{"id":8426,"date":"2026-02-25T23:35:29","date_gmt":"2026-02-25T14:35:29","guid":{"rendered":"https:\/\/now0930.pe.kr\/wordpress\/?p=8426"},"modified":"2026-10-04T11:36:02","modified_gmt":"2026-10-04T02:36:02","slug":"%ed%98%84%eb%8c%80%ec%a0%84%eb%a0%a5%ec%a0%84%ec%9e%90%ea%b3%b5%ed%95%99-5%ec%9e%a5","status":"publish","type":"post","link":"https:\/\/now0930.pe.kr\/wordpress\/%ed%98%84%eb%8c%80%ec%a0%84%eb%a0%a5%ec%a0%84%ec%9e%90%ea%b3%b5%ed%95%99-5%ec%9e%a5\/","title":{"rendered":"\ud604\ub300\uc804\ub825\uc804\uc790\uacf5\ud559, 5\uc7a5"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"968\" height=\"1280\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-21.png\" alt=\"\" class=\"wp-image-8427\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-21.png 968w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-21-768x1016.png 768w\" sizes=\"auto, (max-width: 968px) 100vw, 968px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1043\" height=\"1280\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-22.png\" alt=\"\" class=\"wp-image-8428\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-22.png 1043w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-22-768x943.png 768w\" sizes=\"auto, (max-width: 1043px) 100vw, 1043px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"434\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-26.png\" alt=\"\" class=\"wp-image-8432\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-26.png 843w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-26-768x395.png 768w\" sizes=\"auto, (max-width: 843px) 100vw, 843px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"997\" height=\"1280\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-23.png\" alt=\"\" class=\"wp-image-8429\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-23.png 997w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-23-768x986.png 768w\" sizes=\"auto, (max-width: 997px) 100vw, 997px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"632\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-24.png\" alt=\"\" class=\"wp-image-8430\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-24.png 1280w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-24-768x379.png 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1053\" height=\"1280\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-27.png\" alt=\"\" class=\"wp-image-8435\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-27.png 1053w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-27-768x934.png 768w\" sizes=\"auto, (max-width: 1053px) 100vw, 1053px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"934\" height=\"1280\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-28.png\" alt=\"\" class=\"wp-image-8436\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-28.png 934w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-28-768x1053.png 768w\" sizes=\"auto, (max-width: 934px) 100vw, 934px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"859\" height=\"1044\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-25.png\" alt=\"\" class=\"wp-image-8431\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-25.png 859w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/image-25-768x933.png 768w\" sizes=\"auto, (max-width: 859px) 100vw, 859px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1\ufe0f\u20e3 AC-AC, 3\uc0c1 \uc704\uc0c1 \uc81c\uc5b4\uae30<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc6d0\ub9ac<\/strong>: SCR\uc744 \uc0ac\uc6a9\ud574 \uc785\ub825 AC\uc758 \uc77c\ubd80\ub9cc \uc804\ub2ec \u2192 \uc810\ud638\uac01(\u03b1)\uc5d0 \ub530\ub77c \ucd9c\ub825 \uc804\uc555 \ud06c\uae30 \uc81c\uc5b4.<\/li>\n\n\n\n<li><strong>\ud2b9\uc9d5<\/strong>: \ub2e8\uc21c \uad6c\uc870, \uc804\uc555 \uc81c\uc5b4 \uac00\ub2a5.<\/li>\n\n\n\n<li><strong>\ub2e8\uc810<\/strong>: \ucd9c\ub825 \ud30c\ud615\uc5d0 \uace0\uc870\ud30c \ub9ce\uc74c, \uc5ed\ub960 \uc800\ud558.<\/li>\n\n\n\n<li><strong>\uc751\uc6a9<\/strong>: \uc870\uba85 \ubc1d\uae30 \uc870\uc808, \ub2e8\uc21c \ubaa8\ud130 \uc81c\uc5b4.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2\ufe0f\u20e3 AC-AC PWM \ucd08\ud37c<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc6d0\ub9ac<\/strong>: H-\ube0c\ub9ac\uc9c0 \uc2a4\uc704\uce58\ub97c \ube60\ub974\uac8c on\/off \u2192 \ud384\uc2a4\ud3ed(PWM)\uc73c\ub85c \ud3c9\uade0 \uc804\uc555 \uc81c\uc5b4.<\/li>\n\n\n\n<li><strong>\ud2b9\uc9d5<\/strong>: \ucd9c\ub825 \ud30c\ud615\uc774 \uc815\ud604\ud30c\uc5d0 \uac00\uae4c\uc6c0, \uc804\ub825 \ud488\uc9c8 \uc6b0\uc218.<\/li>\n\n\n\n<li><strong>\ub2e8\uc810<\/strong>: \uc2a4\uc704\uce6d \uc190\uc2e4, \uc81c\uc5b4 \ud68c\ub85c \ubcf5\uc7a1.<\/li>\n\n\n\n<li><strong>\uc751\uc6a9<\/strong>: \uc815\ubc00 \ubaa8\ud130 \uc81c\uc5b4, UPS, \uc804\ub825 \ubcc0\ud658 \uc7a5\uce58.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3\ufe0f\u20e3 \uc0ac\uc774\ud074\ub85c\ucee8\ubc84\ud130<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc6d0\ub9ac<\/strong>: \uc785\ub825 AC\ub97c \uc0ac\uc774\ub9ac\uc2a4\ud130\ub85c \uc798\ub77c\ub0b4\uace0 \uc774\uc5b4\ubd99\uc5ec \ub0ae\uc740 \uc8fc\ud30c\uc218 AC \uc0dd\uc131.<\/li>\n\n\n\n<li><strong>\ud2b9\uc9d5<\/strong>: \ucd9c\ub825 \uc8fc\ud30c\uc218\ub97c \ub0ae\ucd9c \uc218 \uc788\uc74c, DC \ub9c1\ud06c \ubd88\ud544\uc694.<\/li>\n\n\n\n<li><strong>\ub2e8\uc810<\/strong>: \ucd9c\ub825 \ud30c\ud615\uc5d0 \uace0\uc870\ud30c \ub9ce\uc74c, \uc81c\uc5b4 \ubcf5\uc7a1.<\/li>\n\n\n\n<li><strong>\uc751\uc6a9<\/strong>: \ub300\ud615 \uc0b0\uc5c5\uc6a9 \ubaa8\ud130 \uc800\uc18d \uc6b4\uc804 (\uc81c\ucca0\uc18c \uc555\uc5f0\uae30, \ubc1c\uc804\uc18c \ud38c\ud504 \ub4f1).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4\ufe0f\u20e3 \ub9e4\ud2b8\ub9ad\uc2a4 \ucee8\ubc84\ud130<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc6d0\ub9ac<\/strong>: \uc785\ub825 AC\ub97c \uc591\ubc29\ud5a5 \uc2a4\uc704\uce58 \ub9e4\ud2b8\ub9ad\uc2a4\ub85c \uc9c1\uc811 \ucd9c\ub825 AC\ub85c \ubcc0\ud658.<\/li>\n\n\n\n<li><strong>\ud2b9\uc9d5<\/strong>: DC \ub9c1\ud06c \ubd88\ud544\uc694, \ucd9c\ub825 \uc8fc\ud30c\uc218\u00b7\uc804\uc555\u00b7\uc704\uc0c1 \uc790\uc720\ub86d\uac8c \uc81c\uc5b4, \uc591\ubc29\ud5a5 \uc804\ub825 \ud750\ub984 \uac00\ub2a5.<\/li>\n\n\n\n<li><strong>\ub2e8\uc810<\/strong>: \uc2a4\uc704\uce58 \uc218 \ub9ce\uc74c, \uc81c\uc5b4 \uc54c\uace0\ub9ac\uc998 \ubcf5\uc7a1, \ucd9c\ub825 \uc804\uc555 \ube44\uc728 \uc81c\ud55c.<\/li>\n\n\n\n<li><strong>\uc751\uc6a9<\/strong>: \uace0\uc131\ub2a5 \ubaa8\ud130 \ub4dc\ub77c\uc774\ube0c, \uc7ac\uc0dd\uc5d0\ub108\uc9c0 \uc778\ubc84\ud130, \ud56d\uacf5\u00b7\uc804\uae30\ucc28 \uc804\ub825 \ubcc0\ud658.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>\uc804\uccb4 \uc694\uc57d<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc704\uc0c1 \uc81c\uc5b4\uae30<\/strong>: \ub2e8\uc21c\ud788 \uc804\uc555 \ud06c\uae30 \uc81c\uc5b4.<\/li>\n\n\n\n<li><strong>PWM \ucd08\ud37c<\/strong>: \ud384\uc2a4\ud3ed\uc73c\ub85c \ud3c9\uade0 \uc804\uc555 \uc81c\uc5b4 \u2192 \uc815\ud604\ud30c \ucd9c\ub825 \uac00\ub2a5.<\/li>\n\n\n\n<li><strong>\uc0ac\uc774\ud074\ub85c\ucee8\ubc84\ud130<\/strong>: \uc785\ub825\uc744 \uc798\ub77c\ub0b4\uc5b4 \ub0ae\uc740 \uc8fc\ud30c\uc218 \ucd9c\ub825.<\/li>\n\n\n\n<li><strong>\ub9e4\ud2b8\ub9ad\uc2a4 \ucee8\ubc84\ud130<\/strong>: \uc785\ub825\uc744 \uc9c1\uc811 \ubcc0\ud658 \u2192 \uc8fc\ud30c\uc218\u00b7\uc804\uc555 \uc790\uc720 \uc81c\uc5b4, \uc591\ubc29\ud5a5 \uac00\ub2a5.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9de\uc544\uc694, \ub300\uc6d0\ub2d8\uc774 \ub0a0\uce74\ub86d\uac8c \uc9da\uc73c\uc168\uc5b4\uc694. \ubc29\uae08 \ubcf8 \uc2dd\uc740 \uc870\uae08 \ub354 \uc8fc\uc758 \uae4a\uac8c \ub530\uc838\uc57c \ud569\ub2c8\ub2e4. \uc65c\ub0d0\ud558\uba74 <strong>\ucd9c\ub825 \uc0c1\uc804\uc555\uc744 \uc785\ub825 \uc804\uc555\uc73c\ub85c \ud45c\ud604\ud558\ub294 \uacfc\uc815<\/strong>\uc5d0\uc11c \ub2e8\uc790\uc804\uc555\uacfc \uc0c1\uc804\uc555\uc744 \ud63c\ub3d9\ud558\uae30 \uc27d\uae30 \ub54c\ubb38\uc774\uc5d0\uc694.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/\ub9e4\ud2b8\ub9ad\uc2a4_\ucee8\ubc84\ud130.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"\ub9e4\ud2b8\ub9ad\uc2a4_\ucee8\ubc84\ud130\uc758 \uc0bd\uc785.\"><\/object><a id=\"wp-block-file--media-966b046c-92cb-4e30-bbac-2440267705b3\" href=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/\ub9e4\ud2b8\ub9ad\uc2a4_\ucee8\ubc84\ud130.pdf\">\ub9e4\ud2b8\ub9ad\uc2a4_\ucee8\ubc84\ud130<\/a><a href=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2026\/02\/\ub9e4\ud2b8\ub9ad\uc2a4_\ucee8\ubc84\ud130.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-966b046c-92cb-4e30-bbac-2440267705b3\">\ub2e4\uc6b4\ub85c\ub4dc<\/a><\/div>\n\n\n\n&#8220;`html\n<div class=\"chapter19-wide\">\n\n  <h1>\ud604\ub300\uc804\ub825\uc804\uc790\uacf5\ud559 5\uc7a5<\/h1>\n\n  <div class=\"subtitle\">\n    AC-AC Converter \u00b7 Phase Controller \u00b7 PWM AC Chopper \u00b7 Cycloconverter \u00b7 Matrix Converter\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>1. AC-AC Converter<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uccab \ubc88\uc9f8 \uc774\ubbf8\uc9c0\uc5d0\uc11c\ub294 5\uc7a5\uc758 \uc8fc\uc81c\ub97c\n      AC \u2192 AC Converter\ub85c \uc815\ub9ac\ud55c\ub2e4.\n    <\/p>\n\n    <p>\n      \ub300\ud45c \ubc29\uc2dd\uc73c\ub85c \ub2e4\uc74c \ud56d\ubaa9\uc744 \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <ul>\n      <li>\uc704\uc0c1\uc81c\uc5b4<\/li>\n      <li>PWM<\/li>\n      <li>Cycloconverter<\/li>\n      <li>Matrix Converter<\/li>\n    <\/ul>\n\n    <div class=\"formula\">\n      AC Input\n      \u2192\n      AC-AC Converter\n      \u2192\n      AC Output\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>2. AC \uc804\uc555\uc758 \uac00\ubcc0<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc6d0\ubcf8\uc5d0\uc11c\ub294 AC \uc804\uc555\uc758 \ud06c\uae30\ub97c\n      \uac00\ubcc0\ud558\ub294 \uac83\uc774 \uae30\ubcf8 \ubaa9\uc801\uc774\ub77c\uace0 \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      AC Voltage\n      \u2192\n      Variable Output Voltage\n    <\/div>\n\n    <p>\n      \uc704\uc0c1\uc81c\uc5b4\uc5d0\uc11c\ub294 SCR \ub610\ub294 Triac\uc744,\n      \uc644\uc804\uc81c\uc5b4 Switch\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uc5d0\ub294\n      PWM \ubc29\uc2dd\uc744 \uc5f0\uacb0\ud55c\ub2e4.\n    <\/p>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>3. \ub2e8\uc0c1 AC \uc804\uc555 \uc81c\uc5b4\uae30<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uccab \ubc88\uc9f8 \ud544\uae30\uc5d0\ub294\n      \ub2e8\uc0c1 AC \uc804\uc555 \uc81c\uc5b4\uae30\uc758 \uae30\ubcf8\ud68c\ub85c\uac00 \uadf8\ub824\uc838 \uc788\ub2e4.\n    <\/p>\n\n    <pre>\n                 SCR \/ Switch\n      Vi ~ \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500 Vo\n                          \u2502\n                         RL\n                          \u2502\n      \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n    <\/pre>\n\n    <p>\n      \uc785\ub825 AC\uc758 \uc77c\ubd80 \uad6c\uac04\ub9cc \ubd80\ud558\ub85c \uc804\ub2ec\ud558\uc5ec\n      \ucd9c\ub825\uc804\uc555\uc758 \uc2e4\ud6a8\uac12\uc744 \uc870\uc808\ud55c\ub2e4.\n    <\/p>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>4. SCR\uc758 \ub3c4\ud1b5 \uc81c\uc5b4<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      SCR\uc740 \uc810\ud638\uac01\uc5d0 \ub530\ub77c\n      \ub3c4\ud1b5 \uc2dc\uc791\uc2dc\uc810\uc744 \uacb0\uc815\ud558\ub294 Switch\ub85c \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      Firing Angle \u03b1\n      \u2192\n      Conduction Start\n    <\/div>\n\n    <p>\n      \uc804\ub958\uac00 0\uc774 \ub418\ub294 \uc2dc\uc810\uc5d0\uc11c\ub294\n      SCR\uc774 OFF\ub418\ub294 \ud30c\ud615\uc774 \ud568\uaed8 \uadf8\ub824\uc838 \uc788\ub2e4.\n    <\/p>\n\n    <div class=\"memory\">\n      <strong>\n        AC \uc704\uc0c1\uc81c\uc5b4\ub294\n        \uc785\ub825 \uc815\ud604\ud30c \uc804\uccb4\ub97c \uc804\ub2ec\ud558\uc9c0 \uc54a\uace0\n        \uc810\ud638 \uc774\ud6c4\uc758 \uc77c\ubd80 \uad6c\uac04\ub9cc \ubd80\ud558\ub85c \uc804\ub2ec\ud55c\ub2e4.\n      <\/strong>\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>5. 3\uc0c1 AC \uc804\uc555 \uc81c\uc5b4\uae30<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \ub450 \ubc88\uc9f8 \uc774\ubbf8\uc9c0\ub294\n      \uc704\uc0c1\uc81c\uc5b4 \ubc29\uc2dd\uc758 3\uc0c1 AC \uc804\uc555 \uc81c\uc5b4\uae30\ub97c \uc815\ub9ac\ud55c\ub2e4.\n    <\/p>\n\n    <p>\n      \uc785\ub825 3\uc0c1 \uc804\uc555\uc744\n      V<sub>A<\/sub>, V<sub>B<\/sub>, V<sub>C<\/sub>,\n      \ucd9c\ub825 \uc804\uc555\uc744\n      V<sub>a<\/sub>, V<sub>b<\/sub>, V<sub>c<\/sub>\ub85c \ud45c\uc2dc\ud55c\ub2e4.\n    <\/p>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>6. 3\uc0c1 \uc804\uc555\uc758 Switching \ud45c\ud604<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc6d0\ubcf8\uc5d0\uc11c\ub294 \uac01 \uc0c1\uc758 Switch \uc0c1\ud0dc\ub97c\n      a, b, c\ub85c \ub098\ud0c0\ub0b4\uace0,\n      \uc785\ub825\uc804\uc555\uacfc \ucd9c\ub825\uc804\uc555\uc758 \uad00\uacc4\ub97c\n      Matrix \ud615\ud0dc\ub85c \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      [\n      V_a\n      ;\n      V_b\n      ;\n      V_c\n      ]\n      =\n      1\/2\n      [\n      a   -b   -c\n      ;\n      -a   b   -c\n      ;\n      -a  -b    c\n      ]\n      [\n      V_A\n      ;\n      V_B\n      ;\n      V_C\n      ]\n    <\/div>\n\n    <div class=\"warning\">\n      <strong>\n        \uc774 \ud589\ub82c\uc2dd\uc740 \ub450 \ubc88\uc9f8 \uc190\ud544\uae30 \uc774\ubbf8\uc9c0\uc5d0 \uae30\ub85d\ub41c \ud615\ud0dc\ub97c\n        \uadf8\ub300\ub85c \ubc18\uc601\ud55c \uac83\uc774\ub2e4.\n        \ub4a4\uc758 Matrix Converter \uc0c1\uc804\uc555 \uc720\ub3c4\uc640\ub294\n        \ubcc4\uac1c\uc758 \ud544\uae30\uc774\ub2e4.\n      <\/strong>\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>7. \u03b1 = 0\u00b0<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc810\ud638\uac01 \u03b1\uac00 0\u00b0\uc774\uba74\n      \ubaa8\ub4e0 Switch\uac00 \uc989\uc2dc \ub3c4\ud1b5\ud558\ub294\n      \uc644\uc804\ub3c4\ud1b5 \uc0c1\ud0dc\ub85c \uae30\ub85d\ub418\uc5b4 \uc788\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      \u03b1 = 0\u00b0\n      \u2192\n      Full Conduction\n    <\/div>\n\n    <p>\n      \uc138 \ubc88\uc9f8 \uc774\ubbf8\uc9c0\uc758 \uc67c\ucabd \ud30c\ud615\uc5d0\uc11c\ub294\n      \ucd9c\ub825 \uc0c1\uc804\uc555\uc774 \uc785\ub825 \uc0c1\uc804\uc555\uacfc \uac19\uc740 \ud615\ud0dc\ub85c \ub098\ud0c0\ub09c\ub2e4.\n    <\/p>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>8. \u03b1 = 30\u00b0<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc138 \ubc88\uc9f8 \uc774\ubbf8\uc9c0\uc758 \uc624\ub978\ucabd\uc740\n      \u03b1 = 30\u00b0\uc778 R \ubd80\ud558\uc758 \ucd9c\ub825\ud30c\ud615\uc774\ub2e4.\n    <\/p>\n\n    <p>\n      \uac01 \uc0c1 Switch\uc758 ON\/OFF \uc0c1\ud0dc\uc5d0 \ub530\ub77c\n      \ucd9c\ub825\uc804\uc555\uc774\n      \uc785\ub825 \uc0c1\uc804\uc555 \ub610\ub294 \uc120\uac04\uc804\uc555\uc758 \uc77c\ubd80\ub85c \ub098\ud0c0\ub098\ub294\n      \uad6c\uac04\uc774 \uadf8\ub824\uc838 \uc788\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      \u03b1 \uc99d\uac00\n      \u2192\n      Conduction Interval \ubcc0\ud654\n      \u2192\n      Output RMS Voltage \ubcc0\ud654\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>9. 30\u00b0 \uac04\uaca9 Switching \uc0c1\ud0dc<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \ub450 \ubc88\uc9f8 \ud544\uae30\uc5d0\uc11c\ub294\n      0\u00b0~150\u00b0 \uad6c\uac04\uc744 30\u00b0 \uac04\uaca9\uc73c\ub85c \ub098\ub204\uc5b4\n      a, b, c Switch\uc758 ON\/OFF \uc0c1\ud0dc\ub97c \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <ul>\n      <li>0\u00b0~30\u00b0<\/li>\n      <li>30\u00b0~60\u00b0<\/li>\n      <li>60\u00b0~90\u00b0<\/li>\n      <li>90\u00b0~120\u00b0<\/li>\n      <li>120\u00b0~150\u00b0<\/li>\n    <\/ul>\n\n    <p>\n      \uac01 \uad6c\uac04\ub9c8\ub2e4 \ub3c4\ud1b5\ud558\ub294 \uc0c1\uc758 \uc870\ud569\uc774 \ub2ec\ub77c\uc9c0\uba70\n      \uadf8\uc5d0 \ub530\ub77c \ucd9c\ub825 \uc0c1\uc804\uc555\ub3c4 \ub2ec\ub77c\uc9c4\ub2e4.\n    <\/p>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>10. 3\uc0c1 \uc704\uc0c1\uc81c\uc5b4 \ucd9c\ub825\ud30c\ud615<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uad50\uc7ac \uc774\ubbf8\uc9c0\uc5d0\ub294\n      \uc644\uc804\uc81c\uc5b4 3\uc0c1 AC \uc804\uc555 \uc81c\uc5b4\uae30\uc758\n      Mode 1 \ucd9c\ub825\uc804\uc555 \ud30c\ud615\uc744 \ube44\uad50\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"table-wrap\">\n      <table>\n        <thead>\n          <tr>\n            <th>\uc870\uac74<\/th>\n            <th>\ucd9c\ub825\ud30c\ud615<\/th>\n          <\/tr>\n        <\/thead>\n        <tbody>\n          <tr>\n            <td><strong>\u03b1f = 0\u00b0<\/strong><\/td>\n            <td>\uc785\ub825 \uc0c1\uc804\uc555\uacfc \ub3d9\uc77c\ud55c \uc815\ud604\ud30c \ud615\ud0dc<\/td>\n          <\/tr>\n          <tr>\n            <td><strong>\u03b1f = 30\u00b0<\/strong><\/td>\n            <td>Switching \uc0c1\ud0dc\uc5d0 \ub530\ub77c \uad6c\uac04\ubcc4 \uc804\uc555\uc774 \ubcc0\uacbd<\/td>\n          <\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>11. PWM AC \uc804\uc555 \uc81c\uc5b4\uae30<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \ub124 \ubc88\uc9f8 \ud544\uae30\uc5d0\uc11c\ub294\n      PWM AC \uc804\uc555 \uc81c\uc5b4\uae30\ub97c\n      AC Chopper\ub85c \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      PWM AC Voltage Controller\n      =\n      AC Chopper\n    <\/div>\n\n    <p>\n      \ud2b9\uc9d5\uc73c\ub85c \ub2e4\uc74c \ub0b4\uc6a9\uc774 \uc801\ud600 \uc788\ub2e4.\n    <\/p>\n\n    <ul>\n      <li>\uc785\ub825\uc5ed\ub960 \uac1c\uc120<\/li>\n      <li>\uc81c\uc5b4\ud2b9\uc131 \uac1c\uc120<\/li>\n      <li>\ucd9c\ub825\uc804\uc555 \ud2b9\uc131 \uac1c\uc120<\/li>\n    <\/ul>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>12. PWM AC Chopper \ud68c\ub85c<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc6d0\ubcf8\uc5d0\ub294 \uc785\ub825\uce21 Inductor\uc640 Capacitor,\n      \uadf8\ub9ac\uace0 S1~S4\uc758 Switch\ub97c \uac16\ub294\n      AC Chopper \ud68c\ub85c\uac00 \uadf8\ub824\uc838 \uc788\ub2e4.\n    <\/p>\n\n    <pre>\n      AC Source\n          \u2502\n          L\n          \u2502\n          \u251c\u2500\u2500\u2500\u2500\u2500\u2500 C \u2500\u2500\u2500\u2500\u2500\u2500\u2510\n          \u2502               \u2502\n          \u2502       S1  S2  \u2502\n          \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524  \u251c\u2500\u2500\u2500\u2500\u2524\n                  \u2502  \u2502    Load\n                  \u251c\u2500\u2500\u2524\n                 S3  S4\n                  \u2502  \u2502\n      \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2500\n    <\/pre>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>13. S1 \u00b7 S2\uc758 \uc5ed\ud560<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc6d0\ubcf8\uc5d0\uc11c\ub294 S1, S2\ub97c \uc774\uc6a9\ud574\n      Capacitor\ub97c \ucda9\uc804\ud558\ub294 \ub3d9\uc791\uc744 \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      S1, S2\n      \u2192\n      Capacitor Charging\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>14. S3 \u00b7 S4\uc758 \uc5ed\ud560<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      S1, S2\uac00 OFF\ub418\ub294 \ub3d9\uc548\n      S3, S4\ub97c \uc774\uc6a9\ud574 \uc804\ub958\uacbd\ub85c\ub97c \ud615\uc131\ud55c\ub2e4\uace0 \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      S1,S2 OFF\n      \u2192\n      S3,S4 Current Path\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>15. Duty Ratio \uc81c\uc5b4<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      S1\uacfc S2\uc758 Duty Ratio\ub97c \uc870\uc808\ud558\uc5ec\n      \ucd9c\ub825\uc804\uc555\uc744 \uc81c\uc5b4\ud558\ub294 \uac83\uc774\n      AC Chopper\uc758 \ud575\uc2ec\uc73c\ub85c \uae30\ub85d\ub418\uc5b4 \uc788\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      Duty Ratio\n      \u2192\n      Output Voltage Control\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>16. Cycloconverter<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \ub2e4\uc12f \ubc88\uc9f8 \uc774\ubbf8\uc9c0\uc5d0\uc11c\ub294\n      Cycloconverter\ub97c \ub2e4\uc74c\uacfc \uac19\uc774 \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      Output Frequency\n      =\n      Input Frequency\uc758 \ubd84\uc218\n    <\/div>\n\n    <p>\n      \uc989 \uc785\ub825 AC\ub97c \uc9c1\uc811 \ubcc0\ud658\ud558\uc5ec\n      \ub354 \ub0ae\uc740 \uc8fc\ud30c\uc218\uc758 AC \ucd9c\ub825\uc744 \ub9cc\ub4dc\ub294 \ubc29\uc2dd\uc774\ub2e4.\n    <\/p>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>17. Cycloconverter\uc758 \uc6a9\ub3c4<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc6d0\ubcf8\uc5d0\uc11c\ub294 Cycloconverter\ub97c\n      \ub300\ud615 \uc804\ub3d9\uae30\uc758 \uc800\uc18d \uc6b4\uc804\uc5d0 \uc801\uc6a9\ud558\ub294 \ubc29\ud5a5\uc73c\ub85c \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      High-Power\n      +\n      Low-Speed AC Drive\n      \u2192\n      Cycloconverter\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>18. Matrix Converter<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc5ec\uc12f \ubc88\uc9f8\uc640 \uc77c\uacf1 \ubc88\uc9f8 \ud544\uae30\ub294\n      Matrix Converter\ub97c \ub2e4\ub8ec\ub2e4.\n    <\/p>\n\n    <p>\n      \ucd9c\ub825\ub2e8\uc790 a, b, c\ub97c\n      \uc785\ub825\ub2e8\uc790 A, B, C \uc911 \ud558\ub098\uc640\n      Switch\ub97c \ud1b5\ud574 \uc9c1\uc811 \uc5f0\uacb0\ud558\ub294 \uad6c\uc870\uc774\ub2e4.\n    <\/p>\n\n    <pre>\n      Input              Output\n\n       A \u2500\u2500\u25cb\u2500\u2500\u25cb\u2500\u2500\u25cb\u2500\u2500\u2500\u2500\u2500 a\n       B \u2500\u2500\u25cb\u2500\u2500\u25cb\u2500\u2500\u25cb\u2500\u2500\u2500\u2500\u2500 b\n       C \u2500\u2500\u25cb\u2500\u2500\u25cb\u2500\u2500\u25cb\u2500\u2500\u2500\u2500\u2500 c\n\n          Bidirectional\n             Switch\n            Matrix\n    <\/pre>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>19. Matrix Converter\uc758 Switching Matrix<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc6d0\ubcf8\uc740 \uc785\ub825\uc804\uc555\uacfc \ucd9c\ub825\ub2e8\uc790\uc804\uc555 \uad00\uacc4\ub97c\n      Switching Matrix X\ub85c \uae30\ub85d\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      [\n      v_a\n      ;\n      v_b\n      ;\n      v_c\n      ]\n      =\n      X\n      [\n      V_A\n      ;\n      V_B\n      ;\n      V_C\n      ]\n    <\/div>\n\n    <p>\n      X\uc758 \uac01 \ud589\uc740\n      \ud574\ub2f9 \ucd9c\ub825\ub2e8\uc790\uac00 \uc5b4\ub290 \uc785\ub825\uc0c1\uc5d0 \uc5f0\uacb0\ub418\ub294\uc9c0\ub97c\n      \ub098\ud0c0\ub0b4\ub294 \ud615\ud0dc\uc774\ub2e4.\n    <\/p>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>20. Switching Matrix\uc758 \uc608<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc5ec\uc12f \ubc88\uc9f8 \uc774\ubbf8\uc9c0\uc5d0\ub294\n      \ub2e4\uc74c\uacfc \uac19\uc740 Switching Matrix \uc608\uac00 \uadf8\ub824\uc838 \uc788\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      X =\n      [\n      0  1  0\n      ;\n      0  0  1\n      ;\n      1  0  0\n      ]\n    <\/div>\n\n    <p>\n      \uc774 \uc0c1\ud0dc\uc5d0\uc11c\ub294\n      \uac01 \ucd9c\ub825\uc0c1\uc774 \uc11c\ub85c \ub2e4\ub978 \uc785\ub825\uc0c1\uc5d0 \uc5f0\uacb0\ub41c\ub2e4.\n    <\/p>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>21. \uc804\ub958\uc758 \ubcc0\ud658<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc77c\uacf1 \ubc88\uc9f8 \uc774\ubbf8\uc9c0\uc5d0\uc11c\ub294\n      \uc804\ub958\ub294 \uc804\uc555\uacfc \ubc18\ub300 \ubc29\ud5a5\uc73c\ub85c\n      X\uc758 Transpose\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc5f0\uacb0\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      [\n      i_A\n      ;\n      i_B\n      ;\n      i_C\n      ]\n      =\n      X<sup>T<\/sup>\n      [\n      i_a\n      ;\n      i_b\n      ;\n      i_c\n      ]\n    <\/div>\n\n    <div class=\"memory\">\n      <strong>\n        Matrix Converter\uc5d0\uc11c\ub294\n        \ucd9c\ub825\uc804\uc555\uc740 X,\n        \uc785\ub825\uc804\ub958\ub294 X\u1d40\ub97c \uc774\uc6a9\ud558\uc5ec\n        Switching \uc0c1\ud0dc\ub97c \ud45c\ud604\ud55c\ub2e4.\n      <\/strong>\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>22. \ucd9c\ub825 \ub2e8\uc790\uc804\uc555\uacfc \uc0c1\uc804\uc555<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc77c\uacf1 \ubc88\uc9f8 \uc774\ubbf8\uc9c0\ub294\n      \ucd9c\ub825 \ub2e8\uc790\uc804\uc555 v<sub>a<\/sub>, v<sub>b<\/sub>, v<sub>c<\/sub>\uc640\n      \ucd9c\ub825 \uc0c1\uc804\uc555 v<sub>an<\/sub>, v<sub>bn<\/sub>, v<sub>cn<\/sub>\uc744\n      \uad6c\ubd84\ud55c\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      v_n\n      =\n      1\/3\n      (\n      v_a + v_b + v_c\n      )\n    <\/div>\n\n    <div class=\"formula\">\n      v<sub>an<\/sub>\n      =\n      v_a &#8211; v_n\n    <\/div>\n\n    <div class=\"formula\">\n      v<sub>bn<\/sub>\n      =\n      v_b &#8211; v_n\n    <\/div>\n\n    <div class=\"formula\">\n      v<sub>cn<\/sub>\n      =\n      v_c &#8211; v_n\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>23. \ucd9c\ub825 \uc0c1\uc804\uc555 \ud589\ub82c<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uc704 \uad00\uacc4\ub97c Matrix\ub85c \uc815\ub9ac\ud558\uba74\n      \uc6d0\ubcf8\uc5d0\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uae30\ub85d\ub418\uc5b4 \uc788\ub2e4.\n    <\/p>\n\n    <div class=\"formula\">\n      [\n      v<sub>an<\/sub>\n      ;\n      v<sub>bn<\/sub>\n      ;\n      v<sub>cn<\/sub>\n      ]\n      =\n      1\/3\n      [\n       2  -1  -1\n      ;\n      -1   2  -1\n      ;\n      -1  -1   2\n      ]\n      [\n      v_a\n      ;\n      v_b\n      ;\n      v_c\n      ]\n    <\/div>\n\n    <div class=\"memory\">\n      <strong>\n        \ucd9c\ub825 \uc0c1\uc804\uc555\uc740\n        \uc785\ub825\uc0c1\uc804\uc555\uc5d0 \ubc14\ub85c \ud589\ub82c\uc744 \uacf1\ud558\ub294 \uac83\uc774 \uc544\ub2c8\ub77c,\n        \uba3c\uc800 Switching Matrix\ub85c \ucd9c\ub825 \ub2e8\uc790\uc804\uc555\n        v_a, v_b, v_c\ub97c \uad6c\ud55c \ub4a4\n        \uc911\uc131\uc810 \uc804\uc555\uc744 \uc81c\uac70\ud558\uc5ec \uad6c\ud55c\ub2e4.\n      <\/strong>\n    <\/div>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>24. Matrix Converter\uc758 \uc804\uccb4 \uad00\uacc4<\/h2>\n\n  <div class=\"card\">\n\n    <pre>\n          Input Phase Voltage\n            [VA VB VC]^T\n                  \u2502\n                  \u25bc\n          Switching Matrix X\n                  \u2502\n                  \u25bc\n         Output Terminal Voltage\n            [va vb vc]^T\n                  \u2502\n                  \u25bc\n        Neutral Voltage vn\n       = (va+vb+vc) \/ 3\n                  \u2502\n                  \u25bc\n         Output Phase Voltage\n         [van vbn vcn]^T\n\n      Current:\n      [iA iB iC]^T\n          =\n      X^T [ia ib ic]^T\n    <\/pre>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>25. \uad50\uc7ac \uc694\uc57d \uc774\ubbf8\uc9c0<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \ub9c8\uc9c0\ub9c9 \uad50\uc7ac \uc774\ubbf8\uc9c0\ub294\n      5\uc7a5\uc744 \ub2e4\uc74c\uacfc \uac19\uc774 \uc694\uc57d\ud55c\ub2e4.\n    <\/p>\n\n    <ul>\n      <li>AC \uc804\uc555 \uc81c\uc5b4\uae30\ub294 \uc704\uc0c1\uc81c\uc5b4 \ub610\ub294 Pulse Width Modulation\uc73c\ub85c \ucd9c\ub825 \uc804\uc555\u00b7\uc804\ub958\uc758 \uc2e4\ud6a8\uac12\uc744 \uc870\uc808\ud55c\ub2e4.<\/li>\n      <li>\uc704\uc0c1\uc81c\uc5b4 AC \uc804\uc555 \uc81c\uc5b4\uae30\ub294 SCR \ub610\ub294 Triac\uc744 \uc0ac\uc6a9\ud55c\ub2e4.<\/li>\n      <li>PWM AC Chopper\ub294 \uc644\uc804\uc81c\uc5b4 Switch\ub97c \uc0ac\uc6a9\ud55c\ub2e4.<\/li>\n      <li>3\uc0c1 Cycloconverter\ub294 \uc9c1\uc811 AC-AC \ubcc0\ud658\uc744 \uc218\ud589\ud55c\ub2e4.<\/li>\n      <li>Cycloconverter\uc758 \ucd9c\ub825\uc8fc\ud30c\uc218\ub294 \uc785\ub825\uc8fc\ud30c\uc218\ubcf4\ub2e4 \ub0ae\uc740 \ubd84\uc218\uc8fc\ud30c\uc218\ub85c \uc81c\ud55c\ub41c\ub2e4.<\/li>\n      <li>Matrix Converter\ub294 \uc785\ub825\ub2e8\uc790\uc640 \ucd9c\ub825\ub2e8\uc790\ub97c \uc591\ubc29\ud5a5 Switch\ub85c \uc9c1\uc811 \uc5f0\uacb0\ud55c\ub2e4.<\/li>\n    <\/ul>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>26. \uc751\uc6a9 \ubd84\uc57c<\/h2>\n\n  <div class=\"card\">\n\n    <p>\n      \uad50\uc7ac \uc694\uc57d \uc774\ubbf8\uc9c0\uc5d0 \uae30\ub85d\ub41c \uc751\uc6a9\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n    <\/p>\n\n    <ul>\n      <li>\uc870\uba85\uacfc \uc5f4 \uc81c\uc5b4<\/li>\n      <li>\ubcc0\uc555\uae30 Tap \ubcc0\ud658<\/li>\n      <li>\uc720\ub3c4\uc804\ub3d9\uae30 Soft Starter<\/li>\n      <li>AC \uc804\ub3d9\uae30\uc758 \uc804 \uc8fc\uae30 \uc81c\uc5b4<\/li>\n      <li>Cycloconverter : \uace0\uc804\ub825 \uc800\uc18d\ub3c4 AC \uac00\ubcc0\uc18d \uad6c\ub3d9<\/li>\n      <li>Matrix Converter : \uc804\uae30\uc790\ub3d9\ucc28, \uc2e0\uc7ac\uc0dd\uc5d0\ub108\uc9c0\uc6d0-Grid Interface \ub4f1<\/li>\n    <\/ul>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>27. \ubc29\uc2dd\ubcc4 \ube44\uad50<\/h2>\n\n  <div class=\"table-wrap\">\n\n    <table>\n\n      <thead>\n        <tr>\n          <th>\ubc29\uc2dd<\/th>\n          <th>\uc81c\uc5b4 \uc6d0\ub9ac<\/th>\n          <th>\uc6d0\ubcf8 \ud2b9\uc9d5<\/th>\n        <\/tr>\n      <\/thead>\n\n      <tbody>\n\n        <tr>\n          <td><strong>Phase Controller<\/strong><\/td>\n          <td>SCR\/Triac \uc810\ud638\uac01 \uc81c\uc5b4<\/td>\n          <td>AC \uc804\uc555 \uc2e4\ud6a8\uac12 \uc870\uc815<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>PWM AC Chopper<\/strong><\/td>\n          <td>\uc644\uc804\uc81c\uc5b4 Switch Duty Ratio<\/td>\n          <td>\uc785\ub825\uc5ed\ub960\u00b7\uc81c\uc5b4\u00b7\ucd9c\ub825\uc804\uc555 \ud2b9\uc131 \uac1c\uc120<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>Cycloconverter<\/strong><\/td>\n          <td>\uc785\ub825 AC \uc9c1\uc811 \uc870\ud569<\/td>\n          <td>\uc785\ub825\ubcf4\ub2e4 \ub0ae\uc740 \ucd9c\ub825\uc8fc\ud30c\uc218<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>Matrix Converter<\/strong><\/td>\n          <td>\uc785\ub825-\ucd9c\ub825 \uc9c1\uc811 Switching Matrix<\/td>\n          <td>\uc591\ubc29\ud5a5 Switch \uc0ac\uc6a9, \uc9c1\uc811 AC-AC \ubcc0\ud658<\/td>\n        <\/tr>\n\n      <\/tbody>\n\n    <\/table>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>28. 5\uc7a5 \uc804\uccb4 \ud750\ub984<\/h2>\n\n  <div class=\"card\">\n\n    <pre>\n                      AC-AC Converter\n                            \u2502\n          \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u253c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n          \u25bc                 \u25bc                  \u25bc\n     Voltage Control    Frequency Control   Direct Matrix\n          \u2502                 \u2502                  \u2502\n     \u250c\u2500\u2500\u2500\u2500\u2534\u2500\u2500\u2500\u2500\u2510            \u25bc                  \u25bc\n     \u25bc         \u25bc       Cycloconverter     Matrix Converter\n  Phase      PWM              \u2502                  \u2502\n Control   Chopper            \u2502                  \u25bc\n     \u2502         \u2502              \u2502          Switching Matrix X\n SCR\/Triac   S1~S4            \u2502                  \u2502\n     \u2502         \u2502              \u25bc                  \u25bc\n Firing    Duty Ratio    Low-Frequency AC    va,vb,vc\n Angle        \u2502                                  \u2502\n     \u2502         \u25bc                                  \u25bc\n     \u25bc     Output RMS                       Neutral vn\n Output      Control                             \u2502\n RMS                                            \u25bc\n                                          van,vbn,vcn\n    <\/pre>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <h2>29. \uc774\ubbf8\uc9c0 \ud575\uc2ec \uc815\ub9ac<\/h2>\n\n  <div class=\"table-wrap\">\n\n    <table>\n\n      <thead>\n        <tr>\n          <th>\ud56d\ubaa9<\/th>\n          <th>\uc6d0\ubcf8 \ub0b4\uc6a9<\/th>\n        <\/tr>\n      <\/thead>\n\n      <tbody>\n\n        <tr>\n          <td><strong>5\uc7a5 \uc8fc\uc81c<\/strong><\/td>\n          <td>AC \u2192 AC Converter<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>\uc704\uc0c1\uc81c\uc5b4 \uc18c\uc790<\/strong><\/td>\n          <td>SCR, Triac<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>\uc81c\uc5b4\ub7c9<\/strong><\/td>\n          <td>Firing Angle \u03b1<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>3\uc0c1 AC Controller<\/strong><\/td>\n          <td>\uac01 \uc0c1 Switch \uc0c1\ud0dc\uc5d0 \ub530\ub77c \ucd9c\ub825\uc804\uc555 \uacb0\uc815<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>PWM AC Chopper<\/strong><\/td>\n          <td>\uc644\uc804\uc81c\uc5b4 Switch + Duty Ratio<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>PWM \ud2b9\uc9d5<\/strong><\/td>\n          <td>\uc785\ub825\uc5ed\ub960, \uc81c\uc5b4\ud2b9\uc131, \ucd9c\ub825\uc804\uc555 \ud2b9\uc131 \uac1c\uc120<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>Cycloconverter<\/strong><\/td>\n          <td>\ucd9c\ub825\uc8fc\ud30c\uc218\ub294 \uc785\ub825\uc8fc\ud30c\uc218\uc758 \ubd84\uc218<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>Matrix Converter Voltage<\/strong><\/td>\n          <td>vout = X Vin<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>Matrix Converter Current<\/strong><\/td>\n          <td>Iin = X\u1d40 Iout<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>Neutral Voltage<\/strong><\/td>\n          <td>vn=(va+vb+vc)\/3<\/td>\n        <\/tr>\n\n        <tr>\n          <td><strong>Output Phase Voltage<\/strong><\/td>\n          <td>[van vbn vcn]\u1d40 = (1\/3)[2 -1 -1; -1 2 -1; -1 -1 2][va vb vc]\u1d40<\/td>\n        <\/tr>\n\n      <\/tbody>\n\n    <\/table>\n\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <div class=\"warning\">\n    <strong>\n      \uc774 HTML\uc740 WordPress \ud398\uc774\uc9c0 \ubcf8\ubb38\uc758 \uc124\uba85\uc744 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uace0,\n      \ud398\uc774\uc9c0\uc5d0 \ud3ec\ud568\ub41c \uc77c\ubc18 \uc774\ubbf8\uc9c0 8\uc7a5\ub9cc\n      \uc2dc\uac01 \ud310\ub3c5\ud558\uc5ec \uc791\uc131\ud588\ub2e4.\n\n      \uc774 \ud398\uc774\uc9c0\uc5d0\ub294 NeoStudio PDF\uac00 \uc5c6\ub2e4.\n\n      \ud398\uc774\uc9c0\uc5d0 \uc5f0\uacb0\ub41c &#8216;\ub9e4\ud2b8\ub9ad\uc2a4_\ucee8\ubc84\ud130.pdf&#8217;\ub294\n      NeoStudio\uac00 \uc544\ub2cc \ubcc4\ub3c4 \uc815\ub9ac\ubb38\uc11c\uc774\ubbc0\ub85c\n      \ud604\uc7ac \ubcc0\ud658 \uae30\uc900\uc5d0 \ub530\ub77c \uc81c\uc678\ud558\uc600\ub2e4.\n\n      \uc774\ubbf8\uc9c0 1~3\uc740\n      \ub2e8\uc0c1\/3\uc0c1 AC \uc704\uc0c1\uc81c\uc5b4,\n      SCR \uc810\ud638\uac01,\n      3\uc0c1 Switch \uc0c1\ud0dc\uc640 \ucd9c\ub825\ud30c\ud615\uc744 \uae30\ub85d\ud55c\ub2e4.\n\n      \uc774\ubbf8\uc9c0 4\ub294\n      PWM AC Chopper \ud68c\ub85c\uc640\n      S1~S4\uc758 \ub3d9\uc791,\n      Duty Ratio\uc5d0 \ub530\ub978 \ucd9c\ub825\uc804\uc555 \uc81c\uc5b4\ub97c \uae30\ub85d\ud55c\ub2e4.\n\n      \uc774\ubbf8\uc9c0 5\ub294\n      Cycloconverter\uc758 \uc815\uc758\uc640\n      \uc800\uc8fc\ud30c\u00b7\ub300\ud615\uc804\ub3d9\uae30 \uc801\uc6a9\uc744 \uae30\ub85d\ud55c\ub2e4.\n\n      \uc774\ubbf8\uc9c0 6~7\uc740\n      Matrix Converter\uc758 Switching Matrix X,\n      \uc804\uc555\ubcc0\ud658,\n      \uc804\ub958\ubcc0\ud658 X\u1d40,\n      \ucd9c\ub825 \uc911\uc131\uc810\uacfc \uc0c1\uc804\uc555 \ubcc0\ud658\uc2dd\uc744 \uae30\ub85d\ud55c\ub2e4.\n\n      \uc774\ubbf8\uc9c0 8\uc740 \uad50\uc7ac 5.6 \uc694\uc57d\uc73c\ub85c,\n      AC \uc804\uc555 \uc81c\uc5b4\uae30,\n      Cycloconverter,\n      Matrix Converter\uc758 \ud2b9\uc131\uacfc \uc751\uc6a9\ubd84\uc57c\ub97c \uc815\ub9ac\ud55c\ub2e4.\n\n      \ud2b9\ud788 Matrix Converter\uc5d0\uc11c\n      [VA,VB,VC] \uc785\ub825\uc804\uc555\uc5d0\n      \uc0c1\uc804\uc555 \ubcc0\ud658\ud589\ub82c\uc744 \ubc14\ub85c \uc801\uc6a9\ud558\ub294 \uac83\uc740\n      \uc774\ubbf8\uc9c0 7\uc758 \ud544\uae30 \ud750\ub984\uacfc \ub9de\uc9c0 \uc54a\ub294\ub2e4.\n      \uba3c\uc800 Switching Matrix X\ub85c\n      \ucd9c\ub825 \ub2e8\uc790\uc804\uc555 [va,vb,vc]\ub97c \uad6c\ud55c \ub4a4\n      vn=(va+vb+vc)\/3\uc744 \uc81c\uac70\ud558\uc5ec\n      [van,vbn,vcn]\uc744 \uad6c\ud558\ub294 \uad6c\uc870\ub85c \uc815\ub9ac\ud558\uc600\ub2e4.\n\n      Matrix Converter\uc758 \ucd5c\ub300 \uc804\uc555\uc804\ub2ec\ube44,\n      Space Vector Modulation,\n      Commutation Strategy,\n      SCR\/Triac\uc758 \uc138\ubd80 \uc18c\uc790\ud2b9\uc131 \ub4f1\uc740\n      \uc774\ubc88 \uc774\ubbf8\uc9c0\uc5d0 \uc9c1\uc811 \uc804\uac1c\ub418\uc5b4 \uc788\uc9c0 \uc54a\uc544\n      \ucd94\uac00\ud558\uc9c0 \uc54a\uc558\ub2e4.\n    <\/strong>\n  <\/div>\n\n\n  <!-- ================================================= -->\n  <div class=\"keywords\">\n    AC-AC Converter,\n    AC Voltage Controller,\n    Phase Control,\n    SCR,\n    Triac,\n    Firing Angle,\n    Three-Phase AC Controller,\n    PWM AC Chopper,\n    Duty Ratio,\n    Cycloconverter,\n    Matrix Converter,\n    Switching Matrix,\n    Bidirectional Switch,\n    Phase Voltage,\n    Neutral Voltage\n  <\/div>\n\n<\/div>\n&#8220;`\n","protected":false},"excerpt":{"rendered":"<p>1\ufe0f\u20e3 AC-AC, 3\uc0c1 \uc704\uc0c1 \uc81c\uc5b4\uae30 2\ufe0f\u20e3 AC-AC PWM \ucd08\ud37c 3\ufe0f\u20e3 \uc0ac\uc774\ud074\ub85c\ucee8\ubc84\ud130 4\ufe0f\u20e3 \ub9e4\ud2b8\ub9ad\uc2a4 \ucee8\ubc84\ud130 \u2705 \uc804\uccb4 \uc694\uc57d \ub9de\uc544\uc694, \ub300\uc6d0\ub2d8\uc774 \ub0a0\uce74\ub86d\uac8c \uc9da\uc73c\uc168\uc5b4\uc694. \ubc29\uae08 \ubcf8 \uc2dd\uc740 \uc870\uae08 \ub354 \uc8fc\uc758 \uae4a\uac8c \ub530\uc838\uc57c \ud569\ub2c8\ub2e4. \uc65c\ub0d0\ud558\uba74 \ucd9c\ub825 \uc0c1\uc804\uc555\uc744 \uc785\ub825 \uc804\uc555\uc73c\ub85c \ud45c\ud604\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \ub2e8\uc790\uc804\uc555\uacfc \uc0c1\uc804\uc555\uc744 \ud63c\ub3d9\ud558\uae30 \uc27d\uae30 \ub54c\ubb38\uc774\uc5d0\uc694. &#8220;`html \ud604\ub300\uc804\ub825\uc804\uc790\uacf5\ud559 5\uc7a5 AC-AC Converter \u00b7 Phase Controller \u00b7 PWM AC Chopper \u00b7 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