{"id":214056,"date":"2024-10-14T00:36:19","date_gmt":"2024-10-14T00:36:19","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/?p=214056"},"modified":"2024-10-14T00:36:19","modified_gmt":"2024-10-14T00:36:19","slug":"%e5%9b%9e%e8%b7%af%e3%81%a7%e3%83%88%e3%83%a9%e3%83%b3%e3%82%b8%e3%82%b9%e3%82%bf%e3%82%92%e3%82%b9%e3%82%a4%e3%83%83%e3%83%81%e3%81%a8%e3%81%97%e3%81%a6%e4%bd%bf%e3%81%86%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e5%9b%9e%e8%b7%af%e3%81%a7%e3%83%88%e3%83%a9%e3%83%b3%e3%82%b8%e3%82%b9%e3%82%bf%e3%82%92%e3%82%b9%e3%82%a4%e3%83%83%e3%83%81%e3%81%a8%e3%81%97%e3%81%a6%e4%bd%bf%e3%81%86%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u56de\u8def\u3067\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u4f7f\u3046\u65b9\u6cd5"},"content":{"rendered":"<p class=\"sidekick\">\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306e\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u89e3\u8aac\u3002\u56de\u8def\u3067\u306e\u5f79\u5272\u3001\u57fa\u672c\u7684\u306a\u52d5\u4f5c\u539f\u7406\u3001\u5b9f\u88c5\u624b\u9806\u3092\u521d\u5fc3\u8005\u5411\u3051\u306b\u308f\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h2>\u56de\u8def\u3067\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u4f7f\u3046\u65b9\u6cd5<\/h2>\n<p>\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306f\u3001\u73fe\u4ee3\u306e\u96fb\u5b50\u6a5f\u5668\u306b\u306f\u6b20\u304b\u305b\u306a\u3044\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3042\u308a\u3001\u7279\u306b\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u57fa\u672c\u7684\u306a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306e\u57fa\u672c\u69cb\u9020\u3068\u52d5\u4f5c\u539f\u7406<\/h2>\n<p>\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306b\u306f\u4e3b\u306b2\u3064\u306e\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\uff1aNPN\u578b\u3068PNP\u578b\u3067\u3059\u3002\u3069\u3061\u3089\u30823\u3064\u306e\u7aef\u5b50\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n<p><u1><\/p>\n<li>\u30a8\u30df\u30c3\u30bf\uff08E\uff09<\/li>\n<li>\u30d9\u30fc\u30b9\uff08B\uff09<\/li>\n<li>\u30b3\u30ec\u30af\u30bf\uff08C\uff09<\/li>\n<p><\/u1><\/p>\n<p>NPN\u578b\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u4f8b\u306b\u3068\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3057\u307e\u3059\uff1a<\/p>\n<p><o1><\/p>\n<li>\u30d9\u30fc\u30b9\u96fb\u6d41\uff08I<sub>B<\/sub>\uff09\u304c\u6d41\u308c\u308b\u3068\u3001\u30a8\u30df\u30c3\u30bf\u3068\u30b3\u30ec\u30af\u30bf\u306e\u9593\u306b\u96fb\u6d41\uff08I<sub>C<\/sub>\uff09\u304c\u6d41\u308c\u308b\u3002<\/li>\n<li>\u30a8\u30df\u30c3\u30bf\u96fb\u6d41\uff08I<sub>E<\/sub>\uff09\u306f\u3001\u30d9\u30fc\u30b9\u96fb\u6d41\u3068\u30b3\u30ec\u30af\u30bf\u96fb\u6d41\u306e\u5408\u8a08\u3067\u3059\uff08I<sub>E<\/sub> = I<sub>B<\/sub> + I<sub>C<\/sub>\uff09\u3002<\/li>\n<p><\/o1><\/p>\n<p>\u3064\u307e\u308a\u3001\u30d9\u30fc\u30b9\u306b\u5c11\u3057\u306e\u96fb\u6d41\u3092\u6d41\u3059\u3053\u3068\u3067\u3001\u30a8\u30df\u30c3\u30bf\u3068\u30b3\u30ec\u30af\u30bf\u306e\u9593\u306b\u5927\u304d\u306a\u96fb\u6d41\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u4f7f\u3046\u57fa\u672c\u56de\u8def<\/h2>\n<p>\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u57fa\u672c\u56de\u8def\u3092\u7d44\u307f\u307e\u3059\uff1a<\/p>\n<p><u1><\/p>\n<li>NPN\u578b\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306e\u30a8\u30df\u30c3\u30bf\u3092GND\uff08\u30b0\u30e9\u30a6\u30f3\u30c9\uff09\u306b\u63a5\u7d9a<\/li>\n<li>\u30b3\u30ec\u30af\u30bf\u306b\u8ca0\u8377\uff08\u4f8b\u3048\u3070LED\uff09\u3092\u63a5\u7d9a<\/li>\n<li>\u30d9\u30fc\u30b9\u306b\u62b5\u6297\u3092\u4ecb\u3057\u3066\u5236\u5fa1\u4fe1\u53f7\u3092\u63a5\u7d9a<\/li>\n<p><\/u1><\/p>\n<p>\u30d9\u30fc\u30b9\u306b\u6b63\u306e\u96fb\u5727\u3092\u304b\u3051\u3066\u3044\u308b\u5834\u5408\uff08I<sub>B<\/sub>\u304c\u6d41\u308c\u3066\u3044\u308b\u72b6\u614b\uff09\u3001\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306f\u300c\u30aa\u30f3\u300d\u3068\u306a\u308a\u3001\u30b3\u30ec\u30af\u30bf\u3068\u30a8\u30df\u30c3\u30bf\u306e\u9593\u306b\u96fb\u6d41\u304c\u6d41\u308c\u3066\u8ca0\u8377\u304c\u52d5\u4f5c\u3057\u307e\u3059\u3002\u30d9\u30fc\u30b9\u306b\u96fb\u5727\u304c\u304b\u304b\u3063\u3066\u3044\u306a\u3044\u5834\u5408\uff08I<sub>B<\/sub>\u304c\u6d41\u308c\u3066\u3044\u306a\u3044\u72b6\u614b\uff09\u3001\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306f\u300c\u30aa\u30d5\u300d\u3068\u306a\u308a\u3001\u96fb\u6d41\u306f\u6d41\u308c\u307e\u305b\u3093\u3002<\/p>\n<h2>\u56de\u8def\u306e\u8a08\u7b97\u4f8b<\/h2>\n<p>\u4eee\u306b\u3001\u6b21\u306e\u3088\u3046\u306a\u6761\u4ef6\u306e\u5834\u5408\u3092\u8003\u3048\u307e\u3059\uff1a<\/p>\n<p><u1><\/p>\n<li>\u96fb\u6e90\u96fb\u5727\uff08V<sub>CC<\/sub>\uff09= 12V<\/li>\n<li>\u8ca0\u8377\uff08LED and \u62b5\u6297\uff09= 220\u03a9<\/li>\n<li>\u30d9\u30fc\u30b9\u62b5\u6297\uff08R<sub>B<\/sub>\uff09= 10k\u03a9<\/li>\n<p><\/u1><\/p>\n<p>\u30d9\u30fc\u30b9\u96fb\u6d41I<sub>B<\/sub>\u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\uff1a<\/p>\n<p>\\[<br \/>\nI_B = \\frac{V_{in} &#8211; V_{BE}}{R_B}<br \/>\n\\]<\/p>\n<p>\u3053\u3053\u3067\u3001V<sub>in<\/sub>\u306f\u30d9\u30fc\u30b9\u306b\u304b\u304b\u308b\u96fb\u5727\uff08\u901a\u5e38\u3001\u7d045V\uff09\u3001V<sub>BE<\/sub>\u306f\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306e\u30d9\u30fc\u30b9-\u30a8\u30df\u30c3\u30bf\u9593\u96fb\u5727\uff08\u901a\u5e38\u3001\u7d040.7V\uff09\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\uff1a<\/p>\n<p>\\[<br \/>\nI_B = \\frac{5V &#8211; 0.7V}{10k\\Omega} \\approx 0.43mA<br \/>\n\\]<\/p>\n<p>\u6b21\u306b\u3001\u30b3\u30ec\u30af\u30bf\u96fb\u6d41I<sub>C<\/sub>\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002I<sub>C<\/sub>\u306f\u30d9\u30fc\u30b9\u96fb\u6d41\u306e\u5897\u5e45\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3042\u308a\u3001\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306e\u96fb\u6d41\u5897\u5e45\u7387\uff08h<sub>FE<\/sub>\u307e\u305f\u306f\u03b2\uff09\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u4eee\u306bh<sub>FE<\/sub> = 100\u306e\u5834\u5408\uff1a<\/p>\n<p>\\[<br \/>\nI_C = h_{FE} * I_B = 100 * 0.43mA = 43mA<br \/>\n\\]<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u4f7f\u3063\u3066\u56de\u8def\u3092\u5236\u5fa1\u3059\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u5229\u7528\u3059\u308b\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u3068\u3001\u7c21\u5358\u306a\u8a08\u7b97\u4f8b\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3092\u57fa\u306b\u3001\u69d8\u3005\u306a\u96fb\u5b50\u56de\u8def\u3067\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u52b9\u679c\u7684\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u3057\u3066\u306f\u3001\u5b9f\u969b\u306b\u56de\u8def\u3092\u7d44\u3093\u3067\u307f\u3066\u3001\u52d5\u4f5c\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306e\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u89e3\u8aac\u3002\u56de\u8def\u3067\u306e\u5f79\u5272\u3001\u57fa\u672c\u7684\u306a\u52d5\u4f5c\u539f\u7406\u3001\u5b9f\u88c5\u624b\u9806\u3092\u521d\u5fc3\u8005\u5411\u3051\u306b\u308f\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[102],"tags":[],"class_list":["post-214056","post","type-post","status-publish","format-standard","hentry","category-102","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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