電源管理是連接的關(guān)鍵

　　隨著網(wǎng)絡(luò)連接性向越來(lái)越多的設(shè)備普及，高速數(shù)據(jù)和高速電源的能力至關(guān)重要。動(dòng)態(tài)電源的控制，特別是新的低電壓工作模式，要求設(shè)備對(duì)其總電源進(jìn)行交互控制。這包括充電器和DC-DC轉(zhuǎn)換器的多個(gè)功率電平，當(dāng)聯(lián)網(wǎng)接口被使用或閑置時(shí)。

　　將IEEE 802.3標(biāo)準(zhǔn)納入設(shè)計(jì)中，不僅影響了數(shù)據(jù)頭的設(shè)計(jì)，而且影響了整個(gè)設(shè)計(jì)，以處理峰值功率管理。本文將研究控制器集成電路和外圍設(shè)備，用于將現(xiàn)有設(shè)計(jì)改造為這些新標(biāo)準(zhǔn)。這些電源解決方案存在于嵌入式設(shè)計(jì)和系統(tǒng)級(jí)。

　　Need for power management

　　Networking products， unlike most computing equipment， fall into the infrastructure category. This means that the products and capabilities need to be accessible not only on a 24/7 basis but also in all locations. This need for 24/7 availability started when the utilization of the resources was also on a 24/7 basis. As computing has increased in speed and data rates have similarly risen， the networking devices no longer see a continuous flow of traffic. This packet-traffic-based flow impacts both the peak power utilization of the PHY for the network connections， as well as the baseline power response of the systems.