{"id":2002,"date":"2022-10-08T12:49:51","date_gmt":"2022-10-08T03:49:51","guid":{"rendered":"https:\/\/www.kyu.kr\/?p=2002"},"modified":"2022-10-08T12:49:52","modified_gmt":"2022-10-08T03:49:52","slug":"c22-%ed%94%84%eb%a6%ac%ec%95%b0%ed%94%84%ec%9d%98-thd-%ec%b8%a1%ec%a0%95","status":"publish","type":"post","link":"https:\/\/www.kyu.kr\/?p=2002","title":{"rendered":"C22 \ud504\ub9ac\uc570\ud504\uc758 THD \uce21\uc815"},"content":{"rendered":"\n

\ub9e4\ud0a8\ud1a0\uc2dc C22\uc5d0\uc11c \ud1a4 \ucee8\ud2b8\ub864\uc744 \uc81c\uc678\ud558\uc5ec \uc911\uad6d \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc774 \uc124\uacc4\ud55c \ud68c\ub85c\uac00 \ub9ce\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc911\uc5d0\uc11c PCB\ub97c \ub9cc\ub4e4\uc5b4 \ud310\ub9e4\ud558\ub294 \uc5ec\ub7ec \ubc84\uc804\uc774 \uc788\ub294\ub370 \uadf8 \uc911 \ube44\uad50\uc801 \ucd5c\uc2e0 \ubc84\uc804\uc744 \uc608\uc804\uc5d0 \uad6c\uc785\ud558\uc600\uc2b5\ub2c8\ub2e4. \uc774 \ud68c\ub85c\ub294 12AX7 \uc138 \uc54c\uc744 \uc4f0\ub3c4\ub85d \ub418\uc5b4 \uc788\ub294\ub370 \uc5b4\ucc28\ud53c \ubc29\uad6c\uc11d\uc5d0\uc11c \ud070 gain\uc774 \ud544\uc694\uac00 \uc5c6\uace0 \uadf8\ub300\ub85c \ub9cc\ub4e4\uba74 \uc7ac\ubbf8\uac00 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \uc6d0 \ud68c\ub85c\ub97c \ubcc0\uacbd\ud574\uc11c 12AU7 \uc138 \uc54c\uc744 \uc4f0\ub3c4\ub85d \ubcc0\uacbd\ud558\uc5ec \uadf8\uac78\ub85c \uc790\uc791 \ud504\ub9ac\uc570\ud504\ub97c \ub9cc\ub4e4\uc5b4 \uacc4\uc18d \uc4f0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc6d0\ud310\uc740 \uc544\ub798\uc640 \uac19\uc740 \ud68c\ub85c\uc785\ub2c8\ub2e4.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

\ub2f9\uc2dc\uc5d0\ub294 HP8903B\uac00 \uc5c6\uc5c8\uae30 \ub54c\ubb38\uc5d0 THD\ub97c \uce21\uc815\ud558\uc9c0 \ubabb\ud588\ub294\ub370 \uc774\ubc88\uc5d0 \uce21\uc815\uc744 \ud574\ubcf4\uace0 \ube44\uad50\ud574 \ubcf4\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uba3c\uc800 \uce21\uc815\uacb0\uacfc\uc785\ub2c8\ub2e4.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

0.38Vrms\ub97c \uc785\ub825\uc5d0 \uc8fc\uace0 \ubcfc\ub968\uc744 \uc870\uc808\ud558\uc5ec \ucd9c\ub825\uc774 0.99Vrms\uac00 \ub098\uc624\ub3c4\ub85d \ud55c \uc124\uc815\uc758 THD \uce21\uc815\uac12\uc785\ub2c8\ub2e4. 1KHz \uc785\ub825\uc5d0\uc11c \uc57d 0.015%\uac00 \uce21\uc815\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc774\uac83\uacfc \ube44\uc2b7\ud558\uac8c \uc124\uc815\uc744 \ud558\uc5ec \uc2dc\ubbac\uc744 \ub3cc\ub824\ubd05\ub2c8\ub2e4. \uc785\ub825\uc5d0 0.53V \uc815\ub3c4 \uc8fc\uba74 \ub420 \uac83 \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

\uc2dc\ubbac \uacb0\uacfc\ub294 0.08% \uc815\ub3c4\ub85c \ub098\uc624\ub294\uad70\uc694. \uc0ac\uc2e4 LTspice\uac00 \ubb34\ub8cc \ud504\ub85c\uadf8\ub7a8\uc774\uae30 \ub54c\ubb38\uc5d0 \uc544\uc8fc \uc815\ubc00\ud558\uc9c0\ub294 \uc54a\ub2e4\uace0 \ud569\ub2c8\ub2e4. \uadf8\ub9ac\uace0 HP8903B\ub3c4 \uc624\ub798\ub41c, \uadf8\ub9ac\uace0 \uc61b\ub0a0 \uc815\ubc00\ub3c4 \uae30\uc900\uc744 \uac00\uc9c4 \uc7a5\ube44\uc774\uae30 \ub54c\ubb38\uc5d0 \uc544\uc8fc \uc815\ud655\ud558\uc9c0\ub294 \uc54a\uc744 \uac83\uc785\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ub458 \ub2e4 0.1% \ubbf8\ub9cc\uc758 \uac12\uc744 \ubcf4\uc5ec\uc8fc\uace0 \uc788\uc73c\ub2c8 order\uc758 \uc815\ud569\uc131\uc740 \ubcf4\uc5ec\uc900\ub2e4\uace0 \ud574\uc57c \ud560\uae4c\uc694? ^^<\/p>\n","protected":false},"excerpt":{"rendered":"

\ub9e4\ud0a8\ud1a0\uc2dc C22\uc5d0\uc11c \ud1a4 \ucee8\ud2b8\ub864\uc744 \uc81c\uc678\ud558\uc5ec \uc911\uad6d \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc774 \uc124\uacc4\ud55c \ud68c\ub85c\uac00 \ub9ce\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc911\uc5d0\uc11c PCB\ub97c \ub9cc\ub4e4\uc5b4 \ud310\ub9e4\ud558\ub294 \uc5ec\ub7ec \ubc84\uc804\uc774 \uc788\ub294\ub370 \uadf8 \uc911 \ube44\uad50\uc801 \ucd5c\uc2e0 \ubc84\uc804\uc744 \uc608\uc804\uc5d0 \uad6c\uc785\ud558\uc600\uc2b5\ub2c8\ub2e4. \uc774 \ud68c\ub85c\ub294 12AX7 \uc138 \uc54c\uc744 \uc4f0\ub3c4\ub85d \ub418\uc5b4 \uc788\ub294\ub370 \uc5b4\ucc28\ud53c \ubc29\uad6c\uc11d\uc5d0\uc11c \ud070 gain\uc774 \ud544\uc694\uac00 \uc5c6\uace0 \uadf8\ub300\ub85c \ub9cc\ub4e4\uba74 \uc7ac\ubbf8\uac00 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \uc6d0 \ud68c\ub85c\ub97c \ubcc0\uacbd\ud574\uc11c 12AU7 \uc138 \uc54c\uc744 \uc4f0\ub3c4\ub85d \ubcc0\uacbd\ud558\uc5ec \uadf8\uac78\ub85c \uc790\uc791 …
C22 \ud504\ub9ac\uc570\ud504\uc758 THD \uce21\uc815<\/span> \ub354\ubcf4\uae30<\/a><\/p>\n","protected":false},"author":1,"featured_media":2006,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[230,204,231,232],"class_list":["post-2002","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-108","tag-c22","tag-hp8903b","tag-mcintosh-c22","tag-thd"],"_links":{"self":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/2002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2002"}],"version-history":[{"count":1,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/2002\/revisions"}],"predecessor-version":[{"id":2007,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/2002\/revisions\/2007"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/media\/2006"}],"wp:attachment":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}