{"id":10021199,"date":"2026-01-20T10:19:05","date_gmt":"2026-01-20T02:19:05","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021199"},"modified":"2026-01-20T10:19:05","modified_gmt":"2026-01-20T02:19:05","slug":"%e4%bb%80%e4%b9%88%e6%98%afmos%e7%ae%a1%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021199","title":{"rendered":"\u4ec0\u4e48\u662fMOS\u7ba1\uff1f"},"content":{"rendered":"<h2>\u4ec0\u4e48\u662f MOS \u7ba1\uff1f<\/h2>\n<p>\u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\u3002<\/p>\n<p>\u6700\u8fd1\u5728\u505a\u4e00\u4e2a\u7535\u6e90\u7ba1\u7406\u7684\u9879\u76ee\uff0c\u9700\u8981\u7528\u5230 MOS \u7ba1\u6765\u63a7\u5236\u5927\u7535\u6d41\u7684\u5f00\u5173\u3002<\/p>\n<p>\u5f88\u591a\u521a\u5165\u95e8\u7684\u670b\u53cb\u53ef\u80fd\u5bf9 MOS \u7ba1\u4e0d\u592a\u4e86\u89e3\uff0c\u4eca\u5929\u6211\u5c31\u6765\u8be6\u7ec6\u804a\u804a\u8fd9\u4e2a\u5728\u7535\u5b50\u7535\u8def\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u5143\u5668\u4ef6\u3002<\/p>\n<h3>1. MOS \u7ba1\u7684\u57fa\u672c\u6982\u5ff5<\/h3>\n<h4>1.1 MOS \u7ba1\u7684\u5168\u79f0\u4e0e\u7ed3\u6784<\/h4>\n<p>MOS \u7ba1\u7684\u5168\u79f0\u662f Metal-Oxide-Semiconductor Field-Effect Transistor\uff0c\u4e2d\u6587\u53eb\u505a\u91d1\u5c5e-\u6c27\u5316\u7269-\u534a\u5bfc\u4f53\u573a\u6548\u5e94\u6676\u4f53\u7ba1\uff0c\u7b80\u79f0 MOSFET \u6216\u8005 MOS \u7ba1\u3002<\/p>\n<p>\u4ece\u540d\u5b57\u5c31\u80fd\u770b\u51fa\u6765\uff0c\u5b83\u4e3b\u8981\u7531\u4e09\u79cd\u6750\u6599\u6784\u6210\uff1a\u91d1\u5c5e\u6805\u6781\u3001\u6c27\u5316\u7269\u7edd\u7f18\u5c42\u548c\u534a\u5bfc\u4f53\u886c\u5e95\u3002<\/p>\n<p>MOS \u7ba1\u6709\u4e09\u4e2a\u5f15\u811a\uff0c\u5206\u522b\u662f\u6805\u6781\uff08Gate\uff0c\u7b80\u79f0 G\uff09\u3001\u6f0f\u6781\uff08Drain\uff0c\u7b80\u79f0 D\uff09\u548c\u6e90\u6781\uff08Source\uff0c\u7b80\u79f0 S\uff09\u3002<\/p>\n<p>\u8fd9\u4e09\u4e2a\u5f15\u811a\u7684\u4f5c\u7528\u5404\u4e0d\u76f8\u540c\uff1a\u6805\u6781\u7528\u6765\u63a7\u5236\u5f00\u5173\uff0c\u6f0f\u6781\u548c\u6e90\u6781\u4e4b\u95f4\u5f62\u6210\u5bfc\u7535\u901a\u9053\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u5728\u6805\u6781\u65bd\u52a0\u4e00\u5b9a\u7684\u7535\u538b\u65f6\uff0c\u5c31\u53ef\u4ee5\u63a7\u5236\u6f0f\u6781\u548c\u6e90\u6781\u4e4b\u95f4\u662f\u5426\u5bfc\u901a\uff0c\u8fd9\u5c31\u662f MOS \u7ba1\u6700\u6838\u5fc3\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<h4>1.2 MOS \u7ba1\u7684\u5206\u7c7b<\/h4>\n<p>MOS \u7ba1\u4e3b\u8981\u5206\u4e3a\u4e24\u5927\u7c7b\uff1aN \u6c9f\u9053 MOS \u7ba1\uff08NMOS\uff09\u548c P \u6c9f\u9053 MOS \u7ba1\uff08PMOS\uff09\u3002<\/p>\n<p>\u8fd9\u4e24\u79cd\u7ba1\u5b50\u7684\u5de5\u4f5c\u539f\u7406\u7c7b\u4f3c\uff0c\u4f46\u662f\u5bfc\u901a\u6761\u4ef6\u76f8\u53cd\u3002<\/p>\n<p>\u5bf9\u4e8e NMOS \u7ba1\u6765\u8bf4\uff0c\u5f53\u6805\u6781\u7535\u538b\u9ad8\u4e8e\u6e90\u6781\u7535\u538b\u4e00\u5b9a\u7a0b\u5ea6\uff08\u8d85\u8fc7\u9608\u503c\u7535\u538b\uff09\u65f6\uff0c\u6f0f\u6781\u548c\u6e90\u6781\u4e4b\u95f4\u5c31\u4f1a\u5bfc\u901a\u3002<\/p>\n<p>\u800c PMOS \u7ba1\u5219\u76f8\u53cd\uff0c\u5f53\u6805\u6781\u7535\u538b\u4f4e\u4e8e\u6e90\u6781\u7535\u538b\u4e00\u5b9a\u7a0b\u5ea6\u65f6\u624d\u4f1a\u5bfc\u901a\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cNMOS \u7ba1\u4f7f\u7528\u5f97\u66f4\u591a\u4e00\u4e9b\uff0c\u56e0\u4e3a\u5b83\u7684\u5bfc\u901a\u7535\u963b\u66f4\u5c0f\uff0c\u5f00\u5173\u901f\u5ea6\u66f4\u5feb\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u6839\u636e\u5de5\u4f5c\u6a21\u5f0f\u7684\u4e0d\u540c\uff0cMOS \u7ba1\u8fd8\u53ef\u4ee5\u5206\u4e3a\u589e\u5f3a\u578b\u548c\u8017\u5c3d\u578b\u3002<\/p>\n<p>\u589e\u5f3a\u578b MOS \u7ba1\u5728\u6805\u6781\u6ca1\u6709\u7535\u538b\u65f6\u662f\u622a\u6b62\u7684\uff0c\u9700\u8981\u65bd\u52a0\u7535\u538b\u624d\u80fd\u5bfc\u901a\uff0c\u8fd9\u662f\u6700\u5e38\u7528\u7684\u7c7b\u578b\u3002<\/p>\n<p>\u8017\u5c3d\u578b MOS \u7ba1\u5219\u76f8\u53cd\uff0c\u5728\u6805\u6781\u6ca1\u6709\u7535\u538b\u65f6\u5c31\u662f\u5bfc\u901a\u7684\uff0c\u9700\u8981\u65bd\u52a0\u53cd\u5411\u7535\u538b\u624d\u80fd\u622a\u6b62\uff0c\u8fd9\u79cd\u7c7b\u578b\u6bd4\u8f83\u5c11\u89c1\u3002<\/p>\n<h3>2. MOS \u7ba1\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n<h4>2.1 \u7535\u573a\u6548\u5e94\u63a7\u5236<\/h4>\n<p>MOS \u7ba1\u4e4b\u6240\u4ee5\u53eb\u505a\u573a\u6548\u5e94\u6676\u4f53\u7ba1\uff0c\u662f\u56e0\u4e3a\u5b83\u662f\u901a\u8fc7\u7535\u573a\u6765\u63a7\u5236\u7535\u6d41\u7684\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u5728\u6805\u6781\u65bd\u52a0\u7535\u538b\u65f6\uff0c\u4f1a\u5728\u6c27\u5316\u5c42\u4e0b\u65b9\u7684\u534a\u5bfc\u4f53\u8868\u9762\u4ea7\u751f\u4e00\u4e2a\u7535\u573a\u3002<\/p>\n<p>\u8fd9\u4e2a\u7535\u573a\u4f1a\u5438\u5f15\u6216\u6392\u65a5\u534a\u5bfc\u4f53\u4e2d\u7684\u8f7d\u6d41\u5b50\uff08\u7535\u5b50\u6216\u7a7a\u7a74\uff09\uff0c\u4ece\u800c\u5728\u6f0f\u6781\u548c\u6e90\u6781\u4e4b\u95f4\u5f62\u6210\u6216\u6d88\u9664\u5bfc\u7535\u6c9f\u9053\u3002<\/p>\n<p>\u4ee5 NMOS \u7ba1\u4e3a\u4f8b\uff0c\u5f53\u6805\u6781\u7535\u538b\u4e3a 0V \u65f6\uff0c\u6f0f\u6781\u548c\u6e90\u6781\u4e4b\u95f4\u662f P \u578b\u534a\u5bfc\u4f53\uff0c\u4e0d\u5bfc\u7535\u3002<\/p>\n<p>\u5f53\u6805\u6781\u65bd\u52a0\u6b63\u7535\u538b\u65f6\uff0c\u7535\u573a\u4f1a\u628a P \u578b\u534a\u5bfc\u4f53\u8868\u9762\u7684\u7a7a\u7a74\u6392\u65a5\u8d70\uff0c\u540c\u65f6\u5438\u5f15\u7535\u5b50\u8fc7\u6765\u3002<\/p>\n<p>\u5f53\u7535\u5b50\u6d53\u5ea6\u8db3\u591f\u9ad8\u65f6\uff0c\u5c31\u4f1a\u5728\u8868\u9762\u5f62\u6210\u4e00\u4e2a N \u578b\u5bfc\u7535\u6c9f\u9053\uff0c\u8fd9\u65f6\u6f0f\u6781\u548c\u6e90\u6781\u4e4b\u95f4\u5c31\u5bfc\u901a\u4e86\u3002<\/p>\n<h4>2.2 \u4e09\u4e2a\u5de5\u4f5c\u533a\u57df<\/h4>\n<p>MOS \u7ba1\u5728\u5de5\u4f5c\u65f6\u6709\u4e09\u4e2a\u4e3b\u8981\u533a\u57df\uff1a\u622a\u6b62\u533a\u3001\u7ebf\u6027\u533a\uff08\u4e5f\u53eb\u6b27\u59c6\u533a\uff09\u548c\u9971\u548c\u533a\u3002<\/p>\n<p>\u5728\u622a\u6b62\u533a\u65f6\uff0c\u6805\u6781\u7535\u538b\u5c0f\u4e8e\u9608\u503c\u7535\u538b\uff0c\u6f0f\u6781\u548c\u6e90\u6781\u4e4b\u95f4\u4e0d\u5bfc\u901a\uff0c\u76f8\u5f53\u4e8e\u4e00\u4e2a\u5f00\u5173\u65ad\u5f00\u7684\u72b6\u6001\u3002<\/p>\n<p>\u8fd9\u65f6 MOS \u7ba1\u7684\u6f0f\u6781\u7535\u6d41\u51e0\u4e4e\u4e3a\u96f6\uff0c\u53ea\u6709\u5f88\u5c0f\u7684\u6f0f\u7535\u6d41\u3002<\/p>\n<p>\u5728\u7ebf\u6027\u533a\u65f6\uff0c\u6805\u6781\u7535\u538b\u5927\u4e8e\u9608\u503c\u7535\u538b\uff0c\u4e14\u6f0f\u6781\u7535\u538b\u8f83\u5c0f\uff0c\u6b64\u65f6\u6f0f\u6781\u7535\u6d41\u4e0e\u6f0f\u6e90\u7535\u538b\u6210\u6b63\u6bd4\u5173\u7cfb\uff0cMOS \u7ba1\u8868\u73b0\u5f97\u50cf\u4e00\u4e2a\u53ef\u53d8\u7535\u963b\u3002<\/p>\n<p>\u5728\u8fd9\u4e2a\u533a\u57df\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u6539\u53d8\u6805\u6781\u7535\u538b\u6765\u8c03\u8282\u5bfc\u901a\u7535\u963b\u7684\u5927\u5c0f\u3002<\/p>\n<p>\u5728\u9971\u548c\u533a\u65f6\uff0c\u6805\u6781\u7535\u538b\u5927\u4e8e\u9608\u503c\u7535\u538b\uff0c\u4e14\u6f0f\u6781\u7535\u538b\u8f83\u5927\uff0c\u6b64\u65f6\u6f0f\u6781\u7535\u6d41\u57fa\u672c\u4e0d\u968f\u6f0f\u6e90\u7535\u538b\u53d8\u5316\uff0c\u800c\u662f\u7531\u6805\u6781\u7535\u538b\u51b3\u5b9a\u3002\u8fd9\u4e2a\u533a\u57df\u4e3b\u8981\u7528\u4e8e\u653e\u5927\u7535\u8def\u3002<\/p>\n<h4>2.3 \u9608\u503c\u7535\u538b\u7684\u91cd\u8981\u6027<\/h4>\n<p>\u9608\u503c\u7535\u538b\uff08&dollar;&dollar;V\/_{th}&dollar;&dollar;\uff09\u662f MOS \u7ba1\u7684\u4e00\u4e2a\u91cd\u8981\u53c2\u6570\uff0c\u5b83\u51b3\u5b9a\u4e86 MOS \u7ba1\u4ece\u622a\u6b62\u5230\u5bfc\u901a\u9700\u8981\u591a\u5927\u7684\u6805\u6781\u7535\u538b\u3002<\/p>\n<p>\u5bf9\u4e8e NMOS \u7ba1\uff0c\u9608\u503c\u7535\u538b\u901a\u5e38\u5728 1V \u5230 4V \u4e4b\u95f4\uff0c\u5bf9\u4e8e PMOS \u7ba1\u5219\u662f\u8d1f\u503c\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u786e\u4fdd\u6805\u6781\u7535\u538b\u8db3\u591f\u5927\uff0c\u901a\u5e38\u8981\u6bd4\u9608\u503c\u7535\u538b\u9ad8\u51fa\u51e0\u4f0f\uff0c\u8fd9\u6837\u624d\u80fd\u4fdd\u8bc1 MOS \u7ba1\u5b8c\u5168\u5bfc\u901a\uff0c\u964d\u4f4e\u5bfc\u901a\u7535\u963b\u3002<\/p>\n<h3>3. MOS \u7ba1\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528<\/h3>\n<h4>3.1 \u5f00\u5173\u7535\u8def<\/h4>\n<p>\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\uff0cMOS \u7ba1\u6700\u5e38\u89c1\u7684\u5e94\u7528\u5c31\u662f\u505a\u5f00\u5173\u3002<\/p>\n<p>\u6bd4\u5982\u6211\u4eec\u8981\u7528\u5355\u7247\u673a\u63a7\u5236\u4e00\u4e2a 12V \u7684\u7535\u673a\uff0c\u5355\u7247\u673a\u7684 IO \u53e3\u53ea\u80fd\u8f93\u51fa 3.3V \u6216 5V \u7684\u7535\u538b\uff0c\u800c\u4e14\u9a71\u52a8\u80fd\u529b\u5f88\u5f31\uff0c\u8fd9\u65f6\u5c31\u9700\u8981\u7528 MOS \u7ba1\u6765\u505a\u5f00\u5173\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528 STM32 \u63a7\u5236 NMOS \u7ba1\u7684\u7b80\u5355\u4f8b\u5b50\uff1a<\/p>\n<pre><code>\/\/ \u521d\u59cb\u5316GPIO\u7528\u4e8e\u63a7\u5236MOS\u7ba1\nvoid MOS_GPIO_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\u8f93\u51fa\u6a21\u5f0f\n    GPIO_InitStruct.Pin = GPIO_PIN_5;\n    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;  \/\/ \u63a8\u633d\u8f93\u51fa\n    GPIO_InitStruct.Pull = GPIO_NOPULL;\n    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;\n    HAL_GPIO_Init(GPIOA, &amp;GPIO_InitStruct);\n    \n    \/\/ \u521d\u59cb\u72b6\u6001\u8bbe\u4e3a\u4f4e\u7535\u5e73\uff0cMOS\u7ba1\u622a\u6b62\n    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);\n}\n\u200b\n\/\/ \u6253\u5f00MOS\u7ba1\nvoid MOS_Turn_On(void)\n{\n    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);\n}\n\u200b\n\/\/ \u5173\u95edMOS\u7ba1\nvoid MOS_Turn_Off(void)\n{\n    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);\n}<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5f53\u6211\u4eec\u8c03\u7528 <code>MOS_Turn_On()<\/code> \u51fd\u6570\u65f6\uff0cPA5 \u8f93\u51fa\u9ad8\u7535\u5e73\uff0cNMOS \u7ba1\u7684\u6805\u6781\u5f97\u5230\u9ad8\u7535\u538b\uff0cMOS \u7ba1\u5bfc\u901a\uff0c\u8d1f\u8f7d\uff08\u6bd4\u5982\u7535\u673a\uff09\u5c31\u4f1a\u5de5\u4f5c\u3002<\/p>\n<p>\u8c03\u7528 <code>MOS_Turn_Off()<\/code> \u51fd\u6570\u65f6\uff0cPA5 \u8f93\u51fa\u4f4e\u7535\u5e73\uff0cMOS \u7ba1\u622a\u6b62\uff0c\u8d1f\u8f7d\u505c\u6b62\u5de5\u4f5c\u3002<\/p>\n<h4>3.2 PWM \u8c03\u901f\u7535\u8def<\/h4>\n<p>MOS \u7ba1\u8fd8\u53ef\u4ee5\u914d\u5408 PWM \u4fe1\u53f7\u6765\u5b9e\u73b0\u7535\u673a\u8c03\u901f\u3002<\/p>\n<p>\u901a\u8fc7\u6539\u53d8 PWM \u4fe1\u53f7\u7684\u5360\u7a7a\u6bd4\uff0c\u53ef\u4ee5\u63a7\u5236\u7535\u673a\u7684\u5e73\u5747\u529f\u7387\uff0c\u4ece\u800c\u5b9e\u73b0\u8c03\u901f\u3002<\/p>\n<pre><code>\/\/ PWM\u521d\u59cb\u5316\u7528\u4e8eMOS\u7ba1\u8c03\u901f\nvoid MOS_PWM_Init(void)\n{\n    TIM_HandleTypeDef htim2;\n    TIM_OC_InitTypeDef sConfigOC = {0};\n    \n    \/\/ \u4f7f\u80fdTIM2\u65f6\u949f\n    __HAL_RCC_TIM2_CLK_ENABLE();\n    \n    \/\/ \u914d\u7f6e\u5b9a\u65f6\u5668\u57fa\u672c\u53c2\u6570\n    htim2.Instance = TIM2;\n    htim2.Init.Prescaler = 84 - 1;  \/\/ \u5047\u8bbe\u7cfb\u7edf\u65f6\u949f84MHz\n    htim2.Init.CounterMode = TIM_COUNTERMODE_UP;\n    htim2.Init.Period = 1000 - 1;   \/\/ PWM\u9891\u7387\u7ea6\u4e3a1kHz\n    htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;\n    HAL_TIM_PWM_Init(&amp;htim2);\n    \n    \/\/ \u914d\u7f6ePWM\u901a\u9053\n    sConfigOC.OCMode = TIM_OCMODE_PWM1;\n    sConfigOC.Pulse = 0;  \/\/ \u521d\u59cb\u5360\u7a7a\u6bd4\u4e3a0\n    sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;\n    sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;\n    HAL_TIM_PWM_ConfigChannel(&amp;htim2, &amp;sConfigOC, TIM_CHANNEL_1);\n    \n    \/\/ \u542f\u52a8PWM\u8f93\u51fa\n    HAL_TIM_PWM_Start(&amp;htim2, TIM_CHANNEL_1);\n}\n\u200b\n\/\/ \u8bbe\u7f6ePWM\u5360\u7a7a\u6bd4\uff080-100\uff09\nvoid MOS_Set_Speed(uint8_t speed)\n{\n    if(speed &gt; 100) speed = 100;\n    \n    \/\/ \u8ba1\u7b97\u5bf9\u5e94\u7684CCR\u503c\n    uint16_t pulse = (1000 * speed) \/ 100;\n    __HAL_TIM_SET_COMPARE(&amp;htim2, TIM_CHANNEL_1, pulse);\n}<\/code><\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u914d\u7f6e\u4e86\u4e00\u4e2a 1kHz \u7684 PWM \u4fe1\u53f7\uff0c\u901a\u8fc7\u8c03\u7528 <code>MOS_Set_Speed()<\/code> \u51fd\u6570\u5e76\u4f20\u5165 0 \u5230 100 \u7684\u503c\uff0c\u5c31\u53ef\u4ee5\u63a7\u5236\u7535\u673a\u7684\u901f\u5ea6\u3002<\/p>\n<p>\u5f53\u5360\u7a7a\u6bd4\u4e3a 50% \u65f6\uff0c\u7535\u673a\u83b7\u5f97\u7684\u5e73\u5747\u529f\u7387\u662f\u6ee1\u529f\u7387\u7684\u4e00\u534a\uff0c\u901f\u5ea6\u4e5f\u5927\u7ea6\u662f\u6700\u9ad8\u901f\u5ea6\u7684\u4e00\u534a\u3002<\/p>\n<h4>3.3 \u7535\u6e90\u7ba1\u7406\u7535\u8def<\/h4>\n<p>\u5728\u5d4c\u5165\u5f0f\u7cfb\u7edf\u7684\u7535\u6e90\u7ba1\u7406\u4e2d\uff0cMOS \u7ba1\u4e5f\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\u3002<\/p>\n<p>\u6bd4\u5982\u5728\u4f4e\u529f\u8017\u8bbe\u8ba1\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u7528 PMOS \u7ba1\u6765\u63a7\u5236\u67d0\u4e9b\u6a21\u5757\u7684\u7535\u6e90\u5f00\u5173\uff0c\u5728\u4e0d\u9700\u8981\u65f6\u5b8c\u5168\u5207\u65ad\u7535\u6e90\uff0c\u8fbe\u5230\u6700\u4f4e\u529f\u8017\u3002<\/p>\n<pre><code>\/\/ \u7535\u6e90\u7ba1\u7406\u521d\u59cb\u5316\nvoid Power_Management_Init(void)\n{\n    GPIO_InitTypeDef GPIO_InitStruct = {0};\n    \n    __HAL_RCC_GPIOB_CLK_ENABLE();\n    \n    \/\/ \u914d\u7f6ePB0\u63a7\u5236PMOS\u7ba1\uff08\u4f4e\u7535\u5e73\u5bfc\u901a\uff09\n    GPIO_InitStruct.Pin = GPIO_PIN_0;\n    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;\n    GPIO_InitStruct.Pull = GPIO_PULLUP;  \/\/ \u4e0a\u62c9\uff0c\u9ed8\u8ba4\u9ad8\u7535\u5e73\n    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;\n    HAL_GPIO_Init(GPIOB, &amp;GPIO_InitStruct);\n    \n    \/\/ \u521d\u59cb\u72b6\u6001\u5173\u95ed\u7535\u6e90\n    HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0, GPIO_PIN_SET);\n}\n\u200b\n\/\/ \u6253\u5f00\u5916\u8bbe\u7535\u6e90\nvoid Peripheral_Power_On(void)\n{\n    HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0, GPIO_PIN_RESET);  \/\/ PMOS\u5bfc\u901a\n    HAL_Delay(10);  \/\/ \u7b49\u5f85\u7535\u6e90\u7a33\u5b9a\n}\n\u200b\n\/\/ \u5173\u95ed\u5916\u8bbe\u7535\u6e90\nvoid Peripheral_Power_Off(void)\n{\n    HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0, GPIO_PIN_SET);  \/\/ PMOS\u622a\u6b62\n}<\/code><\/pre>\n<p>\u8fd9\u79cd\u8bbe\u8ba1\u5728\u7535\u6c60\u4f9b\u7535\u7684\u8bbe\u5907\u4e2d\u7279\u522b\u6709\u7528\uff0c\u53ef\u4ee5\u663e\u8457\u5ef6\u957f\u7535\u6c60\u5bff\u547d\u3002<\/p>\n<h3>4. \u4f7f\u7528 MOS \u7ba1\u7684\u6ce8\u610f\u4e8b\u9879<\/h3>\n<h4>4.1 \u6805\u6781\u9a71\u52a8\u95ee\u9898<\/h4>\n<p>MOS \u7ba1\u7684\u6805\u6781\u867d\u7136\u4e0d\u9700\u8981\u7535\u6d41\uff0c\u4f46\u662f\u6709\u4e00\u5b9a\u7684\u7535\u5bb9\uff08\u6805\u6781\u7535\u5bb9\uff09\uff0c\u5728\u5f00\u5173\u8fc7\u7a0b\u4e2d\u9700\u8981\u5bf9\u8fd9\u4e2a\u7535\u5bb9\u5145\u653e\u7535\u3002<\/p>\n<p>\u5982\u679c\u9a71\u52a8\u80fd\u529b\u4e0d\u8db3\uff0c\u4f1a\u5bfc\u81f4\u5f00\u5173\u901f\u5ea6\u53d8\u6162\uff0c\u751a\u81f3\u65e0\u6cd5\u5b8c\u5168\u5bfc\u901a\u3002<\/p>\n<p>\u5bf9\u4e8e\u5927\u529f\u7387 MOS \u7ba1\uff0c\u6805\u6781\u7535\u5bb9\u53ef\u80fd\u8fbe\u5230\u51e0\u5343\u76ae\u6cd5\uff0c\u8fd9\u65f6\u5c31\u9700\u8981\u4e13\u95e8\u7684\u9a71\u52a8\u7535\u8def\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5982\u679c\u53d1\u73b0 MOS \u7ba1\u53d1\u70ed\u4e25\u91cd\uff0c\u5f88\u53ef\u80fd\u662f\u56e0\u4e3a\u6ca1\u6709\u5b8c\u5168\u5bfc\u901a\uff0c\u5de5\u4f5c\u5728\u7ebf\u6027\u533a\uff0c\u5bfc\u901a\u7535\u963b\u5f88\u5927\u3002<\/p>\n<p>\u8fd9\u65f6\u9700\u8981\u68c0\u67e5\u6805\u6781\u7535\u538b\u662f\u5426\u8db3\u591f\u9ad8\uff0c\u662f\u5426\u8d85\u8fc7\u4e86\u9608\u503c\u7535\u538b\u52a0\u4e0a\u8db3\u591f\u7684\u4f59\u91cf\u3002<\/p>\n<h4>4.2 \u9759\u7535\u9632\u62a4<\/h4>\n<p>MOS \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<p>\u5728\u710a\u63a5\u548c\u4f7f\u7528 MOS \u7ba1\u65f6\uff0c\u4e00\u5b9a\u8981\u505a\u597d\u9759\u7535\u9632\u62a4\u63aa\u65bd\u3002<\/p>\n<p>\u5efa\u8bae\u4f7f\u7528\u9632\u9759\u7535\u624b\u73af\uff0c\u710a\u63a5\u524d\u5148\u89e6\u6478\u63a5\u5730\u7684\u91d1\u5c5e\u7269\u4f53\u91ca\u653e\u8eab\u4e0a\u7684\u9759\u7535\u3002<\/p>\n<p>\u5b58\u50a8 MOS \u7ba1\u65f6\uff0c\u6700\u597d\u628a\u4e09\u4e2a\u5f15\u811a\u77ed\u63a5\u5728\u4e00\u8d77\uff0c\u6216\u8005\u63d2\u5728\u5bfc\u7535\u6ce1\u68c9\u4e0a\u3002<\/p>\n<h4>4.3 \u6563\u70ed\u8bbe\u8ba1<\/h4>\n<p>\u867d\u7136 MOS \u7ba1\u7684\u5bfc\u901a\u7535\u963b\u5f88\u5c0f\uff0c\u4f46\u5728\u5927\u7535\u6d41\u5e94\u7528\u4e2d\u4ecd\u7136\u4f1a\u4ea7\u751f\u4e00\u5b9a\u7684\u70ed\u91cf\u3002<\/p>\n<p>\u529f\u8017\u53ef\u4ee5\u7528\u516c\u5f0f&dollar;&dollar;P = I^2 \/times R<em>{DS(on)}&dollar;&dollar; \u6765\u8ba1\u7b97\uff0c\u5176\u4e2d&dollar;&dollar;I&dollar;&dollar; \u662f\u901a\u8fc7\u7684\u7535\u6d41\uff0c&dollar;&dollar;R<\/em>{DS(on)}&dollar;&dollar; \u662f\u5bfc\u901a\u7535\u963b\u3002<\/p>\n<p>\u5982\u679c\u529f\u8017\u8d85\u8fc7 1W\uff0c\u5c31\u9700\u8981\u8003\u8651\u52a0\u6563\u70ed\u7247\u4e86\u3002<\/p>\n<p>\u5728 PCB \u8bbe\u8ba1\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u589e\u5927\u94dc\u7b94\u9762\u79ef\u6765\u5e2e\u52a9\u6563\u70ed\u3002<\/p>\n<p>\u5bf9\u4e8e TO-220 \u5c01\u88c5\u7684 MOS \u7ba1\uff0c\u53ef\u4ee5\u76f4\u63a5\u628a\u6563\u70ed\u7247\u710a\u63a5\u5728 PCB \u4e0a\u3002<\/p>\n<p>\u5bf9\u4e8e\u8d34\u7247\u5c01\u88c5\u7684 MOS \u7ba1\uff0c\u53ef\u4ee5\u5728\u80cc\u9762\u94fa\u5927\u9762\u79ef\u7684\u94dc\u7b94\uff0c\u5e76\u901a\u8fc7\u8fc7\u5b54\u8fde\u63a5\u5230\u9876\u5c42\u7684\u6563\u70ed\u710a\u76d8\u3002<\/p>\n<h4>4.4 \u7eed\u6d41\u4e8c\u6781\u7ba1<\/h4>\n<p>\u5728\u9a71\u52a8\u611f\u6027\u8d1f\u8f7d\uff08\u5982\u7535\u673a\u3001\u7ee7\u7535\u5668\u3001\u7535\u78c1\u9600\uff09\u65f6\uff0c\u4e00\u5b9a\u8981\u5e76\u8054\u7eed\u6d41\u4e8c\u6781\u7ba1\u3002<\/p>\n<p>\u56e0\u4e3a\u611f\u6027\u8d1f\u8f7d\u5728\u65ad\u7535\u77ac\u95f4\u4f1a\u4ea7\u751f\u5f88\u9ad8\u7684\u53cd\u5411\u7535\u538b\uff0c\u53ef\u80fd\u4f1a\u51fb\u7a7f MOS \u7ba1\u3002\u7eed\u6d41\u4e8c\u6781\u7ba1\u53ef\u4ee5\u4e3a\u8fd9\u4e2a\u53cd\u5411\u7535\u6d41\u63d0\u4f9b\u4e00\u4e2a\u56de\u8def\uff0c\u4fdd\u62a4 MOS \u7ba1\u4e0d\u88ab\u635f\u574f\u3002<\/p>\n<pre><code>\/\/ \u5e26\u7eed\u6d41\u4fdd\u62a4\u7684\u7535\u673a\u63a7\u5236\nvoid Motor_Control_With_Protection(uint8_t enable)\n{\n    if(enable)\n    {\n        \/\/ \u542f\u52a8\u7535\u673a\u524d\u5148\u786e\u4fddPWM\u5360\u7a7a\u6bd4\u4e3a0\n        MOS_Set_Speed(0);\n        HAL_Delay(1);\n        \n        \/\/ \u6253\u5f00MOS\u7ba1\n        MOS_Turn_On();\n        \n        \/\/ \u9010\u6e10\u589e\u52a0\u901f\u5ea6\uff0c\u907f\u514d\u542f\u52a8\u7535\u6d41\u8fc7\u5927\n        for(uint8_t i = 0; i &lt;= 50; i++)\n        {\n            MOS_Set_Speed(i);\n            HAL_Delay(10);\n        }\n    }\n    else\n    {\n        \/\/ \u9010\u6e10\u964d\u4f4e\u901f\u5ea6\n        for(uint8_t i = 50; i &gt; 0; i--)\n        {\n            MOS_Set_Speed(i);\n            HAL_Delay(10);\n        }\n        \n        \/\/ \u5173\u95edMOS\u7ba1\n        MOS_Turn_Off();\n    }\n}<\/code><\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u5b9e\u73b0\u4e86\u7535\u673a\u7684\u8f6f\u542f\u52a8\u548c\u8f6f\u505c\u6b62\uff0c\u53ef\u4ee5\u51cf\u5c0f\u542f\u52a8\u548c\u505c\u6b62\u65f6\u7684\u7535\u6d41\u51b2\u51fb\uff0c\u5ef6\u957f MOS \u7ba1\u548c\u7535\u673a\u7684\u5bff\u547d\u3002<\/p>\n<h3>5. \u603b\u7ed3<\/h3>\n<p>MOS \u7ba1\u662f\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u5143\u5668\u4ef6\uff0c\u5b83\u53ef\u4ee5\u7528\u5f88\u5c0f\u7684\u63a7\u5236\u529f\u7387\u6765\u63a7\u5236\u5f88\u5927\u7684\u8d1f\u8f7d\u529f\u7387\uff0c\u662f\u5b9e\u73b0\u5404\u79cd\u5f00\u5173\u3001\u8c03\u901f\u3001\u7535\u6e90\u7ba1\u7406\u529f\u80fd\u7684\u57fa\u7840\u3002<\/p>\n<p>\u7406\u89e3 MOS \u7ba1\u7684\u5de5\u4f5c\u539f\u7406\u548c\u4f7f\u7528\u65b9\u6cd5\uff0c\u5bf9\u4e8e\u505a\u597d\u786c\u4ef6\u8bbe\u8ba1\u548c\u9a71\u52a8\u5f00\u53d1\u90fd\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684 MOS \u7ba1\u9700\u8981\u8003\u8651\u591a\u4e2a\u53c2\u6570\uff1a\u5bfc\u901a\u7535\u963b\u3001\u6700\u5927\u7535\u6d41\u3001\u6700\u5927\u7535\u538b\u3001\u5f00\u5173\u901f\u5ea6\u3001\u5c01\u88c5\u5f62\u5f0f\u7b49\u3002<\/p>\n<p>\u4e00\u822c\u6765\u8bf4\uff0c\u5bfc\u901a\u7535\u963b\u8d8a\u5c0f\u8d8a\u597d\uff0c\u4f46\u4ef7\u683c\u4e5f\u4f1a\u8d8a\u8d35\u3002<\/p>\n<p>\u6700\u5927\u7535\u6d41\u548c\u7535\u538b\u8981\u7559\u6709\u8db3\u591f\u7684\u4f59\u91cf\uff0c\u901a\u5e38\u9009\u62e9\u5b9e\u9645\u503c\u7684 2 \u500d\u4ee5\u4e0a\u3002<\/p>\n<p>\u5bf9\u4e8e\u9ad8\u901f\u5f00\u5173\u5e94\u7528\uff0c\u8fd8\u8981\u6ce8\u610f\u6805\u6781\u7535\u8377\u548c\u5f00\u5173\u65f6\u95f4\u7b49\u53c2\u6570\u3002<\/p>\n<p>\u638c\u63e1\u4e86 MOS \u7ba1\u7684\u4f7f\u7528\uff0c\u4f60\u5c31\u53ef\u4ee5\u8bbe\u8ba1\u51fa\u66f4\u52a0\u5f3a\u5927\u548c\u7075\u6d3b\u7684\u5d4c\u5165\u5f0f\u7cfb\u7edf\u4e86\u3002<\/p>\n<p>\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u5927\u5bb6\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528 MOS \u7ba1\u3002<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000047552687\">https:\/\/segmentfault.com\/a\/1190000047552687<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ec0\u4e48\u662f MOS \u7ba1\uff1f \u5927\u5bb6\u597d\uff0c\u6211\u662f\u826f\u8bb8\u3002 \u6700\u8fd1\u5728\u505a\u4e00\u4e2a\u7535\u6e90\u7ba1\u7406\u7684\u9879\u76ee\uff0c\u9700\u8981\u7528\u5230 MOS \u7ba1\u6765\u63a7\u5236\u5927\u7535\u6d41\u7684\u5f00\u5173\u3002 [&hellip;]<\/p>\n","protected":false},"author":4,"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-10021199","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\/10021199","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10021199"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021199\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10021199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10021199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10021199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}