{"id":1663,"date":"2022-04-22T18:36:01","date_gmt":"2022-04-22T09:36:01","guid":{"rendered":"https:\/\/www.kyu.kr\/?p=1663"},"modified":"2022-04-22T18:36:01","modified_gmt":"2022-04-22T09:36:01","slug":"%ec%9e%ac%eb%af%b8%eb%a1%9c-%ed%95%b4%eb%b3%b4%eb%8a%94-class-d-%ec%95%b0%ed%94%84-%ec%b8%a1%ec%a0%95","status":"publish","type":"post","link":"https:\/\/www.kyu.kr\/?p=1663","title":{"rendered":"\uc7ac\ubbf8\ub85c \ud574\ubcf4\ub294 Class D \uc570\ud504 \uce21\uc815"},"content":{"rendered":"\n<p>\ub2e4\ub978 \uae00\uc5d0 \uc18c\uac1c\ud55c TI\uc758 TPA3116D2 \uce69\uc774 \uc0ac\uc6a9\ub41c Class D \uc570\ud504\uc785\ub2c8\ub2e4. \uc624\uc2e4\ub85c\uc2a4\ucf54\ud504\uac00 \uc788\uae30 \ub54c\ubb38\uc5d0 \uce21\uc815\uc744 \ud574\ubd24\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_1-1.png\" alt=\"\" class=\"wp-image-1664\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_1-1.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_1-1-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_1-1-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n\n<p>\ub178\ub780\uc0c9\uc774 \uc785\ub825\uc73c\ub85c \uc900 1KHz sine wave, \ub179\uc0c9\uc774 8\uc634 \ub354\ubbf8 \uc800\ud56d\uc5d0 \uc5f0\uacb0\ud55c \uac83\uc744 \uce21\uc815\ud55c \ucd9c\ub825\uc785\ub2c8\ub2e4. \uc544\ub0a0\ub85c\uadf8 \uc570\ud504\uc5d0\uc11c\ub294 \uc544\ubb34\ud2bc sine wave\uac00 \uce21\uc815\ub418\ub294\ub370 \ub514\uc9c0\ud138 \uc570\ud504\uc5d0\uc11c\ub294 \uc0c1\ub2f9\ud788 \ub3c5\ud2b9\ud55c \ud30c\ud615\uc774 \ub098\uc635\ub2c8\ub2e4. \uc99d\ud3ed \ubc29\uc2dd\uc774 PWM \ubc29\uc2dd\uc774\uae30 \ub54c\ubb38\uc774\ub77c\uace0 \ub4e4\uc740 \uac83 \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_2-1.png\" alt=\"\" class=\"wp-image-1665\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_2-1.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_2-1-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_2-1-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n\n<p>\uc57d\uac04 \ud655\ub300\ub97c \ud574\ubd24\uc2b5\ub2c8\ub2e4. \ucd18\ucd18\ud558\uac8c \uc62c\ub77c\uac00\ub294 \ud30c\ud615\uc774 \ub354 \uc798 \ubcf4\uc785\ub2c8\ub2e4<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_3-2.png\" alt=\"\" class=\"wp-image-1666\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_3-2.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_3-2-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_3-2-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n\n<p>FFT \ucea1\uccd0\uc785\ub2c8\ub2e4. \uac00\uc7a5 \ub192\uc740 \ubd09\uc6b0\ub9ac\ub294 \uc785\ub825\uc73c\ub85c \uc900 1KHz\uc774\uace0, 2KHz, 3KHz\uc5d0\uc11c \uc544\ub0a0\ub85c\uadf8 \uc570\ud504\ucc98\ub7fc \ud558\ubaa8\ub2c9\uc774 \ubcf4\uc774\ub124\uc694. \uadf8 \uc774\ud6c4\ub85c\ub294 \uc5b4\ub5bb\uac8c \ud574\uc11d\uc744 \ud574\uc57c \ud560\uc9c0&#8230; ^^<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_4-1.png\" alt=\"\" class=\"wp-image-1667\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_4-1.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_4-1-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_4-1-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n\n<p>\ubcfc\ub968\uc744 \ucd5c\ub300\ub85c \ud558\uace0 Bode plot\uc744 \uadf8\ub824\ubd05\ub2c8\ub2e4. \uc570\ud504 \uce21\uc815\uc5d0\uc120 \ub354\ubbf8 \uc800\ud56d\uc744 \uc5f0\uacb0\ud558\uace0 \ubcfc\ub968\uc744 \ucd5c\ub300\ub85c \ub193\uace0 \uce21\uc815\ud558\ub294\uac8c \uc815\uc11d\uc778\ub370 Vp-p 1V \uc785\ub825, 12V \uc804\uc6d0 \ud658\uacbd\uc5d0\uc11c \uc81c\ub300\ub85c \ub41c \uadf8\ub798\ud504\uac00 \uc548 \ub098\uc635\ub2c8\ub2e4. <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_5-1.png\" alt=\"\" class=\"wp-image-1668\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_5-1.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_5-1-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_5-1-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n\n<p>\ubcfc\ub968\uc744 \uc808\ubc18\uc73c\ub85c \uc904\uc5ec \ubd24\uc2b5\ub2c8\ub2e4\ub9cc, \uc0b4\uc9dd anomaly\uac00 \uc788\ub294 \uac83\uc73c\ub85c \ubcf4\uc785\ub2c8\ub2e4. \uac70\uc758 1\/4\uae4c\uc9c0 \uc904\uc5ec\ubd05\ub2c8\ub2e4.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_6-1.png\" alt=\"\" class=\"wp-image-1669\" srcset=\"https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_6-1.png 800w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_6-1-150x94.png 150w, https:\/\/www.kyu.kr\/wp-content\/uploads\/2022\/04\/scope_6-1-768x483.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n\n<p>\ub9ce\uc774 \ub9e4\ub048\ud574 \uc84c\uc9c0\ub9cc \uc808\ubc18 \ubcfc\ub968\ud558\uace0 \ub300\uac15 \ube44\uc2b7\ud558\ub124\uc694. 5KHz\uae4c\uc9c0\ub294 \uc57d 18dB gain\uc744 \uc720\uc9c0\ud558\ub294\ub370 \uadf8 \uc774\ud6c4\ub85c\ub294 gain\uc774 \uc904\uc5b4\ub4ed\ub2c8\ub2e4. \uc911\uc800\uc5ed\uc744 \uc704\ud55c \uc570\ud504\ub77c\uace0 \ud574\uc57c \ud560\uae4c\uc694? \uc0ac\uc2e4 \ub178\ub798\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ub300\ubd80\ubd84\uc758 \uc9c4\ub3d9\uc218\ub294 \ud3c9\ud0c4\ud55c \ubd80\ubd84\uc5d0 \ub4e4\uc5b4\uc640 \uc788\uae30\ub294 \ud558\uc8e0.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ub2e4\ub978 \uae00\uc5d0 \uc18c\uac1c\ud55c TI\uc758 TPA3116D2 \uce69\uc774 \uc0ac\uc6a9\ub41c Class D \uc570\ud504\uc785\ub2c8\ub2e4. \uc624\uc2e4\ub85c\uc2a4\ucf54\ud504\uac00 \uc788\uae30 \ub54c\ubb38\uc5d0 \uce21\uc815\uc744 \ud574\ubd24\uc2b5\ub2c8\ub2e4. \ub178\ub780\uc0c9\uc774 \uc785\ub825\uc73c\ub85c \uc900 1KHz sine wave, \ub179\uc0c9\uc774 8\uc634 \ub354\ubbf8 \uc800\ud56d\uc5d0 \uc5f0\uacb0\ud55c \uac83\uc744 \uce21\uc815\ud55c \ucd9c\ub825\uc785\ub2c8\ub2e4. \uc544\ub0a0\ub85c\uadf8 \uc570\ud504\uc5d0\uc11c\ub294 \uc544\ubb34\ud2bc sine wave\uac00 \uce21\uc815\ub418\ub294\ub370 \ub514\uc9c0\ud138 \uc570\ud504\uc5d0\uc11c\ub294 \uc0c1\ub2f9\ud788 \ub3c5\ud2b9\ud55c \ud30c\ud615\uc774 \ub098\uc635\ub2c8\ub2e4. \uc99d\ud3ed \ubc29\uc2dd\uc774 PWM \ubc29\uc2dd\uc774\uae30 \ub54c\ubb38\uc774\ub77c\uace0 \ub4e4\uc740 \uac83 \uac19\uc2b5\ub2c8\ub2e4. \uc57d\uac04 \ud655\ub300\ub97c \ud574\ubd24\uc2b5\ub2c8\ub2e4. \ucd18\ucd18\ud558\uac8c \uc62c\ub77c\uac00\ub294 \ud30c\ud615\uc774 &hellip;<br \/><a href=\"https:\/\/www.kyu.kr\/?p=1663\" class=\"more-link pen_button pen_element_default pen_icon_arrow_double\"><span class=\"screen-reader-text\">\uc7ac\ubbf8\ub85c \ud574\ubcf4\ub294 Class D \uc570\ud504 \uce21\uc815<\/span> \ub354\ubcf4\uae30<\/a><\/p>\n","protected":false},"author":1,"featured_media":1664,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[121,134,133],"class_list":["post-1663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-108","tag-bode-plot","tag-pwm","tag-tpa3116d2"],"_links":{"self":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/1663","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=1663"}],"version-history":[{"count":1,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/1663\/revisions"}],"predecessor-version":[{"id":1670,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/1663\/revisions\/1670"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/media\/1664"}],"wp:attachment":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1663"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1663"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}