有刷電機(jī)與無(wú)刷電機(jī)優(yōu)劣：<\/span><\/strong>
| 有刷電機(jī)<\/span> <\/td> | 無(wú)刷電機(jī)<\/span> <\/td> <\/tr> - <\/span>摩擦大，損耗大<\/span><\/span> <\/li> <\/ul> <\/td>
- <\/span>無(wú)電刷，<\/span>低干擾 <\/span><\/span><\/span><\/span><\/span> <\/li> <\/ul> <\/td> <\/tr>
- <\/span>發(fā)熱大，壽命短<\/span><\/span><\/span> <\/li> <\/ul> <\/td>
- <\/span>噪音低，<\/span><\/span>運(yùn)轉(zhuǎn)順暢<\/span><\/span><\/span> <\/span><\/span> <\/li> <\/ul> <\/td> <\/tr>
- <\/span>效率低，輸出功率小<\/span><\/span><\/span> <\/li> <\/ul> <\/td>
- <\/span>壽命長(zhǎng)，<\/span><\/span>低維護(hù)成本<\/span><\/span><\/span><\/span><\/span> <\/li> <\/ul> <\/td> <\/tr> <\/tbody> <\/table><\/span>
電吹風(fēng)無(wú)刷驅(qū)動(dòng)方案：<\/strong><\/strong>
<\/span> <\/p>
<\/p> - 該方案針對(duì)電吹風(fēng)開(kāi)發(fā)的無(wú)霍爾控制， 通過(guò)單片機(jī)電勢(shì)<\/span>零采樣，軟件處理后，輸出方波PWM至IPM，從而驅(qū)動(dòng)電機(jī)<\/span>工作。現(xiàn)逐步替代傳統(tǒng)電機(jī)。<\/span> <\/li> <\/ul>
<\/p> 方案特點(diǎn)：<\/strong><\/span> <\/p>
<\/p> - <\/span>無(wú)刷電機(jī)的電吹風(fēng)電機(jī)用電子換向替代傳統(tǒng)換向，性能可靠<\/span>永不磨損，故障率低，<\/span> <\/li>
- <\/span>壽命比普通的風(fēng)機(jī)提高10-30倍.<\/span> <\/li>
- <\/span>外置驅(qū)動(dòng)的直流無(wú)刷屬靜態(tài)電機(jī),空載電流小;<\/span> <\/li>
- <\/span>輸出功率高;<\/span> <\/li>
- <\/span>外置驅(qū)動(dòng)的無(wú)刷電機(jī)可以做到體積很小,更方便整體設(shè)計(jì).<\/span> <\/li> <\/ul>
<\/strong><\/span> <\/p> 原理圖:<\/strong><\/span> <\/p>
<\/strong><\/span> <\/p> 技術(shù)參數(shù)：<\/strong><\/span> <\/p> 工作電壓：100V-250V<\/span> <\/p> 過(guò)流電流：2.1A<\/span> <\/p> **轉(zhuǎn)速：21000RPM<\/span> <\/p> 堵轉(zhuǎn)時(shí)間：10MS<\/span> <\/p>
<\/p> 工作檔位**/低檔<\/span><\/strong> <\/p> <\/span><\/strong> <\/p> | 檔位<\/span> <\/td> | **<\/span> <\/td> | **加速<\/span> <\/td> | 低檔<\/span> <\/td> | 低檔加速<\/span> <\/td> <\/tr> | 轉(zhuǎn)速<\/span> <\/td> | 18000RPM<\/span> <\/td> | 21000RPM<\/span> <\/td> | 14000RPM<\/span> <\/td> | 16000RPM<\/span> <\/td> <\/tr> | 功率<\/span> <\/td> | 106W<\/span> <\/td> | 140W<\/span> <\/td> | 55W<\/span> <\/td> | 65W<\/span> <\/td> <\/tr> <\/tbody> <\/table>
<\/strong> <\/div>
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