{"id":24504,"date":"2025-12-06T09:01:43","date_gmt":"2025-12-06T00:01:43","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/12\/06\/24504\/"},"modified":"2025-12-06T09:01:43","modified_gmt":"2025-12-06T00:01:43","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%98-5%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\/24504\/","title":{"rendered":"\uc11c\uac15\ub300\ud559\uad50 22\ub144\ub3c4 \uc804\uc790\ud68c\ub85c\uc2e4\ud5d8 5\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– \ubc14\uc774\ud3f4\ub77c \ud2b8\ub79c\uc9c0\uc2a4\ud130 BJT\uc758 \uc804\ub958-\uc804\uc555 \ud2b9\uc131\uacfc \ubc14\uc774\uc5b4\uc2a4 \uc870\uac74\uc744 \ud655\uc778\ud55c\ub2e4.
\n– BJT\ub97c \uc774\uc6a9\ud55c \uacf5\ud1b5 \uc774\ubbf8\ud130 \uc99d\ud3ed\uae30\uc758 \ub3d9\uc791\uc744 \ud655\uc778\ud574\ubcf8\ub2e4.<\/p>\n

2. \uc774\ub860
\n– \ubc14\uc774\ud3f4\ub77c \ud2b8\ub79c\uc9c0\uc2a4\ud130<\/p>\n

\ubc14\uc774\ud3f4\ub77c \ud2b8\ub79c\uc9c0\uc2a4\ud130\ub294 \ub450\uac1c\uc758 pn \uc811\ud569\uc774 \uc5f0\uacb0\ub41c \uad6c\uc870\ub85c, \uc138\uac1c\uc758 \ub2e8\uc790 \ubca0\uc774\uc2a4, \uc774\ubbf8\ud130, \ucf5c\ub809\ud130\uac00 \uc788\ub2e4.<\/p>\n

\ubc14\uc774\ud3f4\ub77c \ud2b8\ub79c\uc9c0\uc2a4\ud130\uc758 \uc804\uc555-\uc804\ub958 \ud2b9\uc131\uc758 \uc704\uc758 \uc0ac\uc9c4\uacfc \uac19\ub2e4. IC\uc640 IB\uc758 \ube44\ub97c \u03b2\ub77c\uace0 \ud558\uace0, \uc774\ub294 \ubcf4\ud1b5 100~200\uc758 \ud070 \uac12\uc774\ub2e4. \ud558\uc9c0\ub9cc IE\uc640 IC\uc758 \ube44\uc778 \u03b1\ub294 1\uc5d0 \ub9e4\uc6b0 \uac00\uae4c\uc6b4 \uc218\uce58\uac00 \ub41c\ub2e4.<\/p>\n

BJT\ub294 VCE, V\u00acBE\uc5d0 \ub530\ub77c \ub3d9\uc791 \uc601\uc5ed\uc774 \ubc14\ub00c\uac8c \ub418\ub294\ub370, \uc77c\ubc18\uc801\uc73c\ub85c \uac00\uc7a5 \ub9ce\uc774 BJT\ub97c \ud65c\uc6a9\ud560 \uc218 \uc788\ub294 \uc601\uc5ed\uc740 \ub2a5\ub3d9\uc601\uc5ed\uc73c\ub85c, VCE\uac00 VCEsat (=0.4V) \uc774\uc0c1\uc774\uace0, VBE\ub294 \ub2e4\uc774\uc624\ub4dc\uc758 \ud134\uc628\uc804\uc555\uacfc \ube44\uc2b7\ud55c 0.7V \uc774\uc0c1\uc77c \ub54c \uc870\uac74\uc744 \ub9cc\uc871\uc2dc\ud0a8\ub2e4. \ub2a5\ub3d9\uc601\uc5ed\uc5d0\uc11c IC\ub294 VCE\uac00 \ubcc0\ud55c\ub2e4 \ud574\ub3c4 \ud070 \ubcc0\ud654\uac00 \uc5c6\uc774, current source\ucc98\ub7fc \ub3d9\uc791\ud558\uac8c \ub41c\ub2e4.<\/p>\n

– \uc804\uc555\ubd84\ubc30 \ubc14\uc774\uc5b4\uc2a4 \ud68c\ub85c<\/p>\n

\uc704\uc758 \ud68c\ub85c\ub294 \uacf5\ud1b5 \uc804\uc6d0\uc73c\ub85c\ubd80\ud130, \uc800\ud56d\uc744 \uc774\uc6a9\ud574 \uc804\uc555\ubd84\ubc30\ub97c \ud568\uc73c\ub85c\uc368, BJT\uc758 \ub2a5\ub3d9\uc601\uc5ed \ubc14\uc774\uc5b4\uc2a4 \uc870\uac74\uc744 \ucda9\uc871\uc2dc\ud0a4\ub294 \ud68c\ub85c\uc774\ub2e4. \ud68c\ub85c\uc758 \ubd84\uc11d\uc744 \uc704\ud574, \uc810\uc120 \ub0b4\ubd80\uc758 \ud68c\ub85c\ub97c \ud14c\ube0c\ub09c \ub4f1\uac00\ud68c\ub85c\ub85c \ucc98\ub9ac\ud574\ubc84\ub9ac\uba74<\/p>\n

\uc774\ub807\uac8c \ub4f1\uac00\ud68c\ub85c\ub85c \ubd84\uc11d\ud560 \uc218 \uc788\uac8c \ub41c\ub2e4. \uc774\ub54c \uc124\uacc4 \uae30\uc900\uc740 R1\uacfc R2\uc5d0 \ud750\ub974\ub294 \uc804\ub958\uac00, \ubca0\uc774\uc2a4\uc804\ub958\ubcf4\ub2e4 10\ubc30 \uc774\uc0c1\uc774 \ub418\uc5b4\uc57c \ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n

– \uc790\uae30\ubc14\uc774\uc5b4\uc2a4 \ud68c\ub85c<\/p>\n

\uc774 \ud68c\ub85c\ub294 VC\uc758 \uc804\uc555\uc744 \uc774\uc6a9\ud574, \ubca0\uc774\uc2a4\uc758 \uc804\uc555\uacfc \uc804\ub958\ub97c \uacb0\uc815\ud558\ub294 \uc790\uae30 \ubc14\uc774\uc5b4\uc2a4 \ud68c\ub85c\uc774\ub2e4. <\/p>\n

– \ub2e4\uc774\uc624\ub4dc \uc5f0\uacb0 BJT\ud68c\ub85c<\/p>\n

NPN BJT\ub97c \uc774\uc6a9\ud574, \ub2e4\uc774\uc624\ub4dc\ub97c \uad6c\ud604\ud560 \uc218 \uc788\ub2e4. \ucf5c\ub809\ud130\uc640 \ubca0\uc774\uc2a4\ub97c \ud558\ub098\uc758 \ub178\ub4dc\ub85c \uc5f0\uacb0\ud55c\ub2e4\uba74, \ucf5c\ub809\ud130\uc640 \ubca0\uc774\uc2a4 \uc0ac\uc774\uc758 NP\uc811\ud569\uc740 \uc758\ubbf8\uac00 \uc5c6\uc5b4\uc9c0\uace0, \uc774\ubbf8\ud130\uc640\uc758 PN\uc811\ud569\ub9cc \ub0a8\uac8c \ub41c\ub2e4. \ub530\ub77c\uc11c \uc774\ub7ec\ud55c BJT\ub294 PN \ub2e4\uc774\uc624\ub4dc\ub85c\uc11c \ub3d9\uc791\ud560 \uc218 \uc788\uac8c \ub41c\ub2e4.<\/p>\n

– \uacf5\ud1b5 \uc5d0\ubbf8\ud130 \uc99d\ud3ed\ud68c\ub85c<\/p>\n

\uc5d0\ubbf8\ud130\ub97c gnd\ub85c \uc5f0\uacb0\ud558\uace0, \ubc14\uc774\uc5b4\uc2a4 \uc870\uac74\uc744 \ub9cc\uc871\uc2dc\ud0a8\ub2e4\uba74, BJT\ub97c \uc774\uc6a9\ud55c small signal \uc99d\ud3ed\ud68c\ub85c\ub97c \uc124\uacc4\ud560 \uc218 \uc788\ub2e4. \uc704\uc758 \uc0ac\uc9c4\uc740 \uacf5\ud1b5 \uc5d0\ubbf8\ud130 \uc99d\ud3ed\ud68c\ub85c\uc758 \uae30\ubcf8 \ud68c\ub85c\uc774\uace0, VCC\uc640 VBE\ub97c \ud1b5\ud574 \ub2a5\ub3d9\uc601\uc5ed\uc758 \ubc14\uc774\uc5b4\uc2a4 \uc870\uac74\uc774 \ub9cc\uc871\ub418\uace0, biasing point\uac00 \uacb0\uc815\ub41c\ub2e4\uba74<\/p>\n

\uc704\uc758 \uadf8\ub798\ud504\uc640 \uac19\uc774, small signal\uc778 vbe\uc758 \ubcc0\ud654\uc5d0 \uc758\ud574 ic\uac00 \uae30\uc6b8\uae30 gm\uc5d0 \ub530\ub77c \uc99d\ud3ed\ub418\uac8c \ub41c\ub2e4. <\/p>\n

\ub530\ub77c\uc11c \uc704\uc640 \uac19\uc740 \uc2dd\uc774 \uc131\ub9bd\ud558\uac8c \ub418\uace0, gm\uc740 iC\uc640 vBE\uc758 exponential \uad00\uacc4\ub97c \ubbf8\ubd84\ud568\uc73c\ub85c\uc368 IC \/ VT\ub85c \uad6c\ud560 \uc218 \uc788\uace0, \uc774\uac83\uc774 small signal transconductance\uac00 \ub41c\ub2e4.<\/p>\n

\ub2e4\uc774\uc624\ub4dc\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c, BJT\ub3c4 \uc18c\uc2e0\ud638 \uc785\ub825\uc5d0 \ub300\ud574\uc11c\ub294 \uc704\uc640 \uac19\uc740 \ub4f1\uac00\ud68c\ub85c\ub85c \uc0dd\uac01\ud560 \uc218 \uc788\ub2e4. <\/p>\n

\uc774\ub54c \uc704\uc640 \uac19\uc740 \uc9c0\ud45c\ub4e4\uc740, large signal\uc758 biasing\uc744 \uce21\uc815\ud568\uc73c\ub85c\uc368 \uad6c\ud560 \uc218 \uc788\ub2e4.<\/p>\n

\uc704\uc758 \ud68c\ub85c\ub294 \ubc14\uc774\uc5b4\uc2a4 \uc870\uac74\uc744 \ub9cc\uc871\uc2dc\ud0a4\uae30 \uc704\ud55c \uc804\uc6d0\uacfc \uc800\ud56d, DC\ucc28\ub2e8\uc744 \uc704\ud55c \uce90\ud328\uc2dc\ud130 \ub4f1\uc774 \ud3ec\ud568\ub41c \uc99d\ud3ed\uae30\uc758 \uc804\uccb4 \ud68c\ub85c\uc774\ub2e4. \ud68c\ub85c \ubd84\uc11d\uc744 \uc704\ud574\uc11c\ub294 DC\uc2e0\ud638\ub9cc\uc744 \uace0\ub824\ud558\uc5ec, \ubc14\uc774\uc5b4\uc2a4 \uc870\uac74\uc744 \uce21\uc815\ud574\uc11c \ub4f1\uac00\ud68c\ub85c\ub97c \uc704\ud55c \uc9c0\ud45c\ub4e4\uc744 \uacc4\uc0b0\ud574\uc57c \ud55c\ub2e4.<\/p>\n

\uadf8 \ub2e4\uc74c\uc740 \uc18c\uc2e0\ud638 ac\ub9cc\uc744 \uace0\ub824\ud558\uc5ec, \uc704\uc640 \uac19\uc740 \ub4f1\uac00\ud68c\ub85c\ub97c \ub9cc\ub4e4\uc5b4\uc11c \ubd84\uc11d\ud574\uc57c \ud55c\ub2e4. \uc774\ub54c \uc804\uc555\uc774\ub4dd\uc740 <\/p>\n

\uc774\ub807\uac8c \uacc4\uc0b0\ud560 \uc218 \uc788\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 – \ubc14\uc774\ud3f4\ub77c \ud2b8\ub79c\uc9c0\uc2a4\ud130 BJT\uc758 \uc804\ub958-\uc804\uc555 \ud2b9\uc131\uacfc \ubc14\uc774\uc5b4\uc2a4 \uc870\uac74\uc744 \ud655\uc778\ud55c\ub2e4. – BJT\ub97c \uc774\uc6a9\ud55c \uacf5\ud1b5 \uc774\ubbf8\ud130 \uc99d\ud3ed\uae30\uc758 \ub3d9\uc791\uc744 \ud655\uc778\ud574\ubcf8\ub2e4. 2. \uc774\ub860 – \ubc14\uc774\ud3f4\ub77c \ud2b8\ub79c\uc9c0\uc2a4\ud130 \ubc14\uc774\ud3f4\ub77c \ud2b8\ub79c\uc9c0\uc2a4\ud130\ub294 \ub450\uac1c\uc758 pn \uc811\ud569\uc774 \uc5f0\uacb0\ub41c \uad6c\uc870\ub85c, \uc138\uac1c\uc758 \ub2e8\uc790 \ubca0\uc774\uc2a4, \uc774\ubbf8\ud130, \ucf5c\ub809\ud130\uac00 \uc788\ub2e4. \ubc14\uc774\ud3f4\ub77c \ud2b8\ub79c\uc9c0\uc2a4\ud130\uc758 \uc804\uc555-\uc804\ub958 \ud2b9\uc131\uc758 […]<\/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-24504","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\/24504","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=24504"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/24504\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=24504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=24504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=24504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}