{"id":10913,"date":"2026-01-14T15:31:49","date_gmt":"2026-01-14T07:31:49","guid":{"rendered":"https:\/\/www.goodworksemi.com\/?p=10913"},"modified":"2026-02-28T11:41:47","modified_gmt":"2026-02-28T03:41:47","slug":"how-to-choose-a-powerhouse-heart-for-power-tools-select-the-right-goodwork-mosfet","status":"publish","type":"post","link":"https:\/\/www.goodworksemi.com\/ja\/how-to-choose-a-powerhouse-heart-for-power-tools-select-the-right-goodwork-mosfet\/","title":{"rendered":"\u96fb\u52d5\u5de5\u5177\u306e \u201c\u5fc3\u81d3\u90e8\u201d\u3001\u3069\u3046\u9078\u3076\uff1f\u6b63\u3057\u3044\u30b0\u30c3\u30c9\u30ef\u30fc\u30afMOSFET\u3092\u9078\u3076\uff01"},"content":{"rendered":"<p>\u96fb\u52d5\u5de5\u5177\u5e02\u5834\u304c\u9032\u5316\u3092\u7d9a\u3051\u308b\u4e2d\u3001\u6d88\u8cbb\u8005\u306f\u30d0\u30c3\u30c6\u30ea\u30fc\u306e\u5bff\u547d\u3001\u6027\u80fd\u3001\u4fe1\u983c\u6027\u306e\u5411\u4e0a\u3092\u6c42\u3081\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3059\u3079\u3066\u3001\u96fb\u52d5\u5de5\u5177\u306e\u300c\u5fc3\u81d3\u90e8\u300d\u3068\u3082\u3044\u3048\u308b\u96fb\u5b50\u90e8\u54c1\u3001MOSFET\u306b\u304b\u304b\u3063\u3066\u3044\u307e\u3059\u3002\u9069\u5207\u306aMOSFET\u306f\u3001\u30d1\u30ef\u30fc\u3068\u7a3c\u50cd\u6642\u9593\u3092\u9ad8\u3081\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u5de5\u5177\u306e\u5bff\u547d\u3092\u5ef6\u3070\u3057\u3001\u6545\u969c\u7387\u3092\u4f4e\u6e1b\u3057\u307e\u3059\u3002.<\/p>\n<p>\u672c\u65e5\u306f\u3001\u96fb\u52d5\u5de5\u5177\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u7528\u306eGoodwork MOSFET\u3092\u9078\u629e\u3059\u308b\u305f\u3081\u306e\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\uff01<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-10914\" src=\"https:\/\/www.goodworksemi.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_501238052_\u7535\u52a8\u5de5\u5177\u5957\u88c5\u975e\u4f01\u4e1a\u5546\u7528-300x200.jpg\" alt=\"\" width=\"600\" height=\"400\" srcset=\"\" data-srcset=\"https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_501238052_\u7535\u52a8\u5de5\u5177\u5957\u88c5\u975e\u4f01\u4e1a\u5546\u7528-300x200.jpg 300w, https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_501238052_\u7535\u52a8\u5de5\u5177\u5957\u88c5\u975e\u4f01\u4e1a\u5546\u7528-768x512.jpg 768w, https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_501238052_\u7535\u52a8\u5de5\u5177\u5957\u88c5\u975e\u4f01\u4e1a\u5546\u7528-18x12.jpg 18w, https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_501238052_\u7535\u52a8\u5de5\u5177\u5957\u88c5\u975e\u4f01\u4e1a\u5546\u7528.jpg 800w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>1.\u96fb\u52d5\u5de5\u5177\u306b\u304a\u3051\u308bMOSFET\u306e\u5f79\u5272\u3068\u306f\uff1f<\/b><\/strong><\/p>\n<p>1.1.\u30e2\u30fc\u30bf\u30fc\u30c9\u30e9\u30a4\u30d6\u30b7\u30b9\u30c6\u30e0\uff08\u30b3\u30a2\u6a5f\u80fd\uff09<\/p>\n<p>\u30d6\u30e9\u30b7\u4ed8\u304dDC\u30e2\u30fc\u30bf\u30fc\uff1aH\u30d6\u30ea\u30c3\u30b8\u56de\u8def\u3092\u63a1\u7528\u3057\u3001\u6b63\u8ee2\/\u9006\u8ee2\u52d5\u4f5c\u3068\u6b63\u78ba\u306aPWM\u901f\u5ea6\u5236\u5fa1\u3092\u5b9f\u73fe\u3002.<\/p>\n<p>\u30d6\u30e9\u30b7\u30ec\u30b9DC\u30e2\u30fc\u30bf\u30fc\uff1a\u4e09\u76f86\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u30fb\u30d6\u30ea\u30c3\u30b8\u56de\u8def\u5236\u5fa1\u306e\u4e2d\u6838\u3067\u3042\u308a\u3001\u5de5\u5177\u306e\u30d1\u30ef\u30fc\u5fdc\u7b54\u901f\u5ea6\u3068\u52d5\u4f5c\u306e\u6ed1\u3089\u304b\u3055\u3092\u6c7a\u5b9a\u3059\u308b\u3002.<\/p>\n<p>\u30b3\u30a2\u306e\u8981\u4ef6\u4f4e\u30aa\u30f3\u62b5\u6297\uff08Rds(on)\uff09\u3001\u9ad8\u901f\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u3001\u5f37\u529b\u306a\u30b5\u30fc\u30b8\u8010\u6027\u3002.<\/p>\n<p>1.2.\u30d0\u30c3\u30c6\u30ea\u30fc\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\uff08BMS\u3001\u30bb\u30fc\u30d5\u30c6\u30a3\u30fb\u30ac\u30fc\u30c7\u30a3\u30a2\u30f3\uff09<\/p>\n<p>\u904e\u96fb\u5727\/\u4f4e\u96fb\u5727\u4fdd\u8b77\uff08\u904e\u5145\u96fb\/\u904e\u653e\u96fb\u306e\u9632\u6b62\uff09\u3068\u904e\u96fb\u6d41\/\u77ed\u7d61\u4fdd\u8b77\uff08\u6545\u969c\u6642\u306e\u8fc5\u901f\u306a\u56de\u8def\u906e\u65ad\uff09\u306f\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u306e\u5b89\u5168\u6027\u3092\u5b88\u308b\u7b2c\u4e00\u7dda\u3092\u5f62\u6210\u3057\u307e\u3059\u3002.<\/p>\n<p>\u30b3\u30a2\u8981\u4ef6\u4f4e\u3044\u9759\u7684\u6d88\u8cbb\u96fb\u529b\u3001\u9ad8\u3044\u4fe1\u983c\u6027\u3001\u512a\u308c\u305f\u4e00\u8cab\u6027\u3002.<\/p>\n<p>1.3.\u5145\u96fb\u56de\u8def\uff08\u30e9\u30f3\u30bf\u30a4\u30e0\u4fdd\u8a3c\uff09<\/p>\n<p>\u30cf\u30f3\u30c9\u30d8\u30eb\u30c9\u306e\u4f4e\u6d88\u8cbb\u96fb\u529b\u30c4\u30fc\u30eb\uff1a\u9ad8\u96fb\u5727VDMOS\u3067\u5341\u5206\u3002.<\/p>\n<p>\u30cf\u30a4\u30d1\u30ef\u30fc\u30c4\u30fc\u30eb\uff1a\u30b9\u30fc\u30d1\u30fc\u30b8\u30e3\u30f3\u30af\u30b7\u30e7\u30f3(SJ)MOSFET\u306f\u640d\u5931\u3092\u5927\u5e45\u306b\u524a\u6e1b\u3057\u3001\u5145\u96fb\u52b9\u7387\u3092\u9ad8\u3081\u307e\u3059\u3002.<\/p>\n<p>Goodwork\u88fd\u54c1\u306e\u63a8\u5968\uff1aGoodwork\u306eVDMOS\u304a\u3088\u3073Cool MOS\u30b7\u30ea\u30fc\u30baMOSFET\u306f\u3001\u5145\u96fb\u56de\u8def\u306e\u4f1d\u5c0e\u640d\u5931\u3092\u5927\u5e45\u306b\u4f4e\u6e1b\u3057\u3001\u52b9\u7387\u3092\u9ad8\u3081\u3001\u96fb\u52d5\u5de5\u5177\u306e\u30d0\u30c3\u30c6\u30ea\u30fc\u5bff\u547d\u3092\u5ef6\u3070\u3057\u307e\u3059\u3002.<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-10915\" src=\"https:\/\/www.goodworksemi.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_602142324_\u5de5\u5177\u7535\u94bb\u7684\u5236\u9020\u975e\u4f01\u4e1a\u5546\u7528-300x198.jpg\" alt=\"\" width=\"600\" height=\"397\" srcset=\"\" data-srcset=\"https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_602142324_\u5de5\u5177\u7535\u94bb\u7684\u5236\u9020\u975e\u4f01\u4e1a\u5546\u7528-300x198.jpg 300w, https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_602142324_\u5de5\u5177\u7535\u94bb\u7684\u5236\u9020\u975e\u4f01\u4e1a\u5546\u7528-768x508.jpg 768w, https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_602142324_\u5de5\u5177\u7535\u94bb\u7684\u5236\u9020\u975e\u4f01\u4e1a\u5546\u7528-18x12.jpg 18w, https:\/\/www.goodworksemi.com\/wp-content\/uploads\/2026\/01\/\u6444\u56fe\u7f51_602142324_\u5de5\u5177\u7535\u94bb\u7684\u5236\u9020\u975e\u4f01\u4e1a\u5546\u7528.jpg 800w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>2 \u6b63\u78ba\u306a\u30de\u30c3\u30c1\u30f3\u30b0\u3068\u843d\u3068\u3057\u7a74\u56de\u907f\u306e\u305f\u3081\u306e4\u6bb5\u968e\u306e\u9078\u629e\u30d7\u30ed\u30bb\u30b9<\/b><\/strong><\/p>\n<p>MOSFET\u306e\u9078\u5b9a\u306f\u52d8\u3067\u884c\u3046\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e4\u3064\u306e\u30b3\u30a2\u30fb\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3066\u3001\u9078\u629e\u306e\u8ab2\u984c\u3092\u96e3\u306a\u304f\u89e3\u6c7a\u3057\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<p>2.1.\u96fb\u5727\u30d1\u30e9\u30e1\u30fc\u30bf\u5b89\u5168\u7b2c\u4e00\u3001\u5341\u5206\u306a\u30de\u30fc\u30b8\u30f3\u306e\u78ba\u4fdd<\/p>\n<p>l \u9078\u5b9a\u539f\u7406\uff1a\u30d6\u30ec\u30fc\u30af\u30c0\u30a6\u30f3\u96fb\u5727\uff08Vds\uff09\u2267\u52d5\u4f5c\u96fb\u5727\u306e1.5\uff5e2\u500d\u3002.<\/p>\n<p>l \u4f8b\uff1a12V\u30d0\u30c3\u30c6\u30ea\u30fc\u30b7\u30b9\u30c6\u30e0\u2192\u5b9a\u683c30V\u4ee5\u4e0a\u306e\u30e2\u30c7\u30eb\u3092\u9078\u629e\u3002.<\/p>\n<p>l\u30ad\u30fc\u30ed\u30b8\u30c3\u30af\uff1a\u30e2\u30fc\u30bf\u30fc\u306e\u59cb\u52d5\/\u505c\u6b62\u30b5\u30a4\u30af\u30eb\u4e2d\u306e\u9006\u8d77\u96fb\u529b\u304a\u3088\u3073\u30b5\u30fc\u30b8\u96fb\u5727\u306b\u8010\u3048\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u7834\u58ca\u3092\u9632\u6b62\u3002.<\/p>\n<p>2.2.\u96fb\u6d41\u30d1\u30e9\u30e1\u30fc\u30bf\uff1a\u6027\u80fd\u306e\u57fa\u790e\u3001\u30d4\u30fc\u30af\u96fb\u6d41\u306e\u8003\u616e<\/p>\n<p>l \u5b9a\u683c\u96fb\u6d41 (ID): \u30e2\u30fc\u30bf\u5b9a\u683c\u96fb\u6d41\u306e 5\uff5e10 \u500d\u4ee5\u4e0a\u3002.<\/p>\n<p>l \u30d4\u30fc\u30af\u96fb\u6d41 (IDM): \u30e2\u30fc\u30bf\u5b9a\u683c\u96fb\u6d41\u306e 3 \u500d\u4ee5\u4e0a (\u77ac\u6642\u8d77\u52d5\u30b5\u30fc\u30b8\u306b\u5bfe\u5fdc)\u3002.<\/p>\n<p>l\u8a08\u7b97\u4f8b\uff1a12V\/500W\u30c9\u30ea\u30eb \u2192 I = 500W\/12V\u2248 42A \u2192 \u2265100A\u306e\u5b9a\u683c\u96fb\u6d41\u3092\u9078\u629e\u3002.<\/p>\n<p>2.3.\u30aa\u30f3\u62b5\u6297\uff08Rds (on)\uff09\uff1a\u52b9\u7387\u306e\u9375\u3001\u4f4e\u3044\u307b\u3069\u826f\u3044<\/p>\n<p>l \u9078\u629e\u306e\u539f\u5247\uff1a10m\u03a9\u4ee5\u4e0b\u306e\u30e2\u30c7\u30eb\u3092\u512a\u5148\u3057\u3001\u30cf\u30a4\u30d1\u30ef\u30fc\u5de5\u5177\u306b\u306f5m\u03a9\u4ee5\u4e0b\u3092\u63a8\u5968\u3059\u308b\u3002.<\/p>\n<p>l \u6bd4\u8f03\u306e\u6d1e\u5bdf\uff1a4.5m\u03a9\u306eMOSFET\u306810m\u03a9\u306eMOSFET\u3067\u306f\u3001\u540c\u3058\u96fb\u6d41\u306755%\u306e\u96fb\u529b\u640d\u5931\u304c\u6e1b\u5c11\u3059\u308b\u3002.<\/p>\n<p>2.4.\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u9078\u629e\uff1a\u30b9\u30da\u30fc\u30b9\u3068\u71b1\u306e\u8003\u616e<\/p>\n<p>Goodwork\u306e\u63a8\u5968\u4e8b\u9805Goodwork\u306f\u3001\u5c0f\u578b\u30c4\u30fc\u30eb\u7528\u306eTO-252\u3001\u4e2d\u30fb\u5927\u578b\u30c4\u30fc\u30eb\u7528\u306eSOP8\u3001TO-220\u3001TO-247\u3092\u542b\u3080\u591a\u69d8\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u3001\u96fb\u529b\u30ec\u30d9\u30eb\u5168\u4f53\u306b\u308f\u305f\u308b\u71b1\u7ba1\u7406\u3068\u4fe1\u983c\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3002.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>3<\/b><\/strong><strong><b>. 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