西安电子科技大学学报（自然科学版）2011，Vol.38Issue(2)：135-140,6.DOI:10.3969/j.issn.1001-2400.2011.02.024
一种峰值电流控制模式的大功率DC-DC转换器芯片设计
Design of a high output power step down DC/DC converter with the peak current control mode
摘要
Abstract
This paper presents a high output-power step-down DC/DC converter based on the CSMC O. 5 μm BCD (Bipolar-CMOS-DMOS) process. This chip provides a fast transient response and eases loop stabilization by using the current mode operation with the peak-current-control and slope compensation scheme. A power MOSFET with the conduct-resistor less than O. 18 Ω is integrated in the chip, and it can provide an over 3.0 A continuous output current. Simulation results and measurement show that the oscillating frequency is 400 kHz,that the output power is more than 10 W, and that the average efficiency is up to 85％ over a wide supply range from 4. 7 V to 24 V. The die area is less than 1.6 min× 1.3 mm, and the chip can be widely used in various distributed power systems.关键词
BCD工艺/降压型/峰值电流控制/瞬态响应分类
信息技术与安全科学引用本文复制引用
刘帘曦,杨银堂,朱樟明..一种峰值电流控制模式的大功率DC-DC转换器芯片设计[J].西安电子科技大学学报（自然科学版）,2011,38(2):135-140,6.基金项目
国家自然科学基金资助项目(61006028,60676009,60725415) （61006028,60676009,60725415）
国家重大科技专项基金资助项目(2009ZX01034-002-001-005) （2009ZX01034-002-001-005）
AM基金资助项目(XA-AM-201010) （XA-AM-201010）
