Paper Info
Title
A 95mV-startup step-up converter with Vth-tuned oscillator by fixed-charge programming and capacitor pass-on scheme
Abstract
Harvesting energy from the environment by using a thermoelectric generator (TEG) or photovoltaic cells provides a solution for battery-free sensor networks or electronic healthcare systems. In these systems, the harvested energy is supplied at a very low voltages, requiring a low-startup-voltage power circuit for kick-start from low voltage. A previous sub-100mV-startup-voltage boost converter was implemented by using a mechanically assisted step-up process that needs vibration at startup and the application is rather limited. In this paper, a 95mV startup voltage step-up converter without any mechanical stimulus extends the applicability of energy harvesting. The circuit converts a 100mV input to a 0.9V output with 72% conversion efficiency without any external clocks or mechanical switches. A capacitor pass-on scheme eliminates an additional external output capacitor that functions only at the startup.
Year
DOI
Venue
2011
10.1109/ISSCC.2011.5746290
ISSCC
Keywords
DocType
ISSN
TEG,power convertors,step-up converter,voltage power circuit,photovoltaic cell,boost converter,voltage 0.9 V,capacitor pass-on scheme,voltage 95 mV,capacitors,voltage 100 mV,energy harvesting,VTH-tuned oscillator,fixed-charge programming,oscillators,thermoelectric generator
Conference
0193-6530
ISBN
Citations 
PageRank 
978-1-61284-303-2
1
0.42
References 
Authors
0
9
Name
Order
Citations
PageRank
Po-Hung Chen116426.55
Koichi Ishida210.42
Katsuyuki Ikeuchi3456.08
Xin Zhang440752.86
Kentaro Honda5609.67
Yasuyuki Okuma613115.13
Yoshikatsu Ryu711212.75
Makoto Takamiya839579.98
Takayasu Sakurai91039280.69