{"id":1942,"date":"2022-09-24T19:46:25","date_gmt":"2022-09-24T10:46:25","guid":{"rendered":"https:\/\/www.kyu.kr\/?p=1942"},"modified":"2022-10-05T17:47:43","modified_gmt":"2022-10-05T08:47:43","slug":"ltspice%ec%97%90-%eb%b3%bc%eb%a5%a8potentiometer-%ec%b6%94%ea%b0%80%ed%95%98%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/www.kyu.kr\/?p=1942","title":{"rendered":"LTspice\uc5d0 \ubcfc\ub968(potentiometer) \ucd94\uac00\ud558\uae30"},"content":{"rendered":"\n

LTspice\uc5d0 \ubcfc\ub968\uc774 \uc5c6\ub294\ub370 \uc0ac\uc2e4 \ud558\uc774\ud30c\uc774 \uc570\ud504 \uc2dc\ubbac\uc5d0\uc11c \ubcfc\ub968\uc740 \ud070 \ud544\uc694\uac00 \uc5c6\uae34 \ud569\ub2c8\ub2e4\ub9cc, \uad6c\uae00\ub9c1\uc73c\ub85c \ucc3e\uc740 lib\uc744 \uc4f0\uace0 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\ub7f0\ub370 \uc0c8\ub85c \uad6c\uc785\ud55c \ucc45\uc5d0 \ub354 \ub098\uc740 \ubc84\uc804\uc774 \uc788\uae38\ub798 \uad6c\ud604\ud574\uc11c \ud14c\uc2a4\ud2b8 \ud574\ubd24\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

<\/p>\n\n\n\n

potentio<\/a>\ub2e4\uc6b4\ub85c\ub4dc<\/a><\/div>\n\n\n\n

\uc704\uc758 \ud30c\uc77c\uc740 potentio.asy\ub85c LTspice\\lib\\sym \ud3f4\ub354\uc5d0 \ub4e4\uc5b4\uac00\uba74 \ub429\ub2c8\ub2e4. \uc2ec\ubcfc\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

potentio<\/a>\ub2e4\uc6b4\ub85c\ub4dc<\/a><\/div>\n\n\n\n

\uc704\uc758 \ud30c\uc77c\uc740 potentio.sub\ub85c LTspice\\lib\\sub \ud3f4\ub354\uc5d0 \ub4e4\uc5b4\uac00\uba74 \ub429\ub2c8\ub2e4. \ub77c\uc774\ube0c\ub7ec\ub9ac\ub77c\uace0 \ubcf4\uc2dc\uba74 \ub429\ub2c8\ub2e4. \uc774 \ub77c\uc774\ube0c\ub7ec\ub9ac\ub294 \ub0b4\uc6a9\uc740 \ub531 \ub450 \uc904\uc778\ub370 \uc5ec\uae30\uc5d0 \uc9c0\uae08\uae4c\uc9c0 \ubab0\ub790\ub358\uac8c \ud558\ub098 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

.SUBCKT potentio in out common
R1 in out {R(1-A+gmin)}
R2 out common {R(A+gmin)}
.ENDS<\/p>\n\n\n\n

\ubcfc\ub968\uc740 0%\uc5d0\uc11c 100%\uae4c\uc9c0 \ubcc0\ud654\uc2dc\ud0a4\uba74\uc11c \uc0ac\uc6a9\ud558\uac8c \ub418\ub294\ub370 LTspice\uc5d0\uc11c \uc800\ud56d\uac12\uc740 0\uc774 \ub418\uba74 \uc800\ud56d\uac12\uc774 \ubd84\ubaa8\uac00 \ub420 \ub54c divide by 0\uc744 \ubc1c\uc0dd\uc2dc\ud0a4\uac8c \ub429\ub2c8\ub2e4. \uadf8\ub7ec\ub2c8 0\uc744 \ub9cc\ub4e4\uc9c0 \ub9d0\uc544\uc57c \ud558\ub294\ub370 \uc5bc\ub9c8\ub098 dummy \uac12\uc744 \ub123\uc5b4\uc8fc\uba74 \ub418\ub294\uc9c0 \uc560\ub9e4\ud569\ub2c8\ub2e4. \uc774\uac78 \uc704\ud574\uc11c LTspice\ub294 gmin\uc774\ub77c\ub294 \uac83\uc744 \ub9cc\ub4e4\uc5b4 \ub193\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc800\uac8c \uc5bc\ub9c8\uc778\uc9c0\ub294 \uc911\uc694\ud558\uc9c0 \uc54a\uace0 \uc2dc\ubbac\uc5d0 \uc601\ud5a5\uc744 \uc8fc\uc9c0\ub3c4 \uc54a\ub294\ub2e4\uace0 \ud558\ub124\uc694..<\/p>\n\n\n\n

\uc544\ub798\uc640 \uac19\uc740 \ud615\ud0dc\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc544\ub798\ub294 \ubcfc\ub968(\uac00\ubcc0\uc800\ud56d)\uc744 0%\uc5d0\uc11c 100%\uae4c\uc9c0 20% \uac04\uaca9\uc73c\ub85c \ubcc0\ud654\uc2dc\ud0a4\uba74\uc11c B \uc804\uc555\uc774 \ubcc0\ud558\ub294 \uac83\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4<\/p>\n\n\n

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

\uc704\uc5d0\uc11c U1\uc774 potentio.sub\uc5d0 \uc758\ud574 \uad6c\ud604\ub41c \ubd80\ubd84\uc785\ub2c8\ub2e4. \uc6d0\ub798 \uc704\uc5d0 \ub098\uc628 \ub9ac\ud50c \uc81c\uac70 \ud68c\ub85c\ub97c \uc0ac\uc6a9\ud558\uba74 R1\uc758 \uc704\uc5d0\uc11c 135V\uc758 \ub450 \ubc30\uc778 270V\uc758 \uc57d 1.3\ubc30\uac00 \uad00\uce21\ub418\ub294\ub370 LTspice\uc5d0\uc11c \uadf8\ub807\uac8c \uc2dc\ubbac\ub808\uc774\uc158\ub418\ub3c4\ub85d \ud558\ub294 \ubc29\ubc95\uc744 \uc544\uc9c1 \ubabb\ucc3e\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

<\/p>\n\n\n\n

10\/5\uc77c \uc5c5\ub370\uc774\ud2b8<\/p>\n\n\n\n

\uc800 135V\ub77c\ub294 \uc785\ub825 \uc804\uc555\uac12\uc740 \uc804\uc6d0\ud2b8\ub79c\uc2a4\uc758 \ucd9c\ub825\uc804\uc555\uc778\ub370, RMS\uc785\ub2c8\ub2e4. \ud558\uc9c0\ub9cc LTspice\ub294 amplitude\ub97c \ucde8\uae09\ud558\ubbc0\ub85c \ub8e8\ud2b8 2\ub97c \uacf1\ud574\uc8fc\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc989, 1.414\ub97c \uacf1\ud574\uc8fc\uc5b4\uc57c \ud558\uc8e0.<\/p>\n\n\n\n

\uadf8\ub7ec\uba74 \uc65c 1.414\ubc30\uac00 \uc544\ub2c8\uace0 \uc57d 1.3\ubc30\uac00 \ucd9c\ub825\ub418\ub294\uac00?\uc5d0 \ub300\ud55c \ub300\ub2f5\uc740 \uc77c\ub2e8 \ub2e4\uc774\uc624\ub4dc\uac00 1.x V \uc804\uc555 \uac15\ud558\ub97c \uc77c\uc73c\ud0a4\uace0 \ud68c\ub85c\uc758 \ub2e4\ub978 \ubd80\ubd84\uc5d0\uc11c\ub3c4 \ub2e4\uc591\ud55c \uc804\uc555 \uac15\ud558\uac00 \uc0dd\uae38 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uadf8\ub7ec\ubbc0\ub85c \uc2e4\uc81c\ub85c 1.414\ubc30\ub97c \ubaa8\ub450 \uc5bb\uc9c0\ub294 \ubabb\ud558\ub2c8\uae4c, 1.414\ubc30\uac00 \uc548\ub41c\ub2e4 -> 1.3x \ubc30 \uc815\ub3c4 \ub41c\ub2e4 -> 1.3\ubc30\ub97c \uc5bb\ub294\ub2e4 \uc774\ub807\uac8c \ub418\ub294\uad70\uc694<\/p>\n","protected":false},"excerpt":{"rendered":"

LTspice\uc5d0 \ubcfc\ub968\uc774 \uc5c6\ub294\ub370 \uc0ac\uc2e4 \ud558\uc774\ud30c\uc774 \uc570\ud504 \uc2dc\ubbac\uc5d0\uc11c \ubcfc\ub968\uc740 \ud070 \ud544\uc694\uac00 \uc5c6\uae34 \ud569\ub2c8\ub2e4\ub9cc, \uad6c\uae00\ub9c1\uc73c\ub85c \ucc3e\uc740 lib\uc744 \uc4f0\uace0 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\ub7f0\ub370 \uc0c8\ub85c \uad6c\uc785\ud55c \ucc45\uc5d0 \ub354 \ub098\uc740 \ubc84\uc804\uc774 \uc788\uae38\ub798 \uad6c\ud604\ud574\uc11c \ud14c\uc2a4\ud2b8 \ud574\ubd24\uc2b5\ub2c8\ub2e4. \uc704\uc758 \ud30c\uc77c\uc740 potentio.asy\ub85c LTspice\\lib\\sym \ud3f4\ub354\uc5d0 \ub4e4\uc5b4\uac00\uba74 \ub429\ub2c8\ub2e4. \uc2ec\ubcfc\uc785\ub2c8\ub2e4. \uc704\uc758 \ud30c\uc77c\uc740 potentio.sub\ub85c LTspice\\lib\\sub \ud3f4\ub354\uc5d0 \ub4e4\uc5b4\uac00\uba74 \ub429\ub2c8\ub2e4. \ub77c\uc774\ube0c\ub7ec\ub9ac\ub77c\uace0 \ubcf4\uc2dc\uba74 \ub429\ub2c8\ub2e4. \uc774 \ub77c\uc774\ube0c\ub7ec\ub9ac\ub294 \ub0b4\uc6a9\uc740 \ub531 \ub450 \uc904\uc778\ub370 \uc5ec\uae30\uc5d0 \uc9c0\uae08\uae4c\uc9c0 \ubab0\ub790\ub358\uac8c …
LTspice\uc5d0 \ubcfc\ub968(potentiometer) \ucd94\uac00\ud558\uae30<\/span> \ub354\ubcf4\uae30<\/a><\/p>\n","protected":false},"author":1,"featured_media":1945,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[151,212,214,213],"class_list":["post-1942","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-108","tag-ltspice","tag-potentiometer","tag-214","tag-213"],"_links":{"self":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/1942","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=1942"}],"version-history":[{"count":4,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/1942\/revisions"}],"predecessor-version":[{"id":1993,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/posts\/1942\/revisions\/1993"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=\/wp\/v2\/media\/1945"}],"wp:attachment":[{"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kyu.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}