Design of Oscillator and Charge Pump for the Startup of Ultra-Low-Voltage Energy Harvesters

被引：0
|
作者：
Nornberg, Franciele [1 ]
Machado, Marcio B. [2 ]
Radin, Rafael L. [3 ]
Galup-Montoro, Carlos [3 ]
Schneider, Marcio C. [3 ]
机构：
[1] Macnica DHW, Florianopolis, SC, Brazil
[2] Fed Inst Sao Paulo, Campinas, SP, Brazil
[3] Univ Fed Santa Catarina, Elect & Elect Engn Dept, Florianopolis, SC, Brazil
来源：
2023 36TH SBC/SBMICRO/IEEE/ACM SYMPOSIUM ON INTEGRATED CIRCUITS AND SYSTEMS DESIGN, SBCCI | 2023年
关键词：
LC-oscillator; startup; boost converter; fully-integrated; ultra-low voltage; ultra-low power; energy harvesting; BOOST CONVERTER; INPUT VOLTAGE; COLD-START; MV; CIRCUIT;
D O I：
10.1109/SBCCI60457.2023.10261951
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents a design procedure for the minimization of the startup voltage of energy-harvesting boost converters. The analysis of both an LC oscillator and a charge pump under ultra-low-voltage operation, based on the physics-based MOSFET and diode models, is performed. Considering the interaction between these two blocks, a routine that minimizes the startup voltage of boost converters is proposed. The technique provides the oscillator characteristics, number of stages and sizing of the charge-pump devices. The methodology, applied to a cold startup in a 180 nm CMOS technology, provides a fully integrated design with a minimum input voltage of only 53 mV, for an output of 500 mV at 100 nA of current consumption.
引用
收藏
页码：112 / +
页数：5
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