A 20 mV Colpitts Oscillator powered by a thermoelectric generator

被引：0
|
作者：
de Sousa, Fernando Rangel [1 ]
Machado, Marcio Bender [1 ]
Galup-Montoro, Carlos [1 ]
机构：
[1] Univ Fed Santa Catarina, LCI, Florianopolis, SC, Brazil
来源：
2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012) | 2012年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 degrees C room. Under these conditions, the TEG supplied 22 mV and the circuit operated as expected.
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收藏
页码：2035 / 2038
页数：4
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