电测与仪表2025，Vol.62Issue(7)：69-76,8.DOI:10.19753/j.issn1001-1390.2025.07.008
包络线跟踪电源控制基准动态生成技术研究
Research on dynamic generation technology for control reference in envelope tracking power supply
摘要
Abstract
Since the energy storage elements in switching converter have a certain response time,it is difficult to respond to the envelope signal rapidly.The dynamic generation technology for control reference in envelope tracking power supply is proposed.This paper uses a low-pass filter to obtain the component information of the radio fre-quency signal in low frequency,and uses this information to generate a reference signal based on the proposed dy-namic average segmentation technology.Switched mode power converter can provide the main part of the low-fre-quency energies with high efficiency,and the rest of the high-frequency energies can be supplemented by a linear amplifier.The effect of the amplitude and the duration time of the constant reference on the overall efficiency of power supply is discussed in detail.Finally,based on the 64 quadrature amplitude modulation radio frequency sig-nal,a composite envelope tracking(ET)power supply with the tracking bandwidth of 300 kHz and the output volt-age of 7.6 V～21 V is constructed.Experimental results verify the feasibility of the proposed method.关键词
包络线跟踪电源/数字滤波器/基准信号Key words
envelope tracking power supply/digital filter/reference signal分类
信息技术与安全科学引用本文复制引用
张致昊,周岩,戴黎明,朱建鑫..包络线跟踪电源控制基准动态生成技术研究[J].电测与仪表,2025,62(7):69-76,8.基金项目
国家自然科学基金资助项目(51777098),江苏自然科学基金资助项目(BK20191383),江苏省青蓝工程优秀青年骨干教师和江苏省研究生科研与实践创新计划资助项目(SJCX21_0303) （51777098）
