An Ultra Low Power CMOS MPPT Power Conditioning Circuit for Energy Harvesters

2020 ◽  
Author(s):  
Francarl Galea ◽  
Owen Casha ◽  
Ivan Grech ◽  
Edward Gatt ◽  
Joseph Micallef
Keyword(s):  
Low Power ◽  
Power Conditioning ◽  
Ultra Low Power ◽  
Energy Harvesters ◽  
Low Power Cmos ◽  
Conditioning Circuit

scholarly journals Experimental Measurements of a Low Power CMOS Analog MPPT Power Conditioning Circuit for Energy Harvesting Applications

2021 ◽  
Vol 14 ◽  
pp. 1192-1197
Author(s):  
Francarl Galea ◽  
Owen Casha ◽  
Ivan Grech ◽  
Edward Gatt ◽  
Joseph Micallef
Keyword(s):  
Low Power ◽  
Maximum Power ◽  
Threshold Region ◽  
Power Conditioning ◽  
Maximum Power Point ◽  
Power Circuit ◽  
Ultra Low Power ◽  
Energy Harvesters ◽  
Power Point ◽  
Conditioning Circuit

This paper presents the complete measured performance and characterization of a fabricated power conditioning integrated circuit for energy harvesters with on-chip maximum power point tracking (MPPT) and external energy storage. This ultra-low power circuit employs an AC/DC-to-DC converter compatible with both AC and DC voltage energy harvesters. The MPPT design follows the perturbation and observation algorithm. This MPPT is capable of tracking the maximum power point of types of energy harvesters. The circuit is implemented using the AMS CMOS 0:35 μm high voltage technology and all the circuit blocks use analog electronic techniques, with the transistors operating in the sub-threshold region, in order to obtain a minimum power consumption. This power conditioning circuit consumes less than 2 μW while featuring an input voltage range of -0:5V to -50V and a power range from 10 μW to 200mW.

An ultra-low-power CMOS voltage reference generator based on body bias technique

2013 ◽  
Vol 44 (12) ◽  
pp. 1145-1153 ◽  
Author(s):  
Yanhan Zeng ◽  
Yirong Huang ◽  
Yunling Luo ◽  
Hong-Zhou Tan
Keyword(s):  
Low Power ◽  
Voltage Reference ◽  
Ultra Low Power ◽  
Reference Generator ◽  
Low Power Cmos ◽  
Cmos Voltage Reference ◽  
Body Bias

scholarly journals Ultra-Low Power CMOS Readout for Resonant MEMS Strain Sensors

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 973
Author(s):  
Marco Crescentini ◽  
Cinzia Tamburini ◽  
Luca Belsito ◽  
Aldo Romani ◽  
Alberto Roncaglia ◽  
...  
Keyword(s):  
Low Power ◽  
Power Supply ◽  
First Generation ◽  
Negative Resistance ◽  
Low Noise ◽  
Strain Sensors ◽  
Current Conveyors ◽  
Ultra Low Power ◽  
Active Elements ◽  
Low Power Cmos

This paper presents an ultra-low power, silicon-integrated readout for resonant MEMS strain sensors. The analogue readout implements a negative-resistance amplifier based on first-generation current conveyors (CCI) that, thanks to the reduced number of active elements, targets both low-power and low-noise. A prototype of the circuit was implemented in a 0.18-µm technology occupying less than 0.4 mm2 and consuming only 9 µA from the 1.8-V power supply. The prototype was earliest tested by connecting it to a resonant MEMS strain resonator.

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