Ultra-Low-Power Techniques in Small Autonomous Implants and Sensor Nodes

2017 ◽  
pp. 571-593
Author(s):  
Benoit Gosselin ◽  
Sébastien Roy ◽  
Farhad Sheikh Hosseini
Keyword(s):  
Low Power ◽  
Sensor Nodes ◽  
Ultra Low Power

Ultra-low power circuit techniques for a new class of sub-mm3 sensor nodes

2010 ◽  
Author(s):  
Yoonmyung Lee ◽  
Gregory Chen ◽  
Scott Hanson ◽  
Dennis Sylvester ◽  
David Blaauw
Keyword(s):  
Low Power ◽  
Sensor Nodes ◽  
Power Circuit ◽  
Ultra Low Power ◽  
New Class ◽  
Circuit Techniques

A Sub-nW Multi-stage Temperature Compensated Timer for Ultra-Low-Power Sensor Nodes

2013 ◽  
Vol 48 (10) ◽  
pp. 2511-2521 ◽  
Author(s):  
Yoonmyung Lee ◽  
Bharan Giridhar ◽  
Zhiyoong Foo ◽  
Dennis Sylvester ◽  
David B. Blaauw
Keyword(s):  
Low Power ◽  
Sensor Nodes ◽  
Ultra Low Power ◽  
Multi Stage ◽  
Power Sensor

Design of an MTJ/CMOS-based Asynchronous System for Ultra-Low Power Energy Autonomous Applications

2020 ◽  
pp. 2150058
Author(s):  
Kanika Monga ◽  
Kunal Harbhajanka ◽  
Arush Srivastava ◽  
Nitin Chaturvedi ◽  
S. Gurunarayanan
Keyword(s):  
Low Power ◽  
Magnetic Tunnel Junction ◽  
Spin Transfer Torque ◽  
Sensor Nodes ◽  
Data Retention ◽  
Computing Systems ◽  
Ultra Low Power ◽  
Energy Harvesters ◽  
Circuit Simulator ◽  
Efficient Data

Most of today’s IoT-based computing systems offer an opportunity to build smarter systems for application areas such as healthcare monitoring and wireless sensor nodes. Since these systems are energy limited and remain idle for most of the time, they suffer from large leakage power dissipation. Another problem faced by such computing systems is sporadic power failures when employed with energy harvesters where the system loses its current state and needs long reinitialization time. To address these problems, this work combines asynchronous design techniques with nonvolatility to achieve ultra-low power operation during active mode and data retention during power failure. This paper first presents a detailed analysis of different implementations of volatile c-element and compares their performance in terms of power and delay. Then one of the implementations is selected for nonvolatile design of a hybrid c-element using emerging spin transfer torque–magnetic tunnel junction (STT–MTJ) technology which allows energy-efficient data retention during idle mode/power-off mode and during sudden power failures. Using this hybrid c-element, we design a novel nonvolatile weak conditioned half-buffer. The extensive analysis of these designs with different design metrics is performed at the circuit level using Synopsys HSPICE circuit simulator.

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