⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种全集成逆流能量储存器，用于超低功耗系统在峰值功率需求时高效供电。通过逆流能量管理技术，实现了70%的效率，解决了高内阻电池无法直接提供高脉冲电流的问题。
University of Michigan, Ann Arbor, MI Recent advances in circuits have enabled significant reduction in the size of wireless systems such as implantable biomedical devices. As a consequence, the battery integrated in these systems has also shrunk, resulting in high internal resistances (~10kΩ). However, the peak-current requirement of power-hungry components such as radios remains in the mW range, and hence cannot be directly supplied from the battery. Therefore, duty-cycled architectures such as pulsed-based radios have been proposed that transmit a short burst (~1μs) of high power (~10mW) supplied by an internal energy storage capacitor [1-3]. The capacitor is then recharged using a current limiter to protect the battery from excessive droop. This paradigm raises two challenges: 1) to supply sufficient energy, very large capacitance (>50nF) is often needed (200mV droop, for 10mW and 5μs), leading to large die area or bulky off-chip discrete components; 2) only
Xiao Wu, Kyojin Choo, Yao Shi, Li-Xuan Chuo, Dennis Sylvester, David Blaauw