摘要
电流控制型开关变换器由于需要双环控制,增加了电路设计和分析的难度,控制环变得不稳定以及抗干扰能力差。笔者介绍的迟滞开关功率转换器LM3485,旨在实现一种能够满足大量不同降压要求而无须进行补偿的开关调整器解决方案。迟滞PFET降压控制器的引入,提高了稳定性和抗干扰能力。预计在PC、PDA等电源系统中应用前景广阔。
Double-loop control is required in the current-controlled switch regulators, which leads to more difficulties in circuit design and analysis, and makes the control loop instable and easy to be interfered. LM3485 Hysteretic Switch Power Regulator can solve the problem, which satisfies the different requirements under different voltages without any compensation. Hysteretic PFET step-down controller helps to increase stability and ability to anti-interference. It can be used in power system such as PC and PDA.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2002年第10期38-40,共3页
Electronic Components And Materials
