{"id":168479,"date":"2024-04-27T14:43:23","date_gmt":"2024-04-27T14:43:23","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e3%83%89%e3%83%a9%e3%82%a4%e3%83%90%e3%82%a2%e3%83%b3%e3%83%97%e3%83%aa%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2\/"},"modified":"2024-05-11T14:12:11","modified_gmt":"2024-05-11T14:12:11","slug":"%e3%83%89%e3%83%a9%e3%82%a4%e3%83%90%e3%82%a2%e3%83%b3%e3%83%97%e3%83%aa%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%89%e3%83%a9%e3%82%a4%e3%83%90%e3%82%a2%e3%83%b3%e3%83%97%e3%83%aa%e3%83%95%e3%82%a1%e3%82%a4%e3%82%a2\/","title":{"rendered":"\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2"},"content":{"rendered":"<p class=\"sidekick\">\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306f\u3001\u4fe1\u53f7\u3092\u5897\u5e45\u3057\u51fa\u529b\u30c7\u30d0\u30a4\u30b9\u3092\u99c6\u52d5\u3059\u308b\u96fb\u5b50\u90e8\u54c1\u3067\u3001\u97f3\u97ff\u6a5f\u5668\u3084\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/05\/\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2.png\" alt=\"\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\"\/><\/p>\n<h2>\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u3068\u306f<\/h2>\n<p><strong>\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2<\/strong>\u3068\u306f\u3001\u96fb\u5b50\u56de\u8def\u306e\u4e2d\u3067\u4fe1\u53f7\u3092\u5897\u5e45\u3057\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u3084\u305d\u306e\u4ed6\u306e\u51fa\u529b\u30c7\u30d0\u30a4\u30b9\u3092\u99c6\u52d5\u3059\u308b\u305f\u3081\u306e\u80fd\u529b\u3092\u6301\u3063\u305f\u96fb\u6c17\u90e8\u54c1\u3067\u3059\u3002\u97f3\u97ff\u6a5f\u5668\u3084\u7121\u7dda\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u306a\u3069\u3001\u5e45\u5e83\u3044\u5fdc\u7528\u304c\u3042\u308a\u307e\u3059\u3002\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306f\u4e3b\u306b\u3001\u5165\u529b\u3055\u308c\u305f\u96fb\u6c17\u4fe1\u53f7\u306e\u96fb\u5727\u3084\u96fb\u6d41\u3092\u5897\u52a0\u3055\u305b\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u6700\u7d42\u7684\u306a\u51fa\u529b\u30c7\u30d0\u30a4\u30b9\u304c\u9069\u5207\u306b\u6a5f\u80fd\u3059\u308b\u306e\u306b\u5fc5\u8981\u306a\u30ec\u30d9\u30eb\u307e\u3067\u4fe1\u53f7\u3092\u300c\u30c9\u30e9\u30a4\u30d6\u300d\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f<\/h2>\n<p>\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306f\u3001<u>\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf<\/u>\u3084<u>\u771f\u7a7a\u7ba1<\/u>\u306a\u3069\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u7528\u3044\u3066\u4fe1\u53f7\u3092\u5897\u5e45\u3057\u307e\u3059\u3002\u57fa\u672c\u7684\u306b\u306f\u3001\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306f\u5c0f\u3055\u3044\u96fb\u6c17\u4fe1\u53f7\u3092\u53d6\u308a\u8fbc\u3093\u3067\u3001\u305d\u308c\u3092\u3088\u308a\u5927\u304d\u306a\u96fb\u5727\u3084\u96fb\u6d41\u306e\u4fe1\u53f7\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u4ee5\u4e0b\u306e\u5f0f\u3067\u8868\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n<ol>\n<li>\u5165\u529b\u96fb\u5727 (V<sub>in<\/sub>)\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/li>\n<li>\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306e\u300c<strong>\u5229\u5f97<\/strong>\u300d(gain) \u3042\u308b\u3044\u306f\u5897\u5e45\u7387 (A) \u3092\u4e57\u3058\u307e\u3059\u3002<\/li>\n<li>\u5897\u5e45\u3055\u308c\u305f\u51fa\u529b\u96fb\u5727 (V<sub>out<\/sub>) \u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001V<sub>out<\/sub> = A * V<sub>in<\/sub> \u3067\u3059\u3002<\/li>\n<\/ol>\n<p>\u3053\u306e\u300c\u5229\u5f97\u300d\u306f\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306e\u7a2e\u985e\u3084\u8a2d\u8a08\u306b\u4f9d\u5b58\u3057\u3066\u304a\u308a\u3001\u5358\u4f4d\u306f\u901a\u5e38\u300c\u30c7\u30b7\u30d9\u30eb (dB)\u300d\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306e\u5f79\u5272\u3068\u7528\u9014<\/h2>\n<p>\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306f\u3001\u96fb\u5b50\u56de\u8def\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u305d\u306e\u7528\u9014\u306e\u4f8b\u3092\u6319\u3052\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30aa\u30fc\u30c7\u30a3\u30aa\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2:<\/strong> \u30aa\u30fc\u30c7\u30a3\u30aa\u4fe1\u53f7\u3092\u5897\u5e45\u3057\u3066\u30b9\u30d4\u30fc\u30ab\u30fc\u304b\u3089\u97f3\u3092\u51fa\u529b\u3059\u308b\u3068\u304d\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u7121\u7dda\u901a\u4fe1:<\/strong> \u9001\u4fe1\u30a2\u30f3\u30c6\u30ca\u3078\u9001\u3089\u308c\u308b\u524d\u306e\u7121\u7dda\u4fe1\u53f7\u3092\u5897\u5e45\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u9001\u4fe1:<\/strong> \u30b1\u30fc\u30d6\u30eb\u3092\u901a\u3058\u3066\u30c7\u30fc\u30bf\u4fe1\u53f7\u3092\u9001\u308b\u969b\u3001\u4fe1\u53f7\u306e\u54c1\u8cea\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u5897\u5e45\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u5236\u5fa1\u30b7\u30b9\u30c6\u30e0:<\/strong> \u30ed\u30dc\u30c3\u30c8\u30a2\u30fc\u30e0\u306a\u3069\u306e\u52d5\u4f5c\u3092\u5236\u5fa1\u3059\u308b\u305f\u3081\u306b\u3001\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u3078\u9001\u308b\u4fe1\u53f7\u3092\u5897\u5e45\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u3092\u9078\u3076\u969b\u306e\u30dd\u30a4\u30f3\u30c8<\/h2>\n<p>\u4ee5\u4e0b\u306f\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u3092\u9078\u3076\u969b\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5229\u5f97:<\/strong> \u5fc5\u8981\u306a\u4fe1\u53f7\u30ec\u30d9\u30eb\u3092\u5f97\u308b\u305f\u3081\u306b\u9069\u5207\u306a\u5897\u5e45\u7387\u3092\u6301\u3064\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u3092\u9078\u3073\u307e\u3059\u3002<\/li>\n<li><strong>\u5e2f\u57df\u5e45:<\/strong> \u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306f\u3001\u4f7f\u7528\u3059\u308b\u4fe1\u53f7\u306e\u5468\u6ce2\u6570\u7bc4\u56f2\u306b\u5bfe\u5fdc\u3059\u308b\u5e2f\u57df\u5e45\u3092\u6301\u3064\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u52b9\u7387:<\/strong> \u96fb\u529b\u306e\u6d88\u8cbb\u304c\u5c11\u306a\u3044\u9ad8\u52b9\u7387\u306e\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306f\u7279\u306b\u30d0\u30c3\u30c6\u30ea\u30fc\u3092\u4f7f\u7528\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li><strong>\u30b5\u30a4\u30ba\u3068\u91cd\u91cf:<\/strong> \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5408\u308f\u305b\u305f\u30b5\u30a4\u30ba\u3068\u91cd\u91cf\u306e\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u3092\u9078\u3073\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ul>\n<p>\u6700\u7d42\u7684\u306b\u306f\u3001\u5229\u7528\u3059\u308b\u74b0\u5883\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7279\u6027\u306b\u5408\u308f\u305b\u3066\u6700\u9069\u306a\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u3092\u9078\u3076\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u6280\u8853\u529b\u3068\u5275\u9020\u529b\u3092\u3082\u3063\u3066\u3001\u7406\u60f3\u7684\u306a\u96fb\u5b50\u56de\u8def\u306e\u8a2d\u8a08\u306b\u5f79\u7acb\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30c9\u30e9\u30a4\u30d0\u30a2\u30f3\u30d7\u30ea\u30d5\u30a1\u30a4\u30a2\u306f\u3001\u4fe1\u53f7\u3092\u5897\u5e45\u3057\u51fa\u529b\u30c7\u30d0\u30a4\u30b9\u3092\u99c6\u52d5\u3059\u308b\u96fb\u5b50\u90e8\u54c1\u3067\u3001\u97f3\u97ff\u6a5f\u5668\u3084\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":199039,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[90],"tags":[91],"class_list":["post-168479","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-90","tag-91","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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