%0 Conference Paper
%T Nanomechanical Self-Timed Power Management Circuit for Low-Power IoT Devices
%P 1-5
%W https://hdl.handle.net/1983/5f98a251-3b8c-41fd-b083-8583a14f5ef1
%U https://ieeexplore.ieee.org/abstract/document/11376800
%X Industrial Internet of Things (IoT) applications often see harsh environmental conditions such as high temperatures and radiation levels, which reduce the efficiency of CMOS power converters. This paper presents a nanoelectromechanical (NEM) relay-based power management unit that can operate in such conditions with zero standby power. The proposed circuit is selftimed and does not need a clock or an external synchronization signal, and minimises switching activity to mitigate against the limited lifetime of NEM relays. Simulation results show that the proposed circuit can maintain a stable voltage of 5.7 V DC when supplying a 20 \mu \mathrmA load, with 33% power conversion efficiency. This proof of concept demonstrates the potential of nanomechanical circuits for power management in low-power harsh environment IoT applications where Si transistors struggle to operate.
%B 2025 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS)
%A Liao, Guangwei
%A Weerasekera, Roshan
%A Pamunuwa, Dinesh
%D 2025-10
%K Harsh environment
IoT application
NEM relay
Nanoelectromechanical systems
Power management
Power system management
RF energy harvest
Radio frequency
Relays
Silicon
Simulation
Switching circuits
Synchronization
Transistors
Voltage
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