Ultra-Low Power, Low Voltage, Self-Powered Resonant DC–DC Converter for Energy Harvesting

2013 ◽  
Vol 9 (1) ◽  
pp. 103-117 ◽  
Author(s):  
Salah-Eddine Adami ◽  
Nicolas Degrenne ◽  
Walid Haboubi ◽  
Hakim Takhedmit ◽  
Denis Labrousse ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Low Voltage ◽  
Ultra Low Power ◽  
Self Powered

scholarly journals A Self-Powered PMFC-Based Wireless Sensor Node for Smart City Applications

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Daniel Ayala-Ruiz ◽  
Alejandro Castillo Atoche ◽  
Erica Ruiz-Ibarra ◽  
Edith Osorio de la Rosa ◽  
Javier Vázquez Castillo
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Sensor Node ◽  
Smart Cities ◽  
Cloud Services ◽  
Environmental Data ◽  
Security And Privacy ◽  
Wireless Sensor ◽  
Ultra Low Power ◽  
Self Powered

Long power wide area networks (LPWAN) systems play an important role in monitoring environmental conditions for smart cities applications. With the development of Internet of Things (IoT), wireless sensor networks (WSN), and energy harvesting devices, ultra-low power sensor nodes (SNs) are able to collect and monitor the information for environmental protection, urban planning, and risk prevention. This paper presents a WSN of self-powered IoT SNs energetically autonomous using Plant Microbial Fuel Cells (PMFCs). An energy harvesting device has been adapted with the PMFC to enable a batteryless operation of the SN providing power supply to the sensor network. The low-power communication feature of the SN network is used to monitor the environmental data with a dynamic power management strategy successfully designed for the PMFC-based LoRa sensor node. Environmental data of ozone (O3) and carbon dioxide (CO2) are monitored in real time through a web application providing IoT cloud services with security and privacy protocols.

An Ultra-Low-Power, Self-Start-Up DC-DC Boost Converter for Self-Powered IoT Node

2021 ◽  
pp. 2250026
Author(s):  
Krishna Reddy Komatla ◽  
Sreehari Rao Patri
Keyword(s):  
Charge Transfer ◽  
Low Power ◽  
Output Voltage ◽  
Low Voltage ◽  
Boost Converter ◽  
Switching Loss ◽  
Ultra Low Power ◽  
Start Up ◽  
Self Powered ◽  
Iot Devices

This paper presents an ultra-low-power boost converter for self-powered IoT applications to self-start and power-up IoT devices from scratch without any requirement of an external start-up. The proposed converter and its clock generator operate in sub-threshold utilizing bulk-driven technique for low-power operation. The bulk-driven technique improves charge transfer switches for effective switching using auxiliary transistors. This approach enables a MOSFET to operate on supplies lower than its threshold voltage with a significant reduction in the reverse charge transfer and switching loss while increasing the voltage conversion efficiency and output voltage. To validate the performance of the proposed architecture, the post-layout simulation is carried out in standard CMOS 0.18[Formula: see text][Formula: see text]m technology. Under low-voltage supply of 0.4[Formula: see text]V, the simulated transient output voltage takes 110[Formula: see text][Formula: see text]s to reach 1.92[Formula: see text]V with 0.15[Formula: see text] output voltage ripple, while consuming the power of 772[Formula: see text]nW.

scholarly journals Design of Piezoelectric Energy Harvester and Power Conditioning

2020 ◽  
pp. 519-526
Author(s):  
D. Meena ◽  
P. Jegan ◽  
R. Puviyarasan ◽  
R. Sathish
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Power Converter ◽  
Strain Sensing ◽  
Ultra Low Power ◽  
Piezoelectric Energy ◽  
Dc Power ◽  
Novel Approach ◽  
Switching Unit ◽  
Self Powered

The existing system presents a novel approach called simultaneous wireless strain sensing and energy harvesting from multiple piezo-patches, which is intended for self-powered Structural Health Monitoring applications. The Energy Harvesting subsystem is mainly the self-powered extended synchronous electric charge extraction interface based on double cross-coupled rectifying structure and a single fly back transformer, which is able to harvest energy from multiple piezo-patches. In this proposed work, the DC power is generated using piezoelectric and MEMS. Then the Produced by DC energy is given to Ultra Low Power Converter Using with Micro controller then Ultra capacitor used to Highly Discharging in the DC power bank. The outputs of transducers are also given to micro controller. The obtained energy is boosted up using Booster Ultra Low Power Converter. The output of the Ultralow Power Converter is given to the Relay for the switching unit to store energy in a DC Power Bank and the stored energy is inverted to AC voltage

scholarly journals Self-powered ultra-low power DC-DC converter for RF energy harvesting

2012 ◽  
Author(s):  
Salah-Eddine Adami ◽  
Vlad Marian ◽  
Nicolas Degrenne ◽  
Christian Vollaire ◽  
Bruno Allard ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Rf Energy Harvesting ◽  
Ultra Low Power ◽  
Rf Energy ◽  
Self Powered
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