{"id":1345,"date":"2025-03-02T06:27:06","date_gmt":"2025-03-02T06:27:06","guid":{"rendered":"http:\/\/schumann.jp\/?p=1345"},"modified":"2025-03-02T06:27:06","modified_gmt":"2025-03-02T06:27:06","slug":"class-aa-%e3%83%91%e3%83%af%e3%83%bc%e3%82%a2%e3%83%b3%e3%83%97%e3%81%af%e5%ae%9f%e7%8f%be%e3%81%a7%e3%81%8d%e3%82%8b%e3%81%8b%e3%83%bb%e3%83%bb%e3%83%bb%e8%bf%b7%e8%b5%b0%e7%b7%a8","status":"publish","type":"post","link":"http:\/\/schumann.jp\/?p=1345","title":{"rendered":"Class AA \u30d1\u30ef\u30fc\u30a2\u30f3\u30d7\u306f\u5b9f\u73fe\u3067\u304d\u308b\u304b\u30fb\u30fb\u30fb\u8ff7\u8d70\u7de8"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"688\" height=\"615\" src=\"http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA-Power-Old.png\" alt=\"\" class=\"wp-image-1346\" srcset=\"http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA-Power-Old.png 688w, http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA-Power-Old-671x600.png 671w\" sizes=\"(max-width: 688px) 100vw, 688px\" \/><\/figure>\n\n\n\n<p>\u5984\u60f3\u3092\u5177\u73fe\u5316\u3057\u305f\u306e\u304c\u4e0a\u8a18\u3002\u3000\u30db\u30a4\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u306e 33\u03a9 \u306f<a rel=\"noreferrer noopener\" href=\"http:\/\/settembre21x.blogspot.com\/2014\/10\/classaa_20.html\" target=\"_blank\">\u4f5c\u4f8b<\/a>\u306b\u5f93\u3063\u3066\u3001\u8abf\u6574\u3059\u308b\u3053\u3068\u306b\u3057\u305f\u3002\u3000\u5177\u4f53\u7684\u306b\u306f\u3001\u57fa\u677f\u306e\u96fb\u6e90\u3092\u5165\u308c\u305a\u306bLM1875 \u306e\u51fa\u529b\u7aef\u3068\u30b9\u30d4\u30fc\u30ab\u30fc\u5074\u3068\u306e\u9593\u306b\u9069\u5f53\u306a\u96fb\u6d41\u3092\u6d41\u3057\u3001LM1875 \u306e\u5165\u529b\u7aef\u540c\u58eb\u306e\u96fb\u5727\u304c\u6700\u5c11\u306b\u306a\u308b\u3088\u3046\u306b\u8abf\u6574\u3059\u308b\u3002\u3000\u5b9f\u969b\u306b\u3084\u3063\u3066\u307f\u308b\u3068\u3001\u3053\u306e\u8abf\u6574\u306f\u7d50\u69cb\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u3067\u3001\u30c7\u30b8\u30bf\u30eb\u30de\u30eb\u30c1\u30e1\u30fc\u30bf\u306e GDM-8261A \u306e 6 1\/2 \u6841\u8868\u793a\u306b\u3066\u8abf\u6574\u3067\u8ffd\u3044\u8fbc\u3093\u3060\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u6700\u521d\u306b\u3001\u00b122V \u306b\u8010\u3048\u3089\u308c\u308b LT1115 + LM1875 \u306b\u30c1\u30e3\u30ec\u30f3\u30b8\u3057\u305f\u3068\u3053\u308d\u3001\u30b3\u30f3\u30d1\u30ec\u30fc\u30bf\u72b6\u614b\uff08\u51fa\u529b\u96fb\u5727\u304c\u96fb\u6e90\u96fb\u5727\u306b\u5f35\u308a\u4ed8\u304f\uff09\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u4e0d\u53ef\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u3001\u00b118V \u304c\u6700\u5927\u96fb\u5727\u3067\u3042\u308b\u30aa\u30da\u30a2\u30f3\u30d7\u3067\u30c1\u30e3\u30ec\u30f3\u30b8\u3057\u305f\u3068\u3053\u308d\u3001OPA627, OPA827, JRC5534D, LF357, OP117 \u5168\u3066\u99c4\u76ee\u3002\u3000\u552f\u4e00 MUSES05 + LM1875 \u306e\u7d44\u307f\u5408\u308f\u305b\u3060\u3051\u304c\u30b3\u30f3\u30d1\u30ec\u30fc\u30bf\u72b6\u614b\u306b\u306a\u3089\u305a\u306b\u3059\u3093\u3060\u3002\u3000\u6b63\u5f26\u6ce2\u3092\u3044\u308c\u3066\u307f\u308b\u3068\u3001\u6b63\u5e38\u306b\u5897\u5e45\u304c\u78ba\u8a8d\u3067\u304d\u305f\u3002<\/p>\n\n\n\n<p>\u3068\u3053\u308d\u304c\u3001\u5468\u6ce2\u6570\u7279\u6027\u3092\u306f\u304b\u308b\u3068\u30fb\u30fb\u30fb\u3000100kHz \u524d\u5f8c\u306b\u30d4\u30fc\u30af\u3092\u3082\u3064\u73cd\u5999\u306a\u7279\u6027\u3067\u3042\u308b\u3002\u3000\u3053\u3093\u306a\u7279\u6027\u306f\u898b\u305f\u3053\u3068\u304c\u306a\u3044\u3002\u3000\u4f5c\u4f8b\u3092\u3088\u304f\u307f\u308b\u3068\u3001\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u63b2\u8f09\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u306b\u5c11\u3057\u4f3c\u3066\u3044\u308b\u3002\u3000<\/p>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_NO_C.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" width=\"800\" height=\"286\" src=\"http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_NO_C-800x286.png\" alt=\"\" class=\"wp-image-1374\" srcset=\"http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_NO_C-800x286.png 800w, http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_NO_C-768x274.png 768w, http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_NO_C-1536x549.png 1536w, http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_NO_C.png 1766w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption>\u30af\u30ea\u30c3\u30af\u3067\u62e1\u5927<\/figcaption><\/figure>\n\n\n\n<p>NF\u30eb\u30fc\u30d7\u306e\u30b3\u30f3\u30c7\u30f3\u30b5\u3068\u3057\u3066\u3001\u3044\u308d\u3044\u308d\u8a66\u3057\u3066\u307f\u308b\u3068\u3001150pF  \u7a0b\u5ea6\u304c\u59a5\u5f53\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002\u3000\u30d4\u30fc\u30af\u304c\u53ce\u307e\u3063\u3066\u307b\u3063\u3068\u3057\u305f\u3002\u3000\u4f4d\u76f8\u7279\u6027\u306e\u3042\u3070\u308c\u304c\u3001\u304b\u306a\u308a\u8a8d\u3081\u3089\u308c\u308b\u304c\u3001150pF \u3067\u306f\u305d\u308c\u306a\u308a\u306b\u5b89\u5b9a\u3057\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-medium is-resized\"><a href=\"http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_Old_C.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" src=\"http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_Old_C-800x286.png\" alt=\"\" class=\"wp-image-1375\" width=\"800\" height=\"286\" srcset=\"http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_Old_C-800x286.png 800w, http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_Old_C-768x275.png 768w, http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_Old_C-1536x550.png 1536w, http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/ClassAA_Old_C.png 1790w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption>\u30af\u30ea\u30c3\u30af\u3067\u62e1\u5927<\/figcaption><\/figure>\n\n\n\n<p>\u3068\u3053\u308d\u304c\u30011kHz \u306e\u65b9\u5f62\u6ce2\u3092\u3044\u308c\u308b\u3068\u8457\u660e\u306a\u30ea\u30f3\u30ad\u30f3\u30b0\u304c\u8a8d\u3081\u3089\u308c\u300110kHz \u306e\u65b9\u5f62\u6ce2\u3067\u767a\u632f\u3057\u3066\u3057\u307e\u3063\u305f\u3002\u3000\u3053\u3053\u307e\u3067\u304f\u308b\u3068\u3001LM1875\u3092\u3042\u304d\u3089\u3081\u3001TDA2030L \u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u306b\u3059\u308b\u3002\u3000Class AA \u30d8\u30c3\u30c9\u30db\u30f3\u30a2\u30f3\u30d7\u3001\u30df\u30cb\u30ef\u30c3\u30bf\u30fc\u3067\u3082\u3001\u3053\u3061\u3089\u3092\u5229\u7528\u3057\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u305f\u3002\u3000\u3068\u3053\u308d\u304c\u5c11\u3057\u826f\u3044\u3060\u3051\u3067\u3001\u72b6\u6cc1\u306f\u5909\u308f\u3089\u305a (T-T);<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"480\" height=\"234\" src=\"http:\/\/schumann.jp\/wp-content\/uploads\/2025\/01\/TEK00000.png\" alt=\"\" class=\"wp-image-1377\"\/><\/figure>\n\n\n\n<p>\u4ee5\u4e0a\u306e\u5b9f\u9a13\u306e\u969b\u306b\u306f\u3001\u96fb\u6d41\u30ea\u30df\u30c3\u30c8\u306e\u8a2d\u5b9a\u304c\u3067\u304d\u308b\u3001\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u5f0f\u5b9a\u96fb\u5727\u96fb\u6e90 TEXIO GwINSTEK GPS-2303 \u306b\u3068\u3066\u3082\u304a\u4e16\u8a71\u306b\u306a\u3063\u305f\u3002\u3000\u3082\u3057\u666e\u901a\u306e\u96fb\u6e90\u3067\u884c\u3063\u3066\u3044\u305f\u3089\u3001\u4f55\u500b\u3082 LM1875 \u3092\u7834\u58ca\u3057\u3066\u3057\u307e\u3063\u3066\u3044\u305f\u3053\u3068\u3067\u3042\u308d\u3046\u3002\u3000\u7121\u4fe1\u53f7\u6642\u306b\u306f\u3001\u00b1\u96fb\u6e90\u3068\u3082  0.06A  \u7a0b\u5ea6\u3067\u3042\u308b\u304c\u3001-10dbV \u306b\u3066\u5468\u6ce2\u6570\u7279\u6027\u3092\u6e2c\u308b\u3068\u304d\u306b\u306f\u30010.15A \u7a0b\u5ea6\u306b\u5897\u3048\u3066\u3044\u305f\u3002\u3000\u3053\u3046\u3044\u3046\u6d88\u8cbb\u96fb\u6d41\u304c\u6e2c\u5b9a\u3067\u304d\u308b\u306e\u3082\u3001\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u5f0f\u5b89\u5b9a\u5316\u96fb\u6e90\u306e\u5f37\u307f\u3067\u3042\u308b\u3002\u3000\u3061\u306a\u307f\u306b\u3001\u767a\u632f\u3057\u3066\u3044\u308b\u3068\u304d\u306b\u306f\u3001\u30de\u30a4\u30ca\u30b9\u96fb\u6e90\u306e\u307f\u304c\u96fb\u6d41\u304c\u5897\u52a0\u3057\u3066\u4fdd\u8b77\u304c\u50cd\u3044\u3066\u3044\u305f\u306e\u3067\u3001\u767a\u632f\u306e\u539f\u56e0\u306f C-Amp TDA2030L \u5074\u306b\u3042\u308b\u3053\u3068\u306f\u660e\u3089\u304b\u3060\u3002\u3000\u4f55\u304b\u5bfe\u7b56\u306f\u7acb\u3066\u3089\u308c\u306a\u3044\u3060\u308d\u3046\u304b\u30fb\u30fb\u30fb\u3002\u3000<\/p>\n\n\n\n<p class=\"has-text-align-right\"><em>to be continued&#8230;<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5984\u60f3\u3092\u5177\u73fe\u5316\u3057\u305f\u306e\u304c\u4e0a\u8a18\u3002\u3000\u30db\u30a4\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u306e 33\u03a9 \u306f\u4f5c\u4f8b\u306b\u5f93\u3063\u3066\u3001\u8abf\u6574\u3059\u308b\u3053\u3068\u306b\u3057\u305f\u3002\u3000\u5177\u4f53\u7684\u306b\u306f\u3001\u57fa\u677f\u306e\u96fb\u6e90\u3092\u5165\u308c\u305a\u306bLM1875 \u306e\u51fa\u529b\u7aef\u3068\u30b9\u30d4\u30fc\u30ab\u30fc\u5074\u3068\u306e\u9593\u306b\u9069\u5f53\u306a\u96fb\u6d41\u3092\u6d41\u3057\u3001LM1875 \u306e\u5165\u529b\u7aef\u540c\u58eb &hellip; <a href=\"http:\/\/schumann.jp\/?p=1345\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">Class AA \u30d1\u30ef\u30fc\u30a2\u30f3\u30d7\u306f\u5b9f\u73fe\u3067\u304d\u308b\u304b\u30fb\u30fb\u30fb\u8ff7\u8d70\u7de8<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[199,10,38],"tags":[105,205,204],"_links":{"self":[{"href":"http:\/\/schumann.jp\/index.php?rest_route=\/wp\/v2\/posts\/1345"}],"collection":[{"href":"http:\/\/schumann.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/schumann.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/schumann.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/schumann.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1345"}],"version-history":[{"count":6,"href":"http:\/\/schumann.jp\/index.php?rest_route=\/wp\/v2\/posts\/1345\/revisions"}],"predecessor-version":[{"id":1378,"href":"http:\/\/schumann.jp\/index.php?rest_route=\/wp\/v2\/posts\/1345\/revisions\/1378"}],"wp:attachment":[{"href":"http:\/\/schumann.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/schumann.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1345"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/schumann.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}