{"id":74,"date":"2026-01-15T15:51:27","date_gmt":"2026-01-15T06:51:27","guid":{"rendered":"https:\/\/blog.gamtecs.org\/?p=74"},"modified":"2026-01-15T15:51:27","modified_gmt":"2026-01-15T06:51:27","slug":"%e3%82%a2%e3%83%8a%e3%83%ad%e3%82%b0%e3%82%b3%e3%83%b3%e3%83%94%e3%83%a5%e3%83%bc%e3%82%bf%e3%81%a7%e5%bc%be%e9%81%93%e8%a8%88%e7%ae%97%e5%99%a8%e3%82%92%e4%bd%9c%e3%82%8d%e3%81%86-2","status":"publish","type":"post","link":"https:\/\/blog.gamtecs.org\/?p=74","title":{"rendered":"\u30a2\u30ca\u30ed\u30b0\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3067\u5f3e\u9053\u8a08\u7b97\u5668\u3092\u4f5c\u308d\u3046 #2"},"content":{"rendered":"\n

\u3053\u306e\u8a18\u4e8b\u306f\u30b7\u30ea\u30fc\u30ba\u7269\u3067\u3059\uff0e<\/p>\n\n\n\n

\u524d\u56de\u306f\u3053\u3061\u3089<\/a><\/p>\n\n\n\n

1.\u30aa\u30da\u30a2\u30f3\u30d7\u306e\u6f14\u7b97\u56de\u8def<\/h2>\n\n\n\n

\u3055\u3066\uff0c\u524d\u56de\u306f\u30aa\u30da\u30a2\u30f3\u30d7\u306e\u53cd\u8ee2\u56de\u8def\uff0c\u975e\u53cd\u8ee2\u56de\u8def\u306e\u89e3\u6790\u3092\u884c\u3044\u307e\u3057\u305f\uff0e\u3044\u3088\u3044\u3088\u672c\u4e38\u3068\u306a\u308b\uff0c\u8a08\u7b97\u7528\u306e\u6f14\u7b97\u56de\u8def\u306b\u3064\u3044\u3066\u89e3\u6790\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff0e<\/p>\n\n\n\n

\u30fb\u52a0\u7b97\u56de\u8def<\/p>\n\n\n\n

\u4ee5\u4e0b\u306e\u56de\u8def\u306b\u3088\u308a\uff0c\u52a0\u7b97\u3092\u884c\u3044\u307e\u3059\uff1a<\/p>\n\n\n

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

fig1. \u52a0\u7b97\u56de\u8def\u56f3<\/p>\n\n\n\n

\u96fb\u5727\u5165\u529b\u3092\u8907\u6570\u500b\u7528\u610f\u3057\uff0c\u62b5\u6297\u3092\u5165\u308c\u308b\u3053\u3068\u3067\u96fb\u6d41\u3092\u767a\u751f\u3055\u305b\u307e\u3059\uff0e\u3059\u308b\u3068\uff0c\u5e30\u9084\u62b5\u6297R<\/mi>f<\/mi><\/msub>R_f<\/annotation><\/semantics><\/math>\u306b\u6d41\u308c\u308b\u96fb\u6d41\u306f\uff0c\u96fb\u6d41\u5247\u3088\u308a\u5168\u3066\u306e\u5165\u529b\u62b5\u6297\u306b\u304a\u3051\u308b\u96fb\u6d41\u306e\u548c\u3068\u306a\u308a\u307e\u3059\uff0e\u30d9\u30fc\u30b9\u306e\u56de\u8def\u3067\u3042\u308b\u53cd\u8ee2\u5897\u5e45\u56de\u8def\u306b\u304a\u3051\u308b\u51fa\u529b\u96fb\u5727\u306f\uff0cv<\/mi>o<\/mi><\/msub>=<\/mo>\u2212<\/mo>R<\/mi>f<\/mi><\/msub>i<\/mi><\/mrow>v_o=-R_fi<\/annotation><\/semantics><\/math>\u3067\u8868\u3055\u308c\u307e\u3059\u304b\u3089\uff0c<\/p>\n\n\n\n
v<\/mi>o<\/mi><\/msub>=<\/mo>\u2212<\/mo>R<\/mi>f<\/mi><\/msub>i<\/mi>=<\/mo>\u2212<\/mo>R<\/mi>f<\/mi><\/msub>(<\/mo>i<\/mi>1<\/mn><\/msub>+<\/mo>i<\/mi>2<\/mn><\/msub>)<\/mo>=<\/mo>\u2212<\/mo>R<\/mi>f<\/mi><\/msub>(<\/mo>v<\/mi>1<\/mn><\/msub>\/<\/mi>R<\/mi>1<\/mn><\/msub>+<\/mo>v<\/mi>2<\/mn><\/msub>\/<\/mi>R<\/mi>2<\/mn><\/msub>)<\/mo><\/mrow>v_o=-R_fi=-R_f(i_1+i_2)=-R_f(v_1\/R_1+v_2\/R_2)<\/annotation><\/semantics><\/math><\/div>\n\n\n\n
=<\/mo>\u2212<\/mo>[<\/mo>(<\/mo>R<\/mi>f<\/mi><\/msub>\/<\/mi>R<\/mi>1<\/mn><\/msub>)<\/mo>v<\/mi>1<\/mn><\/msub>+<\/mo>(<\/mo>R<\/mi>f<\/mi><\/msub>\/<\/mi>R<\/mi>2<\/mn><\/msub>)<\/mo>v<\/mi>2<\/mn><\/msub>]<\/mo><\/mrow>=-[(R_f\/R_1)v_1+(R_f\/R_2)v_2]<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u3068\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\uff0e\u3053\u3053\u3067\uff0cR<\/mi>f<\/mi><\/msub>=<\/mo>R<\/mi>1<\/mn><\/msub>=<\/mo>R<\/mi>2<\/mn><\/msub><\/mrow>R_f=R_1=R_2<\/annotation><\/semantics><\/math>\u3067\u3042\u308c\u3070\uff0c\u51fa\u529b\u96fb\u5727\u306f\u5358\u306b<\/p>\n\n\n\n
v<\/mi>o<\/mi><\/msub>=<\/mo>\u2212<\/mo>(<\/mo>v<\/mi>1<\/mn><\/msub>+<\/mo>v<\/mi>2<\/mn><\/msub>)<\/mo><\/mrow>v_o=-(v_1+v_2)<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u3068\u306a\u308a\uff0c\u5165\u529b\u96fb\u5727\u306e\u52a0\u7b97\u3068\u306a\u308a\u307e\u3059\uff0e\u7b26\u53f7\u306b\u95a2\u3057\u3066\u306f\uff0c\u52a0\u7b97\u56de\u8def\u306e\u5f8c\u308d\u306b\u53cd\u8ee2\u5897\u5e45\u56de\u8def\u3092\u5165\u308c\u308b\u3053\u3068\u3067\uff0c\u6b63\u5024\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff0e<\/p>\n\n\n\n

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

\u30fb\u5fae\u5206\u56de\u8def<\/p>\n\n\n\n

\u3044\u3088\u3044\u3088\u672c\u30b7\u30ea\u30fc\u30ba\u306e\u672c\u8cea\u3068\u306a\u308b\uff0c\u5fae\u7a4d\u5206\u56de\u8def\u306e\u8a71\u3092\u3057\u3066\u3044\u304d\u307e\u3059\uff0e<\/p>\n\n\n\n

\u5fae\u5206\u56de\u8def\u306f\u4ee5\u4e0b\u306e\u5f62\u3067\u793a\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n

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

fig2. \u5fae\u5206\u56de\u8def\u56f3<\/p>\n\n\n\n

\u30b3\u30f3\u30c7\u30f3\u30b5\u306b\u6d41\u308c\u308b\u96fb\u6d41i<\/mi>c<\/mi><\/msub>i_c<\/annotation><\/semantics><\/math>\u306f\uff0c<\/p>\n\n\n\n
i<\/mi>c<\/mi><\/msub>=<\/mo>C<\/mi>(<\/mo>d<\/mi>v<\/mi>i<\/mi><\/msub>\/<\/mi>d<\/mi>t<\/mi>)<\/mo><\/mrow>i_c=C(dv_i\/dt)<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u3067\u793a\u3055\u308c\u307e\u3059\uff0ei<\/mi>c<\/mi><\/msub>=<\/mo>i<\/mi>R<\/mi><\/msub><\/mrow>i_c=i_R<\/annotation><\/semantics><\/math>\u3067\u3042\u308a\uff0c\u53cd\u8ee2\u5897\u5e45\u56de\u8def\u306e\u51fa\u529b\u96fb\u5727\u304cv<\/mi>o<\/mi><\/msub>=<\/mo>\u2212<\/mo>R<\/mi>i<\/mi><\/mrow>v_o=-Ri<\/annotation><\/semantics><\/math>\u3067\u3042\u308b\u3053\u3068\u3092\u8e0f\u307e\u3048\u308c\u3070\uff0c<\/p>\n\n\n\n
v<\/mi>o<\/mi><\/msub>=<\/mo>\u2212<\/mo>R<\/mi>C<\/mi>(<\/mo>d<\/mi>v<\/mi>i<\/mi><\/msub>\/<\/mi>d<\/mi>t<\/mi>)<\/mo><\/mrow>v_o=-RC(dv_i\/dt)<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u3067\u793a\u3055\u308c\u307e\u3059\uff0e<\/p>\n\n\n\n

\u3000<\/p>\n\n\n\n

\u30fb\u7a4d\u5206\u56de\u8def<\/p>\n\n\n\n

\u540c\u69d8\u306b\uff0c\u7a4d\u5206\u56de\u8def\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u793a\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n\n

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

fig3. \u7a4d\u5206\u56de\u8def\u56f3<\/p>\n\n\n\n

\u3053\u3053\u3067\u62b5\u6297R<\/mi>R<\/annotation><\/semantics><\/math>\u306b\u6d41\u308c\u308b\u96fb\u6d41i<\/mi>R<\/mi><\/msub>i_R<\/annotation><\/semantics><\/math>\u304a\u3088\u3073\u30b3\u30f3\u30c7\u30f3\u30b5\u306b\u6d41\u308c\u308b\u96fb\u6d41i<\/mi>C<\/mi><\/msub>i_C<\/annotation><\/semantics><\/math>\u306f\uff0c<\/p>\n\n\n\n
i<\/mi>R<\/mi><\/msub>=<\/mo>v<\/mi>i<\/mi><\/msub>\/<\/mi>R<\/mi>i<\/mi><\/msub><\/mrow>i_R=v_i\/R_i<\/annotation><\/semantics><\/math><\/div>\n\n\n\n
i<\/mi>C<\/mi><\/msub>=<\/mo>C<\/mi>(<\/mo>d<\/mi>v<\/mi>\/<\/mi>d<\/mi>t<\/mi>)<\/mo>=<\/mo>C<\/mi>(<\/mo>\u2212<\/mo>d<\/mi>v<\/mi>o<\/mi><\/msub>\/<\/mi>d<\/mi>t<\/mi>)<\/mo><\/mrow>i_C=C(dv\/dt)=C(-dv_o\/dt)<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

2\u3064\u306e\u96fb\u6d41\u5024\u306f\u305d\u308c\u305e\u308c\u7b49\u3057\u3044\u306e\u3067\uff0c<\/p>\n\n\n\n

i<\/mi>R<\/mi><\/msub>=<\/mo>i<\/mi>C<\/mi><\/msub><\/mrow>i_R=i_C<\/annotation><\/semantics><\/math><\/div>\n\n\n\n
v<\/mi>1<\/mn><\/msub>\/<\/mi>R<\/mi>i<\/mi><\/msub>=<\/mo>C<\/mi>(<\/mo>\u2212<\/mo>d<\/mi>v<\/mi>o<\/mi><\/msub>\/<\/mi>d<\/mi>t<\/mi>)<\/mo><\/mrow>v_1\/R_i=C(-dv_o\/dt)<\/annotation><\/semantics><\/math><\/div>\n\n\n\n
\u2212<\/mo>(<\/mo>v<\/mi>1<\/mn><\/msub>\/<\/mi>C<\/mi>R<\/mi>i<\/mi><\/msub>)<\/mo>=<\/mo>d<\/mi>v<\/mi>o<\/mi><\/msub>\/<\/mi>d<\/mi>t<\/mi><\/mrow>-(v_1\/CR_i)=dv_o\/dt<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u3068\u306a\u308a\u307e\u3059\uff0e\u4e21\u8fba\u3092\u7a4d\u5206\u3059\u308c\u3070\uff0c<\/p>\n\n\n\n

v<\/mi>o<\/mi><\/msub>=<\/mo>\u2212<\/mo>(<\/mo>1<\/mn>\/<\/mi>C<\/mi>R<\/mi>)<\/mo>\u222b<\/mo>v<\/mi>1<\/mn><\/msub><\/mspace>d<\/mi>t<\/mi><\/mrow>v_o=-(1\/CR)\\int v_1\\,dt<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u3068\u306a\u308a\uff0c\u5165\u529b\u96fb\u5727\u306e\u7a4d\u5206\u5024\u304c\u51fa\u529b\u3068\u306a\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n

\u3068\u3053\u308d\u3067\uff0c\u30aa\u30da\u30a2\u30f3\u30d7\u3092\u4f7f\u308f\u305a\u3068\u3082\u5fae\u7a4d\u5206\u56de\u8def\u3092\u69cb\u6210\u3067\u304d\u308b\u3053\u3068\u3092\u3054\u5b58\u77e5\u306e\u65b9\u306f\u591a\u3044\u3068\u601d\u3044\u307e\u3059\uff0e\u306a\u305c\u30aa\u30da\u30a2\u30f3\u30d7\u3092\u7528\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n

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

fig4. \u7c21\u6613\u306aCR\u7a4d\u5206\u56de\u8def<\/p>\n\n\n\n

\u30aa\u30da\u30a2\u30f3\u30d7\u3092\u4f7f\u3046\u7406\u7531\uff0c\u305d\u308c\u306f\u89e3\u304c\u53b3\u5bc6\u3060\u304b\u3089\u3067\u3059\uff0e\u9006\u306bfig4\u306e\u3088\u3046\u306aCR\u5fae\u7a4d\u5206\u56de\u8def\u3067\u306f\uff0c\u89e3\u304c\u30ac\u30d0\u30de\u30f3\u3059\u304e\u3066\u89e3\u6790\u76ee\u7684\u3067\u306f\u4f7f\u3044\u7269\u306b\u306a\u308a\u307e\u305b\u3093\uff0e<\/p>\n\n\n\n

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

fig4\u306e\u56de\u8def\u306b\u304a\u3044\u3066\uff0c\u51fa\u529b\u96fb\u5727\u306f\u30b3\u30f3\u30c7\u30f3\u30b5\u306b\u5370\u52a0\u3055\u308c\u308b\u96fb\u5727\u3068\u306a\u308a\u307e\u3059\u306d\uff0e\u3057\u304b\u3057\uff0c\u3053\u306e\u56de\u8def\u306fLPF\u3068\u540c\u69d8\u306e\u50cd\u304d\u3092\u3057\u307e\u3059\u304b\u3089\uff0c\u6642\u9593\u7d4c\u904e\u3068\u3068\u3082\u306b\u4f4e\u5468\u6ce2\u306e\u6210\u5206\u304c\u76ee\u7acb\u3064\u3053\u3068\u306b\u306a\u308a\u307e\u3059\uff0e\u3053\u3053\u3067CR\u7a4d\u5206\u56de\u8def\u306b\u304a\u3051\u308b\u4f1d\u9054\u95a2\u6570\u3092\u8003\u3048\u308b\u3068\uff0c<\/p>\n\n\n\n

H<\/mi>(<\/mo>j<\/mi>\u03c9<\/mi>)<\/mo>=<\/mo>1<\/mn>\/<\/mi>j<\/mi>\u03c9<\/mi>C<\/mi>R<\/mi>+<\/mo>1<\/mn><\/mrow>H(j\u03c9)=1\/j\u03c9CR+1 <\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u3067\u3059\u304c\uff0c\u03c9<\/mi>=<\/mo>2<\/mn>\u03c0<\/mi>f<\/mi><\/mrow>\u03c9=2\u03c0f<\/annotation><\/semantics><\/math>\u3068\u3057\u3066\uff0cf<\/mi>f<\/annotation><\/semantics><\/math>\u304c\u5341\u5206\u306b\u4f4e\u5468\u6ce2\u3067\u3042\u3063\u305f\u5834\u5408(\u03c9<\/mi>\u226a<\/mo>1<\/mn><\/mrow>\u03c9\\ll1<\/annotation><\/semantics><\/math>)\uff0c<\/p>\n\n\n\n
H<\/mi>(<\/mo>j<\/mi>\u03c9<\/mi>)<\/mo>\u2248<\/mo>1<\/mn><\/mrow>H(j\u03c9)\\approx1<\/annotation><\/semantics><\/math><\/div>\n\n\n\n

\u3068\u306a\u308a\u307e\u3059\u304b\u3089\uff0c\u6642\u9593\u7d4c\u904e\u306b\u3088\u3063\u3066\uff0cfig4\u306e\u3088\u3046\u306a\u56de\u8def\u306e\u7a4d\u5206\u7d50\u679c\u306f\uff0c\u771f\u306e\u7d50\u679c\u304b\u3089\u4e56\u96e2\u3057\u3066\u3086\u304f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\uff0e\u304a\u4e16\u8f9e\u306b\u3082\u53b3\u5bc6\u306a\u8a08\u7b97\u7d50\u679c\u3092\u63d0\u4f9b\u3057\u3066\u304f\u308c\u308b\u3068\u306f\u8a00\u3048\u306a\u3044\u308f\u3051\u3067\u3059\uff0e<\/p>\n\n\n\n

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

\u3055\u3066\uff0c\u6b21\u56de\u306f\u3053\u308c\u3089\u306e\u56de\u8def\u3092\u5fdc\u7528\u3057\u3066\uff0c\u3044\u3088\u3044\u3088\u30a2\u30ca\u30ed\u30b0\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3092\u7d44\u3093\u3067\u307f\u307e\u3057\u3087\u3046\uff0e<\/p>\n\n\n\n

\u30b7\u30df\u30e5\u30ec\u30fc\u30bf\u306b\u3088\u308b\u88fd\u4f5c\u3068\u306a\u308a\u307e\u3059\uff0e<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

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