MAX471在限流稳压电源中的应用  

Application of MAX471 in voltage regulator with current-limiting

作　　者：付国红[1] 何继善[1] 熊彬[1] 

机构地区：[1]中南大学信息物理工程学院,长沙410083

出　　处：《桂林工学院学报》2006年第4期572-574,共3页Journal of Guilin University of Technology

基　　金：湖南省自然科学基金资助项目(05JJ30074)

摘　　要：改进了某井下物探仪器的电源电路,采用MAX471进行电流取样,可以显著降低电流取样引起的压降,用P型大功率MOSFET替代原电路中的限流管和电源电压调整管,设计成功一种新型超低压差限流稳压电路,提高了电源效率,取得了很好的实际应用效果.A new design scheme, with the sample current circuit by the use of MAX471 and regulate component of P type MOSFET, is presented in this paper. With the use of MAX471 and ultra low on-resistance components P-MOSFET, the new power circuit results in a very low drop-out voltage, and conversion efficiency is very high, presenting a very good application future.

关 键 词：电流传感放大器 MOSFET 超低压差 

分 类 号：TN86[电子电信—信息与通信工程]