為便攜式設(shè)備可靠供電開發(fā)拓寬USB功能

摘要：為保證數(shù)字化便攜式設(shè)備可靠運(yùn)行, 本文主要對(duì)USB接口電源功能的開發(fā)與USB集線器、功率、外設(shè)等技術(shù)支持問題作了詳述.并著重對(duì)應(yīng)用USB電源功能獲得便攜式設(shè)備所需各類電源及對(duì)鋰電池(Li+)、鎳氫電池(NIMH)充電技術(shù)各類方案作分析比較. 敘詞：便攜式設(shè)備 USB接口電源 集線器 充電控制器 系統(tǒng)負(fù)載 Abstract：The paper stated the technical question which functional developing of USB interface power were developed and Hub,power,peripheral etc of USB,and the kind of all power which needing for the portable device were getted by function of USB power and kind of all plan of LI+&NIMH charging technology were analyed and compared. Keyword：portable device interface power of USB hub contraller of charging load of system