http ://www.cicmag 一种高效率快速启动四相时钟电荷泵
黄佳兴1，李天望1,2
(1.湘潭大学;2.湘潭大学物理与光电学院)摘要：设计了一种应用于低压，高效率快速启动四相时钟电荷泵。该电荷泵利用少量辅助晶体管，在启动阶段将电荷注入升压电容中，降低了电荷泵启动时间。设计了一种新型四相时钟电路，降低了时钟驱动功耗，提高了效率。在1V 的电源电压,0.13um 工艺下，仿真结果显示，在四级结构下，四相时钟电荷泵的效率高达81%，相比传统四相时钟电荷泵结构，启动时间减少了10%。
关键词：四相时钟电荷泵；效率；启动时间
中图分类号:T N 43文献标识码: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
