{"id":5380,"date":"2023-06-05T16:19:39","date_gmt":"2023-06-05T08:19:39","guid":{"rendered":"http:\/\/www.dcl-controls.com\/?p=5380"},"modified":"2025-03-31T09:18:37","modified_gmt":"2025-03-31T09:18:37","slug":"why-voltage-signal-oscillate","status":"publish","type":"post","link":"https:\/\/dclactuator.com\/ja_jp\/%e3%82%b5%e3%83%9d%e3%83%bc%e3%83%88\/%e3%82%bf%e3%83%bb%e3%82%a2%e3%82%ad%e3%83%a5%e3%83%86%e3%83%bc%e3%82%bf%e3%83%bc\/%e9%9b%bb%e5%9c%a7%e4%bf%a1%e5%8f%b7%e3%81%8c%e6%8c%af%e5%8b%95%e3%81%99%e3%82%8b%e7%90%86%e7%94%b1","title":{"rendered":"\u96fb\u5727\u51fa\u529b\u4fe1\u53f7\u306f\u306a\u305c\u7279\u5b9a\u306e\u6761\u4ef6\u3067\u767a\u632f\u3059\u308b\u306e\u304b\uff1f"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5380\" class=\"elementor elementor-5380\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1893469 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"1893469\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-61d5be0\" data-id=\"61d5be0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f64e7bf elementor-widget elementor-widget-text-editor\" data-id=\"f64e7bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>\u00a0<\/h3><h2><strong>1. \u96fb\u5727\u4fe1\u53f7\u4f1d\u9001\u7d4c\u8def<\/strong><\/h2><figure style=\"width: 960px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" src=\"\/wp-content\/uploads\/2023\/06\/voltage-signal-path.webp\" alt=\"\u56f31 \u96fb\u5727\u6e90\u4fe1\u53f7\u306e\u4f1d\u9001\u7d4c\u8def\" width=\"960\" height=\"299\" \/><figcaption class=\"wp-caption-text\">\u56f31 \u96fb\u5727\u6e90\u4fe1\u53f7\u306e\u4f1d\u9001\u7d4c\u8def<\/figcaption><\/figure><p>\u793a\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u306b <strong>\u56f31<\/strong>\u96fb\u5727\u4fe1\u53f7\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u306f\u30013\u3064\u306e\u4e3b\u8981\u306a\u69cb\u6210\u8981\u7d20\u304b\u3089\u6210\u308a\u7acb\u3063\u3066\u3044\u307e\u3059\u3002<\/p><ol><li><p><strong>\u8ca0\u5e30\u9084\u96fb\u5727\u51fa\u529b\u56de\u8def<\/strong><\/p><\/li><li><p><strong>\u4fe1\u53f7\u4f1d\u9001\u30b1\u30fc\u30d6\u30eb<\/strong><\/p><ul><li><p>\u542b\u307e\u308c\u308b <strong>\u5bc4\u751f\u5bb9\u91cf\uff08C1\uff09<\/strong> \u305d\u3057\u3066 <strong>\u5bc4\u751f\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\uff08L1\uff09<\/strong>\u3053\u308c\u306f\u3001 <strong>\u30b1\u30fc\u30d6\u30eb\u306e\u9577\u3055<\/strong> \u305d\u3057\u3066 <strong>\u914d\u7dda\u56f3<\/strong>.<\/p><\/li><\/ul><\/li><li><p><strong>\u5165\u529b\u4fe1\u53f7\u53d6\u5f97\u56de\u8def<\/strong><\/p><ul><li><p>\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059 <strong>\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\uff08L2\u3001C2\uff09<\/strong>.<\/p><\/li><\/ul><\/li><\/ol><hr \/><h2><strong>2. \u306a\u305c\u632f\u52d5\u304c\u8d77\u3053\u308b\u306e\u304b\uff1f<\/strong><\/h2><p>\u8ca0\u5e30\u9084\u96fb\u5727\u4fe1\u53f7\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u5165\u529b\u4fe1\u53f7\u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p><p><span class=\"katex\">\u2223Xi\u2032\u2223=\u2223Xi\u2223\u2212\u2223Xf\u2223|X_i&#039;| = |X_i| \u2013 |X_f|<\/span><\/p><p>\u3057\u304b\u3057\u3001 <strong>\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u4fe1\u53f7\uff08|Xf|\uff09\u306f180\u00b0\u4f4d\u76f8\u30b7\u30d5\u30c8\u3055\u308c\u308b\u3002<\/strong>\u3059\u308b\u3068\u3001\u65b9\u7a0b\u5f0f\u306f\u6b21\u306e\u3088\u3046\u306b\u5909\u308f\u308a\u307e\u3059\u3002<\/p><p><span class=\"katex\">\u2223Xi\u2032\u2223=\u2223Xi\u2223+\u2223Xf\u2223|X_i&#039;| = |X_i| + |X_f|<\/span><\/p><p>\u3053\u308c\u306f\u3001\u305f\u3068\u3048 <strong>\u5165\u529b\u4fe1\u53f7\u306a\u3057<\/strong> \u9069\u7528\u3055\u308c\u308b\uff08<strong>|Xi| = 0<\/strong>)\u3001 <strong>\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u4fe1\u53f7\u306f\u51fa\u529b\u3092\u7dad\u6301\u3059\u308b<\/strong>\u7d50\u679c\u3068\u3057\u3066 <strong>\u81ea\u5df1\u6301\u7d9a\u632f\u52d5<\/strong>.<\/p><p>\u632f\u52d5\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u6b21\u306e2\u3064\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p><ol><li><p><strong>\u30eb\u30fc\u30d7\u30b2\u30a4\u30f3\u304c1\u3088\u308a\u5927\u304d\u3044\u5834\u5408\uff1a<\/strong> <strong>|AF| &gt; 1<\/strong><\/p><\/li><li><p><strong>\u4f4d\u76f8\u30b7\u30d5\u30c8\u306f\u4ee5\u4e0b\u3092\u6e80\u305f\u3059\uff1a<\/strong> <strong>\u03c6A + \u03c6F = (2n+1)\u03c0<\/strong><\/p><\/li><\/ol><p>\u306b\u3064\u3044\u3066 <strong>\u4f4d\u76f8\u30b7\u30d5\u30c8<\/strong> \u30eb\u30fc\u30d7\u5185\u306e\u60c5\u5831\u306f\u8907\u6570\u306e\u30bd\u30fc\u30b9\u304b\u3089\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002<br \/>\u2714 <strong>\u9001\u96fb\u30b1\u30fc\u30d6\u30eb\u5185\u306e\u5bc4\u751f\u5bb9\u91cf\uff08C1\uff09\u3068\u5bc4\u751f\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\uff08L1\uff09<\/strong><br \/>\u2714 <strong>\u5165\u529b\u56de\u8def\u5185\u306e\u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\u90e8\u54c1\uff08L2\u3001C2\uff09<\/strong><br \/>\u2714 <strong>\u51fa\u529b\u56de\u8def\u306e\u30d5\u30a3\u30eb\u30bf\u30b3\u30f3\u30c7\u30f3\u30b5<\/strong><\/p><p>\u3082\u3057 <strong>\u4f4d\u76f8\u30b7\u30d5\u30c8\u306e\u5408\u8a08\u306f180\u00b0\u306b\u9054\u3059\u308b<\/strong>\u81ea\u5df1\u632f\u52d5\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p><hr \/><h2><strong>3\uff0e\u632f\u52d5\u3092\u9632\u3050\u306b\u306f\uff1f<\/strong><\/h2><p>\u632f\u52d5\u3092\u9632\u3050\u305f\u3081\u306b\u3001 <strong>\u4e0a\u8a18\u306e2\u3064\u306e\u6761\u4ef6\u306e\u3046\u3061\u3044\u305a\u308c\u304b1\u3064\u3092\u6e80\u305f\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002<\/strong> \u52d5\u4f5c\u5468\u6ce2\u6570\u7bc4\u56f2\u5185\u306b\u304a\u3044\u3066\u3002<\/p><figure style=\"width: 417px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-medium\" src=\"\/wp-content\/uploads\/2023\/06\/self-excited-oscilation-factor.webp\" alt=\"\u56f32 \u632f\u52d5\u306e\u306a\u3044\u8ca0\u5e30\u9084\u30eb\u30fc\u30d7\u306e\u72b6\u614b\" width=\"417\" height=\"415\" \/><figcaption class=\"wp-caption-text\">\u56f32 \u632f\u52d5\u306e\u306a\u3044\u8ca0\u5e30\u9084\u30eb\u30fc\u30d7\u306e\u72b6\u614b<\/figcaption><\/figure><p>\u793a\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u306b <strong>\u56f32<\/strong>2\u3064\u306e\u91cd\u8981\u306a\u5468\u6ce2\u6570\u304c\u8003\u616e\u3055\u308c\u308b\u3002<\/p><ul><li><p><strong>fc:<\/strong> \u30eb\u30fc\u30d7\u30b2\u30a4\u30f3\u304c <strong>|AF|\u304c0dB\u307e\u3067\u4f4e\u4e0b\u3059\u308b<\/strong>.<\/p><\/li><li><p><strong>fo:<\/strong> \u30eb\u30fc\u30d7\u4f4d\u76f8\u30b7\u30d5\u30c8\u304c\u8d85\u3048\u308b\u5468\u6ce2\u6570 <strong>-180\u00b0<\/strong>.<\/p><\/li><\/ul><p>\u5b89\u5b9a\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u3001 <strong>\u30b2\u30a4\u30f3\u306f0dB\u672a\u6e80\u3067\u3042\u308b\u3079\u304d\u3067\u3059<\/strong> \u4f4d\u76f8\u30b7\u30d5\u30c8\u304c-180\u00b0\u306b\u9054\u3057\u305f\u3068\u304d\u3002<\/p><hr \/><h2><strong>4. \u96fb\u6d41\u51fa\u529b\u4fe1\u53f7\u306e\u65b9\u304c\u5b89\u5b9a\u3057\u3066\u3044\u308b\u7406\u7531<\/strong><\/h2><figure style=\"width: 600px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-medium\" src=\"\/wp-content\/uploads\/2023\/06\/current-signal-feedback-path.webp\" alt=\"\u56f33 \u96fb\u6d41\u6e90\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30eb\u30fc\u30d7\" width=\"600\" height=\"406\" \/><figcaption class=\"wp-caption-text\">\u56f33 \u96fb\u6d41\u6e90\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30eb\u30fc\u30d7<\/figcaption><\/figure><figure style=\"width: 586px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"\/wp-content\/uploads\/2023\/06\/voltage-signal-feedback-path.webp\" alt=\"\u56f34 \u96fb\u5727\u6e90\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30eb\u30fc\u30d7\" width=\"586\" height=\"425\" \/><figcaption class=\"wp-caption-text\">\u56f34 \u96fb\u5727\u6e90\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30eb\u30fc\u30d7<\/figcaption><\/figure><p><strong>\u96fb\u6d41\u4fe1\u53f7\u51fa\u529b\u56de\u8def<\/strong> \u632f\u52d5\u3057\u306b\u304f\u3044\u7406\u7531\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<br \/>\u2714 <strong>\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u7d4c\u8def\u306f\u5185\u90e8\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u9650\u5b9a\u3055\u308c\u308b<\/strong> \uff08\u56f3\u306b\u793a\u3059\u3088\u3046\u306b\uff09 <strong>\u56f33<\/strong>).<br \/>\u2714 <strong>\u5916\u90e8\u8ca0\u8377\u306e\u5909\u52d5\u306f\u4f4d\u76f8\u30b7\u30d5\u30c8\u3084\u30b2\u30a4\u30f3\u306b\u307b\u3068\u3093\u3069\u5f71\u97ff\u3092\u4e0e\u3048\u306a\u3044<\/strong>.<\/p><p>\u5bfe\u7167\u7684\u306b\u3001 <strong>\u96fb\u5727\u51fa\u529b\u56de\u8def<\/strong> \uff08\u56f34\uff09 <strong>\u51fa\u529b\u70b9<\/strong>\u3064\u307e\u308a\u3001 <strong>\u5916\u90e8\u30b1\u30fc\u30d6\u30eb\u3068\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u56de\u8def<\/strong> \u4f4d\u76f8\u30b7\u30d5\u30c8\u3068\u30b2\u30a4\u30f3\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5909\u5316\u3059\u308b\u3068\u3001\u30b7\u30b9\u30c6\u30e0\u306f <strong>\u632f\u52d5\u6761\u4ef6\u3092\u6e80\u305f\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b<\/strong>\u4e0d\u5b89\u5b9a\u5316\u306b\u3064\u306a\u304c\u308b\u3002<\/p><hr \/><h3><strong>5.\u7d50\u8ad6<\/strong><\/h3><p>\u96fb\u5727\u578b\u51fa\u529b\u4fe1\u53f7\u306f\u3001\u4ee5\u4e0b\u306e\u5834\u5408\u306b\u767a\u632f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\u2714 <strong>\u5bc4\u751f\u8981\u7d20\u306f180\u00b0\u306e\u4f4d\u76f8\u30b7\u30d5\u30c8\u3092\u5f15\u304d\u8d77\u3053\u3059\u3002<\/strong><br \/>\u2714 <strong>\u3053\u306e\u4f4d\u76f8\u30b7\u30d5\u30c8\u306b\u304a\u3044\u3066\u3082\u3001\u30eb\u30fc\u30d7\u30b2\u30a4\u30f3\u306f1\u3088\u308a\u5927\u304d\u3044\u307e\u307e\u3067\u3059\u3002<\/strong><\/p><p>\u632f\u52d5\u3092\u907f\u3051\u308b\u305f\u3081\uff1a<br \/>\u2714 <strong>\u4f4d\u76f8\u30b7\u30d5\u30c8\u304c180\u00b0\u306b\u9054\u3059\u308b\u524d\u306b\u3001\u30eb\u30fc\u30d7\u30b2\u30a4\u30f3\u304c0dB\u672a\u6e80\u306b\u4f4e\u4e0b\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong><br \/>\u2714 <strong>\u9001\u96fb\u30b1\u30fc\u30d6\u30eb\u306b\u304a\u3051\u308b\u5bc4\u751f\u5bb9\u91cf\uff0f\u5bc4\u751f\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3002<\/strong><br \/>\u2714 <strong>\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30eb\u30fc\u30d7\u3092\u5b89\u5b9a\u3055\u305b\u308b\u305f\u3081\u306b\u3001\u9069\u5207\u306a\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong><\/p><p>\u5bfe\u7167\u7684\u306b\u3001 <strong>\u96fb\u6d41\u578b\u51fa\u529b<\/strong> \u3088\u308a\u5b89\u5b9a\u3057\u3066\u3044\u308b <strong>\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30eb\u30fc\u30d7\u306f\u5916\u90e8\u8ca0\u8377\u6761\u4ef6\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306b\u304f\u3044<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\u00a0 1.\u56f3 1 \u306b\u793a\u3059\u3088\u3046\u306b\u3001\u96fb\u5727\u4fe1\u53f7\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u306f\u6b21\u306e 3 \u3064\u306e\u4e3b\u8981\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\uff1a\u8ca0\u5e30\u9084\u96fb\u5727\u51fa\u529b\u56de\u8def \u4fe1\u53f7\u4f1d\u9001\u30b1\u30fc\u30d6\u30eb \u5bc4\u751f\u5bb9\u91cf\uff08C1\uff09\u3068\u5bc4\u751f\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\uff08L1\uff09\u3092\u542b\u3080\u3002\u5165\u529b\u4fe1\u53f7\u53d6\u5f97\u56de\u8def \u30ed\u30fc\u30d1\u30b9\u30d5\u30a3\u30eb\u30bf\uff08L2\u3001C2\uff09\u3092\u542b\u3080\u5834\u5408\u304c\u3042\u308b\u30022.\u767a\u632f\u306f\u306a\u305c\u8d77\u3053\u308b\u306e\u304b\uff1f\u8ca0\u5e30\u9084\u96fb\u5727\u4fe1\u53f7\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u5165\u529b\u4fe1\u53f7\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u308b\uff1a\u2223Xi\u2032\u2223=\u2223Xi\u2223-\u2223Xf\u2223|X_i'| = |X_i| - |X_f| \u3057\u304b\u3057\u3001\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u4fe1\u53f7(|Xf|)\u3092 180\u00b0\u4f4d\u76f8\u30b7\u30d5\u30c8\u3059\u308b\u3068\u3001\u5f0f\u306f\u6b21\u306e\u3088\u3046\u306b\u5909\u308f\u308b\uff1a\u2223Xi\u2032\u2223=\u2223Xi\u2223+\u2223Xf\u2223|X_i'| = |X_i| + |X_f| \u3053\u308c\u306f\u3001\u5165\u529b\u4fe1\u53f7\u304c\u5370\u52a0\u3055\u308c\u306a\u304f\u3066\u3082\uff08|Xi| = 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