{"id":3888,"date":"2025-09-24T11:12:00","date_gmt":"2025-09-24T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/what-is-an-inductor\/"},"modified":"2026-06-22T09:04:41","modified_gmt":"2026-06-22T09:04:41","slug":"what-is-an-inductor","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-an-inductor","title":{"rendered":"Cu\u1ed9n c\u1ea3m gi\u1ea3i th\u00edch: Ch\u1ee9c n\u0103ng, Lo\u1ea1i &amp; \u1ee8ng d\u1ee5ng trong \u0110i\u1ec7n t\u1eed"},"content":{"rendered":"<h2 class=\"wp-block-heading\">1\ufe0f\u20e3 Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t <strong>cu\u1ed9n c\u1ea3m<\/strong> l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n th\u1ee5 \u0111\u1ed9ng c\u01a1 b\u1ea3n trong c\u00e1c m\u1ea1ch \u0111i\u1ec7n t\u1eed, thi\u1ebft y\u1ebfu \u0111\u1ec3 qu\u1ea3n l\u00fd d\u00f2ng \u0111i\u1ec7n v\u00e0 l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng. D\u00f9 b\u1ea1n \u0111ang thi\u1ebft k\u1ebf ngu\u1ed3n cung c\u1ea5p \u0111i\u1ec7n, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17548-lan-transformer.htm\">b\u1ed9 l\u1ecdc<\/a>, hay c\u00e1c h\u1ec7 th\u1ed1ng x\u1eed l\u00fd t\u00edn hi\u1ec7u, vi\u1ec7c hi\u1ec3u v\u1ec1 cu\u1ed9n c\u1ea3m l\u00e0 r\u1ea5t quan tr\u1ecdng. H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111i s\u00e2u v\u00e0o \u0111\u1ecbnh ngh\u0129a, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u00e1c lo\u1ea1i v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a cu\u1ed9n c\u1ea3m trong \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2\ufe0f\u20e3 Cu\u1ed9n c\u1ea3m l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t cu\u1ed9n c\u1ea3m l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n \u0111i\u1ec7n t\u1eed th\u1ee5 \u0111\u1ed9ng hai \u0111\u1ea7u n\u1ed1i, l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng trong tr\u01b0\u1eddng t\u1eeb c\u1ee7a n\u00f3 khi d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua. Th\u00f4ng th\u01b0\u1eddng, n\u00f3 g\u1ed3m m\u1ed9t cu\u1ed9n d\u00e2y qu\u1ea5n quanh m\u1ed9t v\u1eadt li\u1ec7u l\u00f5i, c\u00f3 th\u1ec3 l\u00e0 kh\u00f4ng kh\u00ed, s\u1eaft ho\u1eb7c ferit. Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a cu\u1ed9n c\u1ea3m l\u00e0 ch\u1ed1ng l\u1ea1i s\u1ef1 thay \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean v\u00f4 c\u00f9ng qu\u00fd gi\u00e1 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng \u0111i\u1ec7n t\u1eed.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3\ufe0f\u20e3 Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a cu\u1ed9n c\u1ea3m<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua cu\u1ed9n d\u00e2y, n\u00f3 t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb xung quanh. Theo <strong>\u0110\u1ecbnh lu\u1eadt C\u1ea3m \u1ee9ng Faraday<\/strong>, b\u1ea5t k\u1ef3 s\u1ef1 thay \u0111\u1ed5i n\u00e0o trong d\u00f2ng \u0111i\u1ec7n s\u1ebd g\u00e2y ra m\u1ed9t \u0111i\u1ec7n \u00e1p (s\u1ee9c \u0111i\u1ec7n \u0111\u1ed9ng) ph\u1ea3n kh\u00e1ng l\u1ea1i s\u1ef1 thay \u0111\u1ed5i \u0111\u00f3. T\u00ednh ch\u1ea5t n\u00e0y cho ph\u00e9p cu\u1ed9n c\u1ea3m l\u00e0m ph\u1eb3ng c\u00e1c dao \u0111\u1ed9ng d\u00f2ng \u0111i\u1ec7n v\u00e0 l\u1ecdc t\u00edn hi\u1ec7u trong c\u00e1c m\u1ea1ch \u0111i\u1ec7n t\u1eed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed1i quan h\u1ec7 gi\u1eefa \u0111i\u1ec7n \u00e1p (V), \u0111\u1ed9 t\u1ef1 c\u1ea3m (L) v\u00e0 t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n (di\/dt) \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1edfi c\u00f4ng th\u1ee9c:<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"294\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f50ae73d94324a2fab9043b3285552ba-1024x294.webp\" alt=\"How Does an Inductor Work?\" class=\"wp-image-3885\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f50ae73d94324a2fab9043b3285552ba-1024x294.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f50ae73d94324a2fab9043b3285552ba-300x86.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f50ae73d94324a2fab9043b3285552ba-768x221.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f50ae73d94324a2fab9043b3285552ba-18x5.webp 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f50ae73d94324a2fab9043b3285552ba.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>V<\/strong> l\u00e0 \u0111i\u1ec7n \u00e1p c\u1ea3m \u1ee9ng,<\/p><\/li>\n\n\n\n<li><p><strong>L<\/strong> l\u00e0 \u0111\u1ed9 t\u1ef1 c\u1ea3m,<\/p><\/li>\n\n\n\n<li><p><strong>{di}\/{dt}<\/strong> l\u00e0 t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n.<\/p><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4\ufe0f\u20e3 C\u00e1c lo\u1ea1i cu\u1ed9n c\u1ea3m<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6135672996804df485fbdd67bd20de5f.webp\" alt=\"Types of Inductors\" class=\"wp-image-3886\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6135672996804df485fbdd67bd20de5f.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6135672996804df485fbdd67bd20de5f-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6135672996804df485fbdd67bd20de5f-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6135672996804df485fbdd67bd20de5f-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6135672996804df485fbdd67bd20de5f-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed9n c\u1ea3m t\u1ed3n t\u1ea1i d\u01b0\u1edbi nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, m\u1ed7i lo\u1ea1i ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Cu\u1ed9n c\u1ea3m l\u00f5i kh\u00f4ng kh\u00ed<\/strong>: S\u1eed d\u1ee5ng kh\u00f4ng kh\u00ed l\u00e0m v\u1eadt li\u1ec7u l\u00f5i, mang l\u1ea1i gi\u00e1 tr\u1ecb \u0111\u1ed9 t\u1ef1 c\u1ea3m th\u1ea5p v\u00e0 hi\u1ec7u su\u1ea5t cao \u1edf t\u1ea7n s\u1ed1 cao.<\/p><\/li>\n\n\n\n<li><p><strong>Cu\u1ed9n c\u1ea3m l\u00f5i s\u1eaft<\/strong>: S\u1eed d\u1ee5ng s\u1eaft l\u00e0m l\u00f5i, cung c\u1ea5p \u0111\u1ed9 t\u1ef1 c\u1ea3m cao h\u01a1n nh\u01b0ng t\u1ed5n hao l\u00f5i t\u0103ng l\u00ean \u1edf t\u1ea7n s\u1ed1 cao.<\/p><\/li>\n\n\n\n<li><p><strong>Cu\u1ed9n c\u1ea3m l\u00f5i ferit<\/strong>: S\u1eed d\u1ee5ng v\u1eadt li\u1ec7u ferit, r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng t\u1ea7n s\u1ed1 cao nh\u1edd t\u1ed5n hao l\u00f5i th\u1ea5p.<\/p><\/li>\n\n\n\n<li><p><strong>Cu\u1ed9n c\u1ea3m h\u00ecnh xuy\u1ebfn<\/strong>: C\u00f3 l\u00f5i h\u00ecnh b\u00e1nh r\u00e1n, gi\u1ea3m thi\u1ec3u nhi\u1ec5u \u0111i\u1ec7n t\u1eeb v\u00e0 mang l\u1ea1i thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn.<\/p><\/li>\n\n\n\n<li><p><strong>Cu\u1ed9n c\u1ea3m g\u1eafn b\u1ec1 m\u1eb7t<\/strong>: \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho quy tr\u00ecnh l\u1eafp r\u00e1p t\u1ef1 \u0111\u1ed9ng, nh\u1eefng cu\u1ed9n c\u1ea3m n\u00e0y nh\u1ecf g\u1ecdn v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c b\u1ea3ng m\u1ea1ch m\u1eadt \u0111\u1ed9 cao.<\/p><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5\ufe0f\u20e3 \u1ee8ng d\u1ee5ng c\u1ee7a cu\u1ed9n c\u1ea3m<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed9n c\u1ea3m \u0111\u00f3ng vai tr\u00f2 thi\u1ebft y\u1ebfu trong nhi\u1ec1u \u1ee9ng d\u1ee5ng \u0111i\u1ec7n t\u1eed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Ngu\u1ed3n cung c\u1ea5p \u0111i\u1ec7n<\/strong>: Cu\u1ed9n c\u1ea3m l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng v\u00e0 h\u1ed7 tr\u1ee3 chuy\u1ec3n \u0111\u1ed5i m\u1ee9c \u0111i\u1ec7n \u00e1p trong c\u00e1c m\u1ea1ch ngu\u1ed3n cung c\u1ea5p.<\/p><\/li>\n\n\n\n<li><p><strong>B\u1ed9 l\u1ecdc<\/strong>: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi t\u1ee5 \u0111i\u1ec7n \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c t\u1ea7n s\u1ed1 kh\u00f4ng mong mu\u1ed1n trong x\u1eed l\u00fd t\u00edn hi\u1ec7u.<\/p><\/li>\n\n\n\n<li><p><strong>Cu\u1ed9n ch\u1eb7n<\/strong>: L\u00e0 c\u00e1c cu\u1ed9n c\u1ea3m d\u00f9ng \u0111\u1ec3 ch\u1eb7n t\u00edn hi\u1ec7u xoay chi\u1ec1u t\u1ea7n s\u1ed1 cao trong khi cho ph\u00e9p d\u00f2ng m\u1ed9t chi\u1ec1u \u0111i qua, th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng tr\u00ean \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n.<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/store-17548-lan-transformer.htm\" target=\"_blank\" rel=\"\"><strong>M\u00e1y bi\u1ebfn \u00e1p<\/strong><\/a>: S\u1eed d\u1ee5ng hi\u1ec7n t\u01b0\u1ee3ng c\u1ea3m \u1ee9ng \u0111\u1ec3 truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n gi\u1eefa c\u00e1c m\u1ea1ch \u1edf c\u00e1c m\u1ee9c \u0111i\u1ec7n \u00e1p kh\u00e1c nhau.<\/p><\/li>\n\n\n\n<li><p><strong>M\u1ea1ch t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn<\/strong>: Cu\u1ed9n c\u1ea3m l\u00e0 th\u00e0nh ph\u1ea7n then ch\u1ed1t trong c\u00e1c m\u1ea1ch \u0111i\u1ec1u ch\u1ec9nh t\u1ea7n s\u1ed1 cho radio v\u00e0 ti vi.<\/p><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6\ufe0f\u20e3 K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 v\u1ec1 cu\u1ed9n c\u1ea3m l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai tham gia v\u00e0o thi\u1ebft k\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng \u0111i\u1ec7n t\u1eed. Kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng, l\u1ecdc t\u00edn hi\u1ec7u v\u00e0 qu\u1ea3n l\u00fd d\u00f2ng \u0111i\u1ec7n c\u1ee7a ch\u00fang khi\u1ebfn cu\u1ed9n c\u1ea3m tr\u1edf th\u00e0nh th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i. D\u00f9 b\u1ea1n \u0111ang l\u00e0m vi\u1ec7c v\u1edbi ngu\u1ed3n cung c\u1ea5p \u0111i\u1ec7n, thi\u1ebft b\u1ecb truy\u1ec1n th\u00f4ng hay thi\u1ebft b\u1ecb x\u1eed l\u00fd t\u00edn hi\u1ec7u, cu\u1ed9n c\u1ea3m \u0111\u1ec1u \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t nh\u1eb1m \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng m\u1ea1ch hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 cu\u1ed9n c\u1ea3m l\u00e0 g\u00ec, c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c m\u1ea1ch \u0111i\u1ec7n t\u1eed, c\u00e1c lo\u1ea1i cu\u1ed9n c\u1ea3m v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. T\u00ecm hi\u1ec3u v\u1ec1 th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu n\u00e0y trong \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"author":1,"featured_media":3887,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[23],"class_list":["post-3888","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-link-pp-lan-transformers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3888","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=3888"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3888\/revisions"}],"predecessor-version":[{"id":11368,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3888\/revisions\/11368"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3887"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}