{"id":34456,"date":"2023-04-21T22:54:18","date_gmt":"2023-04-22T03:54:18","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-a-signal-generator\/"},"modified":"2025-01-20T23:23:11","modified_gmt":"2025-01-21T04:23:11","slug":"how-to-make-a-signal-generator","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/zh-hans\/how-to-make-a-signal-generator\/","title":{"rendered":"\u81ea\u5236\u4fe1\u53f7\u53d1\u751f\u5668\uff1a\u539f\u7406\u8be6\u89e3\u4e0e\u7535\u8def\u8bbe\u8ba1\u5b9e\u8df5\u6307\u5357"},"content":{"rendered":"<p>\u4fe1\u53f7\u53d1\u751f\u5668\u662f\u4e00\u79cd\u80fd\u591f\u4ea7\u751f\u5404\u79cd\u4e0d\u540c\u6ce2\u5f62\u3001\u9891\u7387\u548c\u5e45\u5ea6\u7684\u7535\u5b50\u4fe1\u53f7\u7684\u8bbe\u5907\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7535\u5b50\u7535\u8def\u6d4b\u8bd5\u3001\u79d1\u7814\u5b9e\u9a8c\u3001\u6559\u5b66\u6f14\u793a\u7b49\u9886\u57df\u3002\u5236\u4f5c\u4e00\u4e2a\u7b80\u5355\u7684\u4fe1\u53f7\u53d1\u751f\u5668\u5e76\u975e\u96be\u4e8b\uff0c\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5229\u7528\u5e38\u89c1\u7684\u7535\u5b50\u5143\u5668\u4ef6\u5236\u4f5c\u4e00\u4e2a\u57fa\u672c\u7684\u4fe1\u53f7\u53d1\u751f\u5668\uff0c\u5e76\u63a2\u8ba8\u4e0d\u540c\u65b9\u6848\u7684\u4f18\u7f3a\u70b9\u3002<\/p>\n<h3>1. \u57fa\u4e8e555\u5b9a\u65f6\u5668\u7684\u65b9\u6ce2\u4fe1\u53f7\u53d1\u751f\u5668<\/h3>\n<p>555\u5b9a\u65f6\u5668\u662f\u5e38\u7528\u7684\u96c6\u6210\u7535\u8def\uff0c\u5176\u5185\u90e8\u5305\u542b\u4e00\u4e2a\u7a33\u5b9a\u7684\u65bd\u5bc6\u7279\u89e6\u53d1\u5668\u548c\u4e00\u4e2a\u6bd4\u8f83\u5668\uff0c\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u6784\u5efa\u4e00\u4e2a\u65b9\u6ce2\u4fe1\u53f7\u53d1\u751f\u5668\u3002\u901a\u8fc7\u8c03\u6574\u5916\u63a5\u7535\u963b\u548c\u7535\u5bb9\u7684\u6570\u503c\uff0c\u53ef\u4ee5\u6539\u53d8\u8f93\u51fa\u65b9\u6ce2\u7684\u9891\u7387\u3002<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u5143\u4ef6<\/th>\n<th>\u7b26\u53f7<\/th>\n<th>\u53c2\u6570<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>555\u5b9a\u65f6\u5668<\/td>\n<td>IC1<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u963b<\/td>\n<td>R1<\/td>\n<td>1k\u03a9<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u963b<\/td>\n<td>R2<\/td>\n<td>10k\u03a9<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u5bb9<\/td>\n<td>C1<\/td>\n<td>0.1uF &#8211; 10uF\u53ef\u8c03<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u6e90<\/td>\n<td>VCC<\/td>\n<td>+5V<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u51fa\u7aef<\/td>\n<td>OUT<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7535\u8def\u539f\u7406\uff1aR1\u3001R2\u548cC1\u5171\u540c\u51b3\u5b9a\u4e86555\u5b9a\u65f6\u5668\u7684\u632f\u8361\u9891\u7387\u3002\u9891\u7387\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1af = 1.44 \/ ((R1 + 2R2) * C1)\u3002 \u901a\u8fc7\u6539\u53d8C1\u7684\u503c\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8c03\u6574\u8f93\u51fa\u65b9\u6ce2\u7684\u9891\u7387\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7535\u5bb9C1\u7684\u8010\u538b\u503c\u9700\u8981\u9ad8\u4e8e\u7535\u6e90\u7535\u538b\u3002<\/p>\n<h3>2. \u57fa\u4e8eNE555\u7684\u4e09\u89d2\u6ce2\u4fe1\u53f7\u53d1\u751f\u5668<\/h3>\n<p>\u867d\u7136555\u5b9a\u65f6\u5668\u4e3b\u8981\u7528\u4e8e\u4ea7\u751f\u65b9\u6ce2\uff0c\u4f46\u901a\u8fc7\u52a0\u5165\u79ef\u5206\u7535\u8def\uff0c\u53ef\u4ee5\u5c06\u5176\u8f6c\u6362\u4e3a\u4e09\u89d2\u6ce2\u4fe1\u53f7\u53d1\u751f\u5668\u3002  \u8fd9\u9700\u8981\u989d\u5916\u589e\u52a0\u4e00\u4e2a\u8fd0\u7b97\u653e\u5927\u5668\u6765\u5b9e\u73b0\u79ef\u5206\u529f\u80fd\u3002<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u5143\u4ef6<\/th>\n<th>\u7b26\u53f7<\/th>\n<th>\u53c2\u6570<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NE555\u5b9a\u65f6\u5668<\/td>\n<td>IC1<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<tr>\n<td>\u8fd0\u7b97\u653e\u5927\u5668<\/td>\n<td>IC2<\/td>\n<td>741\u6216\u7c7b\u4f3c\u578b\u53f7<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u963b<\/td>\n<td>R1, R3, R4<\/td>\n<td>1k\u03a9, 10k\u03a9, 10k\u03a9<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u963b<\/td>\n<td>R2<\/td>\n<td>10k\u03a9<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u5bb9<\/td>\n<td>C1<\/td>\n<td>0.1uF &#8211; 10uF\u53ef\u8c03<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u5bb9<\/td>\n<td>C2<\/td>\n<td>1uF<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u6e90<\/td>\n<td>VCC<\/td>\n<td>\u00b115V<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u51fa\u7aef<\/td>\n<td>OUT<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8fd9\u4e2a\u7535\u8def\u76f8\u5bf9\u590d\u6742\uff0c\u9700\u8981\u4e00\u5b9a\u7684\u7535\u5b50\u7535\u8def\u57fa\u7840\u624d\u80fd\u7406\u89e3\u548c\u5236\u4f5c\u3002 \u8fd0\u7b97\u653e\u5927\u5668\u9700\u8981\u53cc\u7535\u6e90\u4f9b\u7535\u3002<\/p>\n<h3>3.  \u57fa\u4e8e\u5355\u7247\u673a\u7684\u4fe1\u53f7\u53d1\u751f\u5668<\/h3>\n<p>\u4f7f\u7528\u5355\u7247\u673a\u53ef\u4ee5\u4ea7\u751f\u66f4\u590d\u6742\u7684\u6ce2\u5f62\uff0c\u4f8b\u5982\u6b63\u5f26\u6ce2\u3001\u952f\u9f7f\u6ce2\u7b49\uff0c\u5e76\u5177\u6709\u66f4\u9ad8\u7684\u7cbe\u5ea6\u548c\u66f4\u7075\u6d3b\u7684\u63a7\u5236\u65b9\u5f0f\u3002  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table-bordered\">\n<thead>\n<tr>\n<th>\u4f18\u70b9<\/th>\n<th>\u7f3a\u70b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u53ef\u4ee5\u4ea7\u751f\u591a\u79cd\u590d\u6742\u7684\u6ce2\u5f62<\/td>\n<td>\u9700\u8981\u4e00\u5b9a\u7684\u7f16\u7a0b\u77e5\u8bc6<\/td>\n<\/tr>\n<tr>\n<td>\u9891\u7387\u548c\u5e45\u5ea6\u53ef\u4ee5\u7cbe\u786e\u63a7\u5236<\/td>\n<td>\u6210\u672c\u76f8\u5bf9\u8f83\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6ce2\u5f62\u53c2\u6570\u7684\u8c03\u6574\u548c\u8bbe\u7f6e<\/td>\n<td>\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u5355\u7247\u673a\u548c\u5916\u56f4\u7535\u8def<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>4.  \u4e00\u4e9b\u989d\u5916\u7684\u8003\u8651\u56e0\u7d20<\/h3>\n<p>\u9009\u62e9\u5408\u9002\u7684\u5143\u5668\u4ef6\u81f3\u5173\u91cd\u8981\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u53c2\u6570\u548c\u7cbe\u5ea6\u3002  \u7535\u8def\u5236\u4f5c\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u4ed4\u7ec6\u710a\u63a5\uff0c\u907f\u514d\u77ed\u8def\u6216\u865a\u710a\u3002  \u8c03\u8bd5\u8fc7\u7a0b\u4e2d\uff0c\u5efa\u8bae\u4f7f\u7528\u793a\u6ce2\u5668\u89c2\u5bdf\u8f93\u51fa\u6ce2\u5f62\uff0c\u5e76\u6839\u636e\u9700\u8981\u8c03\u6574\u5143\u4ef6\u53c2\u6570\u3002  \u5bf9\u4e8e\u9ad8\u9891\u4fe1\u53f7\u53d1\u751f\u5668\uff0c\u9700\u8981\u8003\u8651\u7535\u8def\u7684\u5bc4\u751f\u53c2\u6570\u7684\u5f71\u54cd\u3002<\/p>\n<p>\u6700\u7ec8\uff0c\u9009\u62e9\u54ea\u79cd\u7c7b\u578b\u7684\u4fe1\u53f7\u53d1\u751f\u5668\u53d6\u51b3\u4e8e\u4f60\u7684\u6280\u80fd\u6c34\u5e73\u3001\u9884\u7b97\u548c\u6240\u9700\u4fe1\u53f7\u7684\u590d\u6742\u7a0b\u5ea6\u3002  \u57fa\u4e8e555\u5b9a\u65f6\u5668\u7684\u65b9\u6848\u7b80\u5355\u6613\u884c\uff0c\u9002\u5408\u521d\u5b66\u8005\uff1b\u800c\u57fa\u4e8e\u5355\u7247\u673a\u7684\u65b9\u6848\u5219\u529f\u80fd\u5f3a\u5927\uff0c\u9002\u5408\u66f4\u590d\u6742\u7684\u5e94\u7528\u573a\u666f\u3002  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