Session 31Energy Harvesting and IoT Power.pdf

1、Session 31 Overview:Energy Harvesting and IoT Power POWER MANAGEMENT SUBCOMMITTEERecent advancements in energy harvesting and IoT power management are featured in four papers at this years ISSCC.Paper 31.1 presents a hybrid system that combines piezoelectric and electromagnetic harvesters to achieve

2、 improved efficiency and circuit compactness.Paper 31.2 introduces a biased-SECE interface for fast maximum power point tracking in piezoelectric harvesting.Paper 31.3 highlights a sense-and-track MPPT circuit designed for continuous power extraction under various conditions,including periodic and s

3、hock excitations.The final paper,31.4,showcases a PMIC optimized for mm-scale IoT applications,enhancing burst energy delivery through a hybrid combination of capacitors and batteries.Session Chair:Gal Pillonnet CEA-Leti,Grenoble,France Session Co-Chair:Sung-Wan Hong Sogang University,Seoul,Korea 51

4、6 2025 IEEE International Solid-State Circuits ConferenceISSCC 2025/SESSION 31/ENERGY HARVESTING AND IOT POWER/OVERVIEW979-8-3315-4101-9/25/$31.00 2025 IEEE2:20 PM 31.3 A Rectifier-less Piezoelectric Energy-Harvesting Interface with a Sense&Track MPPT Achieving Single-Cycle Convergence and 568%Shock

5、 Power Improvement Shunmin Jiang,Delft University of Technology,Delft,The Netherlands In Paper 31.3,TU Delft University presents a sense-and-track MPPT circuit for piezoelectric energy harvesting,achieving fast,continuous MPPT and improving power extraction by 718%under periodic and 568%under shock

6、excitations.Fabricated in 0.18m BCD,the circuit operates efficiently with a 0.67mm active area.2:45 PM 31.4 A 91.25%Peak Power-Conversion-Efficiency Capacitive Power-Management IC Supporting up to 5.68mJ Burst Energy Delivery Using a Single External Capacitor for mm-Scale IoT Applications Qishen Fan