{"id":10021273,"date":"2026-02-25T12:09:28","date_gmt":"2026-02-25T04:09:28","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021273"},"modified":"2026-02-25T12:09:28","modified_gmt":"2026-02-25T04:09:28","slug":"%e6%97%a0%e7%ba%bf%e5%85%85%e7%94%b5%e5%92%8c%e7%94%b5%e7%a3%81%e5%85%bc%e5%ae%b9%e6%80%a7%e6%8a%80%e6%9c%af","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021273","title":{"rendered":"\u65e0\u7ebf\u5145\u7535\u548c\u7535\u78c1\u517c\u5bb9\u6027\u6280\u672f"},"content":{"rendered":"

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

\u8fd1\u5e74\u6765\uff0c\u65e0\u7ebf\u5145\u7535\u6280\u672f\u5df2\u7ecf\u4ece\u9ad8\u7aef\u65d7\u8230\u624b\u673a\u9010\u6e10\u666e\u53ca\u5230\u5404\u7c7b\u6d88\u8d39\u7535\u5b50\u4ea7\u54c1\uff0c\u751a\u81f3\u5f00\u59cb\u5728\u6c7d\u8f66\u3001\u533b\u7597\u8bbe\u5907\u7b49\u9886\u57df\u5d2d\u9732\u5934\u89d2\u3002<\/p>\n

\u4f5c\u4e3a\u4e00\u540d\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\uff0c\u6211\u5728\u6c7d\u8f66\u7535\u5b50\u9879\u76ee\u4e2d\u4e5f\u63a5\u89e6\u8fc7\u4e0d\u5c11\u65e0\u7ebf\u5145\u7535\u6a21\u5757\u7684\u96c6\u6210\u5de5\u4f5c\u3002<\/p>\n

\u4eca\u5929\u5c31\u548c\u5927\u5bb6\u804a\u804a\u65e0\u7ebf\u5145\u7535\u6280\u672f\u7684\u539f\u7406\uff0c\u4ee5\u53ca\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u6700\u8ba9\u5de5\u7a0b\u5e08\u5934\u75bc\u7684\u7535\u78c1\u517c\u5bb9\u6027\uff08EMC\uff09\u95ee\u9898\u3002<\/p>\n

1. \u65e0\u7ebf\u5145\u7535\u6280\u672f\u539f\u7406<\/h2>\n

1.1 \u7535\u78c1\u611f\u5e94\u5f0f\u65e0\u7ebf\u5145\u7535<\/h3>\n

\u76ee\u524d\u5e02\u9762\u4e0a\u6700\u5e38\u89c1\u7684\u65e0\u7ebf\u5145\u7535\u6280\u672f\u662f\u57fa\u4e8e\u7535\u78c1\u611f\u5e94\u539f\u7406\u7684\uff0c\u8fd9\u4e5f\u662f Qi \u6807\u51c6\uff08\u7531\u65e0\u7ebf\u5145\u7535\u8054\u76df WPC \u5236\u5b9a\uff09\u6240\u91c7\u7528\u7684\u6838\u5fc3\u6280\u672f\u3002<\/p>\n

\u7b80\u5355\u6765\u8bf4\uff0c\u5c31\u662f\u5229\u7528\u6cd5\u62c9\u7b2c\u7535\u78c1\u611f\u5e94\u5b9a\u5f8b\uff1a\u5f53\u53d1\u5c04\u7aef\u7ebf\u5708\u901a\u8fc7\u4ea4\u53d8\u7535\u6d41\u65f6\uff0c\u4f1a\u5728\u5468\u56f4\u4ea7\u751f\u4ea4\u53d8\u78c1\u573a\uff0c\u63a5\u6536\u7aef\u7ebf\u5708\u5904\u4e8e\u8fd9\u4e2a\u78c1\u573a\u4e2d\u5c31\u4f1a\u611f\u5e94\u51fa\u7535\u52a8\u52bf\uff0c\u4ece\u800c\u5b9e\u73b0\u80fd\u91cf\u4f20\u8f93\u3002<\/p>\n

\u6211\u8bb0\u5f97\u521a\u63a5\u89e6\u8fd9\u4e2a\u6280\u672f\u65f6\uff0c\u9879\u76ee\u7ecf\u7406\u8ba9\u6211\u8d1f\u8d23\u5728\u8f66\u8f7d\u4e2d\u63a7\u53f0\u96c6\u6210\u4e00\u4e2a\u624b\u673a\u65e0\u7ebf\u5145\u7535\u677f\u3002<\/p>\n

\u5f53\u65f6\u6211\u5929\u771f\u5730\u4ee5\u4e3a\u53ea\u8981\u628a\u5145\u7535\u6a21\u5757\u710a\u63a5\u4e0a\u53bb\u5c31\u884c\u4e86.<\/p>\n

\u7ed3\u679c\u6d4b\u8bd5\u65f6\u53d1\u73b0\u5404\u79cd\u95ee\u9898\uff1a\u5145\u7535\u6548\u7387\u4f4e\u3001\u53d1\u70ed\u4e25\u91cd\u3001\u8fd8\u5e72\u6270\u4e86\u8f66\u8f7d\u6536\u97f3\u673a\u4fe1\u53f7\u3002<\/p>\n

\u540e\u6765\u624d\u660e\u767d\uff0c\u65e0\u7ebf\u5145\u7535\u7cfb\u7edf\u7684\u8bbe\u8ba1\u8fdc\u6bd4\u60f3\u8c61\u4e2d\u590d\u6742\u3002<\/p>\n

\u53d1\u5c04\u7aef\u7684\u6838\u5fc3\u662f\u4e00\u4e2a\u9006\u53d8\u7535\u8def\uff0c\u901a\u5e38\u5de5\u4f5c\u5728 100kHz \u5230 205kHz \u9891\u6bb5\uff08Qi \u6807\u51c6\u89c4\u5b9a\u7684\u8303\u56f4\uff09\u3002<\/p>\n

\u4ee5 STM32 \u4e3a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u5b9a\u65f6\u5668\u4ea7\u751f PWM \u4fe1\u53f7\u6765\u9a71\u52a8\u5168\u6865\u6216\u534a\u6865\u9006\u53d8\u7535\u8def\uff1a<\/p>\n

\/\/ STM32 HAL\u5e93\u914d\u7f6ePWM\u7528\u4e8e\u65e0\u7ebf\u5145\u7535\u53d1\u5c04\u7aef\nvoid WirelessCharger_PWM_Init(void)\n{\n    TIM_HandleTypeDef htim1;\n    TIM_OC_InitTypeDef sConfigOC = {0};\n    \n    \/\/ \u914d\u7f6e\u5b9a\u65f6\u5668\u57fa\u672c\u53c2\u6570\n    htim1.Instance = TIM1;\n    htim1.Init.Prescaler = 0;\n    htim1.Init.CounterMode = TIM_COUNTERMODE_UP;\n    htim1.Init.Period = 719;  \/\/ \u5047\u8bbe\u7cfb\u7edf\u65f6\u949f72MHz\uff0c\u8f93\u51fa\u7ea6100kHz\n    htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;\n    htim1.Init.RepetitionCounter = 0;\n    HAL_TIM_PWM_Init(&htim1);\n    \n    \/\/ \u914d\u7f6ePWM\u901a\u9053\n    sConfigOC.OCMode = TIM_OCMODE_PWM1;\n    sConfigOC.Pulse = 360;  \/\/ 50%\u5360\u7a7a\u6bd4\n    sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;\n    sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;\n    HAL_TIM_PWM_ConfigChannel(&htim1\uff0c &sConfigOC\uff0c TIM_CHANNEL_1);\n    \n    \/\/ \u542f\u52a8PWM\u8f93\u51fa\n    HAL_TIM_PWM_Start(&htim1\uff0c TIM_CHANNEL_1);\n}<\/code><\/pre>\n
\u8fd9\u6bb5\u4ee3\u7801\u914d\u7f6e\u4e86\u4e00\u4e2a 100kHz \u7684 PWM \u4fe1\u53f7\uff0c\u7528\u4e8e\u9a71\u52a8\u9006\u53d8\u7535\u8def\u3002<\/p>\n
\u4f46\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u9891\u7387\u9700\u8981\u6839\u636e\u8d1f\u8f7d\u60c5\u51b5\u52a8\u6001\u8c03\u6574\uff0c\u4ee5\u5b9e\u73b0\u6700\u4f73\u7684\u80fd\u91cf\u4f20\u8f93\u6548\u7387\u3002<\/p>\n
1.2 \u78c1\u5171\u632f\u5f0f\u65e0\u7ebf\u5145\u7535<\/h3>\n
\u9664\u4e86\u7535\u78c1\u611f\u5e94\uff0c\u8fd8\u6709\u4e00\u79cd\u78c1\u5171\u632f\u6280\u672f\uff0c\u5b83\u5141\u8bb8\u66f4\u8fdc\u7684\u4f20\u8f93\u8ddd\u79bb\uff08\u53ef\u8fbe\u51e0\u5398\u7c73\u751a\u81f3\u5341\u51e0\u5398\u7c73\uff09\uff0c\u800c\u4e14\u5bf9\u4f4d\u7f6e\u7684\u8981\u6c42\u6ca1\u90a3\u4e48\u4e25\u683c\u3002<\/p>\n
\u8fd9\u79cd\u6280\u672f\u7684\u539f\u7406\u662f\u8ba9\u53d1\u5c04\u7aef\u548c\u63a5\u6536\u7aef\u90fd\u5de5\u4f5c\u5728\u76f8\u540c\u7684\u8c10\u632f\u9891\u7387\u4e0a\uff0c\u901a\u8fc7\u5171\u632f\u8026\u5408\u6765\u4f20\u8f93\u80fd\u91cf\u3002<\/p>\n
\u78c1\u5171\u632f\u6280\u672f\u5728\u533b\u7597\u8bbe\u5907\u4e2d\u5e94\u7528\u8f83\u591a\uff0c\u6bd4\u5982\u690d\u5165\u5f0f\u533b\u7597\u5668\u68b0\u7684\u5145\u7535\u3002<\/p>\n
\u56e0\u4e3a\u5b83\u53ef\u4ee5\u7a7f\u900f\u4e00\u5b9a\u539a\u5ea6\u7684\u975e\u91d1\u5c5e\u6750\u6599\uff0c\u4e0d\u9700\u8981\u7cbe\u786e\u5bf9\u4f4d\u3002<\/p>\n
\u4e0d\u8fc7\u8fd9\u79cd\u6280\u672f\u7684\u7535\u8def\u8bbe\u8ba1\u66f4\u590d\u6742\uff0c\u5bf9\u5143\u5668\u4ef6\u7684\u53c2\u6570\u4e00\u81f4\u6027\u8981\u6c42\u4e5f\u66f4\u9ad8\u3002<\/p>\n
1.3 \u65e0\u7ebf\u5145\u7535\u7cfb\u7edf\u7684\u7ec4\u6210<\/h3>\n
\u4e00\u4e2a\u5b8c\u6574\u7684\u65e0\u7ebf\u5145\u7535\u7cfb\u7edf\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\uff1a<\/p>\n
1.1.1 \u53d1\u5c04\u7aef\uff1a\u5305\u62ec\u7535\u6e90\u7ba1\u7406\u82af\u7247\u3001\u9006\u53d8\u7535\u8def\u3001\u53d1\u5c04\u7ebf\u5708\u3001\u63a7\u5236 MCU\u3001\u901a\u4fe1\u6a21\u5757\u7b49\u3002<\/p>\n
1.1.2 \u63a5\u6536\u7aef\uff1a\u5305\u62ec\u63a5\u6536\u7ebf\u5708\u3001\u6574\u6d41\u7535\u8def\u3001\u7a33\u538b\u7535\u8def\u3001\u5145\u7535\u7ba1\u7406\u82af\u7247\u3001\u901a\u4fe1\u6a21\u5757\u7b49\u3002<\/p>\n
1.1.3 \u901a\u4fe1\u534f\u8bae\uff1a\u53d1\u5c04\u7aef\u548c\u63a5\u6536\u7aef\u9700\u8981\u901a\u8fc7\u67d0\u79cd\u65b9\u5f0f\u8fdb\u884c\u901a\u4fe1\uff0c\u4ea4\u6362\u529f\u7387\u9700\u6c42\u3001\u5145\u7535\u72b6\u6001\u7b49\u4fe1\u606f\u3002<\/p>\n
Qi \u6807\u51c6\u91c7\u7528\u7684\u662f\u53cd\u5411\u6563\u5c04\u8c03\u5236\u6280\u672f\uff0c\u63a5\u6536\u7aef\u901a\u8fc7\u6539\u53d8\u8d1f\u8f7d\u6765\u8c03\u5236\u4fe1\u53f7\uff0c\u53d1\u5c04\u7aef\u901a\u8fc7\u68c0\u6d4b\u7ebf\u5708\u7535\u6d41\u6216\u7535\u538b\u7684\u53d8\u5316\u6765\u89e3\u8c03\u4fe1\u606f\u3002<\/p>\n
2. \u7535\u78c1\u517c\u5bb9\u6027\u6311\u6218<\/h2>\n
2.1 EMC \u95ee\u9898\u7684\u672c\u8d28<\/h3>\n
\u65e0\u7ebf\u5145\u7535\u7cfb\u7edf\u5929\u751f\u5c31\u662f\u4e00\u4e2a\u5f3a\u7535\u78c1\u5e72\u6270\u6e90\u3002<\/p>\n
\u60f3\u60f3\u770b\uff0c\u6211\u4eec\u8981\u5728\u51e0\u5398\u7c73\u7684\u8ddd\u79bb\u5185\u4f20\u8f93 5W \u5230 15W \u751a\u81f3\u66f4\u9ad8\u7684\u529f\u7387\uff0c\u8fd9\u610f\u5473\u7740\u53d1\u5c04\u7ebf\u5708\u5468\u56f4\u5b58\u5728\u5f88\u5f3a\u7684\u4ea4\u53d8\u78c1\u573a\u3002<\/p>\n
\u8fd9\u4e2a\u78c1\u573a\u4e0d\u4ec5\u4f1a\u611f\u5e94\u5230\u63a5\u6536\u7ebf\u5708\uff0c\u4e5f\u4f1a\u611f\u5e94\u5230\u5468\u56f4\u7684\u4efb\u4f55\u5bfc\u4f53\u4e0a\uff0c\u9020\u6210\u7535\u78c1\u5e72\u6270\u3002<\/p>\n
\u6211\u5728\u505a\u90a3\u4e2a\u8f66\u8f7d\u65e0\u7ebf\u5145\u7535\u9879\u76ee\u65f6\uff0c\u6700\u5934\u75bc\u7684\u5c31\u662f EMC \u6d4b\u8bd5\u3002<\/p>\n
\u7b2c\u4e00\u6b21\u9001\u68c0\uff0c\u8f90\u5c04\u53d1\u5c04\u8d85\u6807\u4e86\u5c06\u8fd1 20dB\uff0c\u5b8c\u5168\u4e0d\u7b26\u5408\u6c7d\u8f66\u7535\u5b50\u7684 CISPR 25 \u6807\u51c6\u3002<\/p>\n
\u5f53\u65f6\u538b\u529b\u7279\u522b\u5927\uff0c\u56e0\u4e3a\u5982\u679c EMC \u8fc7\u4e0d\u4e86\uff0c\u6574\u4e2a\u9879\u76ee\u5c31\u8981\u5ef6\u671f\u3002<\/p>\n
2.2 \u4f20\u5bfc\u5e72\u6270<\/h3>\n
\u65e0\u7ebf\u5145\u7535\u7cfb\u7edf\u7684\u4f20\u5bfc\u5e72\u6270\u4e3b\u8981\u6765\u81ea\u4e8e\u9006\u53d8\u7535\u8def\u7684\u5f00\u5173\u52a8\u4f5c\u3002<\/p>\n
\u6bcf\u6b21 MOSFET \u5f00\u5173\u65f6\uff0c\u90fd\u4f1a\u4ea7\u751f\u5f88\u5927\u7684 di\/dt \u548c dv\/dt\uff0c\u8fd9\u4e9b\u9ad8\u9891\u5206\u91cf\u4f1a\u901a\u8fc7\u7535\u6e90\u7ebf\u4f20\u5bfc\u51fa\u53bb\uff0c\u5e72\u6270\u5176\u4ed6\u8bbe\u5907\u3002<\/p>\n
\u89e3\u51b3\u4f20\u5bfc\u5e72\u6270\u7684\u5e38\u7528\u65b9\u6cd5\u5305\u62ec:<\/p>\n
2.1.1 \u5728\u7535\u6e90\u8f93\u5165\u7aef\u52a0 EMI \u6ee4\u6ce2\u5668\uff0c\u901a\u5e38\u91c7\u7528 \u03c0 \u578b\u6216 T \u578b\u6ee4\u6ce2\u7f51\u7edc\uff0c\u5305\u62ec\u5171\u6a21\u7535\u611f\u3001\u5dee\u6a21\u7535\u611f\u548c X \u7535\u5bb9\u3001Y \u7535\u5bb9\u3002<\/p>\n
2.1.2 \u4f18\u5316 PCB \u5e03\u5c40\uff0c\u7f29\u77ed\u5927\u7535\u6d41\u56de\u8def\u7684\u9762\u79ef\uff0c\u51cf\u5c11\u5bc4\u751f\u7535\u611f\u3002<\/p>\n
\u6211\u7684\u7ecf\u9a8c\u662f\uff0c\u9006\u53d8\u7535\u8def\u7684\u529f\u7387\u56de\u8def\u4e00\u5b9a\u8981\u505a\u5230\u6700\u77ed\u6700\u7c97\uff0c\u800c\u4e14\u8981\u5728\u9876\u5c42\u548c\u5e95\u5c42\u90fd\u94fa\u94dc\uff0c\u5f62\u6210\u826f\u597d\u7684\u56de\u6d41\u8def\u5f84\u3002<\/p>\n
2.1.3 \u9009\u62e9\u5408\u9002\u7684\u5f00\u5173\u9891\u7387\u548c\u8f6f\u5f00\u5173\u6280\u672f\u3002<\/p>\n
\u5982\u679c\u80fd\u5b9e\u73b0\u96f6\u7535\u538b\u5f00\u5173(ZVS)\u6216\u96f6\u7535\u6d41\u5f00\u5173(ZCS)\uff0c\u53ef\u4ee5\u5927\u5e45\u964d\u4f4e\u5f00\u5173\u635f\u8017\u548c EMI\u3002<\/p>\n
\/\/ \u52a8\u6001\u8c03\u6574\u5f00\u5173\u9891\u7387\u4ee5\u4f18\u5316EMC\u6027\u80fd\nvoid Adjust_Switching_Frequency(uint32_t load_power)\n{\n    uint32_t new_period;\n    \n    if(load_power < 5000) {  \/\/ \u5c0f\u4e8e5W\n        new_period = 800;  \/\/ \u964d\u4f4e\u9891\u7387\u523090kHz\n    } else if(load_power < 10000) {  \/\/ 5W-10W\n        new_period = 720;  \/\/ 100kHz\n    } else {  \/\/ \u5927\u4e8e10W\n        new_period = 650;  \/\/ \u63d0\u9ad8\u5230110kHz\n    }\n    \n    __HAL_TIM_SET_AUTORELOAD(&htim1\uff0c new_period);\n    __HAL_TIM_SET_COMPARE(&htim1\uff0c TIM_CHANNEL_1\uff0c new_period\/2);\n}<\/code><\/pre>\n
2.3 \u8f90\u5c04\u5e72\u6270<\/h3>\n
\u8f90\u5c04\u5e72\u6270\u662f\u65e0\u7ebf\u5145\u7535\u7cfb\u7edf\u66f4\u96be\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/p>\n
\u53d1\u5c04\u7ebf\u5708\u672c\u8eab\u5c31\u662f\u4e00\u4e2a\u5929\u7ebf\uff0c\u5b83\u4e0d\u4ec5\u53d1\u5c04\u5de5\u4f5c\u9891\u7387\u7684\u57fa\u6ce2\uff0c\u8fd8\u4f1a\u53d1\u5c04\u5927\u91cf\u7684\u8c10\u6ce2\u5206\u91cf\u3002<\/p>\n
\u8fd9\u4e9b\u8c10\u6ce2\u53ef\u80fd\u843d\u5728\u5404\u79cd\u901a\u4fe1\u9891\u6bb5\u5185\uff0c\u5e72\u6270 WiFi\u3001\u84dd\u7259\u3001GPS\u3001FM \u6536\u97f3\u673a\u7b49\u8bbe\u5907\u3002<\/p>\n
\u5728\u6211\u90a3\u4e2a\u8f66\u8f7d\u9879\u76ee\u4e2d\uff0c\u65e0\u7ebf\u5145\u7535\u5de5\u4f5c\u65f6\uff0cFM \u6536\u97f3\u673a\u4f1a\u51fa\u73b0\u660e\u663e\u7684\u566a\u58f0\uff0c\u7279\u522b\u662f\u5728\u67d0\u4e9b\u9891\u6bb5\u3002<\/p>\n
\u540e\u6765\u6211\u4eec\u91c7\u53d6\u4e86\u51e0\u4e2a\u63aa\u65bd:<\/p>\n
2.2.1 \u7ebf\u5708\u5c4f\u853d:\u5728\u53d1\u5c04\u7ebf\u5708\u548c\u63a5\u6536\u7ebf\u5708\u80cc\u9762\u90fd\u52a0\u4e86\u94c1\u6c27\u4f53\u78c1\u5c4f\u853d\u7247\uff0c\u53ef\u4ee5\u6709\u6548\u7ea6\u675f\u78c1\u573a\uff0c\u9632\u6b62\u5411\u5916\u6cc4\u6f0f\u3002<\/p>\n
\u4f46\u8981\u6ce8\u610f\uff0c\u5c4f\u853d\u7247\u7684\u4f4d\u7f6e\u548c\u539a\u5ea6\u9700\u8981\u4ed4\u7ec6\u8c03\u8bd5\uff0c\u5426\u5219\u4f1a\u964d\u4f4e\u5145\u7535\u6548\u7387\u3002<\/p>\n
2.2.2 \u9891\u7387\u8df3\u53d8\u6280\u672f:\u5f53\u68c0\u6d4b\u5230\u67d0\u4e2a\u9891\u7387\u5e72\u6270\u4e25\u91cd\u65f6\uff0c\u81ea\u52a8\u5207\u6362\u5230\u53e6\u4e00\u4e2a\u9891\u7387\u5de5\u4f5c\u3002<\/p>\n
Qi \u6807\u51c6\u5141\u8bb8\u5728\u4e00\u5b9a\u8303\u56f4\u5185\u8c03\u6574\u5de5\u4f5c\u9891\u7387\u3002<\/p>\n
2.2.3 \u91d1\u5c5e\u5916\u58f3\u63a5\u5730:\u5982\u679c\u8bbe\u5907\u6709\u91d1\u5c5e\u5916\u58f3\uff0c\u4e00\u5b9a\u8981\u826f\u597d\u63a5\u5730\u3002<\/p>\n
\u4f46\u8981\u6ce8\u610f\u63a5\u5730\u65b9\u5f0f\uff0c\u907f\u514d\u5f62\u6210\u5730\u73af\u8def\u3002<\/p>\n
2.2.4 \u6ee4\u6ce2\u548c\u5438\u6536:\u5728\u5173\u952e\u4fe1\u53f7\u7ebf\u4e0a\u52a0\u78c1\u73e0\u3001\u7535\u5bb9\u8fdb\u884c\u6ee4\u6ce2\uff0c\u5728\u5bb9\u6613\u4ea7\u751f\u8c10\u632f\u7684\u5730\u65b9\u52a0\u963b\u5c3c\u7535\u963b\u3002<\/p>\n
2.4 \u5bf9\u5176\u4ed6\u8bbe\u5907\u7684\u5e72\u6270<\/h3>\n
\u65e0\u7ebf\u5145\u7535\u7cfb\u7edf\u4e0d\u4ec5\u8981\u8003\u8651\u81ea\u8eab\u7684 EMC \u6027\u80fd\uff0c\u8fd8\u8981\u8003\u8651\u5bf9\u5468\u56f4\u8bbe\u5907\u7684\u5f71\u54cd\u3002<\/p>\n
\u6bd4\u5982\u5728\u624b\u673a\u4e0a\uff0c\u65e0\u7ebf\u5145\u7535\u65f6\u53ef\u80fd\u4f1a\u5e72\u6270 NFC\u3001\u6307\u7eb9\u8bc6\u522b\u3001\u6444\u50cf\u5934\u7b49\u6a21\u5757\u3002<\/p>\n
\u5728\u6c7d\u8f66\u4e0a\uff0c\u53ef\u80fd\u4f1a\u5e72\u6270\u94a5\u5319\u8bc6\u522b\u3001\u80ce\u538b\u76d1\u6d4b\u7b49\u7cfb\u7edf\u3002<\/p>\n
\u6211\u9047\u5230\u8fc7\u4e00\u4e2a\u6848\u4f8b\uff0c\u67d0\u6b3e\u624b\u673a\u5728\u65e0\u7ebf\u5145\u7535\u65f6\uff0c\u89e6\u6478\u5c4f\u4f1a\u51fa\u73b0\u8bef\u89e6\u73b0\u8c61\u3002<\/p>\n
\u540e\u6765\u5206\u6790\u53d1\u73b0\uff0c\u662f\u5145\u7535\u7ebf\u5708\u4ea7\u751f\u7684\u78c1\u573a\u5728\u89e6\u6478\u5c4f\u7684 ITO \u5c42\u4e0a\u611f\u5e94\u51fa\u4e86\u5e72\u6270\u4fe1\u53f7\u3002<\/p>\n
\u6700\u540e\u901a\u8fc7\u8c03\u6574\u7ebf\u5708\u4f4d\u7f6e\u548c\u589e\u52a0\u5c4f\u853d\u624d\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n
3. EMC \u8bbe\u8ba1\u7684\u5b9e\u8df5\u7ecf\u9a8c<\/h2>\n
3.1 PCB \u8bbe\u8ba1\u8981\u70b9<\/h3>\n
\u5bf9\u4e8e\u65e0\u7ebf\u5145\u7535\u7cfb\u7edf\uff0cPCB \u8bbe\u8ba1\u81f3\u5173\u91cd\u8981\u3002<\/p>\n
\u6211\u603b\u7ed3\u4e86\u51e0\u4e2a\u5173\u952e\u70b9:<\/p>\n
3.1.1 \u5206\u533a\u5e03\u5c40:\u5c06\u6570\u5b57\u7535\u8def\u3001\u6a21\u62df\u7535\u8def\u3001\u529f\u7387\u7535\u8def\u4e25\u683c\u5206\u5f00\uff0c\u5404\u81ea\u72ec\u7acb\u4f9b\u7535\u548c\u63a5\u5730\u3002<\/p>\n
3.1.2 \u5730\u5e73\u9762\u5b8c\u6574:\u5c3d\u91cf\u4fdd\u6301\u5730\u5e73\u9762\u7684\u5b8c\u6574\u6027\uff0c\u907f\u514d\u5206\u5272\u3002\u5982\u679c\u5fc5\u987b\u5206\u5272\uff0c\u8981\u5728\u5206\u5272\u5904\u52a0\u8de8\u63a5\u7535\u5bb9\u3002<\/p>\n
3.1.3 \u8d70\u7ebf\u4f18\u5316:\u9ad8\u9891\u4fe1\u53f7\u7ebf\u8981\u77ed\u800c\u7c97\uff0c\u5dee\u5206\u4fe1\u53f7\u8981\u7b49\u957f\u7b49\u5bbd\uff0c\u963b\u6297\u5339\u914d\u3002<\/p>\n
\u5927\u7535\u6d41\u8d70\u7ebf\u8981\u8db3\u591f\u5bbd\uff0c\u5fc5\u8981\u65f6\u53ef\u4ee5\u591a\u5c42\u5e76\u8054\u3002<\/p>\n
3.1.4 \u8fc7\u5b54\u5904\u7406:\u8fc7\u5b54\u4f1a\u5f15\u5165\u5bc4\u751f\u7535\u611f\uff0c\u5728\u9ad8\u9891\u7535\u8def\u4e2d\u8981\u5c3d\u91cf\u51cf\u5c11\u8fc7\u5b54\u6570\u91cf\u3002<\/p>\n
\u5982\u679c\u5fc5\u987b\u4f7f\u7528\uff0c\u53ef\u4ee5\u91c7\u7528\u591a\u4e2a\u8fc7\u5b54\u5e76\u8054\u6765\u964d\u4f4e\u5bc4\u751f\u7535\u611f\u3002<\/p>\n
\/\/ \u5728\u4ee3\u7801\u4e2d\u76d1\u6d4bEMC\u76f8\u5173\u53c2\u6570\ntypedef struct {\n    uint32_t switching_freq;      \/\/ \u5f53\u524d\u5f00\u5173\u9891\u7387\n    uint16_t coil_current;        \/\/ \u7ebf\u5708\u7535\u6d41\n    uint16_t coil_voltage;        \/\/ \u7ebf\u5708\u7535\u538b\n    int8_t   temperature;         \/\/ \u6e29\u5ea6\n    uint8_t  efficiency;          \/\/ \u6548\u7387\n} WirelessCharger_Status_t;\n\u200b\nvoid Monitor_EMC_Parameters(WirelessCharger_Status_t *status)\n{\n    \/\/ \u8bfb\u53d6ADC\u83b7\u53d6\u7535\u6d41\u7535\u538b\n    status->coil_current = HAL_ADC_GetValue(&hadc1);\n    status->coil_voltage = HAL_ADC_GetValue(&hadc2);\n    \n    \/\/ \u8ba1\u7b97\u6548\u7387\n    uint32_t input_power = status->coil_voltage * status->coil_current;\n    uint32_t output_power = Get_Output_Power();\n    status->efficiency = (output_power * 100) \/ input_power;\n    \n    \/\/ \u5982\u679c\u6548\u7387\u8fc7\u4f4e\uff0c\u53ef\u80fd\u5b58\u5728EMC\u95ee\u9898\u5bfc\u81f4\u7684\u80fd\u91cf\u635f\u8017\n    if(status->efficiency < 70) {\n        \/\/ \u89e6\u53d1\u544a\u8b66\u6216\u8c03\u6574\u5de5\u4f5c\u53c2\u6570\n        Adjust_Working_Parameters();\n    }\n}<\/code><\/pre>\n
3.2 \u6d4b\u8bd5\u4e0e\u8c03\u8bd5<\/h3>\n
EMC \u6d4b\u8bd5\u662f\u4e00\u4e2a\u8fed\u4ee3\u7684\u8fc7\u7a0b\uff0c\u5f88\u5c11\u6709\u4ea7\u54c1\u80fd\u4e00\u6b21\u901a\u8fc7\u6240\u6709\u6d4b\u8bd5\u3002<\/p>\n
\u6211\u7684\u5efa\u8bae\u662f:<\/p>\n
3.2.1 \u5c3d\u65e9\u6d4b\u8bd5:\u4e0d\u8981\u7b49\u5230\u4ea7\u54c1\u5b9a\u578b\u624d\u505a EMC \u6d4b\u8bd5\uff0c\u5728\u539f\u578b\u9636\u6bb5\u5c31\u5e94\u8be5\u8fdb\u884c\u9884\u6d4b\u8bd5\uff0c\u53ca\u65e9\u53d1\u73b0\u95ee\u9898\u3002<\/p>\n
3.2.2 \u5b9a\u4f4d\u5e72\u6270\u6e90:\u4f7f\u7528\u8fd1\u573a\u63a2\u5934\u548c\u9891\u8c31\u5206\u6790\u4eea\uff0c\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u5e72\u6270\u6e90\u7684\u4f4d\u7f6e\u548c\u9891\u7387\u3002<\/p>\n
3.2.3 \u5206\u6b65\u6574\u6539:\u4e0d\u8981\u4e00\u6b21\u6539\u52a8\u592a\u591a\u5730\u65b9\uff0c\u6bcf\u6b21\u53ea\u6539\u4e00\u4e2a\u53c2\u6570\uff0c\u89c2\u5bdf\u6548\u679c\u3002\u8fd9\u6837\u53ef\u4ee5\u660e\u786e\u6bcf\u4e2a\u6539\u52a8\u7684\u4f5c\u7528\u3002<\/p>\n
3.2.4 \u7559\u6709\u4f59\u91cf:\u4e0d\u8981\u521a\u597d\u538b\u7ebf\u901a\u8fc7\u6d4b\u8bd5\uff0c\u8981\u7559\u6709\u8db3\u591f\u7684\u4f59\u91cf\uff0c\u56e0\u4e3a\u6279\u91cf\u751f\u4ea7\u65f6\u5143\u5668\u4ef6\u53c2\u6570\u4f1a\u6709\u5206\u6563\u6027\u3002<\/p>\n
3.3 \u6807\u51c6\u4e0e\u8ba4\u8bc1<\/h3>\n
\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u5bf9 EMC \u6709\u4e0d\u540c\u7684\u8981\u6c42\u3002<\/p>\n
\u6d88\u8d39\u7535\u5b50\u4ea7\u54c1\u901a\u5e38\u9700\u8981\u7b26\u5408 FCC Part 15\u3001CE \u7b49\u6807\u51c6;\u6c7d\u8f66\u7535\u5b50\u9700\u8981\u7b26\u5408 CISPR 25 \u6807\u51c6;\u533b\u7597\u8bbe\u5907\u9700\u8981\u7b26\u5408 IEC 60601 \u7cfb\u5217\u6807\u51c6\u3002<\/p>\n
\u5728\u8bbe\u8ba1\u4e4b\u521d\u5c31\u8981\u660e\u786e\u76ee\u6807\u5e02\u573a\u7684\u8ba4\u8bc1\u8981\u6c42\uff0c\u907f\u514d\u540e\u671f\u8fd4\u5de5\u3002<\/p>\n
Qi \u6807\u51c6\u672c\u8eab\u4e5f\u5305\u542b\u4e86 EMC \u8981\u6c42\uff0c\u4ea7\u54c1\u8981\u83b7\u5f97 Qi \u8ba4\u8bc1\uff0c\u5fc5\u987b\u901a\u8fc7 WPC \u6307\u5b9a\u5b9e\u9a8c\u5ba4\u7684 EMC \u6d4b\u8bd5\u3002<\/p>\n
\u8fd9\u4e2a\u6d4b\u8bd5\u6bd4\u4e00\u822c\u7684 EMC \u6d4b\u8bd5\u66f4\u4e25\u683c\uff0c\u56e0\u4e3a\u5b83\u8fd8\u8981\u8003\u8651\u4e0e\u624b\u673a\u7b49\u63a5\u6536\u8bbe\u5907\u7684\u517c\u5bb9\u6027\u3002<\/p>\n
4. \u672a\u6765\u53d1\u5c55\u8d8b\u52bf<\/h2>\n
\u65e0\u7ebf\u5145\u7535\u6280\u672f\u8fd8\u5728\u5feb\u901f\u53d1\u5c55\u4e2d\u3002<\/p>\n
\u529f\u7387\u8d8a\u6765\u8d8a\u5927\uff0c\u4ece\u6700\u521d\u7684 5W \u53d1\u5c55\u5230\u73b0\u5728\u7684 50W \u751a\u81f3\u66f4\u9ad8;\u8ddd\u79bb\u8d8a\u6765\u8d8a\u8fdc\uff0c\u4ece\u7d27\u8d34\u5145\u7535\u53d1\u5c55\u5230\u51e0\u5398\u7c73\u7684\u81ea\u7531\u6446\u653e;\u5e94\u7528\u573a\u666f\u8d8a\u6765\u8d8a\u5e7f\uff0c\u4ece\u624b\u673a\u6269\u5c55\u5230\u7535\u52a8\u6c7d\u8f66\u3001\u65e0\u4eba\u673a\u3001\u673a\u5668\u4eba\u7b49\u9886\u57df\u3002<\/p>\n
\u4f46\u529f\u7387\u8d8a\u5927\u3001\u8ddd\u79bb\u8d8a\u8fdc\uff0cEMC \u95ee\u9898\u5c31\u8d8a\u7a81\u51fa\u3002\u8fd9\u9700\u8981\u6211\u4eec\u5728\u7535\u8def\u8bbe\u8ba1\u3001\u6750\u6599\u9009\u62e9\u3001\u7b97\u6cd5\u4f18\u5316\u7b49\u591a\u65b9\u9762\u4e0d\u65ad\u521b\u65b0\u3002<\/p>\n
\u6bd4\u5982\u91c7\u7528\u81ea\u9002\u5e94\u9891\u7387\u8ddf\u8e2a\u6280\u672f\uff0c\u5b9e\u65f6\u76d1\u6d4b EMI \u6c34\u5e73\u5e76\u52a8\u6001\u8c03\u6574\u5de5\u4f5c\u53c2\u6570;\u91c7\u7528\u6709\u6e90 EMI \u6291\u5236\u6280\u672f\uff0c\u4e3b\u52a8\u6ce8\u5165\u53cd\u76f8\u5e72\u6270\u4fe1\u53f7\u6765\u62b5\u6d88 EMI;\u91c7\u7528\u65b0\u578b\u78c1\u6027\u6750\u6599\u548c\u5c4f\u853d\u6750\u6599\uff0c\u63d0\u9ad8\u78c1\u573a\u7ea6\u675f\u80fd\u529b\u3002<\/p>\n
\u4f5c\u4e3a\u5d4c\u5165\u5f0f\u5de5\u7a0b\u5e08\uff0c\u6211\u4eec\u4e0d\u4ec5\u8981\u5173\u6ce8\u529f\u80fd\u5b9e\u73b0\uff0c\u66f4\u8981\u91cd\u89c6 EMC \u8bbe\u8ba1\u3002<\/p>\n
\u4e00\u4e2a\u597d\u7684\u4ea7\u54c1\uff0c\u4e0d\u4ec5\u8981\u80fd\u6b63\u5e38\u5de5\u4f5c\uff0c\u8fd8\u8981\u80fd\u5728\u590d\u6742\u7684\u7535\u78c1\u73af\u5883\u4e2d\u7a33\u5b9a\u53ef\u9760\u5730\u5de5\u4f5c\uff0c\u540c\u65f6\u4e0d\u5bf9\u5176\u4ed6\u8bbe\u5907\u9020\u6210\u5e72\u6270\u3002<\/p>\n
\u8fd9\u9700\u8981\u6211\u4eec\u5728\u7406\u8bba\u5b66\u4e60\u548c\u5b9e\u8df5\u7ecf\u9a8c\u4e4b\u95f4\u4e0d\u65ad\u79ef\u7d2f\uff0c\u5728\u6bcf\u4e00\u4e2a\u9879\u76ee\u4e2d\u603b\u7ed3\u6559\u8bad\uff0c\u624d\u80fd\u9010\u6b65\u63d0\u9ad8\u8bbe\u8ba1\u6c34\u5e73\u3002<\/p>\n
\u65e0\u7ebf\u5145\u7535\u548c EMC \u6280\u672f\u90fd\u662f\u975e\u5e38\u5b9e\u8df5\u6027\u7684\u9886\u57df\uff0c\u7eb8\u4e0a\u8c08\u5175\u8fdc\u8fdc\u4e0d\u591f\uff0c\u53ea\u6709\u771f\u6b63\u52a8\u624b\u505a\u8fc7\u9879\u76ee\uff0c\u7ecf\u5386\u8fc7\u6d4b\u8bd5\u5931\u8d25\u7684\u75db\u82e6\uff0c\u624d\u80fd\u6df1\u523b\u7406\u89e3\u5176\u4e2d\u7684\u95e8\u9053\u3002<\/p>\n
\u5e0c\u671b\u6211\u7684\u8fd9\u4e9b\u7ecf\u9a8c\u5206\u4eab\u80fd\u5bf9\u5927\u5bb6\u6709\u6240\u5e2e\u52a9\uff0c\u4e5f\u6b22\u8fce\u540c\u884c\u4eec\u4e00\u8d77\u4ea4\u6d41\u63a2\u8ba8\u3002<\/p>\n
\u66f4\u591a\u7f16\u7a0b\u5b66\u4e60\u8d44\u6e90<\/strong><\/p>\n