一种大电流高精度双极集成稳压器  

A Large-Current and High-Precision Bipolar Integrated Voltage Regulator

作　　者：严纲[1] 

机构地区：[1]中国电子科技集团公司第二十四研究所,重庆400060

出　　处：《微电子学》2003年第5期447-449,452,共4页Microelectronics

摘　　要：　介绍了一种大电流高精度双极性集成稳压器的设计原理及电路结构。该输出集成稳压器由基准电压源、比较放大器和调整管等单元组成,其工作原理为负稳压、正跟踪。该电路采用硅双极介质隔离功率IC工艺和芯片级电阻修调技术制作,具有±500mA的大输出电流和-10～+10V±50mV的高精度双极性输出电压,以及小于10mV的高正、负输出电压平衡度。A large current and highprecision bipolar integrated voltage regulator is presented Its design principle and circuit structure are described The integrated voltage regulator is comprised of a startup circuit, constant current source, reference voltage source, comparators, regulating transistors, sampling circuits and protection circuits Its principle of operation is negative regulating and positive following Fabricated in silicon bipolar power IC process with dielectric isolation and waferlevel resistor trimming, the device has achieved a large output current from -500 mA to +500 mA, a highprecision bipolar output voltage from -10 V to +10 V ±50 mV, and a high balance between positive and negative output voltage, which is less than 10 mV

关 键 词：稳压器 设计原理 电路结构 双极性输出电压 比较放大器 调整管 

分 类 号：TM44[电气工程—电器]