph\u00ed.<\/p>\n<p>B\u1ed9 ngu\u1ed3n tuy\u1ebfn t\u00ednh tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t nh\u01b0ng hi\u1ec7n nay b\u1ed9 chuy\u1ec3n \u0111\u1ed5i cu\u1ed9n c\u1ea3m chu\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i do hi\u1ec7u qu\u1ea3 cao h\u01a1n.<\/p>\n<p>C\u1ea5u tr\u00fac li\u00ean k\u1ebft Flyback \u0111ang tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn h\u01a1n khi c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n kh\u00f4ng t\u1ea3i th\u1ea5p v\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u1ea3m bi\u1ebfn ph\u00eda s\u01a1 c\u1ea5p c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m chi ph\u00ed linh ki\u1ec7n b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf b\u1ed9 gh\u00e9p quang kh\u1ecfi ph\u00eda th\u1ee9 c\u1ea5p.<\/p>\n<p>B\u1ed9 ngu\u1ed3n AC\/DC mang l\u1ea1i l\u1ee3i \u00edch to l\u1edbn v\u1ec1 hi\u1ec7u su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed cho nhi\u1ec1u \u1ee9ng d\u1ee5ng. C\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u1eafc ch\u1eafn n\u00e0y ph\u00e2n chia t\u1ea3i \u0111\u1ed3ng \u0111\u1ec1u cho c\u00e1c \u00f4 pin 24V trong khi cung c\u1ea5p \u0111i\u1ec7n \u00e1p DC\/DC \u1edf c\u00f4ng su\u1ea5t cao.<\/p>\n<p>Ch\u00fang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 \u201cm\u00e1y bi\u1ebfn \u00e1p \u0111i\u1ec7n t\u1eed\u201d cho t\u1ea3i \u0111i\u1ec7n n\u0103ng th\u1ea5p, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p l\u00fd t\u01b0\u1edfng cho \u0111\u1ed9i xe th\u01b0\u01a1ng m\u1ea1i, c\u01a1 s\u1edf c\u00f4ng nghi\u1ec7p v\u00e0 l\u1eafp \u0111\u1eb7t h\u1ec7 th\u1ed1ng chi\u1ebfu s\u00e1ng \u0111i\u1ec7n \u00e1p th\u1ea5p.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Challenges_in_AC-DC_Power_Supply_Design\"><\/span>Nh\u1eefng th\u00e1ch th\u1ee9c trong thi\u1ebft k\u1ebf b\u1ed9 ngu\u1ed3n AC-DC<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Thi\u1ebft k\u1ebf b\u1ed9 ngu\u1ed3n AC-DC theo truy\u1ec1n th\u1ed1ng t\u1eadp trung v\u00e0o vi\u1ec7c t\u1ed1i \u0111a h\u00f3a hi\u1ec7u qu\u1ea3 v\u00e0 gi\u1ea3m thi\u1ec3u chi ph\u00ed.<\/p>\n<p>Tuy nhi\u00ean, trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y \u0111\u00e3 c\u00f3 s\u1ef1 thay \u0111\u1ed5i theo h\u01b0\u1edbng thi\u1ebft k\u1ebf c\u00e1c b\u1ed9 ngu\u1ed3n c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf h\u01a1n v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 h\u01a1n.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y \u0111\u00e3 d\u1eabn \u0111\u1ebfn nh\u1eefng th\u00e1ch th\u1ee9c m\u1edbi cho c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf b\u1ed9 ngu\u1ed3n v\u00ec gi\u1edd \u0111\u00e2y h\u1ecd ph\u1ea3i c\u00e2n b\u1eb1ng nh\u1eefng nhu c\u1ea7u c\u1ea1nh tranh n\u00e0y.<\/p>\n<p>M\u1ed9t trong nh\u1eefng th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t m\u00e0 c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf b\u1ed9 ngu\u1ed3n ph\u1ea3i \u0111\u1ed1i m\u1eb7t l\u00e0 t\u00ecm c\u00e1ch gi\u1ea3m k\u00edch th\u01b0\u1edbc v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a b\u1ed9 ngu\u1ed3n m\u00e0 kh\u00f4ng ph\u1ea3i hy sinh qu\u00e1 nhi\u1ec1u v\u1ec1 hi\u1ec7u qu\u1ea3 ho\u1eb7c chi ph\u00ed. M\u1ed9t th\u00e1ch th\u1ee9c kh\u00e1c l\u00e0 thi\u1ebft k\u1ebf c\u00e1c b\u1ed9 ngu\u1ed3n c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i.<\/p>\n<p>Khi c\u00e1c thi\u1ebft b\u1ecb tr\u1edf n\u00ean m\u1ea1nh m\u1ebd h\u01a1n, ch\u00fang s\u1ebd c\u1ea7n nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n t\u1eeb b\u1ed9 c\u1ea5p ngu\u1ed3n. \u0110\u00e2y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t h\u00e0nh \u0111\u1ed9ng c\u00e2n b\u1eb1ng kh\u00f3 kh\u0103n \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf v\u00ec h\u1ecd c\u1ed1 g\u1eafng t\u00ecm ra s\u1ef1 c\u00e2n b\u1eb1ng ph\u00f9 h\u1ee3p gi\u1eefa c\u00f4ng su\u1ea5t \u0111\u1ea7u ra v\u00e0 hi\u1ec7u su\u1ea5t.<\/p>\n<p>Nh\u1eefng th\u00e1ch th\u1ee9c trong thi\u1ebft k\u1ebf b\u1ed9 ngu\u1ed3n AC-DC kh\u00f4ng ng\u1eebng ph\u00e1t tri\u1ec3n, nh\u01b0ng th\u00e1ch th\u1ee9c th\u01b0\u1eddng tr\u1ef1c duy nh\u1ea5t l\u00e0 duy tr\u00ec hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady cao. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e2n b\u1eb1ng s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i gi\u1eefa c\u00e1c y\u00eau c\u1ea7u v\u1ec1 k\u00edch th\u01b0\u1edbc, chi ph\u00ed, hi\u1ec7u su\u1ea5t v\u00e0 an to\u00e0n \u0111\u1ec3 cung c\u1ea5p m\u1ee9c c\u00f4ng su\u1ea5t c\u1ea7n thi\u1ebft trong m\u1ed9t thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn, ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 m\u1ea1nh m\u1ebd.<\/p>\n<p><strong>Nh\u1eefng th\u00e1ch th\u1ee9c k\u1ef9 thu\u1eadt kh\u00e1c trong thi\u1ebft k\u1ebf ngu\u1ed3n \u0111i\u1ec7n AC-DC bao g\u1ed3m:<\/strong><\/p>\n<p><strong>\u2666 Hi\u1ec7u ch\u1ec9nh h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t: <\/strong><br \/>\nThi\u1ebft k\u1ebf c\u00e1c b\u1ed9 ngu\u1ed3n tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n hi\u1ec7u ch\u1ec9nh h\u1ec7 s\u1ed1 c\u00f4ng su\u1ea5t \u0111\u1ec3 gi\u1ea3m m\u00e9o s\u00f3ng h\u00e0i v\u00e0 t\u0103ng hi\u1ec7u su\u1ea5t.<\/p>\n<p><strong>\u2666 Tu\u00e2n th\u1ee7 EMC v\u00e0 EMI: <\/strong><br \/>\n\u0110\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb v\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb \u0111\u1ec3 gi\u1ea3m ti\u1ebfng \u1ed3n v\u00e0 ch\u1ed1ng nhi\u1ec5u v\u1edbi c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c.<\/p>\n<p><strong>\u2666 Qu\u1ea3n l\u00fd nhi\u1ec7t:<\/strong><br \/>\nL\u1ef1a ch\u1ecdn c\u00e1c gi\u1ea3i ph\u00e1p l\u00e0m m\u00e1t ph\u00f9 h\u1ee3p nh\u01b0 t\u1ea3n nhi\u1ec7t ho\u1eb7c qu\u1ea1t \u0111\u1ec3 gi\u1eef cho c\u00e1c b\u1ed9 ph\u1eadn c\u1ea5p ngu\u1ed3n lu\u00f4n \u1edf trong gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh an to\u00e0n.<\/p>\n<p><strong>\u2666 \u0110i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p:<\/strong><br \/>\nDuy tr\u00ec \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra \u1ed5n \u0111\u1ecbnh b\u1ea5t ch\u1ea5p nh\u1eefng thay \u0111\u1ed5i v\u1ec1 \u0111i\u1ec7n \u00e1p \u0111\u1ea7u v\u00e0o, d\u00f2ng \u0111i\u1ec7n t\u1ea3i v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng kh\u00e1c.<\/p>\n<p><strong>\u2666 C\u00e1ch ly v\u00e0 an to\u00e0n:<\/strong><br \/>\nCung c\u1ea5p s\u1ef1 c\u00e1ch ly th\u00edch h\u1ee3p gi\u1eefa c\u00e1c m\u1ea1ch s\u01a1 c\u1ea5p v\u00e0 th\u1ee9 c\u1ea5p v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n nh\u01b0 UL, CSA v\u00e0 IEC.<\/p>\n<p><strong>\u2666 T\u1ed1i \u01b0u h\u00f3a chi ph\u00ed:<\/strong><br \/>\nThi\u1ebft k\u1ebf c\u00e1c b\u1ed9 ngu\u1ed3n s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 ph\u1eadn v\u00e0 quy tr\u00ecnh s\u1ea3n xu\u1ea5t ti\u1ebft ki\u1ec7m chi ph\u00ed nh\u1ea5t trong khi v\u1eabn duy tr\u00ec \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady cao.<\/p>\n<p>Nh\u00ecn chung, thi\u1ebft k\u1ebf b\u1ed9 ngu\u1ed3n AC-DC \u0111\u00f2i h\u1ecfi s\u1ef1 hi\u1ec3u bi\u1ebft th\u1ea5u \u0111\u00e1o v\u1ec1 c\u00e1c nguy\u00ean t\u1eafc k\u1ef9 thu\u1eadt \u0111i\u1ec7n, \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t v\u00e0 c\u00e1c y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng \u0111\u1ec3 \u0111\u01b0a ra gi\u1ea3i ph\u00e1p t\u1ed1t nh\u1ea5t c\u00f3 th\u1ec3.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Summary\"><\/span>B\u1ea3n t\u00f3m t\u1eaft<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n d\u1ef1a v\u00e0o ngu\u1ed3n \u0111i\u1ec7n AC\/DC \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u (AC) th\u00e0nh d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u \u1ed5n \u0111\u1ecbnh (DC). \u00a0Vi\u1ec7c t\u1ea1o ra m\u1ed9t ngu\u1ed3n cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c do nhu c\u1ea7u c\u1ee7a th\u1ecb tr\u01b0\u1eddng \u0111\u1ed1i v\u1edbi c\u00e1c thi\u1ebft k\u1ebf c\u00f4ng su\u1ea5t cao, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1c m\u1ee9c t\u1ea3i kh\u00e1c nhau.<\/p>\n<p>WEHO l\u00e0 c\u00f4ng ty d\u1eabn \u0111\u1ea7u to\u00e0n c\u1ea7u khi n\u00f3i \u0111\u1ebfn b\u1ed9 ngu\u1ed3n AC\/DC v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m b\u1ed9 ngu\u1ed3n kh\u00e1c, \u0111\u1ed3ng th\u1eddi \u0111\u00f3ng vai tr\u00f2 l\u00e0 nh\u00e0 cung c\u1ea5p OEM cho c\u00e1c doanh nghi\u1ec7p.<\/p>\n<p>C\u00e1c gi\u1ea3i ph\u00e1p c\u1ea5p ngu\u1ed3n AC\/DC c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c c\u00e1c c\u00f4ng ty v\u00e0 nh\u00e0 cung c\u1ea5p gi\u1ea3i ph\u00e1p tr\u00ean to\u00e0n c\u1ea7u s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y. M\u1ed7i s\u1ea3n ph\u1ea9m \u0111\u1ec1u c\u00f3 hi\u1ec7u su\u1ea5t c\u1ef1c cao, tu\u1ed5i th\u1ecd t\u1ed1i \u01b0u v\u00e0 \u0111\u1ed9 tin c\u1eady m\u1eabu m\u1ef1c.<\/p>","protected":false},"excerpt":{"rendered":"<p>WEHO l\u00e0 c\u00f4ng ty d\u1eabn \u0111\u1ea7u to\u00e0n c\u1ea7u khi n\u00f3i \u0111\u1ebfn b\u1ed9 ngu\u1ed3n AC\/DC v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m b\u1ed9 ngu\u1ed3n kh\u00e1c, \u0111\u1ed3ng th\u1eddi \u0111\u00f3ng vai tr\u00f2 l\u00e0 nh\u00e0 cung c\u1ea5p OEM cho c\u00e1c doanh nghi\u1ec7p.<\/p>","protected":false},"author":1,"featured_media":4875,"parent":0,"menu_order":339,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,148],"class_list":["post-4872","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-industry-news","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news\/4872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/comments?post=4872"}],"version-history":[{"count":0,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news\/4872\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/media\/4875"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/media?parent=4872"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/vi\/wp-json\/wp\/v2\/news_category?post=4872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}