CAJ | 학술논문

介绍了一种单芯片DC-DC转换器IC设计与电路实现,其特点是宽负载电流条件下具有较高效率.芯片的设计和仿真基于上华0.6 μm双阱、混合信号CMOS工艺.芯片的工作电压范围为2～5 V,可以使用于一般的电池供电设备.对提高芯片效率的方法以及效果进行了详细的讨论分析.仿真结果表明,芯片可以产生稳定的1.8 V输出电压,并提供大于500mA的输出电流,而纹波电压却小于5 mV.芯片可以获得93.8%的最大转换效率,而且在5～500 mA的负载电流范围内,效率始终高于86.2%.
개소료일충단심편DC-DC전환기IC설계여전로실현,기특점시관부재전류조건하구유교고효솔.심편적설계화방진기우상화0.6 μm쌍정、혼합신호CMOS공예.심편적공작전압범위위2～5 V,가이사용우일반적전지공전설비.대제고심편효솔적방법이급효과진행료상세적토론분석.방진결과표명,심편가이산생은정적1.8 V수출전압,병제공대우500mA적수출전류,이문파전압각소우5 mV.심편가이획득93.8%적최대전환효솔,이차재5～500 mA적부재전류범위내,효솔시종고우86.2%.
This paper presents an integrated circuit design and implementation of a monolithic DC-IX；con-verter to achieve high efficiency over wide loading conditions.The converter is designed and simulated u-sing a 0.6 m twin well mixed-signal CMOS process for a supply voltage range of 2～5 V,which is tom-patible with portable battery-operated devices.The method to improve the efficiency is discussed.Simula-tion results show that the converter generates an output voltage of 1.8 V while delivering up to 500mA load current with a maximum ripple of 5 mV.The converter exhibits a maximum efficiency of 93.8%and an overall efficiency above 86.2% with the load current from 5 mA to 500 mA.