An Ultra-Low Power Cycle-by-Cycle Current Limiter Suitable for Switching-Mode Power Supply with 2.2 MHz Frequency

2019 ◽  
Author(s):  
Yue Shi ◽  
Jiawen Wang ◽  
Jianwen Cao ◽  
Zekun Zhou
Keyword(s):  
Low Power ◽  
Power Supply ◽  
Ultra Low Power ◽  
Power Cycle ◽  
Current Limiter ◽  
Switching Mode Power Supply ◽  
Switching Mode

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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