<!-- Bootstrap core CSS --> <link href="/css/www-style.css" rel="stylesheet"> <link href="/css/bootstrap.css" rel="stylesheet"> <link href="/css/newsletter.css" rel="stylesheet"> <link href="/css/alfontawesome-all.css" rel="stylesheet"> <!-- Custom fonts for this template --> <section> <div class="key-container"> <div class="cus-content-subscribe"> <div class="row no-gutters"> <div class=" col-md-12"> <div class="page-header"> <a class="cus-btn btn-sm" href="https://www.richtek.com/My Richtek/Newsletters.aspx?sc_lang=zh-TW"><i class="fas fa-envelope"></i>&nbsp;&nbsp;訂閱立錡電子報</a> </div> </div> </div> </div> </div> <div class="key-container pb-5"> <!-- Title start --> <div class="cus-content"> <div class="row no-gutters "> <div class="col-md-12 "> <div class="page-header"> <h1 class="font-weight-bold">電流感測放大器設計指南：PoE、USB PD、桌上型電腦與伺服器應用</h1> <i class="far fa-calendar-alt date-i"></i> <span class="ml-2 date">2025 年 12 月 26 日 | 電子報 55 期</span> </div> </div> </div> </div> <!-- Content End --> <div class="cus-content"> <div class="row no-gutters "> <div class="col-md-12 mb-20 text-center"> <img class="img-center " style="max-width:600px;" alt="Current Sense Amplifier Design Considerations and Examples" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_image001.jpg"> </div> <div class="col-md-12 mb-40"> <p>精確的電流監控不僅是電路保護的基礎，更是提升系統效能與能源管理效率的關鍵。透過電流感測技術，系統能即時掌握功耗變化，實現過電流保護、動態效率調整與遠端監控等功能。電流感測放大器依架構可分為兩大類：</p> <ul style="line-height:2;"> <li><b>數位型</b>：可輸出完整的電壓、電流與功率數據，並支援 I²C、SMBus 介面，特別適合待機管理與資料分析需求。 </li> <li><b>類比型</b>：反應速度快、電路簡潔，適合即時回饋與保護應用。 </li> </ul> </div> <div class="col-md-12 "> <p>為滿足多樣化應用需求，立錡科技推出多款高精度電流感測放大器，涵蓋數位型 RTQ6132 / RTQ6134 / RTQ6136、<a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6059&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RTQ6059 </a>、<a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6053/RTQ6053B&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RTQ6053 </a> / <a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6056&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RTQ6056 </a>，以及類比型<a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6060&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RTQ6060A/RTQ6060B </a>、<a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6050/RTQ6052&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RTQ6050/RTQ6052 </a>等產品系列，提供廣泛電壓範圍與多種精度等級，協助系統設計人員快速打造最合適的電源監控解決方案。</p> </div> <div class="col-md-12 mb-40 text-center"> <p><b>應用範例</b></p> </div> <div class="col-md-12"> <div class=" row justify-content-center"> <table class="table " style="width: 800px;"> <thead class="thead-light"> <tr> <th scope="col" style="padding: 5px 5px;">應用</th> <th scope="col">說明</th> </tr> </thead> <tbody> <tr> <th scope="row">伺服器</th> <td>在數據中心應用中，電流感測放大器用於電源監控、能效優化與遠端診斷。RTQ6136 專為 48V 系統設計，具 75V AMR 共模電壓能力，滿足高可靠度電源監控需求。</td> </tr> <tr> <th scope="row">USB Power Delivery</th> <td>透過精確電流監控，確保充電安全並提升效率。<a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6059&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RTQ6059 </a> 具兩個位址選擇腳位，可設定多達 16 組不同位址，適用於單一 Embedded Controller，管理多個 USB 埠的多埠 PD 系統。</td> </tr> <tr> <th scope="row">PoE 以太網供電</th> <td>電流感測可判斷 PD 類型與功率需求，動態分配總功率以防止多 PD 系統過載。可選用具低壓檢測功能的 <a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6056&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RTQ6056 </a>，配置於低壓端監控 PoE 輸入並協助系統控制。</td> </tr> <tr> <th scope="row">桌上型電腦</th> <td>即時監控輸入電流以提升系統效能與可靠性，並降低設計風險。<a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6060&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RTQ6060 </a> 可作為主要電源監控元件，快速回報電流變化給 Embedded Controller，讓系統能即時調整運作參數。</td> </tr> </tbody> </table> </div> </div> <div class="col-md-12 mb-40"> <p>電流感測技術已成為電源管理與系統設計中不可或缺的一環，立錡提供完整的電流感測放大器產品組合，打造更可靠系統。</p> <div class="btn-block pb-4 pt-3"> <a href="https://www.richtek.com/Design%20Support/Technical%20Document/AN091?&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue54TW&sc_lang=zh-TW" target="_blank" class="btn-sm btn-primary py-2 px-3">應用筆記 <i class="fas fa-arrow-right pl-2"></i> </a> </div> </div> </div> </div> <div class="cus-content"> <div class="row no-gutters"> <div class="col-md-12 pt-3"> <div class="new-product"> <h3 class="font-weight-bold">特色產品</h3> <p>快來看看有什麼新東西是你感興趣的</p> </div> </div> </div> <!-- Product start --> <div class="col-md-12"> <p><b>數位型</b></p> </div> <div class="row no-gutters"> <div class="col-md-12 text-center"> <table class="table table-hover table-bordered table-sm"> <thead class="thead-dark"> <tr> <th scope="col" style="min-width: 150px">Product Number</th> <th scope="col">Common Mode Voltage Range</th> <th scope="col">Maximum Offset</th> <th scope="col">Maximum Gain Error</th> <th scope="col">Input Sense Range</th> <th scope="col">Package(s)</th> <th scope="col" style="max-width:80px;">Buy Online</th> </tr> </thead> <tbody> <tr> <th scope="row" style="padding-top:8px;">RTQ6136 </th> <td>0V to 60V</td> <td>4µV</td> <td>0.1%</td> <td>Programmable</td> <td>TWCSP-8P, TSOT-28</td> <td><a href="https://forms.office.com/Pages/ResponsePage.aspx?id=6GOM0O6GNE6h5UQzg3P0seMVen-xb9hAr_ZA0LheCTNUOUJXOTZSRVZNSFlGU0xIMTZJMzRXSk9IRC4u" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-email.png" width="35px;" style="width: 35px;"></a></td> </tr> <tr> <th scope="row" style="padding-top:8px;">RTQ6134 </th> <td>0V to 60V</td> <td>80µV</td> <td>0.5%</td> <td>Programmable</td> <td>TWCSP-8P</td> <td><a href="https://forms.office.com/Pages/ResponsePage.aspx?id=6GOM0O6GNE6h5UQzg3P0seMVen-xb9hAr_ZA0LheCTNUOUJXOTZSRVZNSFlGU0xIMTZJMzRXSk9IRC4u" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-email.png" width="35px;" style="width: 35px;"></a></td> </tr> <tr> <th scope="row" style="padding-top:8px;">RTQ6132 </th> <td>0V to 60V</td> <td>40µV</td> <td>0.3%</td> <td>Programmable</td> <td>TSOT-28</td> <td><a href="https://forms.office.com/Pages/ResponsePage.aspx?id=6GOM0O6GNE6h5UQzg3P0seMVen-xb9hAr_ZA0LheCTNUOUJXOTZSRVZNSFlGU0xIMTZJMzRXSk9IRC4u" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-email.png" width="35px;" style="width: 35px;"></a></td> </tr> <tr> <th scope="row" style="padding-top:8px;"><a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6059&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;">RTQ6059</a> <a href="https://www.richtek.com/SaveDownload.aspx?specid=RTQ6059&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="padding:0px;text-decoration:none;display:inline-block"><img align="middle" style="padding-bottom: 3px;" alt="download datasheet" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-download-2.png" width="30px;" height="30px"/></a> </th> <td>0V to 32V</td> <td>50µV</td> <td>0.3%</td> <td>Programmable</td> <td>TSOT-23-8, MSOP-10</td> <td><a href="https://www.digikey.com/en/products/result?s=N4IgTCBcDaIEoBUCKA2ADAVgJwgLoF8g" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-cart.png" width="35px;" style="width: 35px;"></a></td> </tr> <tr> <th scope="row" style="padding-top:8px;"><a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6056&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;">RTQ6056</a> <a href="https://www.richtek.com/SaveDownload.aspx?specid=RTQ6056&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="padding:0px;text-decoration:none;display:inline-block"><img align="middle" style="padding-bottom: 3px;" alt="download datasheet" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-download-2.png" width="30px;" height="30px"/></a> </th> <td>0V to 36V</td> <td>10µV</td> <td>0.12%</td> <td>Fixed</td> <td>MSOP-10</td> <td><a href="https://www.digikey.com/en/products/result?s=N4IgTCBcDaIEoBUCKA2ADAVhSAugXyA" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-cart.png" width="35px;" style="width: 35px;"></a></td> </tr> <tr> <th scope="row" style="padding-top:8px;"><a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6053/RTQ6053B&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;">RTQ6053</a> <a href="https://www.richtek.com/SaveDownload.aspx?specid=RTQ6053/RTQ6053B&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="padding:0px;text-decoration:none;display:inline-block"><img align="middle" style="padding-bottom: 3px;" alt="download datasheet" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-download-2.png" width="30px;" height="30px"/></a> </th> <td>0V to 36V</td> <td>25µV</td> <td>0.3%</td> <td>Fixed</td> <td>VQFN-16L</td> <td><a href="https://www.digikey.com/en/products/result?s=N4IgTCBcDaIEoBUCKA2ADAVgMwgLoF8g" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-cart.png" width="35px;" style="width: 35px;"></a></td> </tr> </tbody> </table> </div> </div> <!-- Digital CSA 0V to 32V start --> <div class="col-md-12 mb-40"> <p><b>類比型</b></p> </div> <div class="row no-gutters"> <div class="col-md-12 text-center"> <table class="table table-hover table-bordered table-sm"> <thead class="thead-dark"> <tr> <th scope="col" style="min-width: 155px">Product Number</th> <th scope="col">Common Mode Voltage Range</th> <th scope="col">Maximum Offset</th> <th scope="col">Maximum Gain Error</th> <th scope="col">Available Gain</th> <th scope="col">Package(s)</th> <th scope="col" style="max-width:80px;">Buy Online</th> </tr> </thead> <tbody> <tr> <th scope="row" style="padding-top:8px;"><a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6060&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;">RTQ6060A</a> <a href="https://www.richtek.com/SaveDownload.aspx?specid=RTQ6060&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="padding:0px;text-decoration:none;display:inline-block"><img align="middle" style="padding-bottom: 3px;" alt="download datasheet" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-download-2.png" width="30px;" height="30px"/></a> </th> <td>0V to 36V</td> <td>±35µV~±100µV</td> <td>±0.4%</td> <td>50V/V、75V/V、100V/V、200V/V、500V/V、1000V/V</td> <td>SC-70-6</td> <td><a href="https://forms.office.com/Pages/ResponsePage.aspx?id=6GOM0O6GNE6h5UQzg3P0seMVen-xb9hAr_ZA0LheCTNUOUJXOTZSRVZNSFlGU0xIMTZJMzRXSk9IRC4u" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-email.png" width="35px;" style="width: 35px;"></a></td> </tr> <tr> <th scope="row" style="padding-top:8px;"><a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6060&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;">RTQ6060B</a> <a href="https://www.richtek.com/SaveDownload.aspx?specid=RTQ6060&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="padding:0px;text-decoration:none;display:inline-block"><img align="middle" style="padding-bottom: 3px;" alt="download datasheet" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-download-2.png" width="30px;" height="30px"/></a> </th> <td>0V to 36V</td> <td>±150µV</td> <td>±0.8%</td> <td>50V/V、75V/V、100V/V、200V/V、500V/V、1000V/V</td> <td>SC-70-6</td> <td><a href="https://forms.office.com/Pages/ResponsePage.aspx?id=6GOM0O6GNE6h5UQzg3P0seMVen-xb9hAr_ZA0LheCTNUOUJXOTZSRVZNSFlGU0xIMTZJMzRXSk9IRC4u" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-email.png" width="35px;" style="width: 35px;"></a></td> </tr> <tr> <th scope="row" style="padding-top:8px;"><a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6050/RTQ6052&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;">RTQ6052</a> <a href="https://www.richtek.com/SaveDownload.aspx?specid=RTQ6050/RTQ6052&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="padding:0px;text-decoration:none;display:inline-block"><img align="middle" style="padding-bottom: 3px;" alt="download datasheet" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-download-2.png" width="30px;" height="30px"/></a> </th> <td>2V to 80V</td> <td>±2.5mV</td> <td>±2%</td> <td>100V/V</td> <td>MSOP-8, SOP-8</td> <td><a href="https://www.digikey.com/en/products/result?s=N4IgTCBcDaIEoBUCKA2ADAVggXQL5A" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-cart.png" width="35px;" style="width: 35px;"></a></td> </tr> <tr> <th scope="row" style="padding-top:8px;"><a href="https://www.richtek.com/RedirectToProduct?specid=RTQ6050/RTQ6052&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;">RTQ6050</a> <a href="https://www.richtek.com/SaveDownload.aspx?specid=RTQ6050/RTQ6052&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="padding:0px;text-decoration:none;display:inline-block"><img align="middle" style="padding-bottom: 3px;" alt="download datasheet" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-download-2.png" width="30px;" height="30px"/></a> </th> <td>2V to 80V</td> <td>±2.5mV</td> <td>±2%</td> <td>20V/V</td> <td>MSOP-8, SOP-8</td> <td><a href="https://www.digikey.com/en/products/result?s=N4IgTCBcDaIEoBUCKA2ADAVjSAugXyA" target="_blank"><img alt="Buy-on-Line" border="0" src="/content/dam/richtek-eds/resources/tech-insights/news/newsletter-issue-55/html-images/zh-tw_ic-cart.png" width="35px;" style="width: 35px;"></a></td> </tr> </tbody> </table> </div> </div> <div class="col-md-12 "> <p>針對消費型應用，我們也提供<a href="https://www.richtek.com/RedirectToProduct?specid=RT6050/RT6052&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RT6050 </a>、<a href="https://www.richtek.com/RedirectToProduct?specid=RT6050/RT6052&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RT6052 </a>、<a href="https://www.richtek.com/RedirectToProduct?specid=RT6053&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RT6053 </a>與<a href="https://www.richtek.com/RedirectToProduct?specid=RT6056&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW" target="_blank" style="text-decoration: none; color: #37a6d9;font-size: 1.1rem;"> RT6056 </a>作選擇。</p> </div> <!-- Content End --> <!-- Keywords start --> <div class="tag-content"> <div class="row no-gutters"> <div class="col-md-12 mb-40"> <div class="new-product"> <p>想獲得更多產品與設計相關知識？歡迎您點此<a class="link" href="https://www.richtek.com/My Richtek/Newsletters.aspx?sc_lang=zh-TW" target="_blank"> 訂閱立錡電子報</a>。</p> </div> </div> </div> <div class="row no-gutters align-items-start"> <div class="col-12"> <a class="badge btn-tag" href="https://www.richtek.com/applications/communication-enterprise/data-center?&ActiveTab=Data Center&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW">數據中心</a> <a class="badge btn-tag" href="https://www.richtek.com/applications/automotive?&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW">汽車 & 電動車應用</a> <a class="badge btn-tag" href="https://www.richtek.com/Products/Operational%20Amplifier?&utm_source=Newsletter&utm_medium=RTWWW&utm_campaign=Issue55TW&sc_lang=zh-TW">放大器</a> </div> </div> </div> </div> </div> </section>

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