http ://www.cicmag 一種高效率快速啟動四相時鐘電荷泵
黃佳興1，李天望1,2
(1.湘潭大學;2.湘潭大學物理與光電學院)摘要：設計了一種應用于低壓，高效率快速啟動四相時鐘電荷泵。該電荷泵利用少量輔助晶體管，在啟動階段將電荷注入升壓電容中，降低了電荷泵啟動時間。設計了一種新型四相時鐘電路，降低了時鐘驅動功耗，提高了效率。在1V 的電源電壓,0.13um 工藝下，仿真結果顯示，在四級結構下，四相時鐘電荷泵的效率高達81%，相比傳統四相時鐘電荷泵結構，啟動時間減少了10%。
關鍵詞：四相時鐘電荷泵；效率；啟動時間
中圖分類號:T N 43文獻標識碼:A
A high efficiency quick start four-pha clock charge pump
H U A N G Ji a-xi ng 1,LITi an-wang 1,2
(1.X i
angt an U ni ver s i t y ;2.Col l ege ofphysi cs and opt oel ect r oni c engi neer i ng i n X i angt an U ni ver s i t y )Abstract :A hi
gh ef f i ci ency f our -phas e cl ock char ge pum p f or l ow pr ess ur e i s des i gned.The char ge pum p us e a s m al lnum ber ofauxi l i ar y t r ans i s t or s t o i nj ectt he char ge i nt o t he boos t er capaci t or dur i ng t he s t ar t -up s t age,whi ch r educes t he s t ar t -up t i m e oft he char ge pum p.A novelf our -phas e cl ock ci r cui ti s des i gned t o r educe t he power con-s um pt i on and i m pr ove t he ef f i ci ency.U nder t he 1V power s uppl y vol t age and 0.13um pr oces s ,t he s i m ul at i on r es ul t s s how t hatundert he f our -s t age st r uct ur e,t he ef f i ci ency oft he f our -phas e cl ock char ge pum p i s as hi gh as 81%.Com -par ed wi t h t he t r adi t i onalf our -phas e cl ock char ge pum p st r uct ur e,t he s t ar t -up t i m e i s r educed by 10%.
Key words :f
our -phas e cl ock char ge pum p;ef f i ci ency;t he st ar t -up t i m e 41
