{"id":148180,"date":"2024-04-27T15:50:06","date_gmt":"2024-04-27T15:50:06","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%b0%a8%eb%8f%99-%ec%a0%84%ec%95%95-%ec%a6%9d%ed%8f%ad%ea%b8%b0\/"},"modified":"2024-04-27T15:50:16","modified_gmt":"2024-04-27T15:50:16","slug":"%ec%b0%a8%eb%8f%99-%ec%a0%84%ec%95%95-%ec%a6%9d%ed%8f%ad%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%b0%a8%eb%8f%99-%ec%a0%84%ec%95%95-%ec%a6%9d%ed%8f%ad%ea%b8%b0\/","title":{"rendered":"\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30"},"content":{"rendered":"<p class=\"sidekick\">\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30\uc758 \uae30\ub2a5 \ubc0f \uc6d0\ub9ac\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uace0, \uc7a1\uc74c \uc81c\uac70 \ud6a8\uacfc \ubc0f \uc2e4\uc0dd\ud65c \uc751\uc6a9 \uc608\ub97c \ud1b5\ud574 \uc774\ud574\ub97c \ub3d5\ub294 \uae30\uc0ac\uc785\ub2c8\ub2e4.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/04\/\ucc28\ub3d9-\uc804\uc555-\uc99d\ud3ed\uae30.png\" alt=\"\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30\"\/><\/p>\n<h2>\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30\uc758 \uae30\ubcf8 \uc6d0\ub9ac\uc640 \uc791\ub3d9 \ubc29\uc2dd<\/h2>\n<p>\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30\ub294 \uc804\uc790\ud68c\ub85c \ubd84\uc57c\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud558\ub294 \ubd80\ud488\uc73c\ub85c, \ub450 \uc785\ub825 \uc2e0\ud638 \uac04\uc758 \ucc28\uc774\ub97c \uc99d\ud3ed\ud558\ub294 \uae30\ub2a5\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ucc28\ub3d9 \ubc29\uc2dd\uc740 \uc7a1\uc74c(noise)\uacfc \uac19\uc740 \uc6d0\ud558\uc9c0 \uc54a\ub294 \uc2e0\ud638\ub97c \uc81c\uac70\ud558\ub294 \ub370 \ub9e4\uc6b0 \ud6a8\uacfc\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc5ec\ub7ec\ubd84\uc774 \uc774\ud574\ub97c \ub3d5\uae30 \uc704\ud574, \ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30\uc758 \uae30\ubcf8\uc801\uc778 \uad6c\uc131\uacfc \uc791\ub3d9 \uc6d0\ub9ac\uc5d0 \ub300\ud574 \uac04\ub2e8\ud558\uac8c \uc124\uba85\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30\ub780?<\/h2>\n<p>\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30(\ub610\ub294 \ucc28\ub3d9 \uc99d\ud3ed\uae30)\ub294 \ub450 \uac1c\uc758 \uc785\ub825\ub2e8\uc744 \uac00\uc9c0\uba70, \uc774\ub4e4 \uc0ac\uc774\uc758 \uc804\uc555 \ucc28\ub97c \uac80\ucd9c\ud558\uc5ec \uc99d\ud3ed\ud558\ub294 \uc804\uc790 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc774\ub4e4 \uc785\ub825\ub2e8 \uc911 \ud558\ub098\ub294 &#8216;\ube44\ubc18\uc804 \uc785\ub825'(non-inverting input)\uc73c\ub85c \ud45c\uc2dc\ub418\uba70 \ubcf4\ud1b5 &#8216;+&#8217;\ub85c \ud45c\uc2dc\ub429\ub2c8\ub2e4. \ub2e4\ub978 \ud558\ub098\ub294 &#8216;\ubc18\uc804 \uc785\ub825'(inverting input)\uc73c\ub85c, &#8216;-&#8216;\ub85c \ud45c\uc2dc\ub429\ub2c8\ub2e4. \ucc28\ub3d9 \uc99d\ud3ed\uae30\ub294 \uc774 \ub450 \uc785\ub825 \uac04\uc758 \ucc28\uc774\ub97c \uac10\uc9c0\ud574 \uc99d\ud3ed\ud558\uba70, \uc678\ubd80\uc758 \uac04\uc12d\uc774\ub098 \uc7a1\uc74c\uc774 \ub450 \uc785\ub825\uc5d0 \ub3d9\uc2dc\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce60 \uacbd\uc6b0 \uc774\ub97c \uc0c1\uc1c4\ud558\uc5ec \uc2e0\ud638\uc758 \uc815\ud655\uc131\uc744 \ub192\uc785\ub2c8\ub2e4.<\/p>\n<h2>\ucc28\ub3d9 \uc99d\ud3ed\uae30\uc758 \uad6c\uc131<\/h2>\n<ul>\n<li>\ud2b8\ub79c\uc9c0\uc2a4\ud130 &#8211; \ucc28\ub3d9 \uc99d\ud3ed\uae30\uc758 \ud575\uc2ec \uad6c\uc131 \uc694\uc18c\ub85c, \uc77c\ubc18\uc801\uc73c\ub85c \ub450 \uac1c\uc758 \ud2b8\ub79c\uc9c0\uc2a4\ud130\uac00 \ub300\uce6d\uc801\uc73c\ub85c \ubc30\uce58\ub429\ub2c8\ub2e4.<\/li>\n<li>\uc99d\ud3ed \ud68c\ub85c &#8211; \ud2b8\ub79c\uc9c0\uc2a4\ud130\ub97c \ud1b5\ud574 \uc5bb\uc5b4\uc9c4 \uc2e0\ud638\ub97c \uc99d\ud3ed\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc804\uc6d0 \uacf5\uae09 &#8211; \uc99d\ud3ed\uae30\uac00 \ub3d9\uc791\ud558\uae30 \uc704\ud574 \ud544\uc694\ud55c \uc804\ub825\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\ucc28\ub3d9 \uc99d\ud3ed\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac<\/h2>\n<p>\ucc28\ub3d9 \uc99d\ud3ed\uae30\uc758 \uc8fc\ub41c \ubaa9\uc801\uc740 \ub450 \uc785\ub825 \uac04\uc758 \uc804\uc555 \ucc28\uc774\ub9cc\uc744 \uc99d\ud3ed\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub97c \uc218\ud559\uc801\uc73c\ub85c \ud45c\ud604\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc740 \uc2dd\uc73c\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p>\\[ V_{\ucd9c\ub825} = A_d \\times (V_{+} &#8211; V_{-}) \\]<\/p>\n<p>\uc5ec\uae30\uc11c \\( A_d \\)\ub294 \ucc28\ub3d9 \uc99d\ud3ed\ub960(differential gain)\ub97c \ub098\ud0c0\ub0b4\uace0, \\( V_{\ucd9c\ub825} \\)\uc740 \uc99d\ud3ed\uae30\uc758 \ucd9c\ub825 \uc804\uc555\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \\( V_{+} \\)\ub294 \ube44\ubc18\uc804 \uc785\ub825 \uc804\uc555\uc774\uba70, \\( V_{-} \\)\ub294 \ubc18\uc804 \uc785\ub825 \uc804\uc555\uc785\ub2c8\ub2e4. <\/p>\n<p>\ub9cc\uc77c \\( V_{+} \\)\uc640 \\( V_{-} \\)\uac00 \ub3d9\uc77c\ud55c \uc7a1\uc74c \uc2e0\ud638\ub97c \ubc1b\ub294\ub2e4\uba74, \ub450 \uc2e0\ud638 \uac04\uc758 \ucc28\uc774\ub294 0\uc774 \ub418\uace0, \ub530\ub77c\uc11c \ucd9c\ub825 \uc804\uc555\uc5d0\ub294 \uc7a1\uc74c\uc774 \ud3ec\ud568\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774\uc640 \uac19\uc740 \ud2b9\uc131 \ub54c\ubb38\uc5d0 \ucc28\ub3d9 \uc99d\ud3ed\uae30\ub294 \uc624\ub514\uc624 \uc7a5\ube44, \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c, \uc758\ub8cc \uc7a5\ube44 \ub4f1 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc2e0\ud638\uc758 \uc815\ud655\ub3c4\ub97c \uc720\uc9c0\ud558\ub294 \ub370 \ud544\uc218\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<h2>\ucc28\ub3d9 \uc99d\ud3ed\uae30\uc758 \uc2e4\uc0dd\ud65c \uc751\uc6a9 \uc608<\/h2>\n<ol>\n<li><b>\uc624\ub514\uc624 \uc2dc\uc2a4\ud15c:<\/b> \uc7a1\uc74c \uc5c6\uc774 \uae68\ub057\ud55c \uc624\ub514\uc624 \uc2e0\ud638\ub97c \uc5bb\uae30 \uc704\ud574 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n<li><b>\uacc4\uce21\uae30:<\/b> \uc804\uc790 \uc2e0\ud638\ub97c \uc815\ubc00\ud558\uac8c \uce21\uc815\ud558\uae30 \uc704\ud55c \uc7a5\ube44\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n<li><b>\uc758\ub8cc \uc7a5\ube44:<\/b> \ud658\uc790\uc758 \uc0dd\uccb4 \uc2e0\ud638\ub97c \uc815\ud655\ud788 \uce21\uc815\ud574\uc57c \ud558\ub294 \uc758\ub8cc \uc9c4\ub2e8 \uc7a5\ube44\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n<li><b>\ud1b5\uc2e0 \uc2dc\uc2a4\ud15c:<\/b> \ub370\uc774\ud130 \uc804\uc1a1 \uc2dc \uc7a1\uc74c\uc744 \ucd5c\uc18c\ud654\ud558\uae30 \uc704\ud574 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<p>\uc774\ucc98\ub7fc \ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30\ub294 \ubcf5\uc7a1\ud574 \ubcf4\uc77c \uc218 \uc788\ub294 \uc804\uc790 \ud68c\ub85c\uc758 \uae30\ubcf8 \uc694\uc18c\uc9c0\ub9cc, \uc2e4\uc81c \uc0dd\ud65c\uc5d0\uc11c \ub9e4\uc6b0 \ub2e4\uc591\ud558\uac8c \ud65c\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uae30\uc0ac\ub97c \ud1b5\ud574 \ucc28\ub3d9 \uc99d\ud3ed\uae30\uc758 \uae30\ubcf8 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0, \uc8fc\uc704\uc5d0\uc11c \uc774\ub97c \uc5b4\ub5bb\uac8c \ud65c\uc6a9\ud558\ub294\uc9c0 \uc2e4\uc0dd\ud65c \uc608\ub97c \ud1b5\ud574 \uad00\ucc30\ud574\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30\uc758 \uae30\ub2a5 \ubc0f \uc6d0\ub9ac\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uace0, \uc7a1\uc74c \uc81c\uac70 \ud6a8\uacfc \ubc0f \uc2e4\uc0dd\ud65c \uc751\uc6a9 \uc608\ub97c \ud1b5\ud574 \uc774\ud574\ub97c \ub3d5\ub294 \uae30\uc0ac\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":183292,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-148180","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-88","tag-89","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30 | \uc791\ub3d9 \ubc29\uc2dd, \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubc0f \uc7a5\uc810<\/title>\n<meta name=\"description\" content=\"\ucc28\ub3d9 \uc804\uc555 \uc99d\ud3ed\uae30\uc758 \uae30\ub2a5 \ubc0f \uc6d0\ub9ac\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uace0, \uc7a1\uc74c \uc81c\uac70 \ud6a8\uacfc \ubc0f 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