An Energy-Replenishing Ultrasound Pulser with 0.25CV2f Dynamic Power Consumption

📋 论文概要

该论文提出了一种能量回收型超声波脉冲器，通过0.25CV2f的动态功耗实现低功耗超声成像。解决了传统超声波脉冲器能耗高的问题。

💡 主要创新点

• 提出能量回收架构，利用电容电荷回收技术降低动态功耗至0.25CV2f。
• 通过电荷泵积分器自适应调节延迟，实现精确的脉冲时序控制。

🏷 关键词

📄 原文摘要

Daegu Catholic University Medical Center, Daegu, Korea 4 Daegu Gyeongbuk Institute of Science and Technology, Daegu, Korea 5 New York University Abu Dhabi, Abu Dhabi, United Arab Emirates leads to the end of Φ1 by turning MP2 off, and enables the comparison between VSEN and VREF,EXT, by setting CLKCOMP1 to logic high. Based on the comparison result, the chargepump-based integrator adjusts VC1. For instance, if VSEN is lower than VREF,EXT, VC1 is reduced by one step (10mV) to increase tDelay1 for the next Φ1. When VEnd1 is asserted, Φ2 begins as the rising edge of VEnd1 triggers the unit block for Φ2. After tDelay2, the comparator in this unit block compares VSEN and VREF,EXT like the one in the unit block for Φ1 but with opposite polarity. If VSEN is higher than VREF,EXT, VC2 is reduced by one step to increase tDelay2 for the next Φ2. Repeating several cycles of comparison and delaytime adjustment, tDelay1-2 are optimized such that VSEN becomes close to VREF,EXT at the

👥 作者与机构

KAIST, Daejeon, Korea

Endolfin, Anyang, Korea