Title
30–300mV input, ultra-low power, self-startup DC-DC boost converter for energy harvesting system
Abstract
An ultra-low power consumption, self-startup boost converter for energy harvesting application is developed in SMIC 0.18μm CMOS process. The idle power consumption is reduced to as low as 1.9μW by using a novel output voltage detector (OVD) and a constant on time (COT) controller with maximum power point tracking (MPPT), which ensures high power efficiency for a wide input voltage range from 30mV to 300mV. Furthermore, a charge-pump based self-startup circuit (CPSC) is introduced to kick start the whole system without using any additional off-chip components. Simulation results show that the power efficiency of this boost converter reaches 84% (or 65%) when delivering 180μW (or 9μW) to the output at input voltage of 80 mV.
Year
DOI
Venue
2012
10.1109/APCCAS.2012.6419064
APCCAS
Keywords
Field
DocType
self-startup dc-dc boost converter,cmos integrated circuits,voltage detector,self-startup boost converter,ultra-low power dc-dc boost converter,voltage 30 mv to 300 mv,output voltage detector,smic cmos process,charge pump circuits,mppt,low-power electronics,ultra-low power consumption,charge pump,size 0.18 mum,energy harvesting,boost,energy harvesting system,constant on time controller,maximum power point trackers,charge-pump based self-startup circuit,maximum power point tracking,idle power consumption,self-startup,high power efficiency,low power electronics
Boost converter,Control theory,Computer science,Voltage optimisation,Maximum power point tracking,Power factor,Electronic engineering,Charge pump,Power optimizer,Buck converter,Switched-mode power supply
Conference
Volume
Issue
ISBN
null
null
978-1-4577-1728-4
Citations 
PageRank 
References 
1
0.48
3
Authors
5
Name
Order
Citations
PageRank
Qing Liu151.98
Xiaobo Wu256.74
Menglian Zhao32211.35
Lu Wang414432.99
Xiaoting Shen510.82