电子器件2001，Vol.24Issue(1)：1-5,5.
集成的BiCMOS DC/DC开关电源控制器输出驱动电器的低功耗设计
Low Power Design for the Output-Driver Circuit of Integrated BiCMOS DC/DC Switching Regulator Controller
摘要
Abstract
In order to switching the power transistor on or off quickly in DC/DC switching regulator, it is necessary to design a special output-driver circuit. For the lower power of the whole system, the switching regulator can use the configuration of synchronous rectification［1］. This circuit needs a driver circuit with voltage self-boost. This paper presents, firstly, a output-driver circuit with voltage self-boost in BiCMOS process, then on the basis of the previous circuit, this paper presents a better circuit using the configuration of the current-source and current-sink in series. The better circuit not only reduces the power of the circuit, but also has the protect function by eliminating the phenomenon of transient short-circuit in CMOS circuits. The result of simulation using HSPICE demonstrated that the better circuit′s power reduces about 11.5% and avoids the phenomenon of transient short-circuit in CMOS circuits when the input voltage is equal to 10 V, the interior voltage of controller of switching regulator, ［VL］,is at 5 V, the frequency of switch is at 200 kHz.关键词
直流/直流/自举电路/开关电源/低功耗分类
信息技术与安全科学引用本文复制引用
王海永,李永明,陈弘毅..集成的BiCMOS DC/DC开关电源控制器输出驱动电器的低功耗设计[J].电子器件,2001,24(1):1-5,5.
