TOPSwitch集成电路在DC_DC电源设计中的应用.pdf

33 2 Vol. 33, 2 2003 4 M icroelectr onics Apr. 2003 : 1004-3365(2003) 02-0169-04 / TOPSwitch DC DC 1, 2 1 1 余海生 , 蔡建荣, 刘　健 ( 1. , 400060; 2. , 400060) :　文章介绍了PWM/ MOSFET 二合一的TOPSwitch 系列集成电路及其在DC/ DC 电源 设计中的 用,还介绍了基本反馈方式的 / 拓扑结构及其改进措施, 并对由 集 DC DC T OPSwitch 成电路构成的DC/ DC 电源进行了抗中子实验。 : T OPSwitch; DC/ DC 电源; 集成控制器; 抗辐射电路; 磁隔离 : 　 43 : T A Application of TOPSwitch Integrated Circui t in DC/ DC Power Supply 1, 2 1 1 YU Hai-sheng , CAI Jian-rong , LIU Jian ( 1. - , , 400060, . . ; Sichuan Institute of Solid State Circuits China Electronics Technology Group Corporation Chongqing P R China 2. , 400060, . . ) N ational L aboratory of A nalog Integrated Circuits Chongqing P R China Abstract: The T OPSwitch IC, into which PWM and M OSFET are integrated, and its application in DC/ DC power supply are described in the paper DC DC topologies of the basic feedback mode and methods for its im-. / provement are also presented. T he DC/ DC power supply fabricated using TOPSwitch IC is exposed to neutron ir- radiation to test its radiation hardness. ; / ; ; - ; Key words: TOPSwitch DC DC power supply Integrated controller Radiation hardened IC Magnetic isola- tion EEACC: 1210 3 4 1　引　言