首页> 外文期刊>Analog Integrated Circuits and Signal Processing >Design of a synchronous boost DC–DC converter with constant current mode control in MPP
【24h】

Design of a synchronous boost DC–DC converter with constant current mode control in MPP

机译:MPP中具有恒定电流模式控制的同步升压DC-DC转换器的设计

获取原文
获取原文并翻译 | 示例

摘要

This paper introduces a constant current control mode (CCM) method for boost DC–DC converters with synchronous rectifiers. The aim is to enlarge the application range, meeting the requirement in markets of mobile power pack (MPP). Historically, the boost DC–DC converters applied in a MPP only have a constant voltage control mode (VCM) loop to provide a fixed output voltage for discharging and usually use short circuit protection to avoid chip damage when the output current exceeds the limitation value. The proposed CCM implemented with a precision buffer for reference voltage and an extra error amplifier has guaranteed a continuous current for loading in the MPP which can strongly enhance the battery life. For a proof of concept, a boost DC–DC converter was implemented with the proposed CCM in a 0.6 μm 5 V BCD SILTERRA process with an area of 2.484 mm2. The experimental results demonstrate steady conversion from VCM to CCM control. Besides, the load current boundary value in CCM achieves a variation within 10 % at both 1 and 2 A load current under different supply voltages which can meet the maximum limit of MPP application.
机译:本文介绍了一种具有同步整流器的升压DC-DC转换器的恒流控制模式(CCM)方法。目的是扩大应用范围,满足移动电源(MPP)市场的需求。从历史上看,应用于MPP的升压DC-DC转换器仅具有恒定电压控制模式(VCM)环路,以提供固定的放电输出电压,并且通常使用短路保护来避免在输出电流超过限制值时损坏芯片。拟议中的CCM配备了用于基准电压的精密缓冲器和一个额外的误差放大器,从而保证了MPP负载的连续电流,从而可以大大延长电池寿命。为了进行概念验证,采用建议的CCM在0.6μm5V BCD SILTERRA工艺中采用了面积为2.484mm2的升压DC-DC转换器。实验结果证明了从VCM到CCM控制的稳定转换。此外,在不同电源电压下,在1A和2A负载电流下,CCM中的负载电流边界值都实现了10%的变化,可以满足MPP应用的最大限制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号