摘要
电流检测是采用电流模控制方案的DC-DC调整器中最重要的技术之一。本文首先列举了目前较为常用的几种典型电流检测电路,同时对它们的优、缺点进行了分析,最后给出了一种改进型的电流检测电路。改进后的检测电路能够对功率管中的电流进行精确的检测,同时该检测电路非常适合在集成电路中使用。
Current sensing is one of the most important functions in current-mode control DC-DC converters. This paper presents three typical current sensing techniques in DC-DC converters, the advantages and disadvantages of the different current sensing techniques are analyzed.A new scheme for increasing the accuracy of current sensing is introduced.The new scheme senses the inductor current accurately, it enjoys the benefits of being integratable, accurate and lossless.
出处
《电子与封装》
2005年第6期23-25,共3页
Electronics & Packaging
