{"id":24503,"date":"2025-12-06T09:01:42","date_gmt":"2025-12-06T00:01:42","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/12\/06\/24503\/"},"modified":"2025-12-06T09:01:42","modified_gmt":"2025-12-06T00:01:42","slug":"%ec%84%9c%ea%b0%95%eb%8c%80%ed%95%99%ea%b5%90-22%eb%85%84%eb%8f%84-%ec%a0%84%ec%9e%90%ed%9a%8c%eb%a1%9c%ec%8b%a4%ed%97%98-6%ec%a3%bc%ec%b0%a8-%ea%b2%b0%ea%b3%bc%eb%a0%88%ed%8f%ac%ed%8a%b8-a%ec%9e%90","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/12\/06\/24503\/","title":{"rendered":"\uc11c\uac15\ub300\ud559\uad50 22\ub144\ub3c4 \uc804\uc790\ud68c\ub85c\uc2e4\ud5d8 6\uc8fc\ucc28 \uacb0\uacfc\ub808\ud3ec\ud2b8 (A+\uc790\ub8cc)"},"content":{"rendered":"

<\/p>\n

\ubaa9\ucc28<\/strong><\/p>\n

\u2160. \uc2e4\ud5d8\ubaa9\uc801
\n\u2161. \uc774\ub860
\n\u2162. \uc2e4\ud5d8 \uacb0\uacfc \ubc0f \ubd84\uc11d
\n\u2163. Discussion<\/p>\n

\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n

1. \uc2e4\ud5d8 \ubaa9\uc801
\n– BJT\ub97c \uc774\uc6a9\ud55c \uacf5\ud1b5 \ubca0\uc774\uc2a4 \uc99d\ud3ed\uae30\uc758 \ub3d9\uc791\uc744 \ud655\uc778\ud574\ubcf8\ub2e4.
\n– \uc99d\ud3ed\uae30\uc758 \uc785\ub825\uacfc \ucd9c\ub825 \uc784\ud53c\ub358\uc2a4\ub97c \uce21\uc815\ud574\ubcf8\ub2e4.
\n– BJT\ub97c \uc774\uc6a9\ud55c \uc5d0\ubbf8\ud130 \ud314\ub85c\uc6cc\ub97c \uc124\uacc4\ud558\uace0, \ub3d9\uc791\uc744 \ud655\uc778\ud55c\ub2e4.<\/p>\n

2. \uc774\ub860
\n– \uacf5\ud1b5 \ubca0\uc774\uc2a4 \uc99d\ud3ed\uae30<\/p>\n

\uacf5\ud1b5 \ubca0\uc774\uc2a4 \uc99d\ud3ed\uae30\ub780, \ubca0\uc774\uc2a4\ub97c ac ground\ub85c, \uc785\ub825\uc744 \uc5d0\ubbf8\ud130\ub85c, \ucd9c\ub825\uc744 \ucf5c\ub809\ud130\ub85c \ud558\uac8c \ub418\ub294 \uc99d\ud3ed\uae30\uc774\ub2e4. \uc704\uc758 \uc0ac\uc9c4\uc740 \uae30\ubcf8 \ud68c\ub85c\uc640, \uc18c\uc2e0\ud638 \ub4f1\uac00\ud68c\ub85c\ub97c \ub098\ud0c0\ub0b8\ub2e4. \uc18c\uc2e0\ud638 \ub4f1\uac00\ud68c\ub85c\ub97c \uc774\uc6a9\ud558\uba74, \uc99d\ud3ed\uae30\uc758 \uc785\ub825 \uc784\ud53c\ub358\uc2a4, \ucd9c\ub825 \uc784\ud53c\ub358\uc2a4, \uc804\uc555 \uc774\ub4dd \ub4f1\uc758 \uc774\ub860\uac12\uc744 \uacc4\uc0b0\ud560 \uc218 \uc788\ub2e4. \uc774\ub54c \u03b2=gmr\u03c0\ub85c \uacc4\uc0b0\ub41c\ub2e4. \uc785\ub825 \uc784\ud53c\ub358\uc2a4 Rin = r\u03c0\/(1+\u03b2) = re , \ucd9c\ub825 \uc784\ud53c\ub358\uc2a4 Rout = RC\uc640 \uac19\ub2e4.<\/p>\n

\uc77c\ubc18\uc801\uc778 \uc99d\ud3ed\uae30\uc640\ub294 \ub2e4\ub974\uac8c, \uacf5\ud1b5 \ubca0\uc774\uc2a4 \uc99d\ud3ed\uae30\ub294 \uc785\ub825 \uc784\ud53c\ub358\uc2a4\uac00 \ub0ae\uc544, coaxid cable\uc758 \ud2b9\uc131 \uc800\ud56d\uc744 \ub9de\ucd94\uae30 \uc27d\ub2e4\ub294 \uac83\uc774 \ud2b9\uc9d5\uc774\ub2e4.<\/p>\n

\uc99d\ud3ed\uae30\uac00 \ub3d9\uc791\ud558\ub824\uba74 active mode\uc5ec\uc57c \ud558\uae30 \ub54c\ubb38\uc5d0, \uc704\uc758 \ud68c\ub85c\uc640 \uac19\uc774 \ubc14\uc774\uc5b4\uc2a4\uac00 \uac78\ub9b0 \ud68c\ub85c\ub97c \uc774\uc6a9\ud574\uc57c \ud55c\ub2e4. \uc18c\uc2e0\ud638 ac \ud68c\ub85c\uc5d0 \ub300\ud574\uc11c\ub294 C\uac00 short, DC\uac00 ground\uc774\uae30 \ub54c\ubb38\uc5d0, \uc624\ub978\ucabd\uc758 \ub4f1\uac00\ud68c\ub85c\ub85c \ubd84\uc11d\ud560 \uc218 \uc788\uace0, KCL\uc744 \ud1b5\ud574 \uc804\uc555\uc758 \uc774\ub4dd\uc744 \uad6c\ud574\ubcf4\uba74<\/p>\n

\uc774\ub807\uac8c \uc804\uc555\uc774\ub4dd\uc758 \uc774\ub860\uac12 \ub610\ud55c \uacc4\uc0b0\ud560 \uc218 \uc788\ub2e4.<\/p>\n

– \uc785\ub825 \uc784\ud53c\ub358\uc2a4 \uce21\uc815<\/p>\n

\uc99d\ud3ed\uae30\uc758 \uc785\ub825 \uc784\ud53c\ub358\uc2a4\ub97c \uce21\uc815\ud558\uae30 \uc704\ud574\uc11c\ub294, \uc704\uc758 \ub4f1\uac00\ud68c\ub85c\ucc98\ub7fc \uc99d\ud3ed\uae30\ub97c \ud558\ub098\uc758 \uc784\ud53c\ub358\uc2a4 \uc18c\uc790\ub85c \uc0dd\uac01\ud558\uace0, Rsig\uc640\uc758 voltage divider\ub97c \uc774\uc6a9\ud558\uba74 \ub41c\ub2e4.<\/p>\n

\uc704\uc758 \uc804\uc555\ubd84\ubc30 \uc2dd\uc744 \uc774\uc6a9\ud574 Rin\uc744 \uacc4\uc0b0\ud560 \uc218 \uc788\ub2e4.<\/p>\n

– \ucd9c\ub825 \uc784\ud53c\ub358\uc2a4 \uce21\uc815<\/p>\n

\ucd9c\ub825 \uc784\ud53c\ub358\uc2a4\ub3c4 \uc784\ub825 \uc784\ud53c\ub358\uc2a4\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c \uc804\uc555\ubd84\ubc30\uc758 \uc6d0\ub9ac\ub97c \uc774\uc6a9\ud55c\ub2e4. RL\uc744 \ubc14\uafb8\uc5b4\uac00\uba70 Vout\uc744 \uce21\uc815\ud558\uace0, \uadf8 \ube44\ub97c \uad6c\ud558\uba74 Rout\uc744 \uad6c\ud560 \uc218 \uc788\ub2e4.<\/p>\n

– \uc5d0\ubbf8\ud130 \ud314\ub85c\uc5b4<\/p>\n

\uc5d0\ubbf8\ud130 \ud314\ub85c\uc6cc\uc758 \uae30\ubcf8 \ud68c\ub85c\ub294 \uc704\uc640 \uac19\ub2e4. \uc785\ub825\uc740 \ubca0\uc774\uc2a4, \ucd9c\ub825\uc740 \uc5d0\ubbf8\ud130, \uacf5\ud1b5\uc811\uc9c0\ub294 \ucf5c\ub809\ud130\uc774\ub2e4. \uc804\uc555\uc774\ub4dd\uc774 RL\/(RL + re)\uc774\uae30\uc5d0, \uac70\uc758 1\uc5d0 \uac00\uae4c\uc6b4 \uc218\uce58\uac00 \ub098\uc624\uac8c \ub41c\ub2e4.<\/p>\n

\uae30\ubcf8 \uc5d0\ubbf8\ud130 \ud314\ub85c\uc5b4\uc758 \uc785\ub825\uacfc \ucd9c\ub825 \uc784\ud53c\ub358\uc2a4\ub294 \uc704\uc640 \uac19\ub2e4. \uc5d0\ubbf8\ud130 \ud314\ub85c\uc5b4\ub294 \uc785\ub825 \uc784\ud53c\ub358\uc2a4\uac00 \ud06c\uace0, \ucd9c\ub825 \uc784\ud53c\ub358\uc2a4\uac00 \uc791\uc740 \uac83\uc774 \ud2b9\uc9d5\uc774\ub2e4. <\/p>\n

\ubc14\uc774\uc5b4\uc2a4\ub97c \ud3ec\ud568\ud55c \uc5d0\ubbf8\ud130 \ud314\ub85c\uc5b4\uc758 \uc804\uccb4 \ud68c\ub85c\ub294 \uc704\uc758 \uc0ac\uc9c4\uacfc \uac19\ub2e4. \uc5d0\ubbf8\ud130 \ud314\ub85c\uc5b4 \ub610\ud55c \uc18c\uc2e0\ud638 \ub4f1\uac00\ud68c\ub85c\ub97c \uc774\uc6a9\ud574 \uc804\uc555\uc774\ub4dd\uc744 \uacc4\uc0b0\ud560 \uc218 \uc788\uace0,<\/p>\n

\uc804\uc555\uc774\ub4dd\uc758 \uacc4\uc0b0\uac12\uc740 \uc774\ub807\uac8c \ub098\uc624\uac8c \ub41c\ub2e4.
\n\ub610\ud55c \ubc14\uc774\uc5b4\uc2a4\ub97c \ud3ec\ud568\ud55c \uc804\uccb4 \ud68c\ub85c\uc5d0\uc11c\ub294 \uc785\ub825 \uc784\ud53c\ub358\uc2a4\uac00 R1||R2||(r\u03c0+(1+\u03b2)RE \ub85c \uacc4\uc0b0\ub41c\ub2e4.<\/p>\n

\ucd9c\ucc98 : \ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\ubaa9\ucc28 \u2160. \uc2e4\ud5d8\ubaa9\uc801 \u2161. \uc774\ub860 \u2162. \uc2e4\ud5d8 \uacb0\uacfc \ubc0f \ubd84\uc11d \u2163. Discussion \ubcf8\ubb38\ub0b4\uc6a9 1. \uc2e4\ud5d8 \ubaa9\uc801 – BJT\ub97c \uc774\uc6a9\ud55c \uacf5\ud1b5 \ubca0\uc774\uc2a4 \uc99d\ud3ed\uae30\uc758 \ub3d9\uc791\uc744 \ud655\uc778\ud574\ubcf8\ub2e4. – \uc99d\ud3ed\uae30\uc758 \uc785\ub825\uacfc \ucd9c\ub825 \uc784\ud53c\ub358\uc2a4\ub97c \uce21\uc815\ud574\ubcf8\ub2e4. – BJT\ub97c \uc774\uc6a9\ud55c \uc5d0\ubbf8\ud130 \ud314\ub85c\uc6cc\ub97c \uc124\uacc4\ud558\uace0, \ub3d9\uc791\uc744 \ud655\uc778\ud55c\ub2e4. 2. \uc774\ub860 – \uacf5\ud1b5 \ubca0\uc774\uc2a4 \uc99d\ud3ed\uae30 \uacf5\ud1b5 \ubca0\uc774\uc2a4 \uc99d\ud3ed\uae30\ub780, \ubca0\uc774\uc2a4\ub97c ac ground\ub85c, \uc785\ub825\uc744 \uc5d0\ubbf8\ud130\ub85c, \ucd9c\ub825\uc744 \ucf5c\ub809\ud130\ub85c \ud558\uac8c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[30456,30457,15718,8025,5955,5650,30455],"class_list":["post-24503","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-30456","tag-30457","tag-15718","tag-8025","tag-5955","tag-5650","tag-30455"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/24503","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/comments?post=24503"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/24503\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=24503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=24503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=24503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}