{"id":6532,"date":"2025-09-25T11:12:00","date_gmt":"2025-09-25T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/what-is-signal-coupling-in-electronics\/"},"modified":"2026-06-22T06:44:25","modified_gmt":"2026-06-22T06:44:25","slug":"what-is-signal-coupling-in-electronics","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/what-is-signal-coupling-in-electronics","title":{"rendered":"\uc804\uc790\uacf5\ud559\uc5d0\uc11c\uc758 \uc2e0\ud638 \uacb0\ud569: \uc6d0\ub9ac, \uc720\ud615 \ubc0f \uc751\uc6a9 \ubd84\uc57c"},"content":{"rendered":"<h2 class=\"wp-block-heading\" >\ud83d\udd39 \uc11c\ub860<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud604\ub300 \uc804\uc790\uacf5\ud559\uc5d0\uc11c \ud68c\ub85c \uac04 \uc2e0\ud638\ub97c \ubd88\ud544\uc694\ud55c \uac04\uc12d \uc5c6\uc774 \uc804\ub2ec\ud558\ub294 \uac83\uc740 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc740 <strong>\uc2e0\ud638 \uacb0\ud569(signal coupling)<\/strong>, \uc774\ub77c\uace0 \ubd88\ub9ac\uba70, \uc815\ubcf4\ub97c \ud6a8\uc728\uc801\uc73c\ub85c \uc804\ub2ec\ud558\uba74\uc11c DC \ubc14\uc774\uc5b4\uc2a4 \ucda9\ub3cc\uc774\ub098 \uc811\uc9c0 \ubb38\uc81c\ub85c\ubd80\ud130 \ud68c\ub85c\ub97c \ubcf4\ud638\ud569\ub2c8\ub2e4. \uc624\ub514\uc624 \uc99d\ud3ed\uae30, PCB \ubc30\uce58 \ub610\ub294 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/what-is-ethernet-wired-networking-technology-explained\/\">\uc774\ub354\ub137 \ub124\ud2b8\uc6cc\ud0b9(Ethernet networking)<\/a>, \ub4f1 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc2e0\ud638 \uacb0\ud569\uc740 \ubaa8\ub4e0 \uc5d4\uc9c0\ub2c8\uc5b4\uac00 \uc774\ud574\ud574\uc57c \ud560 \uae30\ubcf8 \uac1c\ub150\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 \uc2e0\ud638 \uacb0\ud569\uc774\ub780?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc2e0\ud638 \uacb0\ud569(signal coupling)<\/strong> \uc740 \uad50\ub958(AC) \uc2e0\ud638\ub97c \ud558\ub098\uc758 \ud68c\ub85c\uc5d0\uc11c \ub2e4\ub978 \ud68c\ub85c\ub85c \uc804\uc1a1\ud558\ub418, \uc6d0\uce58 \uc54a\ub294 \uc9c1\ub958(DC)\ub97c \ucc28\ub2e8\ud558\uac70\ub098 \uaca9\ub9ac\ud558\ub294 \ubc29\ubc95\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc124\uacc4\uc790\ub294 \ubbfc\uac10\ud55c \ubd80\ud488\uc744 \uc190\uc0c1\uc2dc\ud0ac \uc218 \uc788\ub294 \uc804\uc555 \uc624\ud504\uc14b\uc744 \uc804\ub2ec\ud558\uc9c0 \uc54a\uace0\ub3c4 \uc2e0\ud638 \uc815\ubcf4\ub97c \uacf5\uc720\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\ubb34\uc5d0\uc11c \uc2e0\ud638 \uacb0\ud569\uc740 <strong>\uc2e0\ud638 \ubb34\uacb0\uc131<\/strong>, , <strong>\uc7a1\uc74c \uac04\uc12d(noise interference)<\/strong>, \ub97c \uc904\uc774\uace0, <strong>\ud68c\ub85c \uaca9\ub9ac(circuit isolation)<\/strong> \ub97c \ud1b5\uc2e0 \ubc0f \uc804\ub825 \uc2dc\uc2a4\ud15c\uc5d0 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 \uc2e0\ud638 \uacb0\ud569\uc758 \uc720\ud615<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a92558a34d8644fcaeeebe53f6407a10.webp\" alt=\"Signal Coupling\" class=\"wp-image-6530\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a92558a34d8644fcaeeebe53f6407a10.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a92558a34d8644fcaeeebe53f6407a10-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a92558a34d8644fcaeeebe53f6407a10-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a92558a34d8644fcaeeebe53f6407a10-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a92558a34d8644fcaeeebe53f6407a10-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >\ucee4\ud328\uc2dc\ud130 \uacb0\ud569(Capacitive Coupling)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong><p>\uc815\uc758:<\/p><\/strong> \ub450 \ud68c\ub85c \uc0ac\uc774\uc758 \ub9e4\uac1c\uccb4\ub85c <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/what-is-a-capacitor\/\">\ucee4\ud328\uc2dc\ud130<\/a> \ucee4\ud328\uc2dc\ud130(capacitor).<\/p><\/li><li><p><strong>\uc6d0\ub9ac:<\/strong> \ucee4\ud328\uc2dc\ud130\ub294 DC\ub294 \ucc28\ub2e8\ud558\uace0 AC\ub294 \ud1b5\uacfc\uc2dc\ud0a4\ubbc0\ub85c, DC \ubc14\uc774\uc5b4\uc2a4\ub97c \uc81c\uac70\ud558\uba74\uc11c \uc2e0\ud638 \uc804\ub2ec\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p><\/li><li><p><strong>\uc751\uc6a9 \ubd84\uc57c:<\/strong><\/p><ul><li><p>\uc624\ub514\uc624 \uc99d\ud3ed\uae30\uc758 \uc785\ub825\/\ucd9c\ub825 \ub2e8\uacc4<\/p><\/li><li><p>\uc2e0\ud638 \ud544\ud130\ub9c1\uc744 \uc704\ud55c \ud1b5\uc2e0 \ud68c\ub85c<\/p><\/li><li><p>\uace0\uc8fc\ud30c(high-frequency) <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/what-is-pcb-printed-circuit-board\/\">PCB<\/a> \uc124\uacc4<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ucee4\ud328\uc2dc\ud130 \uacb0\ud569\uc740 \ub2e8\uc21c\ud558\uace0 \ube44\uc6a9 \ud6a8\uc728\uc801\uc774\uba70 \uc911\uc8fc\ud30c~\uace0\uc8fc\ud30c \uc2e0\ud638\uc5d0 \ub300\ud574 \ub9e4\uc6b0 \ud6a8\uacfc\uc801\uc774\ubbc0\ub85c \uac00\uc7a5 \ud754\ud788 \uc0ac\uc6a9\ub418\ub294 \uae30\ubc95\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud2b8\ub79c\uc2a4\ud3ec\uba38(\uc720\ub3c4) \uacb0\ud569(Transformer (Inductive) Coupling)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong><p>\uc815\uc758:<\/p><\/strong> \uc790\uae30\uc7a5\uc5d0 \uc758\ud55c \uc2e0\ud638 \uc804\ub2ec\uc744 \uc704\ud574 \ud2b8\ub79c\uc2a4\ud3ec\uba38 \ub610\ub294 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/what-is-an-inductor\/\">\ucf54\uc77c \uc18c\uc790<\/a> \uc778\ub355\ud130(inductor).<\/p><\/li><li><p><strong>\uc6d0\ub9ac:<\/strong> \ud2b8\ub79c\uc2a4\ud3ec\uba38\ub294 AC \uc2e0\ud638\ub97c \uc804\ub2ec\ud558\uba74\uc11c \ud68c\ub85c \uac04 \uac08\ubc14\ub2c8\uc801 \uaca9\ub9ac(galvanic isolation)\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub610\ud55c <strong>\uc804\uc555 \ubc0f \uc804\ub958 \ubcc0\ud658<\/strong>, \uc784\ud53c\ub358\uc2a4 \uc815\ud569(impedance matching).<\/p><\/li><li><p><strong>\uc751\uc6a9 \ubd84\uc57c:<\/strong><\/p><ul><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17548-lan-transformer.htm\">\uc774\ub354\ub137 LAN \ud2b8\ub79c\uc2a4\ud3ec\uba38<\/a><\/p><\/li><li><p>RF \ubc0f \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c<\/p><\/li><li><p>\uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58 \uaca9\ub9ac \ud68c\ub85c<\/p><\/li><\/ul><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud2b8\ub79c\uc2a4\ud3ec\uba38 \uacb0\ud569\uc740 \uc2e0\ud638 \ubb34\uacb0\uc2e4\uc131\uacfc \uaca9\ub9ac\uac00 \ubaa8\ub450 \uc911\uc694\ud55c \ub124\ud2b8\uc6cc\ud06c \ud558\ub4dc\uc6e8\uc5b4\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h3 class=\"wp-block-heading\" >\uc9c1\uc811 \uacb0\ud569(Direct Coupling, DC \uacb0\ud569)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong><p>\uc815\uc758:<\/p><\/strong> \ucee4\ud328\uc2dc\ud130\ub098 \ud2b8\ub79c\uc2a4\ud3ec\uba38 \uc5c6\uc774 \ub450 \ud68c\ub85c\ub97c \uc9c1\uc811 \uc5f0\uacb0\ud558\ub294 \ubc29\uc2dd.<\/p><\/li><li><p><strong>\uc7a5\uc810:<\/strong> AC\uc640 DC \uc131\ubd84 \ubaa8\ub450\ub97c \ud1b5\uacfc\uc2dc\ud0b5\ub2c8\ub2e4.<\/p><\/li><li><p><strong>\ud55c\uacc4:<\/strong> \uc804\uc555 \ubd88\uc77c\uce58 \ub610\ub294 DC \uc624\ud504\uc14b\uc73c\ub85c \uc778\ud574 \ud6c4\ub2e8 \ud68c\ub85c\uc5d0 \uc601\ud5a5\uc744 \uc904 \uc704\ud5d8\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p><\/li><li><p><strong>\uc751\uc6a9 \ubd84\uc57c:<\/strong> DC \ub808\ubca8\uc744 \ubc18\ub4dc\uc2dc \uc720\uc9c0\ud574\uc57c \ud558\ub294 \uc800\uc8fc\ud30c \uc99d\ud3ed\uae30 \ubc0f \ub514\uc9c0\ud138 \ub17c\ub9ac \ud68c\ub85c.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 \uc804\uc790\uacf5\ud559 \ubc0f \ub124\ud2b8\uc6cc\ud0b9\uc5d0\uc11c\uc758 \uc2e0\ud638 \uacb0\ud569<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e0\ud638 \uacb0\ud569\uc740 <strong>\ub370\uc774\ud130 \ud1b5\uc2e0, \uc624\ub514\uc624 \uc804\uc1a1, PCB \uc2e0\ud638 \ub77c\uc6b0\ud305<\/strong>. \uc5d0\uc11c \ud575\uc2ec\uc801\uc778 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \uace0\uc18d \ub124\ud2b8\uc6cc\ud0b9\uc5d0\uc11c\ub294, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17548-lan-transformer.htm\"><strong>LAN \ud2b8\ub79c\uc2a4\ud3ec\uba38<\/strong><\/a> \ud2b8\ub79c\uc2a4\ud3ec\uba38 \uacb0\ud569(transformer coupling) <strong>5kV\u20132kV <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/lan-transformer-isolation-voltage-explained\/\"><strong>\uaca9\ub9ac(isolation)<\/strong><\/a>, \ub97c \ud1b5\ud574 \uc774\ub354\ub137 \uc2e0\ud638\ub97c \uc804\ub2ec\ud558\uc5ec \uce69\uc14b\uc744 \uc11c\uc9c0(surge)\ub85c\ubd80\ud130 \ubcf4\ud638\ud558\uace0, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/esd-protection-link-pp-smart-factory-transceivers-rj45-cage\/\">\uc815\uc804\uae30 \ubc29\uc804<\/a>, \uc811\uc9c0 \uc804\uc704 \ucc28\uc774(ground potential differences)\ub85c\ubd80\ud130\ub3c4 \ubcf4\ud638\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP\ub294 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\"><strong>\ub0b4\uc7a5 \ub9c8\uadf8\ub124\ud2f1 \uae30\ub2a5\uc744 \uac16\ucd98 RJ45 \ucee4\ub125\ud130<\/strong><\/a>, \uace0\uc131\ub2a5 \uc2e0\ud638 \uacb0\ud569 \uc194\ub8e8\uc158(high-performance signal coupling solutions) <strong>\uc2e0\ub8b0\uc131 \ub192\uace0 \uace0\uc18d\uc758 \uc2e0\ud638 \uc804\uc1a1(reliable, high-speed signal transmission)<\/strong> \uc0b0\uc5c5, \uc790\ub3d9\ucc28, \ud1b5\uc2e0 \ubd84\uc57c \uc804\ubc18\uc5d0 \uac78\uccd0 \ubcf4\uc7a5\ud558\ub294 \uc120\ub3c4\uc801\uc778 \uc81c\uc870\uc5c5\uccb4\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 \uacb0\ub860<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e0\ud638 \uacb0\ud569\uc740 \ub2e8\uc21c\ud55c \uc774\ub860\uc801 \uac1c\ub150\uc744 \ub118\uc5b4\uc11c, \uc2e0\ud638\ub97c \uc548\uc804\ud558\uace0 \ud6a8\uacfc\uc801\uc73c\ub85c \uc804\ub2ec\ud558\uae30 \uc704\ud55c \uc2e4\uc6a9\uc801\uc778 \uacf5\ud559\uc801 \ud574\uacb0\ucc45\uc785\ub2c8\ub2e4. \ucee4\ud328\uc2dc\ud130 \uacb0\ud569\uc740 AC \uaca9\ub9ac\uc5d0 \uc774\uc0c1\uc801\uc774\uba70, \ud2b8\ub79c\uc2a4\ud3ec\uba38 \uacb0\ud569\uc740 \uaca9\ub9ac\uc640 \uc784\ud53c\ub358\uc2a4 \uc815\ud569\uc744 \ub3d9\uc2dc\uc5d0 \uc81c\uacf5\ud558\uace0, \uc9c1\uc811 \uacb0\ud569\uc740 DC \uc5f0\uc18d\uc131\uc774 \ud544\uc694\ud55c \ud2b9\uc218 \uc0ac\ub840\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c\uc5d0\uc11c <strong>\uc624\ub514\uc624 \uc804\uc790\uacf5\ud559(audio electronics)<\/strong> \uc5d0\uc11c <strong>\uace0\uc18d \uc774\ub354\ub137<\/strong>, \uc2e0\ud638 \uacb0\ud569\uc744 \uc219\uc9c0\ud568\uc73c\ub85c\uc368 \ub354 \ub098\uc740 \uc124\uacc4, \ud5a5\uc0c1\ub41c \uc2e0\ub8b0\uc131, \uadf8\ub9ac\uace0 \uac1c\uc120\ub41c \uc2dc\uc2a4\ud15c \uc131\ub2a5\uc744 \ub2ec\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>\uc2e0\ud638 \uacb0\ud569(signal coupling)\uc774\ub780 \ubb34\uc5c7\uc778\uc9c0, \ucee4\ud328\uc2dc\ud2f0\ube0c \uacb0\ud569\uacfc \ud2b8\ub79c\uc2a4\ud3ec\uba38 \uacb0\ud569\uc774 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\ub294\uc9c0, \uadf8\ub9ac\uace0 \uc804\uc790\uacf5\ud559, \ub124\ud2b8\uc6cc\ud0b9, PCB \uc124\uacc4\uc5d0\uc11c \uc65c \uc911\uc694\ud55c\uc9c0\ub97c \uc54c\uc544\ubcf4\uc138\uc694.<\/p>","protected":false},"author":1,"featured_media":6531,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[23],"class_list":["post-6532","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\/ko\/wp-json\/wp\/v2\/posts\/6532","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/comments?post=6532"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/posts\/6532\/revisions"}],"predecessor-version":[{"id":11073,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/posts\/6532\/revisions\/11073"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/media\/6531"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/media?parent=6532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/categories?post=6532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/tags?post=6532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}