\u76f4\u6d41\u306f\u6d41\u308c\u308b\u96fb\u6d41(\u96fb\u5727)\u304c\u305a\u3063\u3068\u4e00\u5b9a\u306a\u30a4\u30e1\u30fc\u30b8\u3067\u3001\u4ea4\u6d41\u306f\u96fb\u6d41(\u96fb\u5727) \u304c\u6642\u9593\u3067\u5909\u5316\u3059\u308b\u30a4\u30e1\u30fc\u30b8\u306b\u306a\u308a\u307e\u3059\u3002\u56f3\u3067\u8868\u3059\u3068\u4e0b\u8a18\u306e\u901a\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n
![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/ACDC-1.png\")
\u57fa\u672c\u7684\u306b\u96fb\u5b50\u5de5\u4f5c\u3067\u7528\u3044\u308b\u96fb\u6e90\u3068\u3057\u3066\u306fDC\u96fb\u6e90\u3092\u4f7f\u7528\u3057\u3066\u304a\u308a\u3001\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3092\u7528\u3044\u305f\u96fb\u6e90\u3082\u305d\u306e\u4e00\u7a2e\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
DC\u96fb\u6e90<\/h3>\n\n\n\n
\u5148\u7a0b\u8ff0\u3079\u305fDC\u96fb\u6e90\u306f\u4e3b\u306b2\u7a2e\u985e\u306e\u65b9\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
- \n
- \u30c9\u30ed\u30c3\u30d7\u65b9\u5f0f<\/li>\n\n\n\n
- SW(\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0)\u65b9\u5f0f<\/li>\n<\/ol>\n\n\n\n
\u30c9\u30ed\u30c3\u30d7\u5f0f\u96fb\u6e90\u306b\u95a2\u3057\u3066<\/strong><\/span><\/span><\/p>\n\n\n\n
\u30c9\u30ed\u30c3\u30d7\u5f0f\u96fb\u6e90\u306f\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3084FET\u7b49\u306e\u80fd\u52d5\u7d20\u5b50\u3092\u4f7f\u3063\u3066\u3001\u96fb\u5727\u53ca\u3073\u96fb\u6d41\u5024\u3092\u5236\u5fa1\u3059\u308b\u65b9\u5f0f\u306b\u306a\u308a\u307e\u3059\u3002\u52d5\u4f5c\u3068\u3057\u3066\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u5236\u5fa1\u4fe1\u53f7\u3092\u5143\u306b\u96fb\u5727Vo<\/sub>\u53ca\u3073\u96fb\u6d41Io<\/sub>\u3092\u5236\u5fa1\u81f4\u3057\u307e\u3059\u3002\u3053\u306e\u6642Vin<\/sub>\u304b\u3089Vo<\/sub>\u3078\u5909\u5316\u3055\u305b\u308b\u969b\u306b\u5fc5\u305a\u96fb\u5727\u964d\u4e0b\u304c\u751f\u3058\u308b\u70ba\u3001\u30c9\u30ed\u30c3\u30d7\u65b9\u5f0f\u96fb\u6e90\u3068\u547c\u3070\u308c\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/drop-1.png\")
\u30c9\u30ed\u30c3\u30d7\u65b9\u5f0f\u96fb\u6e90 \u30a4\u30e1\u30fc\u30b8<\/figcaption><\/figure>\n<\/div>\n\n\n \u3053\u306e\u65b9\u5f0f\u306f\u56de\u8def\u304c\u5358\u7d14\u3067\u3001\u51fa\u529b\u306b\u30ce\u30a4\u30ba\u7b49\u3082\u4ea4\u3058\u308a\u306b\u304f\u3044\u3068\u3044\u3063\u305f\u30e1\u30ea\u30c3\u30c8<\/span><\/span>\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u96fb\u5727\u964d\u4e0b\u306b\u3088\u308b\u640d\u5931\u304c\u5927\u304d\u304f\u3001\u96fb\u529b\u52b9\u7387\u304c\u60aa\u3044\u3067\u3059\u3002<\/span>(\u5927\u4f5350\uff5e60%\u306e\u7bc4\u56f2\u304c\u591a\u3044\u3088\u3046\u306a\u6c17\u304c\u3057\u307e\u3059\u3002\u8a2d\u8a08\u65b9\u5f0f\u306b\u3088\u308a\u524d\u5f8c\u3057\u307e\u3059\u3002)<\/p>\n\n\n\n
\u307e\u305f\u5927\u578b\u306b\u306a\u308c\u3070\u306a\u308b\u307b\u3069\u653e\u71b1\u8a2d\u8a08\u7b49\u3082\u6025\u6fc0\u306b\u5927\u304d\u304f\u306a\u308b\u306e\u3067(\u6d88\u8cbb\u96fb\u529b\u306f\u96fb\u6d41\u306e2\u4e57\u306b\u6bd4\u4f8b\u3059\u308b)\u3053\u306e\u65b9\u5f0f\u306e\u96fb\u6e90\u306f\u5c0f\u578b\u306e\u96fb\u6e90\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30a4\u30e1\u30fc\u30b8\u304c\u3042\u308a\u307e\u3059\u3002\u3088\u304f\u5b9f\u9a13\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u5b89\u5b9a\u5316\u96fb\u6e90\u7b49\u306f\u3053\u306e\u65b9\u5f0f\u306e\u96fb\u6e90\u304c\u591a\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3067\u4f5c\u6210\u3059\u308b\u96fb\u6e90\u306f\u3053\u306e\u65b9\u5f0f\u306e\u96fb\u6e90\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
SW(\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0)\u65b9\u5f0f\u306b\u95a2\u3057\u3066<\/strong><\/span><\/p>\n\n\n\n
SW(\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0)\u65b9\u5f0f\u306f\u3001\u30c9\u30ed\u30c3\u30d7\u65b9\u5f0f\u306e\u96fb\u6e90\u3068\u540c\u3058\u3088\u3046\u306b\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3084FET\u3092\u4f7f\u3046\u3053\u3068\u306f\u540c\u3058\u306a\u306e\u3067\u3059\u304c\u3001\u5236\u5fa1\u65b9\u6cd5\u304c\u5c11\u3057\u9055\u3063\u3066\u304a\u308a\u3001\u4e0b\u8a18\u306b\u793a\u3059\u3088\u3046\u306b\u5236\u5fa1\u4fe1\u53f7\u3092\u9ad8\u901f\u306b\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u3067\u5236\u5fa1\u3057\u3001\u305d\u306e\u51fa\u529b\u3092\u30d5\u30a3\u30eb\u30bf\u30fc\u3067\u306a\u307e\u3089\u305b\u3066\u76f4\u6d41\u306b\u3059\u308b\u65b9\u5f0f\u3092\u4f7f\u3063\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/SW-3.png\")
SW(\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0)\u65b9\u5f0f\u96fb\u6e90 \u30a4\u30e1\u30fc\u30b8<\/figcaption><\/figure>\n<\/div>\n\n\n \u3053\u306e\u65b9\u5f0f\u306f\u5c11\u3057\u69cb\u9020\u304c\u8907\u96d1\u306b\u306a\u308a\u3001\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30ce\u30a4\u30ba\u3068\u3044\u3063\u305f\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u5468\u6ce2\u6570\u306b\u4f9d\u5b58\u3057\u305f\u30ce\u30a4\u30ba\u304c\u767a\u751f\u3057\u3084\u3059\u3044\u3067\u3059\u304c\u3001\u96fb\u529b\u52b9\u7387\u304c\u975e\u5e38\u306b\u9ad8\u3044(\u5927\u4f5390%\u304f\u3089\u3044)<\/span><\/span>\u306e\u304c\u6700\u5927\u306e\u5229\u70b9\u3067\u3042\u308a\u3001\u5927\u578b\u306e\u96fb\u6e90\u3092\u4f5c\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n
\u307e\u305f\u56de\u8def\u69cb\u9020\u306b\u3088\u308a\u307e\u3059\u304c\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u6607\u5727\u578b\u3001\u964d\u5727\u578b\u3001\u6607\u964d\u5727\u578b\u3068\u3044\u3046\u3088\u3046\u306b\u5165\u529b\u96fb\u5727\u4ee5\u4e0a\u306e\u96fb\u5727\u3082\u51fa\u529b\u51fa\u6765\u308b\u3082\u306e\u3082\u4f5c\u308b\u4e8b\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n
\u30d5\u30a3\u30eb\u30bf\u30fc\u56de\u8def\u306b\u95a2\u3057\u3066\u306f\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u306e\u9ad8\u5468\u6ce2\u6210\u5206\u3092\u5438\u53ce\u3057\u3066\u76f4\u6d41\u51fa\u529b\u306b\u8fd1\u3065\u3051\u308b\u52d5\u4f5c\u3092\u884c\u3063\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3068\u306f<\/h2>\n\n\n\n
\u4e0a\u8a18\u306e\u5185\u5bb9\u3092\u3075\u307e\u3048\u3066\u3001\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3068\u306f\u4e09\u672c\u306e\u7aef\u5b50\u3092\u6301\u3063\u305f\u30c9\u30ed\u30c3\u30d7\u5f0f\u96fb\u6e90IC\u306e\u4e8b\u3067\u3042\u308a\u3001\u7c21\u5358\u306b\u76f4\u6d41\u96fb\u5727\u3092\u4f5c\u308a\u51fa\u3059\u4e8b\u304c\u51fa\u6765\u308b\u7d20\u5b50\u306b\u306a\u308a\u307e\u3059\u3002\u3061\u306a\u307f\u306b\u3067\u3059\u304c\u3001\u57fa\u672c\u7684\u306b\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u306f\u5b9a\u96fb\u5727\u3092\u4f5c\u308a\u51fa\u3059\u7d20\u5b50\u306a\u306e\u3067\u3001\u5b9a\u96fb\u6d41\u3092\u4f5c\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
\u5916\u89b3\u306f\u4e0b\u8a18\u306e\u901a\u308a\u306b\u306a\u308a\u3001\u6587\u5b57\u901a\u308a\u4e09\u672c\u306e\u7aef\u5b50\u3092\u6709\u3057\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/santansi.png\")
\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf
\u5916\u89b3\u30a4\u30e1\u30fc\u30b8\u56f3<\/figcaption><\/figure>\n<\/div>\n\n\n\u4e09\u672c\u306e\u7aef\u5b50\u306f\u5404\u3005\u5165\u529b,GND,\u51fa\u529b\u3068\u306a\u3063\u3066\u304a\u308a\u203b1<\/sup>\u3001\u5165\u529b\u306b\u96fb\u5727\u3092\u5165\u308c\u308b\u4e8b\u306b\u3088\u308a\u6b32\u3057\u3044\u96fb\u5727\u304c\u51fa\u529b\u90e8\u304b\u3089\u51fa\u529b\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u6642GND(\u30b0\u30e9\u30a6\u30f3\u30c9)\u306f\u5165\u529b\u96fb\u6e90\u3068\u51fa\u529b\u3067\u5171\u901a\u306b\u3057\u3066\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u203b1 : \u3082\u306e\u306b\u3088\u3063\u3066\u306f\u9006\u306b\u306a\u3063\u3066\u3044\u308b\u4e8b\u3082\u3042\u308b\u306e\u3067\u3001\u4f7f\u7528\u3059\u308b\u969b\u306f\u5fc5\u305a\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u4e8b <\/span><\/p>\n\n\n\n
\u5165\u529b\u3068\u51fa\u529b\u306e\u96fb\u4f4d\u5dee\u306f\u57fa\u672c\u7684\u306b3V\u7a0b\u5ea6\u306f\u3042\u3063\u305f\u307b\u3046\u304c\u826f\u3044\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002(\u4f4e\u30c9\u30ed\u30c3\u30d7\u30bf\u30a4\u30d7\u3082\u3042\u308b\u304c\u3001\u4e00\u822c\u7684\u306b\u306f3V\u7a0b\u5ea6\u306e\u96fb\u5727\u964d\u4e0b\u3092\u898b\u8fbc\u3093\u3060\u307b\u3046\u304c\u826f\u3044)<\/p>\n\n\n\n
\u88fd\u54c1\u3068\u3057\u3066\u306f\u6b63\u96fb\u6e90\u306e7800\u30b7\u30ea\u30fc\u30ba\u8ca0\u96fb\u6e90\u306e7900\u30b7\u30ea\u30fc\u30ba\u304c\u3042\u308a\u3001\u7528\u9014\u306b\u5fdc\u3058\u3066\u4f7f\u3044\u5206\u3051\u307e\u3059\u3002<\/p>\n\n\n\n
\u6b21\u9805\u3088\u308a\u5185\u90e8\u56de\u8def\u306b\u95a2\u3057\u3066\u8aac\u660e\u3057\u3001\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3057\u305f\u7d50\u679c\u3092\u8a18\u8f09\u81f4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u5185\u90e8\u56de\u8def<\/h2>\n\n\n\n
\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u306e\u30b7\u30ea\u30fc\u30ba\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3068\u3044\u3063\u305f\u3082\u306e\u306e\u4e00\u7a2e\u306b\u306a\u308a\u3001\u30b7\u30ea\u30fc\u30ba\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u306e\u57fa\u672c\u7684\u306a\u56de\u8def\u30d6\u30ed\u30c3\u30af\u56f3\u306f\u4e0b\u8a18\u306e\u901a\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/block.png\")
\u30b7\u30ea\u30fc\u30ba\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf \u30d6\u30ed\u30c3\u30af\u56f3<\/figcaption><\/figure>\n<\/div>\n\n\n \u4e0a\u8a18\u306e\u30d6\u30ed\u30c3\u30af\u56f3\u3092\u56de\u8def\u56f3\u65b9\u5f0f\u306b\u76f4\u3059\u3068\u4e0b\u8a18\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/series-1-1024x525.png\")
\u30b7\u30ea\u30fc\u30ba\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf \u56de\u8def\u30d6\u30ed\u30c3\u30af\u56f3 <\/figcaption><\/figure>\n<\/div>\n\n\n \u4e0a\u8a18\u30d6\u30ed\u30c3\u30af\u56f3\u3092\u91cd\u306d\u5408\u308f\u305b\u305f\u7d50\u679c\u306f\u4e0b\u8a18\u306e\u901a\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/series2-3.png\")
\u30b7\u30ea\u30fc\u30ba\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf \u56de\u8def\u30d6\u30ed\u30c3\u30af\u56f3 \u91cd\u306d\u5408\u308f\u305b <\/figcaption><\/figure>\n<\/div>\n\n\n \u5404\u9805\u76ee\u306b\u95a2\u3057\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u90e8<\/h3>\n\n\n\n
\u3053\u3061\u3089\u306f\u5165\u529b\u304b\u3089\u5165\u3063\u3066\u304d\u305f\u96fb\u5727\u3092\u5909\u66f4\u3059\u308b\u90e8\u5206\u306b\u306a\u308a\u307e\u3059\u3002\u5f8c\u307b\u3069\u8aac\u660e\u3059\u308b\u8aa4\u5dee\u5897\u5e45\u5668\u304b\u3089\u306e\u51fa\u529b\u5024\u306b\u3088\u3063\u3066\u62b5\u6297\u5024\u304c\u5909\u5316\u3059\u308b\u53ef\u5909\u62b5\u6297\u306e\u3088\u3046\u306a\u5f79\u5272\u3092\u62c5\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u305d\u306e\u70ba\u3001\u5165\u529b\u3068\u51fa\u529b\u306e\u96fb\u5727\u5dee\u3068\u6d41\u308c\u308b\u96fb\u6d41\u306b\u3088\u3063\u3066\u6d88\u8cbb\u96fb\u529b\u304c\u6c7a\u307e\u308a\u3001\u30ed\u30b9\u304c\u751f\u3058\u307e\u3059\u3002<\/p>\n\n\n\n
\u8ffd\u52a0\u3067\u3064\u3051\u3066\u3044\u308b\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u3001\u5165\u529b\u304c\u51fa\u529b\u3088\u308a\u5c0f\u3055\u304f\u306a\u3063\u305f\u5834\u5408\u306b\u96fb\u6d41\u304c\u6d41\u308c\u308b\u7d4c\u8def\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u7b49\u306e\u7d20\u5b50\u306f\u51fa\u529b\u96fb\u5727\u304c\u5165\u529b\u96fb\u5727\u3088\u308a5\uff5e6V\u9ad8\u304f\u306a\u3063\u305f\u5834\u5408\u306b\u7834\u640d\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u3001\u4fdd\u8b77\u7528\u3068\u3057\u3066\u4f7f\u7528\u3057\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u51fa\u529b\u96fb\u5727\u691c\u51fa\u56de\u8def<\/strong><\/h3>\n\n\n\n
\u3053\u3061\u3089\u306f\u62b5\u6297\u5668\u306e\u5206\u5727\u56de\u8def\u3092\u7528\u3044\u305f\u51fa\u529b\u96fb\u5727\u691c\u51fa\u56de\u8def\u306b\u306a\u308a\u307e\u3059\u3002\u51fa\u529b\u3055\u308c\u305f\u96fb\u5727\u3092\u691c\u51fa\u3059\u308b\u6a5f\u80fd\u3092\u6301\u3063\u3066\u304a\u308a\u3001\u56de\u8def\u56f3\u3068\u3057\u3066\u306f\u4e0b\u8a18\u304a\u901a\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/bunatu.png\")
\u62b5\u6297\u5206\u5727\u56de\u8def<\/figcaption><\/figure>\n<\/div>\n\n\n \u5165\u529b\u96fb\u5727Vin\u306f\u62b5\u6297R1,R2\u306b\u3088\u3063\u3066\u5206\u5727\u3055\u308c\u3001\u96fb\u5727Vo\u3068\u3057\u3066\u51fa\u529b\u3055\u308c\u307e\u3059\u3002\u672c\u56de\u8def\u3067\u306fVo=Vin\u306e\u5024\u306b\u6301\u3063\u3066\u3044\u304d\u305f\u3044\u306e\u3067\u3001R2\u306e\u5024\u3092\u7121\u9650\u5927(\u63a5\u7d9a\u7121)\u3067\u8003\u3048\u3066\u63a5\u7d9a\u3057\u307e\u3057\u305f\u3002<\/span><\/p>\n\n\n\n
\u57fa\u6e96\u96fb\u5727\u6e90<\/strong><\/h3>\n\n\n\n
\u3053\u306e\u57fa\u6e96\u96fb\u5727\u6e90\u3068\u306f\u3001\u51fa\u529b\u96fb\u5727\u3092\u6c7a\u3081\u308b\u96fb\u5727\u6e90\u306e\u4e8b\u3092\u6307\u3057\u3066\u304a\u308a\u3001\u3053\u306e\u57fa\u6e96\u96fb\u5727Vref\u3092\u5143\u306bVo=Vref\u306b\u306a\u308b\u3088\u3046\u306b\u8aa4\u5dee\u5897\u5e45\u5668\u304c\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u306f\u305d\u306eIC\u81ea\u4f53\u3067\u3053\u306eVref\u304c\u56fa\u5b9a\u306b\u306a\u3063\u3066\u304a\u308a\u300178XX \u307e\u305f\u306f 79XX\u306eXX\u306e\u90e8\u5206\u306b\u305d\u306e\u96fb\u5727\u304c\u8a18\u8f09\u3055\u308c\u3066\u304a\u308a\u307e\u3059<\/span>\u3002(\u4f8b\u3048\u3070\u4eca\u56de\u4f7f\u7528\u3057\u305f\u306e\u306f7805\u306a\u306e\u30675V\u51fa\u529b)<\/p>\n\n\n\n
\u8aa4\u5dee\u5897\u5e45\u5668<\/strong><\/h3>\n\n\n\n
\u8aa4\u5dee\u5897\u5e45\u5668\u306f\u57fa\u6e96\u96fb\u5727\u6e90\u3068\u51fa\u529b\u96fb\u5727\u691c\u51fa\u304b\u3089\u5f97\u3089\u308c\u305f\u7d50\u679c\u3092\u6bd4\u8f03\u3057\u3066\u305d\u306e\u8aa4\u5dee\u3092\u5897\u5e45\u3055\u305b\u308b\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002\u4e0b\u8a18\u306b\u793a\u3059\u3088\u3046\u306b\u30aa\u30da\u30a2\u30f3\u30d7\u3092\u3064\u304b\u3063\u305f\u4f4d\u76f8\u4fdd\u8a3c\u3092\u542b\u3080\u56de\u8def\u306e\u3088\u3046\u306b\u306a\u3063\u3066\u304a\u308a\u3001\u3053\u306e\u56de\u8def\u3092\u7528\u3044\u3066\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u90e8\u306b\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u51fa\u529b<\/span>\u3092\u3057\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/err.png\")
\u8aa4\u5dee\u56f3\u670d\u5668 \u56de\u8def\u56f3<\/figcaption><\/figure>\n<\/div>\n\n\n \u8aa4\u5dee\u5897\u5e45\u5668\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u3001\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u306f\u51fa\u529b\u96fb\u6d41\u304c\u5909\u52d5\u3057\u3066\u3082\u3001\u51fa\u529b\u96fb\u5727\u306fVref\u3092\u7dad\u6301\u3059\u308b\u3088\u3046\u306b\u52d5\u4f5c\u81f4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u52d5\u4f5c\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<\/h2>\n\n\n\n
\u4e0a\u8a18\u306e\u56de\u8def\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u306b\u306fLinear Technology\u793e\u306eLTspice\u3092\u4f7f\u7528\u3055\u305b\u3066\u9802\u304d\u307e\u3057\u305f\u3002\u30d5\u30ea\u30fc\u306e\u30bd\u30d5\u30c8\u306b\u306a\u308a\u307e\u3059\u306e\u3067\u30ea\u30f3\u30af\u8a18\u8f09\u81f4\u3057\u307e\u3059\u3002(\u30ea\u30f3\u30af<\/a>)<\/p>\n\n\n\n
\u305d\u306e\u969b\u306e\u56de\u8def\u56f3\u304c\u4e0b\u8a18\u306e\u901a\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/simrate-1-1024x490.png\")
\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u56de\u8def<\/figcaption><\/figure>\n<\/div>\n\n\n \u52d5\u4f5c\u3068\u3057\u3066\u306f\u300112V\u306e\u5165\u529b\u306b\u5bfe\u3057\u3066\u3001Vo\u304cV1\u306e\u96fb\u5727\u306b\u306a\u308b\u3088\u3046\u306b\u8ffd\u5f93\u3057\u305f\u56de\u8def\u306b\u306a\u308a\u307e\u3059\u3002\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3068\u3057\u3066\u306f\u3001PNP\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf(LTspice\u306e\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u54c1\u3092\u4f7f\u7528)\u3092\u7528\u3044\u3066OP07\u3092\u4f7f\u3063\u3066\u5236\u5fa1\u81f4\u3057\u307e\u3059\u3002\u51fa\u529b\u6ce2\u5f62\u306e\u7d50\u679c\u306f\u4e0b\u8a18\u306e\u901a\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u6ce2\u5f62\u306e\u52d5\u4f5c\u304c\u5206\u304b\u308a\u3084\u3059\u3044\u3088\u3046\u306b100ms\u9593\u9694(m\u306f1\/1000)\u3067\u30b9\u30c6\u30c3\u30d7\u4e0a\u306b\u52d5\u4f5c\u3055\u305b\u307e\u3057\u305f\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2021\/10\/output-1.png\")
\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u7d50\u679c<\/figcaption><\/figure>\n<\/div>\n\n\n \u51fa\u529b\u96fb\u5727Vo\u306f\u57fa\u672c\u7684\u306bVref(V1)\u306b\u8ffd\u5f93\u3057\u3066\u52d5\u3044\u3066\u304a\u308a\u307e\u3059\u3002\u305f\u3060\u3001\u5c11\u3057\u96fb\u5727\u304c\u8df3\u306d\u3066\u3044\u308b\u3088\u3046\u306a\u90e8\u5206(\u30aa\u30fc\u30d0\u30fc\u30b7\u30e5\u30fc\u30c8)\u304c\u3042\u308a\u3001\u8aa4\u5dee\u5897\u5e45\u5236\u5fa1\u5668\u306b\u3088\u308b\u5236\u5fa1\u52d5\u4f5c\u304c\u3055\u308c\u3066\u3044\u308b\u4e8b\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u4e0b\u8a18\u306b\u4f5c\u6210\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u7f6e\u3044\u3066\u304a\u304f\u306e\u3067\u3001\u6c17\u306b\u306a\u3063\u305f\u304b\u305f\u306f\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u9802\u3051\u305f\u3089\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n
[wpdm_package id=’550′]<\/p>\n\n\n
[wpdm_package id=’552′]<\/p>\n\n\n\n
\u7c21\u6613\u71b1\u8a08\u7b97<\/h2>\n\n\n\n
\u203b2023\/6\/5\u66f4\u65b0<\/p>\n\n\n\n
\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u71b1\u8a08\u7b97\u3092\u7c21\u6613\u7684\u306b\u884c\u3063\u3066\u307f\u307e\u3059\u3002\u4e0b\u8a18\u306b\u71b1\u56de\u8def\u306e\u7c21\u6613\u30a4\u30e1\u30fc\u30b8\u56f3\u3092\u8a18\u8f09\u81f4\u3057\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2023\/06\/heat_circuit-1-1024x430.png\")
\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf \u7c21\u6613\u71b1\u56de\u8def<\/figcaption><\/figure>\n<\/div>\n\n\n Tj\u3092\u63a5\u5408\u90e8\u306e\u6e29\u5ea6\u3001\u30b8\u30e3\u30f3\u30af\u30b7\u30e7\u30f3\u6e29\u5ea6\u3068\u3057\u3066\u57fa\u6e96\u306b\u7f6e\u304d\u3001\u03b8jc\u306f\u63a5\u5408\u90e8\u3068\u30b1\u30fc\u30b9\u9593\u306e\u71b1\u62b5\u6297\u3001\u03b8c\u3092\u30b1\u30fc\u30b9\u306e\u71b1\u62b5\u6297\u3001\u03b8ch\u3092\u30b1\u30fc\u30b9-\u30d2\u30fc\u30c8\u30b7\u30f3\u30af\u9593\u306e\u71b1\u62b5\u6297(\u30b0\u30ea\u30fc\u30b9\u3092\u4f7f\u7528)\u3001\u03b8ha\u3092\u30d2\u30fc\u30c8\u30b7\u30f3\u30af-\u5468\u56f2\u306e\u5927\u6c17\u307e\u3067\u306e\u71b1\u62b5\u6297\u3001TA\u3092\u5468\u56f2\u306e\u96f0\u56f2\u6c17\u6e29\u5ea6\u3068\u3057\u3066\u8a08\u7b97\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n
\u8a08\u7b97\u306e\u6e96\u5099\u3068\u3057\u3066\u30d2\u30fc\u30c8\u30b7\u30f3\u30af\u3001\u71b1\u4f1d\u5c0e\u30b0\u30ea\u30b9\u3001\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3092\u7528\u610f\u81f4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u4eca\u56de\u306f\u4eee\u8a08\u7b97\u3068\u3057\u3066\u4e0b\u8a18\u306e3\u3064\u3092\u4f7f\u7528\u3059\u308b\u3088\u3046\u306b\u81f4\u3057\u307e\u3057\u305f\u3002\u5168\u3066\u79cb\u6708\u96fb\u5b50\u901a\u5546\u3067\u8cfc\u5165\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n
- \n
- 17PB046<\/a>(\u30d2\u30fc\u30c8\u30b7\u30f3\u30af)<\/li>\n\n\n\n
- HY-750<\/a>(\u71b1\u4f1d\u5c0e\u30b0\u30ea\u30b9)<\/li>\n\n\n\n
- NJM317F<\/a>(\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf)<\/li>\n<\/ul>\n\n\n\n
NJM317F\u306e\u30b8\u30e3\u30f3\u30af\u30b7\u30e7\u30f3\u6e29\u5ea6(Tj)\u3092\u8003\u3048\u307e\u3059\u3002<\/p>\n\n\n\n
\u3053\u3053\u3067NJM317F\u306e\u30c7\u30fc\u30bf\u3088\u308a\u3001\u03b8jc = 5\u2103\/W\u306b\u306a\u308a\u307e\u3059\u3002\u03b8c\u306f\u8a18\u8f09\u3055\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3067\u3072\u3068\u307e\u305a\u4fdd\u7559\u3057\u3001\u03b8ch\u306f\u71b1\u4f1d\u5c0e\u30b0\u30ea\u30b9\u306e\u7279\u6027\u3088\u308a\u30018.98 x 10^-5\u2103\/W, \u03b8ha = 11.9\u2103\/W\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u03b8c\u306b\u95a2\u3057\u3066\u306f\u3001NJM317F\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8NJM317DL1A\u6d88\u8cbb\u96fb\u529b\u7279\u6027\u4f8b\u306e\u30b0\u30e9\u30d5\u3088\u308a\u300110\u2103\/W\u306e\u7dda\u3088\u308a\u3001\u5468\u56f2\u6e29\u5ea6\u3001\u30b8\u30e3\u30f3\u30af\u30b7\u30e7\u30f3\u71b1\u62b5\u6297\u3001\u30d2\u30fc\u30c8\u30b7\u30f3\u30af\u71b1\u62b5\u6297\u3001Tj=150\u2103\u3068\u3044\u3046\u5024\u3092\u4f7f\u7528\u3057\u3066\u7d047.5\u2103\/W\u3068\u3044\u3046\u8a08\u7b97\u7d50\u679c\u304c\u51fa\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\u3053\u308c\u3089\u306e\u60c5\u5831\u3092\u5143\u306b\u6d88\u8cbb\u96fb\u529bP\u3092\u52a0\u3048\u305f\u6642\u306eTj\u3092\u8003\u3048\u308b\u3068\u3001<\/p>\n\n\n\n
Tj = (\u03b8jc+\u03b8c+\u03b8ch+\u03b8ha) x P + TA<\/p>\n\n\n\n
\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u3053\u3053\u3067TA = 25\u2103\u3001Tj\u306e\u6700\u5927\u3092150\u2103(\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u53c2\u7167)\u3068\u3059\u308b\u3068\u3001\u4f7f\u7528\u3067\u304d\u308b\u96fb\u529bP\u306f<\/p>\n\n\n\n
P = \u7d045.7W<\/p>\n\n\n\n
\u306b\u306a\u308b\u3002\u3053\u3061\u3089\u306f\u6700\u5927\u51fa\u529b\u306a\u306e\u3067\u666e\u901a\u306f\u4f7f\u308f\u306a\u3044\u3002\u3053\u3053\u3067Tj = 110\u2103\u3068\u4eee\u5b9a\u3059\u308b\u3068<\/p>\n\n\n\n
P = \u7d043.9W<\/p>\n\n\n\n
\u306b\u306a\u308b\u3002\u3053\u3061\u3089\u304c\u5b9f\u969b\u306b\u4f7f\u7528\u3059\u308b\u6642\u306e\u5b9f\u7528\u7684\u306a\u6570\u5024\u3068\u8003\u3048\u3089\u308c\u308b\u3002<\/p>\n\n\n\n
\u3053\u306eNJM317F\u306e\u96fb\u5727\u30c9\u30ed\u30c3\u30d7\u7387\u306f\u901a\u5e383V\u304f\u3089\u3044\u306a\u306e\u3067\u3001\u5927\u4f531.3A\u7a0b\u5ea6\u307e\u3067\u306f\u51fa\u529b\u51fa\u6765\u305d\u3046\u3067\u3059\u3002(\u56fa\u5b9a\u96fb\u5727\u3067\u8003\u3048\u305f\u5834\u5408)<\/p>\n\n\n\n
\u53ef\u5909\u96fb\u5727\u6e90\u3068\u3057\u3066\u8003\u3048\u305f\u5834\u5408\u306f\u3001\u5165\u529b\u96fb\u5727\u306b\u5bfe\u3057\u3066\u306e\u51fa\u529b\u96fb\u5727\u306e\u5dee\u304c\u5927\u304d\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u305d\u3053\u3092\u8003\u616e\u3057\u3066\u8a2d\u8a08\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n
\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3092\u4f7f\u3063\u305f\u56de\u8def\u4f8b<\/h2>\n\n\n\n
\u203b2023\/6\/8\u66f4\u65b0<\/p>\n\n\n\n
\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u306f\u5165\u529b\u96fb\u5727\u3092\u5236\u5fa1\u3057\u3066\u4e00\u5b9a\u306e\u96fb\u5727\u3092\u51fa\u529b\u3059\u308bIC\u306b\u306a\u308a\u307e\u3059\u3002\u7c21\u6613\u71b1\u8a08\u7b97\u306e\u7ae0\u3067\u4f7f\u7528\u3057\u305fNJM317F\u306f\u53ef\u5909\u4e09\u7aef\u5b50\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u3068\u3044\u3063\u305f\u3082\u306e\u3067\u3001\u53ef\u5909\u62b5\u6297\u3092\u4f7f\u7528\u3059\u308b\u4e8b\u3067\u51fa\u529b\u96fb\u5727\u3092\u53ef\u5909\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n
\u53ef\u5909\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u306e\u30d6\u30ed\u30c3\u30af\u56f3\u3092\u4e0b\u8a18\u306b\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2023\/06\/kahen-regulater.png\")
\u53ef\u5909\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf \u30d6\u30ed\u30c3\u30af\u56f3<\/figcaption><\/figure>\n<\/div>\n\n\n \u3053\u3061\u3089\u304bNJM317\u306e\u4f7f\u7528\u4f8b\u306e\u4e00\u3064\u3067\u3059\u3002\u3053\u3061\u3089\u3067\u306fRv\u3092\u53ef\u5909\u3055\u305b\u308b\u3053\u3068\u3067\u51fa\u529bout\u306e\u96fb\u5727\u3092\u5909\u66f4\u3059\u308b\u4e8b\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n
\u51fa\u529bout\u306e\u5f0f\u306f\u4e0b\u8a18\u306e\u901a\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
$$out = V_{REF}\u00d7\\left( 1+ \\frac {R_{v}}{R_{1}} \\right) + R_{v}\u00d7 I_{ADJ}$$<\/p>\n\n\n\n
\u5f0f\u304b\u3089\u308f\u304b\u308b\u901a\u308aRv\u306b\u4f9d\u5b58\u3057\u3066\u51fa\u529b\u96fb\u5727\u306eout\u304c\u51fa\u529b\u3055\u308c\u308b\u3002\u3053\u3053\u3067\u96fb\u529b\u306b\u95a2\u3057\u3066\u8003\u3048\u3066\u307f\u308b\u3002NJM317\u306f\u51fa\u529b\u53ef\u5909\u96fb\u5727\u7bc4\u56f2\u304c1.25V\uff5e37V\u3068\u306a\u3063\u3066\u304a\u308a\u3001\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u306b\u3088\u308b\u30c9\u30ed\u30c3\u30d7\u306f\u6700\u5c0f3V\u306f\u5fc5\u8981\u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n\n\n\n
\u3053\u3053\u3067\u5165\u529b\u96fb\u5727\u309240V\u3068\u3057\u3001\u524d\u306e\u7ae0\u3067\u6c42\u3081\u305f\u6700\u5927\u6d88\u8cbb\u96fb\u529b\u30923.9W\u3068\u3057\u3066\u73fe\u5b9f\u7684\u306a\u51fa\u529b\u53ef\u80fd\u306a\u96fb\u6d41\u7bc4\u56f2\u3092\u8abf\u3079\u3066\u307f\u308b\u3068\u3001\u4e0b\u8a18\u306e\u901a\u308a\u306e\u30b0\u30e9\u30d5\u306b\u306a\u308b\u3002<\/p>\n\n\n
\n![\"\"](\"https:\/\/www.framblog.tech\/framblog\/wp-content\/uploads\/2023\/06\/graph01.png\")
\u53ef\u5909\u96fb\u6d41\u7bc4\u56f2<\/figcaption><\/figure>\n<\/div>\n\n\n \u4e0a\u8a18\u306e\u30b0\u30e9\u30d5\u3088\u308a\u3001\u5927\u4f53100mA\u7a0b\u5ea6\u307e\u3067\u3060\u3063\u305f\u3089\u4f4e\u96fb\u5727\u5074\u3067\u3082\u4f7f\u7528\u53ef\u80fd\u3068\u306e\u4e8b\u304c\u5206\u304b\u3063\u305f\u3002(\u4f4e\u96fb\u5727\u51fa\u529b\u306e\u307b\u3046\u304c\u96fb\u5727\u30c9\u30ed\u30c3\u30d7\u304c\u5927\u304d\u3044\u306e\u3067\u6d88\u8cbb\u96fb\u529b\u304c\u5927\u304d\u304f\u306a\u308b\u3002)\u3053\u308c\u306b\u3088\u308a\u30011.25V\uff5e37V\u306e\u7bc4\u56f2\u3067\u6700\u5927100mA\u7a0b\u5ea6\u306a\u3089\u51fa\u529b\u306f\u554f\u984c\u306a\u3044\u3053\u3068\u304c\u5206\u304b\u3063\u305f\u3002\u3053\u3061\u3089\u3092\u4f7f\u3063\u3066\u96fb\u5b50\u5de5\u4f5c\u306b\u4f7f\u7528\u3067\u304d\u305d\u3046\u306a\u7c21\u6613\u7684\u306a\u5b9a\u96fb\u5727\u96fb\u6e90\u304c\u8a2d\u8a08\u51fa\u6765\u305f\u3068\u601d\u308f\u308c\u308b\u3002<\/p>\n\n\n\n
\u307e\u3068\u3081<\/h2>\n\n\n\n
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- HY-750<\/a>(\u71b1\u4f1d\u5c0e\u30b0\u30ea\u30b9)<\/li>\n\n\n\n
- 17PB046<\/a>(\u30d2\u30fc\u30c8\u30b7\u30f3\u30af)<\/li>\n\n\n\n