Name
Abstract | ||
|---|---|---|
One of the major challenges in remotely powered sensors is that events being monitored can not be time-stamped due to the unavailability of a continuously active timer or system clock. Implementing such a timer would require access to a perennial source of energy, which for a structural health monitoring (SHM) application, could easily span several years. In this paper, we present a novel approach to implement self-powered timers that only requires presence of ambient thermal energy. The operational principle of the timer is based on the physics of trap-assisted electron transportation in floating-gate capacitors which yields leakage currents down to 10-21A. Using a differential architecture the proposed timer compensates for the effects of temperature variations during the timer read-out. In this paper we validate the proof-of-concept using measurement results obtained from different timer topologies which have been prototyped in a 0.5μm CMOS process. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/ISCAS.2013.6572313 | ISCAS |
Keywords | Field | DocType |
cmos process,trap-assisted electron transportation,cmos integrated circuits,timing circuits,leakage currents,continuously active timer,timer read-out,self-powered cmos timers,structural health monitoring application,thermal-noise energy scavenging,system clock,size 0.5 mum,differential architecture,semiconductor device noise,floating-gate capacitors,capacitors,perennial energy source,thermal noise,ambient thermal energy,temperature variations,cmos digital integrated circuits,shm application,condition monitoring,proof-of-concept,timer topologies,remotely powered sensors,temperature measurement,sensors,proof of concept,metals | Capacitor,Structural health monitoring,Computer science,Electronic engineering,CMOS,Unavailability,System time,Condition monitoring,555 timer IC,Timer,Electrical engineering | Conference |
ISSN | ISBN | Citations |
0271-4302 | 978-1-4673-5760-9 | 0 |
PageRank | References | Authors |
0.34 | 4 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Liang Zhou | 1 | 5 | 4.59 |
| Pikul Sarkar | 2 | 23 | 3.34 |
| Shantanu Chakrabartty | 3 | 335 | 64.30 |