{"id":10021220,"date":"2026-01-31T10:55:04","date_gmt":"2026-01-31T02:55:04","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021220"},"modified":"2026-01-31T10:55:04","modified_gmt":"2026-01-31T02:55:04","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88%e5%9f%ba%e6%9e%81%e5%92%8c%e5%8f%91%e5%b0%84%e6%9e%81%e8%a6%81%e5%b9%b6%e8%81%94%e4%b8%80%e4%b8%aa%e7%94%b5%e9%98%bb","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021220","title":{"rendered":"\u4e3a\u4ec0\u4e48\u57fa\u6781\u548c\u53d1\u5c04\u6781\u8981\u5e76\u8054\u4e00\u4e2a\u7535\u963b"},"content":{"rendered":"

\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\u3002<\/p>\n

\u5728\u5d4c\u5165\u5f0f\u7535\u8def\u8bbe\u8ba1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u770b\u5230\u4e09\u6781\u7ba1\u7684\u57fa\u6781\u548c\u53d1\u5c04\u6781\u4e4b\u95f4\u5e76\u8054\u4e86\u4e00\u4e2a\u7535\u963b\uff0c\u8fd9\u4e2a\u7535\u963b\u901a\u5e38\u88ab\u79f0\u4e3a”\u4e0b\u62c9\u7535\u963b”\u6216”\u504f\u7f6e\u7535\u963b”\u3002<\/p>\n

\u5f88\u591a\u521d\u5b66\u8005\u5bf9\u8fd9\u4e2a\u7535\u963b\u7684\u4f5c\u7528\u611f\u5230\u56f0\u60d1\uff0c\u4eca\u5929\u6211\u5c31\u6765\u8be6\u7ec6\u8bb2\u89e3\u4e00\u4e0b\u4e3a\u4ec0\u4e48\u8981\u52a0\u8fd9\u4e2a\u7535\u963b\uff0c\u4ee5\u53ca\u5b83\u5728\u5b9e\u9645\u7535\u8def\u4e2d\u7684\u91cd\u8981\u4f5c\u7528\u3002<\/p>\n

1. \u57fa\u672c\u539f\u7406\u56de\u987e<\/h2>\n

\u5728\u6df1\u5165\u8ba8\u8bba\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u7b80\u5355\u56de\u987e\u4e00\u4e0b\u4e09\u6781\u7ba1\u7684\u5de5\u4f5c\u539f\u7406\u3002\u4e09\u6781\u7ba1\u6709\u4e09\u4e2a\u6781\uff1a\u57fa\u6781\uff08Base\uff09\u3001\u53d1\u5c04\u6781\uff08Emitter\uff09\u548c\u96c6\u7535\u6781\uff08Collector\uff09\u3002<\/p>\n

\u5bf9\u4e8eNPN\u578b\u4e09\u6781\u7ba1\u6765\u8bf4\uff0c\u5f53\u57fa\u6781-\u53d1\u5c04\u6781\u4e4b\u95f4\u7684\u7535\u538bVBE<\/em>\u5927\u4e8e\u7ea60.7V\u65f6\uff0c\u4e09\u6781\u7ba1\u5c31\u4f1a\u5bfc\u901a\uff0c\u5141\u8bb8\u7535\u6d41\u4ece\u96c6\u7535\u6781\u6d41\u5411\u53d1\u5c04\u6781\u3002<\/p>\n

\u8fd9\u91cc\u6709\u4e00\u4e2a\u5173\u952e\u70b9\uff1a\u4e09\u6781\u7ba1\u7684\u5bfc\u901a\u4e0e\u5426\uff0c\u5b8c\u5168\u53d6\u51b3\u4e8e\u57fa\u6781-\u53d1\u5c04\u6781\u4e4b\u95f4\u7684\u7535\u538b\u3002<\/p>\n

\u5982\u679c\u57fa\u6781\u5904\u4e8e\u60ac\u7a7a\u72b6\u6001\u6216\u8005\u53d7\u5230\u5e72\u6270\uff0c\u4e09\u6781\u7ba1\u7684\u72b6\u6001\u5c31\u4f1a\u53d8\u5f97\u4e0d\u53ef\u63a7\uff0c\u8fd9\u6b63\u662f\u6211\u4eec\u9700\u8981\u5728\u57fa\u6781\u548c\u53d1\u5c04\u6781\u4e4b\u95f4\u52a0\u7535\u963b\u7684\u4e3b\u8981\u539f\u56e0\u4e4b\u4e00\u3002<\/p>\n

2. \u57fa\u6781-\u53d1\u5c04\u6781\u5e76\u8054\u7535\u963b\u7684\u4e3b\u8981\u4f5c\u7528<\/h2>\n

2.1 \u9632\u6b62\u57fa\u6781\u60ac\u7a7a<\/h3>\n

\u8fd9\u662f\u6700\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n

\u5728\u5b9e\u9645\u7535\u8def\u4e2d\uff0c\u5f53\u63a7\u5236\u4e09\u6781\u7ba1\u7684\u4fe1\u53f7\u6e90\u5904\u4e8e\u9ad8\u963b\u6001\u65f6\uff08\u6bd4\u5982\u5355\u7247\u673a\u7684GPIO\u5f15\u811a\u914d\u7f6e\u4e3a\u8f93\u5165\u6a21\u5f0f\uff0c\u6216\u8005\u7535\u8def\u65ad\u7535\uff09\uff0c\u57fa\u6781\u5c31\u4f1a\u5904\u4e8e\u60ac\u7a7a\u72b6\u6001\u3002<\/p>\n

\u60ac\u7a7a\u7684\u57fa\u6781\u5c31\u50cf\u4e00\u4e2a\u5929\u7ebf\uff0c\u4f1a\u62fe\u53d6\u5468\u56f4\u7684\u7535\u78c1\u5e72\u6270\u4fe1\u53f7\uff0c\u8fd9\u4e9b\u5e72\u6270\u53ef\u80fd\u5bfc\u81f4\u4e09\u6781\u7ba1\u610f\u5916\u5bfc\u901a\u3002<\/p>\n

\u4e3e\u4e2a\u5b9e\u9645\u7684\u4f8b\u5b50\uff0c\u5728STM32\u63a7\u5236\u7684\u7ee7\u7535\u5668\u7535\u8def\u4e2d\uff0c\u5982\u679c\u6ca1\u6709\u57fa\u6781-\u53d1\u5c04\u6781\u7535\u963b\uff0c\u5f53STM32\u590d\u4f4d\u6216\u8005GPIO\u5f15\u811a\u672a\u521d\u59cb\u5316\u65f6\uff0c\u7ee7\u7535\u5668\u53ef\u80fd\u4f1a\u56e0\u4e3a\u5e72\u6270\u800c\u8bef\u52a8\u4f5c\u3002<\/p>\n

\u8fd9\u5728\u5de5\u4e1a\u63a7\u5236\u573a\u5408\u662f\u975e\u5e38\u5371\u9669\u7684\u3002<\/p>\n

\u901a\u8fc7\u5728\u57fa\u6781\u548c\u53d1\u5c04\u6781\u4e4b\u95f4\u5e76\u8054\u4e00\u4e2a\u7535\u963b\uff08\u901a\u5e38\u662f10k<\/em>\u03a9\u5230100k<\/em>\u03a9\uff09\uff0c\u6211\u4eec\u4e3a\u57fa\u6781\u63d0\u4f9b\u4e86\u4e00\u4e2a\u786e\u5b9a\u7684\u4f4e\u7535\u5e73\u901a\u8def\u3002<\/p>\n

\u5f53\u63a7\u5236\u4fe1\u53f7\u65ad\u5f00\u65f6\uff0c\u8fd9\u4e2a\u7535\u963b\u4f1a\u5c06\u57fa\u6781\u7535\u538b\u62c9\u5230\u4e0e\u53d1\u5c04\u6781\u76f8\u540c\u7684\u7535\u4f4d\uff0c\u786e\u4fdd\u4e09\u6781\u7ba1\u53ef\u9760\u622a\u6b62\u3002<\/p>\n

2.2 \u63d0\u4f9b\u6cc4\u653e\u901a\u8def<\/h3>\n

\u4e09\u6781\u7ba1\u7684\u57fa\u6781-\u53d1\u5c04\u6781\u7ed3\u672c\u8d28\u4e0a\u662f\u4e00\u4e2aPN\u7ed3\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u7ed3\u7535\u5bb9\u3002<\/p>\n

\u5f53\u57fa\u6781\u4ece\u9ad8\u7535\u5e73\u5207\u6362\u5230\u4f4e\u7535\u5e73\u65f6\uff0c\u8fd9\u4e2a\u7ed3\u7535\u5bb9\u4e0a\u5b58\u50a8\u7684\u7535\u8377\u9700\u8981\u6709\u4e00\u4e2a\u91ca\u653e\u901a\u8def\u3002<\/p>\n

\u5982\u679c\u6ca1\u6709\u57fa\u6781-\u53d1\u5c04\u6781\u7535\u963b\uff0c\u7535\u8377\u53ea\u80fd\u901a\u8fc7\u63a7\u5236\u7535\u8def\u7f13\u6162\u6cc4\u653e\uff0c\u5bfc\u81f4\u4e09\u6781\u7ba1\u5173\u65ad\u901f\u5ea6\u53d8\u6162\u3002<\/p>\n

\u52a0\u4e0a\u8fd9\u4e2a\u7535\u963b\u540e\uff0c\u5b58\u50a8\u7684\u7535\u8377\u53ef\u4ee5\u5feb\u901f\u901a\u8fc7\u7535\u963b\u6cc4\u653e\u5230\u53d1\u5c04\u6781\uff0c\u5927\u5927\u63d0\u9ad8\u4e86\u4e09\u6781\u7ba1\u7684\u5173\u65ad\u901f\u5ea6\u3002<\/p>\n

\u8fd9\u5728\u9ad8\u9891\u5f00\u5173\u7535\u8def\u4e2d\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5728PWM\u63a7\u5236\u7684LED\u9a71\u52a8\u7535\u8def\u4e2d\uff0c\u5982\u679c\u4e09\u6781\u7ba1\u5173\u65ad\u901f\u5ea6\u592a\u6162\uff0c\u5c31\u4f1a\u5bfc\u81f4LED\u5728\u5e94\u8be5\u7184\u706d\u65f6\u4ecd\u6709\u5fae\u5f31\u53d1\u5149\uff0c\u5f71\u54cd\u8c03\u5149\u6548\u679c\u3002<\/p>\n

2.3 \u589e\u5f3a\u6297\u5e72\u6270\u80fd\u529b<\/h3>\n

\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u7535\u78c1\u5e72\u6270\u662f\u4e00\u4e2a\u5e38\u89c1\u95ee\u9898\u3002<\/p>\n

PCB\u677f\u4e0a\u7684\u9ad8\u9891\u4fe1\u53f7\u3001\u7535\u6e90\u7eb9\u6ce2\u3001\u5916\u90e8\u7535\u78c1\u573a\u7b49\u90fd\u53ef\u80fd\u5728\u57fa\u6781\u5f15\u5165\u5e72\u6270\u4fe1\u53f7\u3002<\/p>\n

\u57fa\u6781-\u53d1\u5c04\u6781\u7535\u963b\u76f8\u5f53\u4e8e\u4e3a\u57fa\u6781\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4f4e\u963b\u6297\u7684\u63a5\u5730\u8def\u5f84\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5c06\u8fd9\u4e9b\u5e72\u6270\u4fe1\u53f7\u65c1\u8def\u5230\u5730\uff0c\u63d0\u9ad8\u7535\u8def\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n

\u8fd9\u4e2a\u7535\u963b\u7684\u963b\u503c\u9009\u62e9\u5f88\u6709\u8bb2\u7a76\u3002<\/p>\n

\u963b\u503c\u592a\u5c0f\u4f1a\u589e\u52a0\u63a7\u5236\u7535\u8def\u7684\u8d1f\u62c5\uff0c\u963b\u503c\u592a\u5927\u5219\u8d77\u4e0d\u5230\u826f\u597d\u7684\u6297\u5e72\u6270\u6548\u679c\u3002<\/p>\n

\u4e00\u822c\u6765\u8bf4\uff0c10k<\/em>\u03a9\u523047k<\/em>\u03a9\u662f\u6bd4\u8f83\u5e38\u7528\u7684\u53d6\u503c\u8303\u56f4\u3002<\/p>\n

3. \u5b9e\u9645\u5e94\u7528\u6848\u4f8b<\/h2>\n

\u8ba9\u6211\u7ed9\u5927\u5bb6\u5c55\u793a\u4e00\u4e2a\u5178\u578b\u7684STM32\u63a7\u5236\u7ee7\u7535\u5668\u7684\u7535\u8def\u8bbe\u8ba1\u6848\u4f8b\uff0c\u8fd9\u6837\u53ef\u4ee5\u66f4\u76f4\u89c2\u5730\u7406\u89e3\u8fd9\u4e2a\u7535\u963b\u7684\u4f5c\u7528\u3002<\/p>\n

\/\/ STM32 HAL\u5e93\u63a7\u5236\u7ee7\u7535\u5668\u7684\u4ee3\u7801\u793a\u4f8b\n\/\/ \u786c\u4ef6\u8fde\u63a5\uff1aPA5 -> \u57fa\u6781\u9650\u6d41\u7535\u963b -> \u4e09\u6781\u7ba1\u57fa\u6781\n\/\/          \u4e09\u6781\u7ba1\u57fa\u6781-\u53d1\u5c04\u6781\u4e4b\u95f4\u5e76\u805410k\u03a9\u7535\u963b\n\/\/          \u4e09\u6781\u7ba1\u96c6\u7535\u6781 -> \u7ee7\u7535\u5668\u7ebf\u5708 -> VCC\n\/\/          \u53d1\u5c04\u6781 -> GND\n\n#include "main.h"\n\n\/\/ \u521d\u59cb\u5316GPIO\nvoid Relay_Init(void)\n{\n    GPIO_InitTypeDef GPIO_InitStruct = {0};\n    \n    \/\/ \u4f7f\u80fdGPIOA\u65f6\u949f\n    __HAL_RCC_GPIOA_CLK_ENABLE();\n    \n    \/\/ \u914d\u7f6ePA5\u4e3a\u63a8\u633d\u8f93\u51fa\n    GPIO_InitStruct.Pin = GPIO_PIN_5;\n    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;\n    GPIO_InitStruct.Pull = GPIO_NOPULL;\n    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;\n    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);\n    \n    \/\/ \u521d\u59cb\u5316\u4e3a\u4f4e\u7535\u5e73\uff0c\u786e\u4fdd\u7ee7\u7535\u5668\u5173\u95ed\n    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);\n}\n\n\/\/ \u63a7\u5236\u7ee7\u7535\u5668\u5f00\u5173\nvoid Relay_Control(uint8_t state)\n{\n    if(state)\n    {\n        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);  \/\/ \u7ee7\u7535\u5668\u5438\u5408\n    }\n    else\n    {\n        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET); \/\/ \u7ee7\u7535\u5668\u91ca\u653e\n    }\n}\n\n\/\/ \u4e3b\u51fd\u6570\u793a\u4f8b\nint main(void)\n{\n    HAL_Init();\n    SystemClock_Config();\n    Relay_Init();\n    \n    while(1)\n    {\n        Relay_Control(1);  \/\/ \u6253\u5f00\u7ee7\u7535\u5668\n        HAL_Delay(1000);\n        \n        Relay_Control(0);  \/\/ \u5173\u95ed\u7ee7\u7535\u5668\n        HAL_Delay(1000);\n    }\n}<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u7535\u8def\u4e2d\uff0c\u57fa\u6781-\u53d1\u5c04\u6781\u5e76\u8054\u768410k<\/em>\u03a9\u7535\u963b\u8d77\u5230\u4e86\u5173\u952e\u4f5c\u7528\uff1a<\/p>\n
\u542f\u52a8\u9636\u6bb5\u7684\u4fdd\u62a4\uff1a<\/strong> \u5728STM32\u4e0a\u7535\u590d\u4f4d\u671f\u95f4\uff0cGPIO\u5f15\u811a\u7684\u72b6\u6001\u662f\u4e0d\u786e\u5b9a\u7684\u3002<\/p>\n
\u5982\u679c\u6ca1\u6709\u8fd9\u4e2a\u4e0b\u62c9\u7535\u963b\uff0c\u4e09\u6781\u7ba1\u53ef\u80fd\u4f1a\u56e0\u4e3a\u57fa\u6781\u60ac\u7a7a\u800c\u8bef\u5bfc\u901a\uff0c\u5bfc\u81f4\u7ee7\u7535\u5668\u5728\u7cfb\u7edf\u521d\u59cb\u5316\u5b8c\u6210\u524d\u5c31\u5438\u5408\uff0c\u8fd9\u53ef\u80fd\u4f1a\u9020\u6210\u8bbe\u5907\u8bef\u52a8\u4f5c\u3002<\/p>\n
\u6709\u4e86\u8fd9\u4e2a\u7535\u963b\uff0c\u5373\u4f7f\u5728\u521d\u59cb\u5316\u9636\u6bb5\uff0c\u57fa\u6781\u4e5f\u4f1a\u88ab\u53ef\u9760\u5730\u62c9\u5230\u4f4e\u7535\u5e73\uff0c\u786e\u4fdd\u7ee7\u7535\u5668\u4fdd\u6301\u5173\u95ed\u72b6\u6001\u3002<\/p>\n
\u5173\u65ad\u65f6\u7684\u5feb\u901f\u54cd\u5e94\uff1a<\/strong> \u5f53\u7a0b\u5e8f\u6267\u884cRelay_Control(0)<\/code>\u65f6\uff0cPA5\u8f93\u51fa\u4f4e\u7535\u5e73\u3002<\/p>\n
\u6b64\u65f6\uff0c\u4e09\u6781\u7ba1\u57fa\u6781\u7684\u7535\u8377\u9700\u8981\u5feb\u901f\u6cc4\u653e\u624d\u80fd\u53ef\u9760\u622a\u6b62\u3002<\/p>\n
\u57fa\u6781-\u53d1\u5c04\u6781\u7535\u963b\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4f4e\u963b\u6297\u7684\u6cc4\u653e\u901a\u8def\uff0c\u4f7f\u5f97\u7ee7\u7535\u5668\u80fd\u591f\u5feb\u901f\u91ca\u653e\uff0c\u54cd\u5e94\u65f6\u95f4\u901a\u5e38\u5728\u51e0\u5fae\u79d2\u5230\u51e0\u5341\u5fae\u79d2\u4e4b\u95f4\u3002<\/p>\n
\u5f02\u5e38\u60c5\u51b5\u7684\u4fdd\u62a4\uff1a<\/strong> \u5982\u679c\u7a0b\u5e8f\u8dd1\u98de\u6216\u8005STM32\u8fdb\u5165\u67d0\u79cd\u5f02\u5e38\u72b6\u6001\uff0cGPIO\u5f15\u811a\u53ef\u80fd\u4f1a\u53d8\u6210\u9ad8\u963b\u6001\u3002<\/p>\n
\u8fd9\u65f6\u5019\uff0c\u57fa\u6781-\u53d1\u5c04\u6781\u7535\u963b\u4f1a\u5c06\u4e09\u6781\u7ba1\u57fa\u6781\u62c9\u5230\u4f4e\u7535\u5e73\uff0c\u786e\u4fdd\u7ee7\u7535\u5668\u4e0d\u4f1a\u56e0\u4e3a\u7a0b\u5e8f\u5f02\u5e38\u800c\u4fdd\u6301\u5438\u5408\u72b6\u6001\uff0c\u8fd9\u5bf9\u4e8e\u5b89\u5168\u5173\u952e\u578b\u5e94\u7528\u975e\u5e38\u91cd\u8981\u3002<\/p>\n
4. \u7535\u963b\u53c2\u6570\u7684\u9009\u62e9<\/h2>\n
4.1 \u963b\u503c\u9009\u62e9\u539f\u5219<\/h3>\n
\u57fa\u6781-\u53d1\u5c04\u6781\u7535\u963b\u7684\u963b\u503c\u9009\u62e9\u9700\u8981\u7efc\u5408\u8003\u8651\u591a\u4e2a\u56e0\u7d20\uff1a<\/p>\n
\u4e0b\u62c9\u80fd\u529b\uff1a<\/strong> \u963b\u503c\u8d8a\u5c0f\uff0c\u4e0b\u62c9\u80fd\u529b\u8d8a\u5f3a\uff0c\u6297\u5e72\u6270\u80fd\u529b\u8d8a\u597d\u3002<\/p>\n
\u4f46\u662f\u963b\u503c\u592a\u5c0f\u4f1a\u589e\u52a0\u63a7\u5236\u7535\u8def\u7684\u9a71\u52a8\u8d1f\u62c5\u3002<\/p>\n
\u4e00\u822c\u6765\u8bf4\uff0c\u8fd9\u4e2a\u7535\u963b\u7684\u963b\u503c\u5e94\u8be5\u6bd4\u57fa\u6781\u9650\u6d41\u7535\u963b\u59275\u523010\u500d\u3002<\/p>\n
\u4f8b\u5982\uff0c\u5982\u679c\u57fa\u6781\u9650\u6d41\u7535\u963b\u662f1k<\/em>\u03a9\uff0c\u90a3\u4e48\u57fa\u6781-\u53d1\u5c04\u6781\u7535\u963b\u53ef\u4ee5\u9009\u62e910k<\/em>\u03a9\u523047k<\/em>\u03a9\u3002<\/p>\n
\u529f\u8017\u8003\u8651\uff1a<\/strong> \u5728\u7535\u6c60\u4f9b\u7535\u7684\u4fbf\u643a\u5f0f\u8bbe\u5907\u4e2d\uff0c\u529f\u8017\u662f\u4e00\u4e2a\u91cd\u8981\u8003\u91cf\u56e0\u7d20\u3002<\/p>\n
\u5f53\u4e09\u6781\u7ba1\u5bfc\u901a\u65f6\uff0c\u57fa\u6781-\u53d1\u5c04\u6781\u7535\u963b\u4f1a\u6709\u4e00\u5b9a\u7684\u529f\u8017\u3002<\/p>\n
\u5047\u8bbe\u57fa\u6781\u7535\u538b\u4e3a3.3V\uff0c\u57fa\u6781-\u53d1\u5c04\u6781\u538b\u964d\u4e3a0.7V\uff0c\u4f7f\u752810k<\/em>\u03a9\u7535\u963b\u65f6\u7684\u529f\u8017\u4e3a\uff1a<\/p>\n
\"\"<\/p>\n
\u8fd9\u4e2a\u529f\u8017\u901a\u5e38\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\u3002<\/p>\n
\u5982\u679c\u4f7f\u7528100k<\/em>\u03a9\u7684\u7535\u963b\uff0c\u529f\u8017\u4f1a\u964d\u4f4e\u52300.0676mW\uff0c\u4f46\u6297\u5e72\u6270\u80fd\u529b\u4f1a\u76f8\u5e94\u51cf\u5f31\u3002<\/p>\n
\u54cd\u5e94\u901f\u5ea6\uff1a<\/strong> \u963b\u503c\u8d8a\u5c0f\uff0c\u4e09\u6781\u7ba1\u7684\u5173\u65ad\u901f\u5ea6\u8d8a\u5feb\u3002<\/p>\n
\u5728\u9ad8\u9891\u5f00\u5173\u5e94\u7528\u4e2d\uff08\u6bd4\u5982PWM\u9891\u7387\u5728\u51e0\u5341kHz\u4ee5\u4e0a\uff09\uff0c\u5efa\u8bae\u4f7f\u7528\u8f83\u5c0f\u7684\u963b\u503c\uff0c\u598210k<\/em>\u03a9\u3002<\/p>\n
\u5728\u4f4e\u9891\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u8f83\u5927\u7684\u963b\u503c\uff0c\u598247k<\/em>\u03a9\u6216100k<\/em>\u03a9\u3002<\/p>\n
4.2 \u529f\u7387\u9009\u62e9<\/h3>\n
\u5bf9\u4e8e\u5927\u591a\u6570\u5c0f\u4fe1\u53f7\u5e94\u7528\uff0c1\/4W\uff080.25W<\/em>\uff09\u7684\u7535\u963b\u5c31\u8db3\u591f\u4e86\u3002<\/p>\n
\u4f46\u5728\u67d0\u4e9b\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u6bd4\u5982\u57fa\u6781\u7535\u538b\u8f83\u9ad8\u6216\u8005\u9700\u8981\u5feb\u901f\u6cc4\u653e\u8f83\u5927\u7535\u8377\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u4f7f\u75281\/2W\uff080.5W<\/em>\uff09\u7684\u7535\u963b\u3002<\/p>\n
5. \u5e38\u89c1\u9519\u8bef\u548c\u6ce8\u610f\u4e8b\u9879<\/h2>\n
5.1 \u5fd8\u8bb0\u52a0\u8fd9\u4e2a\u7535\u963b<\/h3>\n
\u8fd9\u662f\u521d\u5b66\u8005\u6700\u5e38\u72af\u7684\u9519\u8bef\u3002<\/p>\n
\u5f88\u591a\u4eba\u5728\u8bbe\u8ba1\u7535\u8def\u65f6\u53ea\u5173\u6ce8\u57fa\u6781\u9650\u6d41\u7535\u963b\uff0c\u800c\u5ffd\u7565\u4e86\u57fa\u6781-\u53d1\u5c04\u6781\u7535\u963b\u3002<\/p>\n
\u8fd9\u4f1a\u5bfc\u81f4\u7535\u8def\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u5de5\u4f5c\u4e0d\u7a33\u5b9a\uff0c\u5c24\u5176\u662f\u5728\u4e0a\u7535\u77ac\u95f4\u6216\u8005\u53d7\u5230\u5e72\u6270\u65f6\u3002<\/p>\n
5.2 \u963b\u503c\u9009\u62e9\u4e0d\u5f53<\/h3>\n
\u6709\u4e9b\u4eba\u4e3a\u4e86”\u4fdd\u9669”\uff0c\u4f1a\u9009\u62e9\u975e\u5e38\u5c0f\u7684\u963b\u503c\uff0c\u6bd4\u59821k<\/em>\u03a9\u3002<\/p>\n
\u8fd9\u867d\u7136\u80fd\u63d0\u4f9b\u5f3a\u5927\u7684\u4e0b\u62c9\u80fd\u529b\uff0c\u4f46\u4f1a\u663e\u8457\u589e\u52a0\u63a7\u5236\u7535\u8def\u7684\u8d1f\u62c5\uff0c\u751a\u81f3\u53ef\u80fd\u5bfc\u81f4GPIO\u5f15\u811a\u65e0\u6cd5\u6b63\u5e38\u9a71\u52a8\u4e09\u6781\u7ba1\u3002<\/p>\n
\u76f8\u53cd\uff0c\u5982\u679c\u963b\u503c\u9009\u62e9\u8fc7\u5927\uff0c\u6bd4\u59821M<\/em>\u03a9\uff0c\u5219\u8d77\u4e0d\u5230\u5e94\u6709\u7684\u4f5c\u7528\u3002<\/p>\n
5.3 \u5728PNP\u4e09\u6781\u7ba1\u4e2d\u7684\u5e94\u7528<\/h3>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5bf9\u4e8ePNP\u578b\u4e09\u6781\u7ba1\uff0c\u60c5\u51b5\u6b63\u597d\u76f8\u53cd\u3002<\/p>\n
\u6211\u4eec\u9700\u8981\u5728\u57fa\u6781\u548c\u53d1\u5c04\u6781\u4e4b\u95f4\u52a0\u4e00\u4e2a\u4e0a\u62c9\u7535\u963b\uff0c\u5c06\u57fa\u6781\u62c9\u5230\u4e0e\u53d1\u5c04\u6781\u76f8\u540c\u7684\u9ad8\u7535\u5e73\uff0c\u786e\u4fdd\u4e09\u6781\u7ba1\u5728\u65e0\u63a7\u5236\u4fe1\u53f7\u65f6\u53ef\u9760\u622a\u6b62\u3002<\/p>\n
\/\/ PNP\u4e09\u6781\u7ba1\u63a7\u5236\u793a\u4f8b\n\/\/ \u786c\u4ef6\u8fde\u63a5\uff1aPA5 -> \u57fa\u6781\u9650\u6d41\u7535\u963b -> \u4e09\u6781\u7ba1\u57fa\u6781\n\/\/          \u4e09\u6781\u7ba1\u57fa\u6781-\u53d1\u5c04\u6781\u4e4b\u95f4\u5e76\u805410k\u03a9\u4e0a\u62c9\u7535\u963b\u5230VCC\n\/\/          \u4e09\u6781\u7ba1\u53d1\u5c04\u6781 -> VCC\n\/\/          \u96c6\u7535\u6781 -> \u8d1f\u8f7d -> GND\n\nvoid PNP_Relay_Control(uint8_t state)\n{\n    if(state)\n    {\n        \/\/ PNP\u4e09\u6781\u7ba1\u9700\u8981\u4f4e\u7535\u5e73\u5bfc\u901a\n        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);\n    }\n    else\n    {\n        \/\/ \u9ad8\u7535\u5e73\u622a\u6b62\n        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);\n    }\n}<\/code><\/pre>\n
6. \u603b\u7ed3<\/h2>\n
\u57fa\u6781-\u53d1\u5c04\u6781\u5e76\u8054\u7535\u963b\u662f\u4e09\u6781\u7ba1\u7535\u8def\u8bbe\u8ba1\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u7ec6\u8282\uff0c\u867d\u7136\u770b\u8d77\u6765\u4e0d\u8d77\u773c\uff0c\u4f46\u5b83\u5bf9\u7535\u8def\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u6709\u7740\u81f3\u5173\u91cd\u8981\u7684\u5f71\u54cd\u3002<\/p>\n
\u8fd9\u4e2a\u7535\u963b\u7684\u4e3b\u8981\u4f5c\u7528\u5305\u62ec\uff1a\u9632\u6b62\u57fa\u6781\u60ac\u7a7a\u5bfc\u81f4\u7684\u8bef\u89e6\u53d1\u3001\u4e3a\u57fa\u6781\u7535\u8377\u63d0\u4f9b\u5feb\u901f\u6cc4\u653e\u901a\u8def\u3001\u589e\u5f3a\u7535\u8def\u7684\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n
\u5728\u5b9e\u9645\u8bbe\u8ba1\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u5177\u4f53\u5e94\u7528\u573a\u666f\u5408\u7406\u9009\u62e9\u7535\u963b\u963b\u503c\uff0c\u4e00\u822c\u63a8\u835010k<\/em>\u03a9\u523047k<\/em>\u03a9\u7684\u8303\u56f4\u3002<\/p>\n
\u5bf9\u4e8e\u9ad8\u9891\u5f00\u5173\u5e94\u7528\uff0c\u53ef\u4ee5\u9009\u62e9\u8f83\u5c0f\u7684\u963b\u503c\uff1b\u5bf9\u4e8e\u4f4e\u529f\u8017\u5e94\u7528\uff0c\u53ef\u4ee5\u9009\u62e9\u8f83\u5927\u7684\u963b\u503c\u3002<\/p>\n
\u4f5c\u4e3a\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\uff0c\u6211\u4eec\u5728\u8bbe\u8ba1\u7535\u8def\u65f6\u4e00\u5b9a\u8981\u6ce8\u610f\u8fd9\u4e9b\u7ec6\u8282\u3002<\/p>\n
\u5f88\u591a\u770b\u4f3c\u7b80\u5355\u7684\u7535\u8def\uff0c\u5f80\u5f80\u5c31\u662f\u56e0\u4e3a\u5ffd\u7565\u4e86\u8fd9\u6837\u4e00\u4e2a\u5c0f\u7535\u963b\uff0c\u5bfc\u81f4\u4ea7\u54c1\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\u51fa\u73b0\u5404\u79cd\u83ab\u540d\u5176\u5999\u7684\u95ee\u9898\u3002<\/p>\n
\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u5927\u5bb6\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528\u8fd9\u4e2a\u77e5\u8bc6\u70b9\uff0c\u8bbe\u8ba1\u51fa\u66f4\u52a0\u7a33\u5b9a\u53ef\u9760\u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u3002<\/p>\n
https:\/\/segmentfault.com\/a\/1190000047584394<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\u3002 \u5728\u5d4c\u5165\u5f0f\u7535\u8def\u8bbe\u8ba1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u770b\u5230\u4e09\u6781\u7ba1\u7684\u57fa\u6781\u548c\u53d1\u5c04\u6781\u4e4b\u95f4\u5e76\u8054\u4e86\u4e00\u4e2a\u7535\u963b\uff0c\u8fd9\u4e2a\u7535\u963b\u901a\u5e38\u88ab\u79f0 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10021220","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10021220"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021220\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10021220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10021220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10021220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}