A small, low power boost regulator optimized for energy harvesting applications

被引：1

作者：

Nosker, Zachary ^{[1
]}

Kobori, Yasunori ^{[1
]}

Kobayashi, Haruo ^{[1
]}

Niitsu, Kiichi ^{[2
]}

Takai, Nobukazu ^{[1
]}

Oomori, Takeshi ^{[3
]}

Odaguchi, Takahiro ^{[4
]}

Nakanishi, Isao ^{[5
]}

Nemoto, Kenji ^{[6
]}

Matsuda, Jun-ichi ^{[7
]}

机构：

[1] Gunma Univ, Dept Elect Engn, Kiryu, Gunma 3768515, Japan

[2] Nagoya Univ, Dept Elect Engn & Comp Sci, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[3] AKM Technol Corp, Naka Ku, Nagoya, Aichi 4600022, Japan

[4] AKM Technol Corp, Aoba Ku, Sendai, Miyagi 9800811, Japan

[5] AKM Technol Corp, Asaka, Saitama 3510024, Japan

[6] Asahi Kasei Microdevices Corp, Atsugi, Kanagawa 2430021, Japan

[7] Asahi Kasei Power Devices Corp, Nobeoka, Miyazaki 8820031, Japan

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2013年 / 75卷 / 02期

关键词：

Energy harvesting; Boost regulator; CMOS; Hysteretic control;

D O I：

10.1007/s10470-012-0017-3

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A small, low power bootstrapped boost regulator is introduced that can start up with an input voltage of 240 mV and achieve a maximum efficiency of 97 %. The proposed circuit uses two separate control schemes for startup and steady-state operation. A fixed-frequency oscillator is used to initially start up the circuit and raise the output voltage. Once the output voltage has reached a level adequate to bias the internal circuitry, a constant-on-time style hysteretic control scheme is used, which helps increase system efficiency compared to using a conventional pulse-width-modulated control scheme. While maintaining a high efficiency, the proposed circuit only requires three external components: two capacitors (input and output) and an inductor. The effectiveness of this approach is shown through Spectre simulation results.

引用

页码：207 / 216

页数：10

共 16 条

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