{"id":37191,"date":"2025-11-13T12:36:01","date_gmt":"2025-11-13T10:36:01","guid":{"rendered":"https:\/\/www.cpge-brizeux.fr\/wordpress\/non-classe\/conversion-de-puissance-2-transformateur-2.html"},"modified":"2025-11-13T12:36:01","modified_gmt":"2025-11-13T10:36:01","slug":"conversion-de-puissance-2-transformateur-2","status":"publish","type":"post","link":"https:\/\/www.cpge-brizeux.fr\/wordpress\/psi\/physchim-psi-2526\/conversion-de-puissance-2-transformateur-2.html","title":{"rendered":"Conversion de puissance 2 : Transformateur"},"content":{"rendered":"<h2>T\u00e9l\u00e9chargements<\/h2>\n<p><a href='https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-content\/uploads\/conversion-de-puissance-2-transformateur-poly.pdf'>Polycopi\u00e9<\/a><\/p>\n<p><a href='https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-content\/uploads\/conversion-de-puissance-2-transformateur-flashcards.apkg'>Flashcards Anki<\/a><\/p>\n<h2>Coups de pouce<\/h2>\n<p>Laisser la souris\/taper sur le texte pour l&rsquo;afficher.<\/p>\n<div class='coups-de-pouce'>\n<h5>Exercice 1<\/h5>\n<ol>\n<li>\n<ul>\n<li>\n    Quelle est la tension aux bornes de <span style=\"display: inline-block\"><svg class=\"typst-frame\" style=\"overflow: visible; width: 1.2133em; height: 0.683em;\" viewBox=\"0 0 13.3463 7.513000000000001\" width=\"13.3463pt\" height=\"7.513000000000001pt\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xmlns:h5=\"http:\/\/www.w3.org\/1999\/xhtml\"><g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 0 7.513000000000001)\"><use xlink:href=\"#gB94B0503E73A4218271A476A273D1963\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 8.349 10.23)\"><use xlink:href=\"#g782E79E6A0C99FA5B4FCE635BCE4F42C\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><\/g><defs id=\"glyph\"><symbol id=\"gB94B0503E73A4218271A476A273D1963\" overflow=\"visible\"><path d=\"M 0 0m 8.129 5.841 c 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xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xmlns:h5=\"http:\/\/www.w3.org\/1999\/xhtml\"><g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 0 7.513000000000001)\"><use xlink:href=\"#gA28FE5CE8B2FE3342A739D1534EE91FB\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 5.335000000000001 10.23)\"><use xlink:href=\"#g782E79E6A0C99FA5B4FCE635BCE4F42C\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><\/g><defs id=\"glyph\"><symbol id=\"gA28FE5CE8B2FE3342A739D1534EE91FB\" overflow=\"visible\"><path d=\"M 0 0m 4.059 4.301 c 0 -0.0880003 0.09899998 -0.23099995 0.2750001 -0.4510002 c 0.17599964 -0.22000003 0.26399994 -0.4729998 0.26399994 -0.7589998 c 0 -0.319 -0.15400028 -0.85800004 -0.47300005 -1.6170001 c -0.23099995 -0.528 -0.75900006 -1.276 -1.408 -1.276 c -0.50600004 0 -0.75900006 0.297 -0.75900006 0.902 c 0 0.42900002 0.20900011 1.1880001 0.6270001 2.277 c 0.08800006 0.23099995 0.13199997 0.41799998 0.13199997 0.54999995 c 0 0.5499997 -0.37400007 0.93499994 -0.924 0.93499994 c -0.48399997 0 -0.86899996 -0.2750001 -1.144 -0.8249998 c -0.22 -0.4510002 -0.32999998 -0.7370002 -0.32999998 -0.8800001 c 0 -0.09899998 0.055000007 -0.15400004 0.176 -0.15400004 c 0.143 0 0.16499996 0.065999985 0.20899999 0.22000003 c 0.25300002 0.8800001 0.605 1.3199997 1.056 1.3199997 c 0.143 0 0.22000003 -0.09899998 0.22000003 -0.3079996 c 0 -0.17600012 -0.055000067 -0.41800022 -0.176 -0.7370002 c -0.40700006 -1.089 -0.61600006 -1.826 -0.61600006 -2.2329998 c 0 -0.561 0.18700004 -0.946 0.561 -1.155 c 0.29700005 -0.154 0.60500014 -0.231 0.92400014 -0.231 c 0.97899985 0 1.661 1.056 1.9469998 1.903 c 0.35200024 1.034 0.5279999 1.7930001 0.5279999 2.277 c 0 0.53900003 -0.17599964 0.803 -0.5169997 0.803 c -0.2750001 0 -0.572 -0.28599977 -0.572 -0.5609999 Z \"\/><\/symbol><symbol id=\"g782E79E6A0C99FA5B4FCE635BCE4F42C\" overflow=\"visible\"><path d=\"M 0 0m 0.9163 3.2648 c 0.24639994 0 0.43119997 0.18479991 0.43119997 0.43120003 c 0 0.27719998 -0.14629996 0.42350006 -0.43119997 0.43120003 c 0.16940004 0.36189985 0.5544 0.6545 1.0548999 0.6545 c 0.6775999 0 1.1242001 -0.50820017 1.1242001 -1.1858001 c 0 -0.36960006 -0.13090014 -0.7238002 -0.40040016 -1.0703001 c -0.1308999 -0.17709994 -0.23099995 -0.30029988 -0.30029988 -0.36960006 l -1.8249 -1.8094999 c -0.10010001 -0.092400014 -0.08470002 -0.1155 -0.08470002 -0.3465 h 3.1724 l 0.23869991 1.4476 h -0.32340002 c -0.053900003 -0.4081 -0.11549997 -0.64680004 -0.18479991 -0.7007 c -0.03850007 -0.023100019 -0.27719998 -0.03850001 -0.7314999 -0.03850001 h -1.3090001 c 0.5159 0.45429993 0.9933001 0.86239994 1.4476 1.2243 c 0.34649992 0.2694999 0.59290004 0.50820005 0.7469001 0.71609986 c 0.23099995 0.30030012 0.34649992 0.6160002 0.34649992 0.94710016 c 0 0.47739983 -0.18479991 0.8547001 -0.56209993 1.1318998 c -0.3311 0.25409985 -0.7469001 0.38500023 -1.2397001 0.38500023 c -0.42349994 0 -0.7853999 -0.12319994 -1.1011 -0.3696003 c -0.3311 -0.26949978 -0.50049996 -0.60829973 -0.50049996 -1.0240998 c 0 -0.26180005 0.19250003 -0.45429993 0.4312 -0.45429993 Z \"\/><\/symbol><\/defs><\/svg><\/span> ?\n  <\/li>\n<li>\n    Utiliser la loi d\u2019Ohm.\n  <\/li>\n<\/ul>\n<\/li>\n<li>\n<ul>\n<\/ul>\n<\/li>\n<\/ol>\n<h5>Exercice 3<\/h5>\n<ol>\n<li>\n<ul>\n<li>\n    Prendre sous les yeux la simulation des lignes de champ dans un circuit magn\u00e9tique sans entrefer (chapitre \u00e9lectromagn\u00e9tisme 4).\n  <\/li>\n<li>\n    A quels endroits ont lieu les fuites de ligne de champ ?\n  <\/li>\n<\/ul>\n<\/li>\n<li>\n<ul>\n<li>\n    Exprimer la fonction de transfert du filtre RC.\n  <\/li>\n<li>\n    A quelle condition la fonction de transfert du filtre RC correspond-elle \u00e0 un int\u00e9grateur ?\n  <\/li>\n<\/ul>\n<\/li>\n<li>\n<ul>\n<li>\n    Relier <span style=\"display: inline-block\"><svg class=\"typst-frame\" style=\"overflow: visible; width: 0.9089999999999999em; height: 0.683em;\" viewBox=\"0 0 9.998999999999999 7.513000000000001\" width=\"9.998999999999999pt\" height=\"7.513000000000001pt\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xmlns:h5=\"http:\/\/www.w3.org\/1999\/xhtml\"><g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 0 7.513000000000001)\"><use xlink:href=\"#gB149A0570E9E9B873E3CBD8CA9731282\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><\/g><defs id=\"glyph\"><symbol id=\"gB149A0570E9E9B873E3CBD8CA9731282\" overflow=\"visible\"><path d=\"M 0 0m 9.691 7.348 c 0 0.11000013 -0.065999985 0.16499996 -0.19799995 0.16499996 l -1.3970003 -0.032999992 l -1.3969998 0.032999992 c -0.17600012 0 -0.25299978 -0.09899998 -0.25299978 -0.26399994 c 0 -0.07700014 0.032999992 -0.13199997 0.08799982 -0.14300013 c 0.11000013 -0.011000156 0.19799995 -0.021999836 0.25300026 -0.021999836 c 0.3409996 -0.011000156 0.5279999 -0.032999992 0.5829997 -0.04400015 c 0.055000305 -0.011000156 0.0880003 -0.04400015 0.0880003 -0.09899998 c 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-0.24199998 0 -0.341 -0.021999985 -0.341 -0.264 c 0 -0.10999999 0.066000015 -0.16499999 0.19799998 -0.16499999 l 1.386 0.033 l 0.6930001 -0.011 c 0.12099981 0 0.58299994 -0.022 0.704 -0.022 c 0.17599988 0 0.26399994 0.088 0.26399994 0.264 c 0 0.110000014 -0.12100005 0.16499999 -0.352 0.16499999 c -0.44000006 0 -0.6600001 0.044 -0.6600001 0.14300004 c 0 0 0.011000156 0.032999992 0.032999992 0.176 l 0.737 2.948 h 3.2229998 l -0.737 -2.948 c -0.032999992 -0.16500002 -0.16499996 -0.27500004 -0.38499975 -0.30800003 c -0.05499983 -0.011000007 -0.2420001 -0.011000007 -0.5609999 -0.011000007 c -0.20900011 0 -0.3080001 -0.088 -0.3080001 -0.264 c 0 -0.10999999 0.065999985 -0.16499999 0.19799995 -0.16499999 l 1.3860002 0.033 l 0.69299984 -0.011 c 0.12099981 0 0.572 -0.022 0.71500015 -0.022 c 0.17599964 0 0.26399994 0.088 0.26399994 0.264 c 0 0.110000014 -0.12100029 0.16499999 -0.35200024 0.16499999 c -0.45099974 0 -0.671 0.044 -0.671 0.14300004 c 0 0 0.011000156 0.032999992 0.032999992 0.176 l 1.4740005 5.8739996 c 0.05499935 0.23100042 0.15399933 0.37400007 0.29699993 0.42900038 c 0.065999985 0.021999836 0.2529993 0.032999992 0.57199955 0.032999992 c 0.28600025 0 0.41800022 0 0.41800022 0.26399994 Z \"\/><\/symbol><\/defs><\/svg><\/span> au courant <span style=\"display: inline-block\"><svg class=\"typst-frame\" style=\"overflow: visible; width: 0.7992999999999999em; height: 0.683em;\" viewBox=\"0 0 8.7923 7.513000000000001\" width=\"8.7923pt\" height=\"7.513000000000001pt\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xmlns:h5=\"http:\/\/www.w3.org\/1999\/xhtml\"><g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 0 7.513000000000001)\"><use xlink:href=\"#gB8F35D0CF3F7279F00B25A54932361F6\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 3.795 10.23)\"><use xlink:href=\"#gAF9EB520E3A34C57CE8359D7433988FA\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><\/g><defs id=\"glyph\"><symbol id=\"gB8F35D0CF3F7279F00B25A54932361F6\" overflow=\"visible\"><path d=\"M 0 0m 3.124 6.831 c 0 0.29699993 -0.14300013 0.44000006 -0.44000006 0.44000006 c -0.3080001 0 -0.61599994 -0.3080001 -0.61599994 -0.6160002 c 0 -0.29699993 0.1539998 -0.43999958 0.45099998 -0.43999958 c 0.30799985 0 0.605 0.3079996 0.605 0.6159997 Z m -0.2750001 -5.3129997 c -0.2420001 -0.869 -0.5940001 -1.309 -1.045 -1.309 c -0.143 0 -0.22000003 0.09900001 -0.22000003 0.30800003 c 0 0.18699998 0.319 1.1329999 0.96800005 2.849 c 0.08799982 0.25300002 0.13199997 0.45099998 0.13199997 0.5940001 c 0 0.53900003 -0.37400007 0.93499994 -0.913 0.93499994 c -0.47300005 0 -0.847 -0.2750001 -1.122 -0.83599997 c -0.22 -0.45099998 -0.32999998 -0.74800014 -0.32999998 -0.89100003 c 0 -0.09899998 0.055000007 -0.14299989 0.176 -0.14299989 c 0.143 0 0.16499996 0.065999985 0.20899999 0.21999979 c 0.25300002 0.8800001 0.594 1.3200002 1.034 1.3200002 c 0.143 0 0.21999991 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Relier <span style=\"display: inline-block\"><svg class=\"typst-frame\" style=\"overflow: visible; width: 0.7992999999999999em; height: 0.683em;\" viewBox=\"0 0 8.7923 7.513000000000001\" width=\"8.7923pt\" height=\"7.513000000000001pt\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xmlns:h5=\"http:\/\/www.w3.org\/1999\/xhtml\"><g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 0 7.513000000000001)\"><use xlink:href=\"#gB8F35D0CF3F7279F00B25A54932361F6\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 3.795 10.23)\"><use xlink:href=\"#gAF9EB520E3A34C57CE8359D7433988FA\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><\/g><defs id=\"glyph\"><symbol id=\"gB8F35D0CF3F7279F00B25A54932361F6\" overflow=\"visible\"><path d=\"M 0 0m 3.124 6.831 c 0 0.29699993 -0.14300013 0.44000006 -0.44000006 0.44000006 c -0.3080001 0 -0.61599994 -0.3080001 -0.61599994 -0.6160002 c 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0.92399997 -0.935 c 0.47299993 0 0.847 0.275 1.1220001 0.825 c 0.20899987 0.42900002 0.319 0.72599995 0.319 0.89100003 c 0 0.09899998 -0.055000067 0.15399992 -0.17600012 0.15399992 c -0.032999992 0 -0.19799995 -0.09899998 -0.19799995 -0.23099995 Z \"\/><\/symbol><symbol id=\"gAF9EB520E3A34C57CE8359D7433988FA\" overflow=\"visible\"><path d=\"M 0 0m 2.3331 5.1128 c -0.3311 -0.32340002 -0.8239001 -0.48510027 -1.4938002 -0.48510027 v -0.33879995 c 0.4543 0 0.81619996 0.069300175 1.0934 0.20020008 v -3.8346 c 0 -0.10010004 -0.0077000856 -0.16170001 -0.030800104 -0.1925 c -0.03849995 -0.08470002 -0.2694999 -0.13090003 -0.69299996 -0.13090003 h -0.3157 v -0.3311 l 1.3706 0.0308 l 1.3783002 -0.0308 v 0.3311 h -0.31570005 c -0.42350006 0 -0.6545 0.046200007 -0.70070004 0.13090003 c -0.015399933 0.030799985 -0.0230999 0.092399955 -0.0230999 0.1925 v 4.2118998 c 0 0.20790005 -0.030800104 0.24640036 -0.26950002 0.24640036 Z \"\/><\/symbol><\/defs><\/svg><\/span> \u00e0 <span style=\"display: 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0.45429993 0.23100019 0.45429993 0.4928 Z \"\/><\/symbol><\/defs><\/svg><\/span>.\n  <\/li>\n<li>\n    Appliquer le th\u00e9or\u00e8me d\u2019Amp\u00e8re sur une ligne de champ moyenne.\n  <\/li>\n<\/ul>\n<\/li>\n<li>\n<ul>\n<li>\n    \u00c9noncer la loi de Lens-Faraday pour l\u2019enroulement secondaire.\n  <\/li>\n<\/ul>\n<\/li>\n<li>\n<ul>\n<li>\n    Il s\u2019agit de faire l\u2019application num\u00e9rique des coefficients de proportionnalit\u00e9 entre <span style=\"display: inline-block\"><svg class=\"typst-frame\" style=\"overflow: visible; width: 0.9089999999999999em; height: 0.683em;\" viewBox=\"0 0 9.998999999999999 7.513000000000001\" width=\"9.998999999999999pt\" height=\"7.513000000000001pt\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xmlns:h5=\"http:\/\/www.w3.org\/1999\/xhtml\"><g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 0 7.513000000000001)\"><use xlink:href=\"#gB149A0570E9E9B873E3CBD8CA9731282\" x=\"0\" y=\"0\" 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0 0.2849 0.13090003 0.7777 0.40040004 1.463 c 0.08469987 0.23099995 0.1308999 0.39269996 0.1308999 0.47740006 c 0 0.40039992 -0.34650004 0.6775999 -0.74689996 0.6775999 c -0.36960006 0 -0.66220003 -0.18479991 -0.8778 -0.55439997 c -0.17710003 -0.30030012 -0.26180002 -0.51590014 -0.26180002 -0.6391001 c 0 -0.08469987 0.053900003 -0.1308999 0.16169998 -0.1308999 c 0.08469999 0 0.13859999 0.046200037 0.16170001 0.14629984 c 0.1771 0.6006 0.44659996 0.9009001 0.7931 0.9009001 c 0.10010004 0 0.15400004 -0.0769999 0.15400004 -0.23099995 c 0 -0.11549997 -0.030800104 -0.25410008 -0.10010004 -0.43120003 c -0.16170001 -0.40810013 -0.25409997 -0.6622 -0.29260004 -0.7623 c -0.10009992 -0.3003 -0.14629996 -0.5698 -0.14629996 -0.7931 c 0 -0.6545 0.42349994 -0.9933 1.0780001 -0.9933 c 0.28489995 0 0.53900003 0.0924 0.77769995 0.2849 c -0.11549997 -0.4389 -0.26950002 -0.7777 -0.4697001 -1.0164 c -0.27719998 -0.31570005 -0.5697999 -0.46969998 -0.88549995 -0.46969998 c -0.23869991 0 -0.41579998 0.06159997 -0.5236 0.1925 c 0.21560001 0.053900003 0.39269996 0.20019996 0.39269996 0.44659996 c 0 0.20790002 -0.10779989 0.3157 -0.3311 0.3157 c -0.27719998 0 -0.46969998 -0.25409997 -0.46969998 -0.5313 c 0 -0.45429993 0.44659996 -0.7006999 0.9317 -0.7006999 c 0.45429993 0 0.86240005 0.15399992 1.2397001 0.45429993 c 0.37730002 0.3003 0.61599994 0.6776 0.72379994 1.1165 l 0.72379994 2.8720999 c 0.0230999 0.08470011 0.030799866 0.13860011 0.030799866 0.17710018 c 0 0.1539998 -0.12319994 0.26950002 -0.27719975 0.26950002 Z \"\/><\/symbol><\/defs><\/svg><\/span>.\n  <\/li>\n<\/ul>\n<\/li>\n<li>\n<ul>\n<li>\n    Lire graphiquement les tensions <span style=\"display: inline-block\"><svg class=\"typst-frame\" style=\"overflow: visible; width: 0.9946em; height: 0.683em;\" viewBox=\"0 0 10.9406 7.513000000000001\" width=\"10.9406pt\" height=\"7.513000000000001pt\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" 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-0.43120003 c -0.16170001 -0.40810013 -0.25409997 -0.6622 -0.29260004 -0.7623 c -0.10009992 -0.3003 -0.14629996 -0.5698 -0.14629996 -0.7931 c 0 -0.6545 0.42349994 -0.9933 1.0780001 -0.9933 c 0.28489995 0 0.53900003 0.0924 0.77769995 0.2849 c -0.11549997 -0.4389 -0.26950002 -0.7777 -0.4697001 -1.0164 c -0.27719998 -0.31570005 -0.5697999 -0.46969998 -0.88549995 -0.46969998 c -0.23869991 0 -0.41579998 0.06159997 -0.5236 0.1925 c 0.21560001 0.053900003 0.39269996 0.20019996 0.39269996 0.44659996 c 0 0.20790002 -0.10779989 0.3157 -0.3311 0.3157 c -0.27719998 0 -0.46969998 -0.25409997 -0.46969998 -0.5313 c 0 -0.45429993 0.44659996 -0.7006999 0.9317 -0.7006999 c 0.45429993 0 0.86240005 0.15399992 1.2397001 0.45429993 c 0.37730002 0.3003 0.61599994 0.6776 0.72379994 1.1165 l 0.72379994 2.8720999 c 0.0230999 0.08470011 0.030799866 0.13860011 0.030799866 0.17710018 c 0 0.1539998 -0.12319994 0.26950002 -0.27719975 0.26950002 Z \"\/><\/symbol><\/defs><\/svg><\/span> correspondant au champ r\u00e9manent et \u00e0 l\u2019excitation coercitive puis les convertir avec les r\u00e9sultats de la question pr\u00e9c\u00e9dente.\n  <\/li>\n<\/ul>\n<\/li>\n<li>\n<ul>\n<li>\n    La d\u00e9mo a \u00e9t\u00e9 vue en cours.\n  <\/li>\n<\/ul>\n<\/li>\n<li>\n<ul>\n<li>\n    Utiliser les relations des questions pr\u00e9c\u00e9dentes pour convertir l\u2019aire en carreaux en <span style=\"display: inline-block\"><svg class=\"typst-frame\" style=\"overflow: visible; width: 1.3709669999999998em; height: 0.683em;\" viewBox=\"0 0 15.080637 7.513000000000001\" width=\"15.080637pt\" height=\"7.513000000000001pt\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xmlns:h5=\"http:\/\/www.w3.org\/1999\/xhtml\"><g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 1.8333370000000002 7.513000000000001)\"><use xlink:href=\"#gC158FBD1746E7914A2B05FDE8BDAF1BE\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><g class=\"typst-text\" 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0.59290004 0.50820005 0.7469001 0.71609986 c 0.23099995 0.30030012 0.34649992 0.6160002 0.34649992 0.94710016 c 0 0.47739983 -0.18479991 0.8547001 -0.56209993 1.1318998 c -0.3311 0.25409985 -0.7469001 0.38500023 -1.2397001 0.38500023 c -0.42349994 0 -0.7853999 -0.12319994 -1.1011 -0.3696003 c -0.3311 -0.26949978 -0.50049996 -0.60829973 -0.50049996 -1.0240998 c 0 -0.26180005 0.19250003 -0.45429993 0.4312 -0.45429993 Z \"\/><\/symbol><\/defs><\/svg><\/span> puis en <span style=\"display: inline-block\"><svg class=\"typst-frame\" style=\"overflow: visible; width: 3.803901em; height: 0.683em;\" viewBox=\"0 0 41.842911 7.513000000000001\" width=\"41.842911pt\" height=\"7.513000000000001pt\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xmlns:h5=\"http:\/\/www.w3.org\/1999\/xhtml\"><g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 1.8333370000000002 7.513000000000001)\"><use xlink:href=\"#gF8799BBC1CC461BCCB475321825DC179\" x=\"0\" y=\"0\" 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0.8249999 0.3630004 1.4959999 0.3630004 c 0.319 0 0.51699996 0 0.58299994 -0.011000156 c 0.1980002 -0.04400015 0.1980002 -0.14300013 0.1980002 -0.37400007 v -5.731 c 0 -0.143 -0.011000156 -0.231 -0.04400015 -0.286 c -0.065999985 -0.12099999 -0.41799998 -0.187 -1.056 -0.187 h -0.48399997 v -0.429 c 0.32999992 0.022 1.0339999 0.033 2.101 0.033 c 1.0780001 0 1.7820001 -0.011 2.112 -0.033 v 0.429 h -0.4840002 c -0.638 0 -0.9899998 0.066000015 -1.0559998 0.187 c -0.032999992 0.055000007 -0.04400015 0.143 -0.04400015 0.286 v 5.731 c 0 0.12100029 0.021999836 0.22000027 0.04400015 0.28600025 c 0.021999836 0.065999985 0.26399994 0.09899998 0.737 0.09899998 c 0.671 0 1.1989999 -0.032999992 1.4850001 -0.3630004 c 0.3079996 -0.36299992 0.35199976 -1.0119996 0.4289999 -1.7379999 Z \"\/><\/symbol><\/defs><\/svg><\/span>.\n  <\/li>\n<\/ul>\n<\/li>\n<li>\n<ul>\n<li>\n    L\u2019aire du cycle d\u2019hyst\u00e9r\u00e9sis doit-elle \u00eatre faible ou importante pour r\u00e9duire les pertes ?\n  <\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h5>Exercice 4<\/h5>\n<ol>\n<li>\n<ul>\n<li>\n    Les pertes fer d\u00e9pendent-elles du courant dans le secondaire ?\n  <\/li>\n<li>\n    Calculer la puissance re\u00e7ue par le primaire en utilisant les tensions et courants efficaces ainsi que le facteur de puissance.\n  <\/li>\n<li>\n    Calculer la puissance fournie par le secondaire en utilisant les tensions et courants efficaces.\n  <\/li>\n<li>\n    Les pertes totales sont la diff\u00e9rence entre la puissance re\u00e7ue par le primaire et la puissance fournie par le secondaire.\n  <\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h5>Exercice 5<\/h5>\n<ol>\n<li>\n<ul>\n<li>\n    Que valent les pertes fer ?\n  <\/li>\n<li>\n    Calculer les pertes \u00e0 puissance maximale \u00e0 partir des tensions et courants au primaire et au secondaire. En d\u00e9duire les pertes cuivres \u00e0 puissance maximale.\n  <\/li>\n<li>\n    Calculer la r\u00e9sistance \u00e9quivalente des fils du transformateur (vu au primaire ou au secondaire).\n  <\/li>\n<li>\n    Que vaut le courant au secondaire pour une charge de <span style=\"display: inline-block\"><svg class=\"typst-frame\" style=\"overflow: visible; width: 2.194667em; height: 0.683em;\" viewBox=\"0 0 24.141337 7.513000000000001\" width=\"24.141337pt\" height=\"7.513000000000001pt\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xmlns:h5=\"http:\/\/www.w3.org\/1999\/xhtml\"><g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 0 7.513000000000001)\"><use xlink:href=\"#g19DB37D42873A9E80AFC41942A4D40C4\" x=\"0\" y=\"0\" fill=\"#000000\" fill-rule=\"nonzero\"\/><\/g><g class=\"typst-text\" transform=\"matrix(1 0 0 -1 5.5 7.513000000000001)\"><use xlink:href=\"#gFD2112639B0D2471708560F8720745C2\" x=\"0\" y=\"0\" fill=\"#000000\" 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\"\/><\/symbol><\/defs><\/svg><\/span> ? En d\u00e9duire les pertes cuivre.\n  <\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h5>Exercice 6<\/h5>\n<ol>\n<li>\n<ul>\n<\/ul>\n<\/li>\n<\/ol><\/div>\n","protected":false},"excerpt":{"rendered":"<p>T\u00e9l\u00e9chargements Polycopi\u00e9 Flashcards Anki Coups de pouce Laisser la souris\/taper sur le texte pour l&rsquo;afficher. Exercice 1 Quelle est la tension aux bornes de (en fonction de , , et ) ? Ramener le primaire au secondaire puis effectuer un&hellip;<\/p>\n<p class=\"more-link-p\"><a class=\"more-link\" href=\"https:\/\/www.cpge-brizeux.fr\/wordpress\/psi\/physchim-psi-2526\/conversion-de-puissance-2-transformateur-2.html\">Read more &rarr;<\/a><\/p>\n","protected":false},"author":26,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[430],"tags":[],"class_list":["post-37191","post","type-post","status-publish","format-standard","hentry","category-physchim-psi-2526"],"_links":{"self":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts\/37191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/comments?post=37191"}],"version-history":[{"count":0,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts\/37191\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/media?parent=37191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/categories?post=37191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/tags?post=37191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}