{"id":4749,"date":"2021-10-21T19:21:53","date_gmt":"2021-10-21T11:21:53","guid":{"rendered":"http:\/\/www.szryc.com\/?p=4749"},"modified":"2021-10-21T19:26:51","modified_gmt":"2021-10-21T11:26:51","slug":"%e5%b8%a6%e9%9c%8d%e5%b0%94%e4%bc%a0%e6%84%9f%e5%99%a8%e7%9a%84%e4%b8%89%e7%9b%b8%e6%97%a0%e5%88%b7%e7%9b%b4%e6%b5%81%e7%94%b5%e6%9c%ba%e6%8e%a7%e5%88%b6","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=4749","title":{"rendered":"\u5e26\u970d\u5c14\u4f20\u611f\u5668\u7684\u4e09\u76f8\u65e0\u5237\u76f4\u6d41\u7535\u673a\u63a7\u5236"},"content":{"rendered":"

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\u6805\u6781\u9a71\u52a8\u5668\u6a21\u5757\u5305\u62ec 12 \u4e2a 3 \u4f4d LUT\uff0c\u53ef\u6839\u636e\u970d\u5c14\u4f20\u611f\u5668\u7684\u53cd\u9988\u5bf9\u5916\u90e8\u6676\u4f53\u7ba1<\/u>\u8fdb\u884c\u6362\u5411\u3002\u5176\u4e2d 6 \u4e2a LUT\uff083 \u4f4d LUT8 \u2013 3 \u4f4d LUT13\uff09\u7528\u4e8e CW \u65b9\u5411\uff0c\u53e6\u5916 6 \u4e2a\uff083 \u4f4d LUT1 \u2013 3 \u4f4d LUT6\uff09\u7528\u4e8e\u5207\u6362\u5230 CCW \u65b9\u5411\u3002\u8be5\u6a21\u5757\u8fd8\u5305\u62ec 3 \u4e2a 2 \u4f4d LUT\uff082 \u4f4d LUT4\u30012 \u4f4d LUT5 \u548c 2 \u4f4d LUT6\uff09\uff0c\u7528\u4e8e\u5c06\u6bcf\u76f8 PMOS\u00a0\u6676\u4f53<\/u>\u7ba1\u7684\u4fe1\u53f7\u4e0e PWM \u6df7\u5408\uff0c\u4ee5\u786e\u4fdd\u8f6c\u901f\u4e0e\u8d1f\u8f7d\u65e0\u5173\u3002<\/p>\n

PWM \u63a7\u5236\u5305\u62ec PWM2 \u7ec4\u4ef6\u3001\u8ba1\u6570\u5668 CNT8\u3001\u6709\u9650\u72b6\u6001\u673a FSM1\u30013 \u4f4d LUT15\u30012 \u4e2a DFF\uff08DFF0 \u548c DFF1\uff09\u3001\u4e0a\u5347\u6cbf\u68c0\u6d4b\u5668 PDLY0 \u548c\u53cd\u76f8\u5668 INV0\u3002DFF0 \u548c DFF1 \u4e00\u8d77\u7528\u4f5c\u9891\u7387\u6bd4\u8f83\u5668<\/u>\uff1b\u5f53\u8f93\u5165\u9891\u7387\u9ad8\u4e8e\u970d\u5c14\u9891\u7387\u65f6\uff0cDFF0 nQ \u8f93\u51fa\u53d8\u4e3a\u4f4e\u7535\u5e73\uff1b\u5f53\u8f93\u5165\u9891\u7387\u4f4e\u4e8e\u970d\u5c14\u9891\u7387\u65f6\uff0cDFF1 nQ \u8f93\u51fa\u53d8\u4e3a\u4f4e\u7535\u5e73\u3002\u5728\u201c+\u201d\u8f93\u5165\u4e3a\u4f4e\u7535\u5e73\u65f6\uff0cPWM2 OUT+ \u8f93\u51fa\u5c06\u751f\u6210\u5360\u7a7a\u6bd4\u8303\u56f4\u4e3a 256\/256 \u81f3 1\/256 \u7684 PWM \u4fe1\u53f7\u3002\u5728\u201c-\u201d\u8f93\u5165\u4e3a\u4f4e\u7535\u5e73\u65f6\uff0cPWM2 OUT+ \u5c06\u751f\u6210\u5360\u7a7a\u6bd4\u4ece 1\/256 \u53d8\u5316\u5230 256\/256 \u7684 PWM\u3002PWM \u9891\u7387\u7ea6\u4e3a 100 kHz\uff0c\u542f\u52a8\u65f6 IC \u7684\u5360\u7a7a\u6bd4\u8bbe\u7f6e\u4e3a 0%\u3002\u7535\u673a\u505c\u6b62\uff0c\u76f4\u5230\u65bd\u52a0\u5230 PIN2 \u7684\u8f93\u5165\u9891\u7387\u3002\u5c06\u9891\u7387\u5e94\u7528\u5230 PIN2 \u540e\uff0cDFF0 nQ \u8f93\u51fa\u5c06\u53d8\u4f4e\uff0cPWM \u4f1a\u5c06\u5360\u7a7a\u6bd4\u4ece 0 \u589e\u52a0\u5230 99.6%\u3002\u7535\u673a\u5c06\u7ee7\u7eed\u65cb\u8f6c\uff0c\u76f4\u5230\u970d\u5c14\u4f20\u611f\u5668\u8d85\u8fc7\u8f93\u5165\u9891\u7387\u3002\u6b64\u65f6\uff0cDFF0 nQ \u8f93\u51fa\u5c06\u53d8\u4e3a\u9ad8\u7535\u5e73\uff0c\u800c DFF1 nQ \u8f93\u51fa\u5c06\u53d8\u4e3a\u4f4e\u7535\u5e73\u3002\u8fd9\u79cd\u53cd\u8f6c\u4f1a\u5bfc\u81f4 PWM \u5360\u7a7a\u6bd4\u5728\u7535\u673a\u4e0a\u770b\u5230\u7684\u5373\u65f6 VDD \u548c\u8d1f\u8f7d\u5904\u964d\u4f4e\u5230\u53ef\u63a5\u53d7\u7684\u503c\u3002\u8be5\u7cfb\u7edf\u5c06\u4e0d\u65ad\u5de5\u4f5c\u4ee5\u5e73\u8861 PWM \u5360\u7a7a\u6bd4\u3002FSM1\u3001CNT8\u30013 \u4f4d LUT15 \u548c PWM2 \u7684\u529f\u80fd\u5728 \u8fd9\u79cd\u53cd\u8f6c\u4f1a\u5bfc\u81f4 PWM \u5360\u7a7a\u6bd4\u5728\u7acb\u5373 VDD \u548c\u7535\u673a\u8d1f\u8f7d\u5904\u964d\u4f4e\u5230\u53ef\u63a5\u53d7\u7684\u503c\u3002\u8be5\u7cfb\u7edf\u5c06\u4e0d\u65ad\u5de5\u4f5c\u4ee5\u5e73\u8861 PWM \u5360\u7a7a\u6bd4\u3002FSM1\u3001CNT8\u30013 \u4f4d LUT15 \u548c PWM2 \u7684\u529f\u80fd\u5728 \u8fd9\u79cd\u53cd\u8f6c\u4f1a\u5bfc\u81f4 PWM \u5360\u7a7a\u6bd4\u5728\u7535\u673a\u4e0a\u770b\u5230\u7684\u5373\u65f6 VDD \u548c\u8d1f\u8f7d\u5904\u964d\u4f4e\u5230\u53ef\u63a5\u53d7\u7684\u503c\u3002\u8be5\u7cfb\u7edf\u5c06\u4e0d\u65ad\u5de5\u4f5c\u4ee5\u5e73\u8861 PWM \u5360\u7a7a\u6bd4\u3002FSM1\u3001CNT8\u30013 \u4f4d LUT15 \u548c PWM2 \u7684\u529f\u80fd\u5728\u5e94\u7528\u7b14\u8bb0 AN-1052\u3002<\/p>\n

\u4fdd\u62a4\u5757\u5305\u62ec 2 \u4e2a\u5ef6\u8fdf\uff08DLY2 \u548c DLY9\uff09\u3001\u8ba1\u6570\u5668 CNT0 \u548c\u914d\u7f6e\u4e3a XOR \u95e8\u7684 2 \u4f4d LUT0\u3002\u8fd9\u90e8\u5206\u8bbe\u8ba1\u7528\u4e8e\u4fdd\u62a4\u7535\u673a\u548c\u5916\u90e8 FET \u4e0d\u88ab\u70e7\u574f\u3002\u5982\u679c\u7535\u673a\u5361\u4f4f\u6216\u65e0\u6cd5\u542f\u52a8\uff0c\u970d\u5c14\u4f20\u611f\u5668\u5c06\u65e0\u6cd5\u63d0\u4f9b\u5173\u95ed\u7535\u673a\u6240\u9700\u7684\u53cd\u9988\u3002\u5982\u679c\u5728 100 \u6beb\u79d2\u540e\u6ca1\u6709\u6536\u5230\u53cd\u9988\uff0cDLY2 \u8f93\u51fa\u5c06\u53d8\u4e3a\u4f4e\u7535\u5e73\u5e76\u4e14 2 \u4f4d LUT0 \u5173\u95ed\u7535\u673a\u3002\u5982\u679c\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\uff0cCNT0 \u548c DLY9 \u4f1a\u5c1d\u8bd5\u6bcf 500 \u6beb\u79d2\u542f\u52a8\u4e00\u6b21\u7535\u673a\uff0c\u6301\u7eed 8 \u6beb\u79d2\u3002\u8fd9\u6bb5\u65f6\u95f4\u8db3\u4ee5\u542f\u52a8\u7535\u673a\uff0c\u4f46\u4e0d\u8db3\u4ee5\u5bf9\u7535\u673a\u9020\u6210\u635f\u574f\u3002<\/p>\n

\"pYYBAGFn3bSAFWHVAAX7DY-42Zg312-1\"<\/p>\n

\u7ed3\u8bba<\/p>\n

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\u4ee5\u524d\uff0c\u5982\u679c\u8bbe\u8ba1\u4eba\u5458\u5e0c\u671b\u63a7\u5236 BLDC \u7535\u673a\uff0c\u4ed6\u4eec\u5c06\u53d7\u5230\u7535\u6c14\u89c4\u683c\u548c\u4e13\u7528\u73b0\u6210 IC \u89e3\u51b3\u65b9\u6848\u529f\u80fd\u7684\u9650\u5236\u3002\u8fd9\u8feb\u4f7f\u8bbe\u8ba1\u4eba\u5458\u9009\u62e9\u529f\u80fd\u56fa\u5b9a\u4e14\u53ef\u80fd\u4f1a\u8fc7\u5ea6\u6740\u4f24\u6216\u6602\u8d35\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u8fd9\u901a\u5e38\u4f1a\u9650\u5236\u5176\u7cfb\u7edf\u7684 IO\u3002<\/p>\n

Dialog<\/u>\u00a0GreenPAK \u901a\u8fc7\u5c06\u53ef\u914d\u7f6e\u6027\u91cd\u65b0\u4ea4\u5230\u8bbe\u8ba1\u4eba\u5458\u624b\u4e2d\uff0c\u9006\u8f6c\u4e86\u8fd9\u4e00\u8bbe\u8ba1\u8fc7\u7a0b\u3002\u901a\u8fc7\u5c06\u6b64 GreenPAK \u5e94\u7528\u7a0b\u5e8f\u7528\u4f5c\u666e\u904d\u9002\u7528\uff08\u5c3d\u7ba1\u4e5f\u662f\u552f\u4e00\u53ef\u914d\u7f6e\u7684\uff09\u4e09\u76f8 BLDC \u7535\u673a\u63a7\u5236\u65b9\u6848\uff0c\u8bbe\u8ba1\u4eba\u5458\u53ef\u4ee5\u9009\u62e9\u6ee1\u8db3\u5176\u9879\u76ee\u72ec\u7279\u7535\u6c14\u89c4\u683c\u7684\u5f15\u811a\u5206\u914d\u548c\u5916\u90e8 FET\u3002\u6b64\u5916\uff0c\u5373\u4f7f\u8003\u8651\u5230\u5916\u90e8 FET\uff0cDialog GreenPAK \u89e3\u51b3\u65b9\u6848\u7684\u6210<\/p>\n","protected":false},"excerpt":{"rendered":"

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