{"id":1405,"date":"2015-10-17T19:38:04","date_gmt":"2015-10-17T10:38:04","guid":{"rendered":"https:\/\/hack.gpl.jp\/?p=1405"},"modified":"2015-10-17T19:38:04","modified_gmt":"2015-10-17T10:38:04","slug":"post-1405","status":"publish","type":"post","link":"https:\/\/hack.gpl.jp\/2015\/10\/17\/post-1405.html","title":{"rendered":"PGND \u3068 GND \u306e\u51e6\u7406"},"content":{"rendered":"
\u3053\u308c\u304c\u308f\u304b\u3089\u306a\u304f\u30661\u65e5\u6d88\u8cbb\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u4f55\u304c\u3001\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u304b\u3068\u3044\u3044\u307e\u3059\u3068\u3001PGND \u3068 GND \u3092\u3064\u306a\u3050\u65b9\u6cd5\u3067\u3059\u3002\uff12\u3064\u306e\u30b0\u30e9\u30f3\u30c9\u304c\u96fb\u6e90\u5468\u308a\u306b\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u30aa\u30d5\u30a3\u30b7\u30e3\u30eb\u306e\u56de\u8def\u3092\u898b\u308b\u3068\u3053\u306e\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
<\/p>\n
GND \u304c\uff12\u3064\u3042\u3063\u3066\u3001PGND \u306f\u30d1\u30ef\u30fc\uff65\u30b9\u30a4\u30c3\u30c1\u56de\u8def\u7528\u30b0\u30e9\u30f3\u30c9\u3067\u3001GND\u306f\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\/\u30ed\u30b8\u30c3\u30af\u56de\u8def\u7528\u30b0\u30e9\u30f3\u30c9\u306e\u3088\u3046\u3067\u3059\u3002PGND \u306f\u3001\u71b1\u51e6\u7406\u3059\u308b\u305f\u3081\u306bPowerPAD \uff08\u90e8\u54c1\u4e2d\u592e\u306b\u4f4d\u7f6e\u3059\u308b\uff09\u306b\u63a5\u7d9a\u3057\u3001PCB \u306e\u9285\u7b94\u9762\u306e\u9762\u7a4d\u3092\u7a3c\u3044\u3067\u7a7a\u51b7\u3055\u305b\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n
<\/p>\n
<\/p>\n
\u3057\u304b\u3057\u3001Eagle \u306f\u3001\u8907\u6570\u306e\u5c5e\u6027\u3092\u6301\u3064\u540d\u524d\u540c\u58eb\u3092\uff08\u7528\u8a9e\u3067\u306f\u3001Name \u3068\u304b\u3001\u30af\u30e9\u30b9\uff08Net Class\uff09\u3068\u8a00\u3046\u305d\u3046\u3067\u3059\uff09\u63a5\u7d9a\u3067\u304d\u305a\u3001\u3069\u308c\u304b\uff11\u3064\u306e\u5c5e\u6027\u306b\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u5834\u5408\u306f\u3001GND \u3068 PGND \u304c\u5225\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3001\u610f\u56f3\u3057\u305f\u3088\u3046\u306b\u914d\u7dda\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<\/p>\n
<\/p>\n
\u4f55\u304b\u3084\u308a\u65b9\u304c\u3042\u308b\u306e\u3060\u308d\u3046\u3068\u3001\u3044\u308d\u3044\u308d\u8abf\u3079\u307e\u3057\u305f\u304c\u7d50\u5c40\u308f\u304b\u3089\u305a\u3001\u624b\u6cd5\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u89e3\u6c7a\u7b56\u3067\u5b9f\u73fe\u3057\u307e\u3057\u305f\u3002<\/p>\n
<\/p>\n
\uff12\u3064\u306e\u30b0\u30e9\u30f3\u30c9\u3092\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u30d1\u30fc\u30c4\u3092\u56de\u8def\u56f3\u306b\u5165\u308c\u3066\u3001\u305d\u3053\u306bPGND \u3068 GND \u3092\u304f\u3063\u3064\u3051\u307e\u3057\u305f\u3002\u30b8\u30e7\u30a4\u30f3\u30c8\u306e\u3088\u3046\u306a\u8003\u3048\u65b9\u3067\u3059\u304c\u3001\u56de\u8def\u56f3\u4e2d\u306bGND \u3063\u307d\u3044\u56f3\u304c\u51fa\u308b\u306e\u3067\u3001\u3053\u308c\u3092\u4f7f\u3044\u307e\u3057\u305f\u3002<\/p>\n
<\/p>\n
\u3053\u3046\u3059\u308c\u3070\u30012\u7b87\u6240\u306e\u9055\u3046Net Class \u3092\uff11\u3064\u306e\u30d1\u30fc\u30c4\u306b\u63a5\u7d9a\u3067\u304d\u308b\u306e\u3067\u76ee\u7684\u304c\u679c\u305f\u305b\u307e\u3057\u305f\u3002<\/p>\n
PCB \u4e0a\u3067\u306f\u30b8\u30e7\u30a4\u30f3\u30c8\u3092\u88cf\u5074\u306b\u56de\u3057\u3001\u3079\u305f\u30a2\u30fc\u30b9\u3068\u30b9\u30eb\u30fc\u30db\u30fc\u30eb\u3092\u3064\u3051\u3066\u71b1\u3092\u9003\u304c\u3057\u307e\u3059\u3002<\/p>\n
<\/p>\n
PGND\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
<\/p>\n
\u3079\u305f\u30a2\u30fc\u30b9\u306f\u30b0\u30b0\u308c\u3070\u3059\u3050\u306b\u51fa\u3066\u304f\u308b\u306e\u3067\u7701\u7565\u3067\u3059\u3002<\/p>\n
<\/p>\n
\u3068\u306b\u304b\u304f\u3001\u3053\u308c\u3067\u76ee\u7684\u306f\u679c\u305f\u305b\u307e\u3057\u305f\u304c\u3001\u3053\u308c\u304c\u6b63\u5f53\u306a\u3084\u308a\u65b9\u306a\u306e\u304b\u306f\u4e0d\u660e\u3067\u3059\u3002<\/p>\n
<\/p>\n<\/p>\n<\/p>\n
\u305d\u3057\u3066\u3001LED\u306e\u4f4d\u7f6e\u306f\u3001\u88cf\u9762\u306e\u30b5\u30a4\u30c9\u5bc4\u308a\u306b\u3064\u3051\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n
<\/p>\n
\u30b1\u30fc\u30b9\u306b\u7d44\u307f\u8fbc\u3093\u3060\u6642\u3001\u3053\u306e\u4f4d\u7f6e\u3060\u3063\u305f\u3089\u5149\u3063\u3066\u3044\u308b\u306e\u304c\u308f\u304b\u308b\u304b\u306a\u3068\u3002<\/p>\n
<\/p>\n
GND \u3082\u3079\u305f\u30a2\u30fc\u30b9\u3092\u53d6\u3063\u305f\u307b\u3046\u304c\u3044\u3044\u3060\u308d\u3046\u306a\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3002<\/p>\n
<\/p>\n
<\/p>\n
\u3053\u306e\u3079\u305f\u30a2\u30fc\u30b9\u3092\u53d6\u308b\u304b\u53d6\u3089\u306a\u3044\u304b\u3067\u3001\u4f55\u304c\u5909\u308f\u308b\u306e\u3060\u308d\u3046\uff1f<\/p>\n
<\/p>\n<\/p>\n
\u71b1\u51e6\u7406\u306f\u3053\u308c\u3067OK\u3002<\/p>\n
\u3042\u3001EN\u30d4\u30f3\u3092\u5fd8\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002\u6700\u7d42\u78ba\u8a8d\u306e\u6642\u306b\u3084\u308a\u307e\u3059\u304b\u3002<\/p>\n
<\/p>\n
\u7de8\u96c6\u5f8c\u8a18<\/p>\n
\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3092\u898b\u76f4\u3057\u3066\u307f\u308b\u3068\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u306b\u3064\u3044\u3066\u306e\u8003\u5bdf \u306e\u9805\u304c\u3042\u308a\u307e\u3057\u305f\u3002PGND \u3068 GND \u3092\u5206\u3051\u308b\u7406\u7531\u306f\u3001\u5f15\u7528\u3059\u308b\u3068\u4ee5\u4e0b\u3067\u3059\u3002<\/p>\n
\n\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8 P.15<\/a><\/p>\n
\u30ec\u30a4\u30a2\u30a6\u30c8\u306b\u3064\u3044\u3066\u306e\u8003\u5bdf<\/p>\n
::<\/p>\n
\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\uff65\u30b0\u30e9\u30f3\u30c9\u3092\u9069\u5207\u306b\u914d\u7f6e\u3059\u308b\u306b\u306f\u3001\u914d\u7dda\u3092\u77ed\u304f\u3057\u3001\u3055\u3089\u306b\u96fb\u6e90\u30b0\u30e9\u30f3\u30c9\u306e\u914d\u7dda\u304b\u3089\u5206\u96e2\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002\u3053\u306e\u3053\u3068\u306b\u3088\u308a\u3001\u96fb\u6e90\u30b0\u30e9\u30f3\u30c9\u306e\u96fb\u6d41\u3068\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\uff65\u30b0\u30e9\u30f3\u30c9\u306e\u96fb\u6d41\u306e\u91cd\u306a\u308a\u5408\u3044\u306b\u3088\u308a\u8d77\u3053\u308a\u5f97\u308b\u30b0\u30e9\u30f3\u30c9\uff65\u30b7\u30d5\u30c8\u306e\u554f\u984c\u304c\u907f\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n
::\u82f1\u6587 P.16<\/a><\/p>\n
To lay out the control ground, it is recommended to use short traces as well, separated from the power ground traces. This avoids ground shift problems, which can occur due to superimposition of power ground current and control ground current.<\/p>\n<\/blockquote>\n
\u3053\u306e\u300c\u30b0\u30e9\u30f3\u30c9\u30fb\u30b7\u30d5\u30c8\u306e\u554f\u984c\u300d\u3068\u3044\u3046\u306e\u306f\u3001\u304a\u305d\u3089\u304f\u300c\u30b0\u30e9\u30f3\u30c9GND\u306e\u96fb\u4f4d\u304c\u6d6e\u304d\u4e0a\u304c\u308b\u300d\u4e8b\u304b\u3068\u3002<\/p>\n
\u4ee5\u4e0b\u306e\u7279\u8a31\u306e\u8cc7\u6599\u304c\u8a73\u3057\u3044\u3067\u3059\u3002<\/p>\n
\n\u30eb\u30cd\u30b5\u30b9 \u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u682a\u5f0f\u4f1a\u793e<\/p>\n
\u3010\u516c\u958b\u756a\u53f7\u3011\u7279\u958b2010\uff0d73951\uff08P2010\uff0d73951A\uff09<\/a><\/p>\n
::<\/p>\n
\u3010\uff10\uff11\uff14\uff12\u3011
\u56f3\uff11\uff12\u306f\u3001\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u56de\u8def\uff32\uff45\uff47\u3001\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff11\u304a\u3088\u3073\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff12\u304c\u3001\u91d1\u5c5e\u914d\u7dda\uff4d\uff45\uff54\uff41\uff4c\uff36\u3068\u91d1\u5c5e\u914d\u7dda\uff4d\uff45\uff54\uff41\uff4c\uff27\u3068\u306b\u305d\u308c\u305e\u308c\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u8a73\u7d30\u3092\u793a\u3059\u56f3\u3067\u3042\u308b\u3002\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff11\u304a\u3088\u3073\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff12\u306f\u3001\u56f3\uff11\u306b\u793a\u3059\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\u304c\u8907\u6570\u8a2d\u3051\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u3002
\u3010\uff10\uff11\uff14\uff13\u3011
\u56f3\uff11\uff12\uff08\uff41\uff09\u306f\u3001\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u56de\u8def\uff32\uff45\uff47\u3001\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff11\u304a\u3088\u3073\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff12\u304c\u3001\u305d\u308c\u305e\u308c\u30d1\u30c3\u30c9\uff27\u306b\u5171\u901a\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3059\u56f3\u3067\u3042\u308b\u3002\u56f3\uff11\uff12\uff08\uff42\uff09\u306f\u3001\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u56de\u8def\uff32\uff45\uff47\u304c\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u30d1\u30c3\u30c9\uff27\u3068\u3001\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff11\u304a\u3088\u3073\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff12\u304c\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u30d1\u30c3\u30c9\uff27\u3068\u304c\u5206\u3051\u3066\u8a2d\u3051\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3059\u56f3\u3067\u3042\u308b\u3002
\u3010\uff10\uff11\uff14\uff14\u3011
\u56f3\uff11\uff12\uff08\uff41\uff09\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u56de\u8def\uff32\uff45\uff47\u3001\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff11\u304a\u3088\u3073\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff12\u306f\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\uff30\uff2b\uff27\u306e\u5916\u90e8\u3088\u308a\u5916\u90e8\u96fb\u6e90\u96fb\u5727\uff45\uff58\uff54\uff36\uff43\uff43\u3092\u4f9b\u7d66\u3055\u308c\u308b\u30d1\u30c3\u30c9\uff36\u3068\u91d1\u5c5e\u914d\u7dda\uff4d\uff45\uff54\uff41\uff4c\uff36\u306b\u3088\u308a\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u3002
\u3010\uff10\uff11\uff14\uff15\u3011
\u3055\u3089\u306b\u3001\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u56de\u8def\uff32\uff45\uff47\u3001\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff11\u304a\u3088\u3073\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff12\u306f\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\uff30\uff2b\uff27\u306e\u5916\u90e8\u3088\u308a\u63a5\u5730\u96fb\u5727\uff08\u30b0\u30e9\u30f3\u30c9\uff09\uff27\uff2e\uff24\u304c\u4e0e\u3048\u3089\u308c\u308b\u30d1\u30c3\u30c9\uff27\u3068\u91d1\u5c5e\u914d\u7dda\uff4d\uff45\uff54\uff41\uff4c\uff27\u306b\u3088\u308a\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u3002
\u3010\uff10\uff11\uff14\uff16\u3011
\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff11\u304a\u3088\u3073\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff11\uff0d\uff12\u304c\u3001\u5185\u90e8\u56de\u8def\uff43\uff49\uff52\uff43\uff12\u3068\u4fe1\u53f7\u306e\u9001\u53d7\u4fe1\u3092\u884c\u3046\u3068\u3001\u91d1\u5c5e\u914d\u7dda\uff4d\uff45\uff54\uff41\uff4c\uff27\u306b\u5404\u56de\u8def\u304b\u3089\u96fb\u6d41\uff49\u304c\u6d41\u308c\u308b\u3002\u91d1\u5c5e\u914d\u7dda\uff4d\uff45\uff54\uff41\uff4c\uff27\u306f\u3001\u914d\u7dda\u62b5\u6297\uff32\u3092\u6709\u3057\u3066\u304a\u308a\u3001\u3053\u3053\u306b\uff12\u56de\u8def\u304b\u3089\u96fb\u6d41\u304c\u6d41\u308c\u308b\u305f\u3081\u3001\uff12\uff49\uff32\uff08\uff1d\uff36\uff09\u306e\u96fb\u5727\u304c\u767a\u751f\u3059\u308b\u3002
\u3010\uff10\uff11\uff14\uff17\u3011
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\u3010\uff10\uff11\uff15\uff10\u3011
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<\/p>\n<\/blockquote>\n
\u53b3\u5bc6\u306b\u306fGND\u306b\u843d\u3061\u308b\u3068\u304d\u306b\u3082\u914d\u7dda\u62b5\u6297\u304c\u3042\u308b\u306e\u3067\u3001\u96fb\u4f4d\u5dee\u304c\u767a\u751f\u3057\u3001\u3053\u308c\u3092\u30b0\u30e9\u30f3\u30c9\u30fb\u30b7\u30d5\u30c8\u3068\u3044\u3046\u305d\u3046\u3067\u3059\u3002\u96fb\u6e90\u56de\u8defA\u3068\u30ed\u30b8\u30c3\u30af\u56de\u8defB\u306eGND\u3078\u5f71\u97ff\u3092\u53d7\u3051\u306a\u304f\u3059\u308b\u305f\u3081\u3001GND\u3092\u5206\u96e2\u3059\u308b\u3068\u3044\u3044\u3088\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u8981\u3059\u308b\u306b\u826f\u3044GND \u3068\u306f\u30010V \u3092\u5e38\u306b\u30ad\u30fc\u30d7\u3059\u308b\u3053\u3068\u3002\u3079\u305f\u30a2\u30fc\u30b9\u3068\u304b\u3001\u97f3\u97ff\u8a2d\u5099\u3067\u30a2\u30fc\u30b9\u304c\u5927\u4e8b\u3060\u3068\u304b\u3001\u305d\u3046\u3044\u3046\u7406\u7531\u3060\u3063\u305f\u306e\u3067\u3059\u306d\u3002\u7d0d\u5f97\u3067\u3059\u3002<\/p>\n
<\/p>\n
\u53c2\u8003<\/p>\n
\n\u30b9\u30c8\u30ed\u30d9\u30ea\u30fc\u30ea\u30ca\u30c3\u30af\u30b9\u3055\u3093\u306e\u30b5\u30fc\u30e2\u30b0\u30e9\u30d5\u30a3\u753b\u50cf<\/a><\/p>\n
\u3079\u305f\u30d1\u30bf\u30fc\u30f3\u306e\u63cf\u753b<\/a><\/p>\n
\u30d1\u30bf\u30fc\u30f3\u56f3\u4f5c\u6210\u306e\u30c6\u30af\u30cb\u30c3\u30af (8)<\/a><\/p>\n