Title
A 20 mV Colpitts Oscillator powered by a thermoelectric generator
Abstract
In this paper, we present a MOSFET-based Colpitts oscillator based on a “zero-threshold” transistor operating at a supply voltage below 20 mV. The circuit was carefully analyzed and expressions relating the start-up conditions and the voltage supply, as well as the oscillation frequency were developed. Measurement results obtained on a discrete prototype confirmed the low-voltage operation of the oscillator, which sustained oscillations of 130 mV (peak-to-peak) at 97 kHz when the voltage supply was 19.8 mV. The circuit was also powered from a thermoelectric generator (TEG) connected to a persons arm in a room with temperature of 24°C room. Under these conditions, the TEG supplied 22 mV and the circuit operated as expected.
Year
DOI
Venue
2012
10.1109/ISCAS.2012.6271680
Circuits and Systems
Keywords
Field
DocType
MOSFET,oscillators,thermoelectric conversion,MOSFET-based Colpitts oscillator,TEG,frequency 97 kHz,low-voltage operation,oscillation frequency,power 19.8 mW,start-up conditions,temperature 24 degC,thermoelectric generator,voltage 130 mV,voltage 20 mV,voltage 22 mV,voltage supply,zero-threshold transistor
Colpitts oscillator,Oscillation,Capacitor,Thermoelectric generator,Computer science,Voltage,Electronic engineering,Transistor,MOSFET,Thermoelectric conversion,Electrical engineering
Conference
ISSN
ISBN
Citations 
0271-4302
978-1-4673-0218-0
4
PageRank 
References 
Authors
0.55
0
5
Name
Order
Citations
PageRank
Fernando Rangel de Sousa14312.99
Marcio Bender Machado2232.96
Carlos Galup-Montoro323640.80
de Sousa, F.R.440.55
Galup-Montoro, C.510523.86