{"id":10021213,"date":"2026-01-27T11:22:40","date_gmt":"2026-01-27T03:22:40","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021213"},"modified":"2026-01-27T11:22:40","modified_gmt":"2026-01-27T03:22:40","slug":"%e4%b8%89%e6%9e%81%e7%ae%a1%e5%92%8cmos%e7%ae%a1%e7%9a%84%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021213","title":{"rendered":"\u4e09\u6781\u7ba1\u548cMOS\u7ba1\u7684\u533a\u522b"},"content":{"rendered":"

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

\u5728\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d\uff0c\u4e09\u6781\u7ba1\u548cMOS\u7ba1\u662f\u6211\u4eec\u6700\u5e38\u7528\u7684\u4e24\u79cd\u5f00\u5173\u5668\u4ef6\u3002<\/p>\n

\u521a\u5165\u884c\u7684\u65f6\u5019\uff0c\u6211\u5728\u505a\u5355\u7247\u673a\u9879\u76ee\u65f6\u7ecf\u5e38\u7ea0\u7ed3\uff1a\u8fd9\u4e2a\u5730\u65b9\u5230\u5e95\u8be5\u7528\u4e09\u6781\u7ba1\u8fd8\u662fMOS\u7ba1\uff1f\u540e\u6765\u968f\u7740\u9879\u76ee\u7ecf\u9a8c\u7684\u79ef\u7d2f\uff0c\u6211\u9010\u6e10\u7406\u89e3\u4e86\u5b83\u4eec\u5404\u81ea\u7684\u7279\u70b9\u548c\u9002\u7528\u573a\u666f\u3002<\/p>\n

\u4eca\u5929\u5c31\u548c\u5927\u5bb6\u8be6\u7ec6\u804a\u804a\u8fd9\u4e24\u79cd\u5668\u4ef6\u7684\u533a\u522b\u3002<\/p>\n

1. \u57fa\u672c\u5de5\u4f5c\u539f\u7406\u7684\u5dee\u5f02<\/h2>\n

1.1 \u4e09\u6781\u7ba1\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n

\u4e09\u6781\u7ba1\uff08BJT\uff0cBipolar Junction Transistor\uff09\u662f\u4e00\u79cd\u7535\u6d41\u63a7\u5236\u578b\u5668\u4ef6\u3002<\/p>\n

\u5b83\u6709\u4e09\u4e2a\u6781\uff1a\u57fa\u6781\uff08B\uff09\u3001\u96c6\u7535\u6781\uff08C\uff09\u548c\u53d1\u5c04\u6781\uff08E\uff09\u3002<\/p>\n

\u4e09\u6781\u7ba1\u7684\u5bfc\u901a\u9700\u8981\u57fa\u6781\u7535\u6d41IB<\/em>\uff0c\u96c6\u7535\u6781\u7535\u6d41IC<\/em>\u4e0e\u57fa\u6781\u7535\u6d41\u7684\u5173\u7cfb\u53ef\u4ee5\u8868\u793a\u4e3a\uff1a<\/p>\n

\"\"<\/p>\n

\u5176\u4e2d\u03b2<\/em>\u662f\u4e09\u6781\u7ba1\u7684\u653e\u5927\u500d\u6570\uff0c\u4e00\u822c\u5728\u51e0\u5341\u5230\u51e0\u767e\u4e4b\u95f4\u3002\u8fd9\u610f\u5473\u7740\u8981\u8ba9\u4e09\u6781\u7ba1\u5de5\u4f5c\uff0c\u57fa\u6781\u5fc5\u987b\u6301\u7eed\u63d0\u4f9b\u4e00\u5b9a\u7684\u7535\u6d41\u3002<\/p>\n

\u6bd4\u5982\u6211\u4e4b\u524d\u505a\u4e00\u4e2aLED\u9a71\u52a8\u7535\u8def\uff0c\u4f7f\u7528\u7684\u662fS8050\u4e09\u6781\u7ba1\uff0c\u03b2<\/em>\u7ea6\u4e3a100\uff0c\u8981\u9a71\u52a8100mA\u7684LED\uff0c\u57fa\u6781\u5c31\u9700\u8981\u63d0\u4f9b\u81f3\u5c111mA\u7684\u7535\u6d41\u3002<\/p>\n

1.2 MOS\u7ba1\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n

MOS\u7ba1\uff08MOSFET\uff0cMetal-Oxide-Semiconductor Field-Effect Transistor\uff09\u662f\u4e00\u79cd\u7535\u538b\u63a7\u5236\u578b\u5668\u4ef6\u3002<\/p>\n

\u5b83\u6709\u4e09\u4e2a\u6781\uff1a\u6805\u6781\uff08G\uff09\u3001\u6f0f\u6781\uff08D\uff09\u548c\u6e90\u6781\uff08S\uff09\u3002<\/p>\n

MOS\u7ba1\u7684\u5bfc\u901a\u4e3b\u8981\u4f9d\u9760\u6805\u6781\u548c\u6e90\u6781\u4e4b\u95f4\u7684\u7535\u538bVGS<\/em>\uff0c\u5f53VGS<\/em>\u8d85\u8fc7\u9608\u503c\u7535\u538bVth<\/em>\u65f6\uff0cMOS\u7ba1\u5c31\u4f1a\u5bfc\u901a\u3002<\/p>\n

\u5173\u952e\u7684\u662f\uff0cMOS\u7ba1\u7684\u6805\u6781\u51e0\u4e4e\u4e0d\u9700\u8981\u7535\u6d41\uff08\u7406\u8bba\u4e0a\u53ea\u6709\u5145\u653e\u7535\u65f6\u7684\u77ac\u6001\u7535\u6d41\uff09\uff0c\u8fd9\u662f\u5b83\u548c\u4e09\u6781\u7ba1\u6700\u672c\u8d28\u7684\u533a\u522b\u3002<\/p>\n

\u6211\u5728\u505a\u4e00\u4e2a\u7535\u673a\u9a71\u52a8\u9879\u76ee\u65f6\uff0c\u4f7f\u7528IRF540N\u8fd9\u6b3eN\u6c9f\u9053MOS\u7ba1\uff0c\u6805\u6781\u8f93\u5165\u963b\u6297\u9ad8\u8fbe\u51e0\u5341\u5146\u6b27\uff0cSTM32\u7684GPIO\u76f4\u63a5\u9a71\u52a8\u5b8c\u5168\u6ca1\u95ee\u9898\u3002<\/p>\n

2. \u9a71\u52a8\u80fd\u529b\u548c\u529f\u8017\u5bf9\u6bd4<\/h2>\n

2.1 \u9a71\u52a8\u7535\u8def\u7684\u590d\u6742\u5ea6<\/h3>\n

\u4e09\u6781\u7ba1\u7531\u4e8e\u662f\u7535\u6d41\u9a71\u52a8\uff0c\u5728\u5927\u529f\u7387\u5e94\u7528\u4e2d\u9700\u8981\u8003\u8651\u57fa\u6781\u9a71\u52a8\u7535\u6d41\u7684\u95ee\u9898\u3002<\/p>\n

\u4e3e\u4e2a\u5b9e\u9645\u4f8b\u5b50\uff0c\u5982\u679c\u8981\u7528\u4e09\u6781\u7ba1\u9a71\u52a8\u4e00\u4e2a5A\u7684\u8d1f\u8f7d\uff0c\u5047\u8bbe\u03b2<\/em>=50\uff0c\u90a3\u4e48\u57fa\u6781\u9700\u8981\u63d0\u4f9b100mA\u7684\u7535\u6d41\u3002<\/p>\n

\u800cSTM32\u7684GPIO\u6700\u5927\u8f93\u51fa\u7535\u6d41\u4e00\u822c\u53ea\u670925mA\uff0c\u8fd9\u65f6\u5019\u5c31\u9700\u8981\u589e\u52a0\u989d\u5916\u7684\u9a71\u52a8\u7535\u8def\uff0c\u6bd4\u5982\u518d\u52a0\u4e00\u7ea7\u4e09\u6781\u7ba1\u653e\u5927\u3002<\/p>\n

\u76f8\u6bd4\u4e4b\u4e0b\uff0cMOS\u7ba1\u5c31\u7b80\u5355\u591a\u4e86\u3002<\/p>\n

\u7531\u4e8e\u6805\u6781\u51e0\u4e4e\u4e0d\u9700\u8981\u7535\u6d41\uff0c\u5355\u7247\u673a\u7684GPIO\u53ef\u4ee5\u76f4\u63a5\u9a71\u52a8\u3002<\/p>\n

\u6211\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u7ecf\u5e38\u7528STM32\u7684GPIO\u76f4\u63a5\u9a71\u52a8MOS\u7ba1\u6765\u63a7\u5236\u7ee7\u7535\u5668\u3001\u7535\u673a\u7b49\u8d1f\u8f7d\uff0c\u7535\u8def\u975e\u5e38\u7b80\u6d01\u3002<\/p>\n

\/\/ STM32 HAL\u5e93\u9a71\u52a8MOS\u7ba1\u7684\u793a\u4f8b\u4ee3\u7801\nvoid MOS_Control(uint8_t state)\n{\n    if(state == 1)\n    {\n        \/\/ \u5bfc\u901aMOS\u7ba1\uff0cGPIO\u8f93\u51fa\u9ad8\u7535\u5e73\n        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);\n    }\n    else\n    {\n        \/\/ \u5173\u65adMOS\u7ba1\uff0cGPIO\u8f93\u51fa\u4f4e\u7535\u5e73\n        HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);\n    }\n}<\/code><\/pre>\n
2.2 \u9759\u6001\u529f\u8017\u5dee\u5f02<\/h3>\n
\u4e09\u6781\u7ba1\u5728\u5bfc\u901a\u72b6\u6001\u4e0b\uff0c\u57fa\u6781\u9700\u8981\u6301\u7eed\u63d0\u4f9b\u7535\u6d41\uff0c\u8fd9\u4f1a\u4ea7\u751f\u4e00\u5b9a\u7684\u9759\u6001\u529f\u8017\u3002<\/p>\n
\u4ee5\u524d\u9762\u63d0\u5230\u7684\u9a71\u52a8100mA\u8d1f\u8f7d\u4e3a\u4f8b\uff0c\u5982\u679c\u57fa\u6781\u7535\u538b\u4e3a0.7V\uff0c\u57fa\u6781\u7535\u6d41\u4e3a1mA\uff0c\u90a3\u4e48\u57fa\u6781\u529f\u8017\u5c31\u662f\"\"\u3002<\/p>\n
\u867d\u7136\u770b\u8d77\u6765\u4e0d\u5927\uff0c\u4f46\u5728\u7535\u6c60\u4f9b\u7535\u7684\u4f4e\u529f\u8017\u5e94\u7528\u4e2d\uff0c\u8fd9\u4e2a\u529f\u8017\u662f\u4e0d\u80fd\u5ffd\u89c6\u7684\u3002<\/p>\n
MOS\u7ba1\u7684\u6805\u6781\u5728\u7a33\u6001\u65f6\u51e0\u4e4e\u4e0d\u6d88\u8017\u7535\u6d41\uff0c\u9759\u6001\u529f\u8017\u4e3b\u8981\u6765\u81ea\u4e8e\u5bfc\u901a\u7535\u963bRDS<\/em>(on<\/em>)\u4ea7\u751f\u7684\u635f\u8017\u3002<\/p>\n
\u5bf9\u4e8e\u4f4eRDS<\/em>(on<\/em>)\u7684MOS\u7ba1\uff0c\u8fd9\u4e2a\u635f\u8017\u53ef\u4ee5\u505a\u5230\u975e\u5e38\u5c0f\u3002<\/p>\n
\u6211\u505a\u8fc7\u4e00\u4e2a\u592a\u9633\u80fd\u4f9b\u7535\u7684\u9879\u76ee\uff0c\u4f7f\u7528MOS\u7ba1\u4f5c\u4e3a\u5f00\u5173\u5668\u4ef6\uff0c\u5f85\u673a\u529f\u8017\u53ef\u4ee5\u63a7\u5236\u5728\u5fae\u5b89\u7ea7\u522b\u3002<\/p>\n
3. \u5f00\u5173\u7279\u6027\u7684\u5bf9\u6bd4<\/h2>\n
3.1 \u5f00\u5173\u901f\u5ea6<\/h3>\n
MOS\u7ba1\u7684\u5f00\u5173\u901f\u5ea6\u901a\u5e38\u6bd4\u4e09\u6781\u7ba1\u5feb\u5f88\u591a\u3002<\/p>\n
\u8fd9\u662f\u56e0\u4e3a\u4e09\u6781\u7ba1\u7684\u5f00\u5173\u8fc7\u7a0b\u6d89\u53ca\u5230\u5c11\u6570\u8f7d\u6d41\u5b50\u7684\u5b58\u50a8\u548c\u590d\u5408\uff0c\u9700\u8981\u4e00\u5b9a\u7684\u65f6\u95f4\u3002<\/p>\n
\u800cMOS\u7ba1\u662f\u591a\u6570\u8f7d\u6d41\u5b50\u5668\u4ef6\uff0c\u5f00\u5173\u8fc7\u7a0b\u4e3b\u8981\u662f\u6805\u6781\u7535\u5bb9\u7684\u5145\u653e\u7535\uff0c\u901f\u5ea6\u66f4\u5feb\u3002<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4e09\u6781\u7ba1\u7684\u5f00\u5173\u9891\u7387\u4e00\u822c\u5728\u51e0\u5341kHz\u5230\u51e0\u767ekHz\uff0c\u800cMOS\u7ba1\u53ef\u4ee5\u8f7b\u677e\u8fbe\u5230\u51e0MHz\u751a\u81f3\u51e0\u5341MHz\u3002<\/p>\n
\u6211\u4e4b\u524d\u505a\u8fc7\u4e00\u4e2aPWM\u8c03\u5149\u7535\u8def\uff0c\u4f7f\u7528\u4e09\u6781\u7ba1\u65f6\u53d1\u73b0\u9891\u7387\u8d85\u8fc7100kHz\u5c31\u4f1a\u53d1\u70ed\u4e25\u91cd\uff0c\u6362\u6210MOS\u7ba1\u540e\uff0c\u9891\u7387\u63d0\u5347\u5230500kHz\u4e5f\u6ca1\u95ee\u9898\u3002<\/p>\n
\/\/ \u4f7f\u7528\u5b9a\u65f6\u5668\u4ea7\u751fPWM\u4fe1\u53f7\u9a71\u52a8MOS\u7ba1\nvoid PWM_Init(void)\n{\n    TIM_HandleTypeDef htim2;\n    TIM_OC_InitTypeDef sConfigOC = {0};\n    \n    htim2.Instance = TIM2;\n    htim2.Init.Prescaler = 0;\n    htim2.Init.CounterMode = TIM_COUNTERMODE_UP;\n    htim2.Init.Period = 1000-1;  \/\/ PWM\u5468\u671f\n    htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;\n    HAL_TIM_PWM_Init(&htim2);\n    \n    sConfigOC.OCMode = TIM_OCMODE_PWM1;\n    sConfigOC.Pulse = 500;  \/\/ \u5360\u7a7a\u6bd450%\n    sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;\n    HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1);\n    HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1);\n}<\/code><\/pre>\n
3.2 \u9971\u548c\u538b\u964d<\/h3>\n
\u4e09\u6781\u7ba1\u5728\u9971\u548c\u5bfc\u901a\u65f6\uff0c\u96c6\u7535\u6781\u548c\u53d1\u5c04\u6781\u4e4b\u95f4\u6709\u4e00\u4e2a\u9971\u548c\u538b\u964dVCE<\/em>(sat<\/em>)\uff0c\u4e00\u822c\u57280.2V\u52300.5V\u4e4b\u95f4\u3002<\/p>\n
\u8fd9\u4e2a\u538b\u964d\u4f1a\u968f\u7740\u7535\u6d41\u589e\u5927\u800c\u589e\u5927\uff0c\u5728\u5927\u7535\u6d41\u5e94\u7528\u4e2d\u4f1a\u4ea7\u751f\u8f83\u5927\u7684\u529f\u8017\u3002<\/p>\n
MOS\u7ba1\u5bfc\u901a\u65f6\u7684\u538b\u964d\u53d6\u51b3\u4e8e\u5bfc\u901a\u7535\u963bRDS<\/em>(on<\/em>)\u548c\u6d41\u8fc7\u7684\u7535\u6d41\uff0c\u538b\u964d\u4e3a\"\"\u3002<\/p>\n
\u5bf9\u4e8e\u4f18\u8d28\u7684MOS\u7ba1\uff0cRDS<\/em>(on<\/em>)\u53ef\u4ee5\u505a\u5230\u51e0\u6beb\u6b27\u751a\u81f3\u66f4\u5c0f\uff0c\u5bfc\u901a\u538b\u964d\u53ef\u4ee5\u975e\u5e38\u4f4e\u3002<\/p>\n
\u6bd4\u5982\u6211\u7528\u8fc7\u7684IRLZ44N\uff0cRDS<\/em>(on<\/em>)\u53ea\u670922\u6beb\u6b27\uff0c\u6d41\u8fc75A\u7535\u6d41\u65f6\u538b\u964d\u53ea\u6709110mV\uff0c\u8fdc\u5c0f\u4e8e\u4e09\u6781\u7ba1\u3002<\/p>\n
4. \u6e29\u5ea6\u7279\u6027\u548c\u53ef\u9760\u6027<\/h2>\n
4.1 \u6e29\u5ea6\u7cfb\u6570<\/h3>\n
\u4e09\u6781\u7ba1\u5177\u6709\u8d1f\u6e29\u5ea6\u7cfb\u6570\u7279\u6027\uff0c\u4e5f\u5c31\u662f\u8bf4\u6e29\u5ea6\u5347\u9ad8\u65f6\uff0c\u03b2<\/em>\u503c\u4f1a\u589e\u5927\uff0c\u5bfc\u901a\u7535\u963b\u4f1a\u51cf\u5c0f\u3002<\/p>\n
\u8fd9\u5728\u5e76\u8054\u4f7f\u7528\u65f6\u5bb9\u6613\u51fa\u73b0\u7535\u6d41\u4e0d\u5747\u8861\u7684\u95ee\u9898\uff0c\u67d0\u4e2a\u7ba1\u5b50\u6e29\u5ea6\u9ad8\u4e86\uff0c\u7535\u6d41\u5c31\u4f1a\u66f4\u5927\uff0c\u8fdb\u4e00\u6b65\u5347\u6e29\uff0c\u5f62\u6210\u6076\u6027\u5faa\u73af\uff0c\u6700\u7ec8\u53ef\u80fd\u5bfc\u81f4\u70ed\u51fb\u7a7f\u3002<\/p>\n
MOS\u7ba1\u5219\u5177\u6709\u6b63\u6e29\u5ea6\u7cfb\u6570\u7279\u6027\uff0c\u6e29\u5ea6\u5347\u9ad8\u65f6RDS<\/em>(on<\/em>)\u4f1a\u589e\u5927\u3002<\/p>\n
\u8fd9\u4e2a\u7279\u6027\u4f7f\u5f97MOS\u7ba1\u5728\u5e76\u8054\u4f7f\u7528\u65f6\u5177\u6709\u5929\u7136\u7684\u7535\u6d41\u5747\u8861\u80fd\u529b\uff0c\u67d0\u4e2a\u7ba1\u5b50\u6e29\u5ea6\u9ad8\u4e86\uff0c\u7535\u963b\u589e\u5927\uff0c\u7535\u6d41\u53cd\u800c\u4f1a\u51cf\u5c0f\uff0c\u5177\u6709\u81ea\u6211\u4fdd\u62a4\u7684\u4f5c\u7528\u3002<\/p>\n
\u6211\u5728\u505a\u5927\u529f\u7387\u7535\u6e90\u65f6\uff0c\u7ecf\u5e38\u9700\u8981\u5e76\u8054\u591a\u4e2aMOS\u7ba1\uff0c\u8fd9\u4e2a\u7279\u6027\u8ba9\u7535\u8def\u8bbe\u8ba1\u7b80\u5355\u4e86\u5f88\u591a\u3002<\/p>\n
4.2 \u6297\u9759\u7535\u80fd\u529b<\/h3>\n
\u4e09\u6781\u7ba1\u7684\u6297\u9759\u7535\u80fd\u529b\u76f8\u5bf9\u8f83\u5f3a\uff0c\u56e0\u4e3a\u5b83\u7684PN\u7ed3\u53ef\u4ee5\u627f\u53d7\u4e00\u5b9a\u7684\u53cd\u5411\u7535\u538b\u3002<\/p>\n
\u800cMOS\u7ba1\u7684\u6805\u6781\u6c27\u5316\u5c42\u975e\u5e38\u8584\uff0c\u53ea\u6709\u51e0\u5341\u5230\u51e0\u767e\u7eb3\u7c73\uff0c\u5f88\u5bb9\u6613\u88ab\u9759\u7535\u51fb\u7a7f\u3002<\/p>\n
\u6211\u521a\u5f00\u59cb\u505a\u9879\u76ee\u65f6\uff0c\u5c31\u56e0\u4e3a\u6ca1\u6709\u505a\u597d\u9632\u9759\u7535\u63aa\u65bd\uff0c\u635f\u574f\u4e86\u597d\u51e0\u4e2aMOS\u7ba1\u3002<\/p>\n
\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0cMOS\u7ba1\u7684\u6805\u6781\u4e00\u5b9a\u8981\u505a\u597d\u4fdd\u62a4\uff0c\u53ef\u4ee5\u5728\u6805\u6781\u548c\u6e90\u6781\u4e4b\u95f4\u5e76\u8054\u4e00\u4e2a\u7a33\u538b\u7ba1\u6216\u8005\u7535\u963b\u3002<\/p>\n
\u540c\u65f6\u5728\u710a\u63a5\u548c\u8c03\u8bd5\u65f6\u8981\u505a\u597d\u9632\u9759\u7535\u63aa\u65bd\uff0c\u4f69\u6234\u9632\u9759\u7535\u624b\u73af\u3002<\/p>\n
\/\/ MOS\u7ba1\u9a71\u52a8\u7535\u8def\u521d\u59cb\u5316\uff0c\u5305\u542b\u4fdd\u62a4\u63aa\u65bd\nvoid MOS_Driver_Init(void)\n{\n    GPIO_InitTypeDef GPIO_InitStruct = {0};\n    \n    __HAL_RCC_GPIOA_CLK_ENABLE();\n    \n    \/\/ \u914d\u7f6eGPIO\u4e3a\u63a8\u633d\u8f93\u51fa\uff0c\u521d\u59cb\u72b6\u6001\u4e3a\u4f4e\u7535\u5e73\n    GPIO_InitStruct.Pin = GPIO_PIN_5;\n    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;\n    GPIO_InitStruct.Pull = GPIO_PULLDOWN;  \/\/ \u4e0b\u62c9\u4fdd\u62a4\n    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;\n    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);\n    \n    \/\/ \u521d\u59cb\u5316\u4e3a\u5173\u65ad\u72b6\u6001\n    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);\n}<\/code><\/pre>\n
5. \u5b9e\u9645\u5e94\u7528\u573a\u666f\u9009\u62e9<\/h2>\n
5.1 \u4ec0\u4e48\u65f6\u5019\u9009\u62e9\u4e09\u6781\u7ba1<\/h3>\n
\u4e09\u6781\u7ba1\u9002\u5408\u4ee5\u4e0b\u573a\u666f\uff1a\u6210\u672c\u654f\u611f\u7684\u5c0f\u529f\u7387\u5e94\u7528\uff0c\u6bd4\u5982LED\u6307\u793a\u706f\u9a71\u52a8\u3001\u5c0f\u4fe1\u53f7\u653e\u5927\u7b49\uff1b\u9700\u8981\u7ebf\u6027\u653e\u5927\u7684\u573a\u5408\uff0c\u4e09\u6781\u7ba1\u7684\u7ebf\u6027\u533a\u7279\u6027\u6bd4MOS\u7ba1\u597d\uff1b\u5bf9\u5f00\u5173\u901f\u5ea6\u8981\u6c42\u4e0d\u9ad8\u7684\u5e94\u7528\uff1b\u5c0f\u7535\u6d41\u5f00\u5173\u5e94\u7528\uff0c\u6bd4\u5982\u51e0\u5341\u6beb\u5b89\u5230\u51e0\u767e\u6beb\u5b89\u7684\u8d1f\u8f7d\u3002<\/p>\n
\u6211\u5728\u505a\u4e00\u4e9b\u7b80\u5355\u7684\u6307\u793a\u706f\u7535\u8def\u65f6\uff0c\u901a\u5e38\u4f1a\u9009\u62e9\u4e09\u6781\u7ba1\uff0c\u56e0\u4e3a\u4fbf\u5b9c\u800c\u4e14\u591f\u7528\u3002<\/p>\n
\u6bd4\u5982\u7528S8050\u9a71\u52a8\u51e0\u4e2aLED\uff0c\u6210\u672c\u53ea\u8981\u51e0\u5206\u94b1\uff0c\u7535\u8def\u4e5f\u5f88\u7b80\u5355\u3002<\/p>\n
5.2 \u4ec0\u4e48\u65f6\u5019\u9009\u62e9MOS\u7ba1<\/h3>\n
MOS\u7ba1\u9002\u5408\u4ee5\u4e0b\u573a\u666f\uff1a\u5927\u529f\u7387\u5f00\u5173\u5e94\u7528\uff0c\u6bd4\u5982\u7535\u673a\u9a71\u52a8\u3001\u7535\u6e90\u5f00\u5173\u7b49\uff1b\u9ad8\u9891PWM\u5e94\u7528\uff0c\u6bd4\u5982\u5f00\u5173\u7535\u6e90\u3001\u7535\u673a\u8c03\u901f\u7b49\uff1b\u4f4e\u529f\u8017\u5e94\u7528\uff0c\u7279\u522b\u662f\u7535\u6c60\u4f9b\u7535\u7684\u8bbe\u5907\uff1b\u9700\u8981\u5e76\u8054\u4f7f\u7528\u7684\u573a\u5408\uff1b\u5355\u7247\u673aGPIO\u76f4\u63a5\u9a71\u52a8\u7684\u573a\u5408\u3002<\/p>\n
\u5728\u6211\u7684\u5927\u90e8\u5206\u5d4c\u5165\u5f0f\u9879\u76ee\u4e2d\uff0c\u53ea\u8981\u662f\u529f\u7387\u7a0d\u5fae\u5927\u4e00\u70b9\u7684\u8d1f\u8f7d\uff0c\u6211\u90fd\u4f1a\u4f18\u5148\u9009\u62e9MOS\u7ba1\u3002<\/p>\n
\u6bd4\u5982\u9a71\u52a8\u7ee7\u7535\u5668\u3001\u63a7\u523612V\u98ce\u6247\u3001\u7535\u78c1\u9600\u7b49\uff0cMOS\u7ba1\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u90fd\u66f4\u597d\u3002<\/p>\n
5.3 \u6df7\u5408\u4f7f\u7528\u7684\u573a\u666f<\/h3>\n
\u6709\u65f6\u5019\u6211\u4eec\u4f1a\u628a\u4e24\u8005\u7ed3\u5408\u8d77\u6765\u4f7f\u7528\u3002<\/p>\n
\u6bd4\u5982\u5728\u9700\u8981\u9a71\u52a8\u5927\u529f\u7387MOS\u7ba1\uff0c\u4f46\u5355\u7247\u673aGPIO\u9a71\u52a8\u80fd\u529b\u4e0d\u8db3\u65f6\uff0c\u53ef\u4ee5\u7528\u4e00\u4e2a\u5c0f\u4e09\u6781\u7ba1\u6765\u9a71\u52a8MOS\u7ba1\u7684\u6805\u6781\u3002<\/p>\n
\u8fd9\u79cd\u7535\u8def\u5728\u5927\u529f\u7387\u5e94\u7528\u4e2d\u5f88\u5e38\u89c1\u3002<\/p>\n
\/\/ \u4e09\u6781\u7ba1\u9a71\u52a8MOS\u7ba1\u7684\u7535\u8def\u63a7\u5236\u4ee3\u7801\nvoid High_Power_Load_Control(uint8_t state)\n{\n    if(state == 1)\n    {\n        \/\/ GPIO\u8f93\u51fa\u9ad8\u7535\u5e73\uff0c\u9a71\u52a8\u4e09\u6781\u7ba1\u5bfc\u901a\n        \/\/ \u4e09\u6781\u7ba1\u5bfc\u901a\u540e\u62c9\u4f4eMOS\u7ba1\u6805\u6781\uff0c\u4f7fP\u6c9f\u9053MOS\u7ba1\u5bfc\u901a\n        HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0, GPIO_PIN_SET);\n    }\n    else\n    {\n        \/\/ GPIO\u8f93\u51fa\u4f4e\u7535\u5e73\uff0c\u4e09\u6781\u7ba1\u622a\u6b62\n        \/\/ MOS\u7ba1\u6805\u6781\u88ab\u4e0a\u62c9\u7535\u963b\u62c9\u9ad8\uff0cP\u6c9f\u9053MOS\u7ba1\u622a\u6b62\n        HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0, GPIO_PIN_RESET);\n    }\n}<\/code><\/pre>\n
6. \u9009\u578b\u6ce8\u610f\u4e8b\u9879<\/h2>\n
6.1 \u53c2\u6570\u9009\u62e9<\/h3>\n
\u9009\u62e9\u4e09\u6781\u7ba1\u65f6\uff0c\u4e3b\u8981\u5173\u6ce8\u4ee5\u4e0b\u53c2\u6570\uff1a\u6700\u5927\u96c6\u7535\u6781\u7535\u6d41IC<\/em>(max<\/em>)\u3001\u6700\u5927\u96c6\u7535\u6781-\u53d1\u5c04\u6781\u7535\u538bVCE<\/em>(max<\/em>)\u3001\u653e\u5927\u500d\u6570\u03b2<\/em>\u3001\u9971\u548c\u538b\u964dVCE<\/em>(sat<\/em>)\u3002\u4e00\u822c\u8981\u7559\u67092\u52303\u500d\u7684\u4f59\u91cf\u3002<\/p>\n
\u9009\u62e9MOS\u7ba1\u65f6\uff0c\u4e3b\u8981\u5173\u6ce8\uff1a\u6700\u5927\u6f0f\u6781\u7535\u6d41ID<\/em>(max<\/em>)\u3001\u6700\u5927\u6f0f\u6e90\u7535\u538bVDS<\/em>(max<\/em>)\u3001\u5bfc\u901a\u7535\u963bRDS<\/em>(on<\/em>)\u3001\u6805\u6781\u9608\u503c\u7535\u538bVth<\/em>\u3001\u6805\u6781\u7535\u5bb9\u7b49\u53c2\u6570\u3002\u7279\u522b\u8981\u6ce8\u610fVth\u8981\u4f4e\u4e8e\u9a71\u52a8\u7535\u538b\uff0c\u5426\u5219MOS\u7ba1\u65e0\u6cd5\u5b8c\u5168\u5bfc\u901a\u3002<\/p>\n
6.2 \u6563\u70ed\u8bbe\u8ba1<\/h3>\n
\u65e0\u8bba\u662f\u4e09\u6781\u7ba1\u8fd8\u662fMOS\u7ba1\uff0c\u5728\u5927\u529f\u7387\u5e94\u7528\u4e2d\u90fd\u8981\u8003\u8651\u6563\u70ed\u95ee\u9898\u3002\u529f\u8017\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\uff1a<\/p>\n
\u5bf9\u4e8e\u4e09\u6781\u7ba1\uff1a\"\"<\/p>\n
\u5bf9\u4e8eMOS\u7ba1\uff1a\"\"<\/p>\n
\u6839\u636e\u529f\u8017\u548c\u5668\u4ef6\u7684\u70ed\u963b\uff0c\u53ef\u4ee5\u8ba1\u7b97\u51fa\u6e29\u5347\u3002<\/p>\n
\u5982\u679c\u6e29\u5347\u8fc7\u9ad8\uff0c\u5c31\u9700\u8981\u589e\u52a0\u6563\u70ed\u7247\u3002<\/p>\n
\u901a\u8fc7\u8fd9\u4e9b\u5e74\u7684\u9879\u76ee\u7ecf\u9a8c\uff0c\u6211\u6df1\u523b\u4f53\u4f1a\u5230\uff0c\u9009\u62e9\u5408\u9002\u7684\u5668\u4ef6\u5bf9\u4e8e\u7535\u8def\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u81f3\u5173\u91cd\u8981\u3002<\/p>\n
\u4e09\u6781\u7ba1\u548cMOS\u7ba1\u5404\u6709\u4f18\u52bf\uff0c\u6ca1\u6709\u7edd\u5bf9\u7684\u597d\u574f\uff0c\u5173\u952e\u662f\u8981\u6839\u636e\u5b9e\u9645\u5e94\u7528\u573a\u666f\u6765\u9009\u62e9\u3002<\/p>\n
\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u5927\u5bb6\u66f4\u597d\u5730\u7406\u89e3\u8fd9\u4e24\u79cd\u5668\u4ef6\u7684\u533a\u522b\uff0c\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u505a\u51fa\u6b63\u786e\u7684\u9009\u62e9\u3002<\/p>\n
https:\/\/segmentfault.com\/a\/1190000047574253<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\u3002 \u5728\u5d4c\u5165\u5f0f\u5f00\u53d1\u4e2d\uff0c\u4e09\u6781\u7ba1\u548cMOS\u7ba1\u662f\u6211\u4eec\u6700\u5e38\u7528\u7684\u4e24\u79cd\u5f00\u5173\u5668\u4ef6\u3002 \u521a\u5165\u884c\u7684\u65f6\u5019\uff0c\u6211\u5728\u505a\u5355\u7247\u673a\u9879 […]<\/p>\n","protected":false},"author":2,"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-10021213","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\/10021213","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10021213"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021213\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10021213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10021213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10021213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}