{"id":7024,"date":"2023-06-17T10:02:42","date_gmt":"2023-06-17T14:02:42","guid":{"rendered":"http:\/\/marktechopto.flywheelsites.com\/?p=7024"},"modified":"2026-07-31T16:36:15","modified_gmt":"2026-07-31T20:36:15","slug":"operating-leds-statically-or-dynamically","status":"publish","type":"post","link":"https:\/\/optrans.com\/ja\/led%E3%81%AE%E9%9D%99%E7%9A%84%E7%82%B9%E7%81%AF%E3%81%A8%E3%83%80%E3%82%A4%E3%83%8A%E3%83%9F%E3%83%83%E3%82%AF%E7%82%B9%E7%81%AF\/","title":{"rendered":"LED\u306e\u9759\u7684\u99c6\u52d5\u3068\u52d5\u7684\u99c6\u52d5"},"content":{"rendered":"
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\"\"<\/p>

\u56f37\uff08a\uff09\u30fb\uff08b\uff09\uff1a\u9759\u7684\u70b9\u706f\u3068\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f\u306e\u99c6\u52d5\u4f8b<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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LED\u306e\u70b9\u706f\u65b9\u6cd5\u306b\u306f2\u7a2e\u985e\u3042\u308a\u307e\u3059\u3002\u4e00\u5b9a\u306e\u96fb\u6d41\u3092\u9023\u7d9a\u3057\u3066\u6d41\u3057\u7d9a\u3051\u308b\u9759\u7684\u70b9\u706f\u3068\u3001\u96fb\u6d41\u3092\u30aa\u30f3\u30fb\u30aa\u30d5\u306e\u9023\u7d9a\u3057\u305f\u30d1\u30eb\u30b9\u3067\u6d41\u3059\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f\u3067\u3059\u3002\u30aa\u30f3\u30fb\u30aa\u30d5\u306e\u9593\u9694\u304c\u77ed\u3051\u308c\u3070\u3001\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f\u3082\u4eba\u9593\u306e\u76ee\u306b\u306f\u9759\u7684\u70b9\u706f\u3068\u540c\u3058\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002\u56f37\u306f\u3001\u9759\u7684\u70b9\u706f\u3068\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f\u306e\u52d5\u4f5c\u3092\u6bd4\u8f03\u3057\u305f\u3082\u306e\u3067\u3001\u305d\u308c\u305e\u308c\u3092\u4f7f\u3063\u305f\u5b9f\u969b\u306e\u56de\u8def\u306e\u5b9a\u6570\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>

\"\"<\/p>

\u56f37\uff08a\uff09\u30fb\uff08b\uff09\uff1a\u9759\u7684\u70b9\u706f\u3068\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f\u306e\u99c6\u52d5\u4f8b<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u70b9\u706f\u65b9\u5f0f\u306e\u9078\u3073\u65b9<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u9759\u7684\u70b9\u706f\u3068\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f\u306f\u3001\u4e3b\u306b\u6b21\u306e\u3088\u3046\u306a\u7528\u9014\u3067\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>

\u7528\u9014<\/th>\u6307\u5411\u89d2 2\u03b81\/2<\/th><\/tr><\/thead>
\u9ad8\u8f1d\u5ea6LED\u60c5\u5831\u8868\u793a\u677f<\/td>15\u00b0\uff5e30\u00b0<\/td><\/tr>
\u4fe1\u53f7\u7528\u9014<\/td>8\u00b0\uff5e30\u00b0<\/td><\/tr>
\u4f4e\u8f1d\u5ea6LED\u60c5\u5831\u8868\u793a\u677f<\/td>30\u00b0\uff5e120\u00b0<\/td><\/tr>
\u72ed\u6307\u5411\u6027\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u30fc<\/td>30\u00b0\uff5e60\u00b0<\/td><\/tr>
\u5e83\u6307\u5411\u6027\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u30fc<\/td>60\u00b0\uff5e120\u00b0<\/td><\/tr>
\u81ea\u52d5\u8eca\u7528\u30b9\u30c8\u30c3\u30d7\u30e9\u30f3\u30d7<\/td>20\u00b0\uff5e50\u00b0<\/td><\/tr>
\u81ea\u52d5\u8eca\u7528\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\uff08\u72ed\u6307\u5411\u6027\uff09<\/td>20\u00b0\uff5e60\u00b0<\/td><\/tr>
\u81ea\u52d5\u8eca\u7528\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\uff08\u5e83\u6307\u5411\u6027\uff09<\/td>60\u00b0\uff5e120\u00b0<\/td><\/tr>
\u81ea\u52d5\u8eca\u7528\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\uff08\u5e83\u6307\u5411\u6027\uff09<\/td>60\u00b0\uff5e120\u00b0<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f\u306e\u5468\u6ce2\u6570<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f\u3092\uff08\u9759\u6b62\u3057\u3066\u3044\u308b\u89b3\u5bdf\u8005\u306b\uff09\u9023\u7d9a\u3057\u3066\u70b9\u706f\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u305b\u308b\u306b\u306f\u3001\u9ad8\u3044\u5468\u6ce2\u6570\u3067\u70b9\u706f\u3055\u305b\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u70b9\u706f\u5468\u6ce2\u6570\u304c\u3042\u308b\u5024\u3092\u4e0b\u56de\u308b\u3068\u3001\u8089\u773c\u3067\u3061\u3089\u3064\u304d\u304c\u611f\u3058\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>

\uff08\u73fe\u5728\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\uff09\u6b63\u5f26\u6ce2\u70b9\u706f\u3084\u77e9\u5f62\u6ce2\u70b9\u706f\u306e\u5834\u5408\u3001\u5468\u6ce2\u6570\u304c50Hz\u3092\u4e0b\u56de\u308b\u3068\u3061\u3089\u3064\u304d\u304c\u73fe\u308c\u300140Hz\u524d\u5f8c\u3067\u306f\u70b9\u6ec5\u304c\u306f\u3063\u304d\u308a\u898b\u3048\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u554f\u984c\u3092\u907f\u3051\u308b\u306b\u306f\u3001100Hz\u4ee5\u4e0a\u306e\u70b9\u706f\u5468\u6ce2\u6570\u3092\u9078\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>

\u89b3\u5bdf\u8005\u304c\u63fa\u308c\u3066\u3044\u308b\u5834\u5408\uff08\u8eca\u306b\u4e57\u3063\u3066\u3044\u308b\u3001\u6b69\u3044\u3066\u3044\u308b\u306a\u3069\uff09\u3084\u3001\u4f55\u3089\u304b\u306e\u30ab\u30e1\u30e9\u3067\u64ae\u5f71\u3055\u308c\u308b\u5834\u5408\u306f\u3001\u70b9\u706f\u5468\u6ce2\u6570\u304c\u304b\u306a\u308a\u9ad8\u304f\u3066\u3082\u3061\u3089\u3064\u304d\u304c\u76ee\u7acb\u3061\u307e\u3059\u3002\u70b9\u706f\u5468\u6ce2\u6570\u306f\u7528\u9014\u306b\u5fdc\u3058\u3066\u9078\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u9759\u7684\u70b9\u706f<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
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\u56f37\uff08a\uff09\u306e\u56de\u8def\u306f\u3001\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u30fc\u3068\u3057\u3066\u4f7f\u3046LED\u30e9\u30f3\u30d7\u306e\u9759\u7684\u70b9\u706f\u306e\u4f8b\u3067\u3059\u3002LED\u30e9\u30f3\u30d7\u306e\u7279\u6027\u306f\u3001\u672c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ac\u30a4\u30c9\u306e\u672b\u5c3e\u306b\u3042\u308b\u4ed8\u9332\u306e\u6280\u8853\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002<\/p>

\u8ab2\u984c\uff1aLED\u30e9\u30f3\u30d7\u3092\u9806\u65b9\u5411\u96fb\u6d4110mA\u3067\u70b9\u706f\u3055\u305b\u308b\u5834\u5408\u3001LED\u30e9\u30f3\u30d7\u306e\u7279\u6027\u56f3\uff08\u9806\u65b9\u5411\u96fb\u5727\uff0d\u9806\u65b9\u5411\u96fb\u6d41\uff09\u3092\u4f7f\u3063\u3066\u9806\u65b9\u5411\u96fb\u5727\uff08\u7d042V\u306b\u306a\u308b\u306f\u305a\u3067\u3059\uff09\u3092\u6c42\u3081\u307e\u3059\u3002<\/p>

\u8a2d\u8a08\uff1a\u56f37\u306e\u3088\u3046\u306b\u96fb\u6e90\u96fb\u5727\uff08Vcc\uff09\u30925V\u3001\u62b5\u6297\u3092R\u3068\u3059\u308b\u3068\u3001\u96fb\u5727\u964d\u4e0bVr\u306f\u3001Vr = Vcc \u2013\uff08\u9806\u65b9\u5411\u96fb\u5727\uff09= 5.0 \u2013 2.0 = 3.0V\u3068\u306a\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u62b5\u6297\u306b10mA\u306e\u96fb\u6d41\u3092\u6d41\u3059\u5834\u5408\u3001\u62b5\u6297R\u306f\u3001R = 3V\/10mA = 300\u03a9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>

\u78ba\u8a8d\uff1a\u62b5\u6297R\u3092\u8a08\u7b97\u3057\u305f\u3089\u3001\u6b21\u306e\u70b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>

\u96fb\u6e90\u96fb\u5727\u304c\u5909\u52d5\u3057\u3066\u3082\u554f\u984c\u306f\u306a\u3044\u304b\u3002R\u306e\u5024\u306b\u306f\u3001\u62b5\u6297\u306eE\u7cfb\u5217\u306e\u4e2d\u3067\u6700\u3082\u8fd1\u3044\u62b5\u6297\u5024\u3092\u9078\u3073\u307e\u3059\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t

\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

\u30c0\u30a4\u30ca\u30df\u30c3\u30af\uff08\u30d1\u30eb\u30b9\uff09\u70b9\u706f\u306b\u306f\u3001\u4e00\u822c\u306b\u30d0\u30a4\u30dd\u30fc\u30e9\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3001FET\u3001\u5c02\u7528IC\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002\u56f37\uff08b\uff09\u306e\u56de\u8def\u306f\u30d1\u30eb\u30b9\u70b9\u706f\u306e\u4f8b\u3067\u3059\u3002\u56de\u8def\u306b\u4f7f\u3046\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306f2SA1298(Y)\u3001LED\u30e9\u30f3\u30d7\u306e\u9806\u65b9\u5411\u96fb\u6d41\u306f80mA\u3001\u96fb\u6e90\u96fb\u5727\uff08Vcc\uff09\u306f5V\u3067\u3059\u3002<\/p>

\"\"<\/p>

\u56f313\uff1a2SA1298\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306e\u7279\u6027<\/p>

\u8ab2\u984c\uff1a\u56f313\u306e\u7279\u6027\u66f2\u7dda\u304b\u3089\u3001\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306e\u30b3\u30ec\u30af\u30bf\u96fb\u6d41\uff08Ic\uff0980mA\u306b\u5bfe\u3059\u308b\u30d9\u30fc\u30b9\u96fb\u6d41\uff08Ib\uff09\u306f\u7d041mA\u3067\u3059\u3002\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306e\u96fb\u5727Vbe\u306f\u901a\u5e380.7V\u306a\u306e\u3067\u3001\u56f37\uff08b\uff09\u306e\u56de\u8def\u306e\u62b5\u6297Rb\u306f\u3001Rb = (5 \u2013 0.7)V\/1mA = 4.3k\u03a9\u3068\u306a\u308a\u307e\u3059\u3002\u56de\u8def\u3092\u5b89\u5b9a\u3055\u305b\u308b\u305f\u3081\u306bIb\u30922mA\u306b\u3059\u308b\u3068\u3001Rb = (5 \u2013 0.7)V\/2mA = 2.15k\u03a9\u3068\u306a\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u30012.2k\u03a9\u306e\u62b5\u6297\u304c\u9069\u5207\u3067\u3059\u3002<\/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":"

An LED can be lit using one of two methods: the static lighting method, in which a constant current is input continually over time, and the dynamic lighting method in which current is fed in continuous ON-OFF pulses. When the ON-OFF intervals are short, dynamic lighting appears to the human eye as static lighting. Figure 7 shows an operational comparison between static lighting and dynamic lighting, showing the constants for real circuits using static lighting and dynamic lighting. Figure 7 (a) and (b) – Static lighting and dynamic lighting drive examples. An LED can be lit using one of two methods: the static lighting method, in which a constant current […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50],"tags":[],"class_list":["post-7024","post","type-post","status-publish","format-standard","hentry","category-application-notes"],"yoast_head":"\nStatic vs. Dynamic LED Driving: Circuits & Flicker - Optrans<\/title>\n<meta name=\"description\" content=\"Compare static and dynamic (pulse) LED drive methods\u2014including resistor calculations and the minimum frequency to avoid flicker.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/optrans.com\/ja\/led\u306e\u9759\u7684\u70b9\u706f\u3068\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u70b9\u706f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Static vs. Dynamic LED Driving: Circuits & Flicker - 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