High Efficiency PWM Controlled Micro DC-DC Converter for Portable Electronic Equipments

Satoshi SUGAHARA; Kouhei YAMADA; Tetsuya KAWASHIMA; Masaharu EDO; Toshiro SATO; Kiyohito YAMASAWA

doi:10.1093/ietcom/e91-b.11.3704

High Efficiency PWM Controlled Micro DC-DC Converter for Portable Electronic Equipments

Satoshi SUGAHARA, Kouhei YAMADA, Tetsuya KAWASHIMA, Masaharu EDO, Toshiro SATO, Kiyohito YAMASAWA

Full Text Views

0

Cite this

Summary :

In this paper, the characteristics of a micro DC-DC converter for portable electronic equipments are described. In the converter, an inductor, switching devices and control integrated circuits (ICs) were integrated. The external size of the converter module was 3.0 mm 3.0 mm 1.0 mm. And the converter had a high efficiency of 83% at the input voltage of 7.2 V and the output voltage of 1.5 V. The miniaturization of the converter was achieved by developing a small inductor of the size of 3.0 mm 3.0 mm 0.525 mm. High efficiency was achieved by adopting 0.6 µm CMOS process for ICs and switching devices, using N channel MOSFET for a high side power switch, and controlling a dead time adaptively. The efficiency characteristics of the converter were analyzed experimentally and theoretically. And the losses of the converter were theoretically analyzed.

Publication: IEICE TRANSACTIONS on Communications Vol.E91-B No.11 pp.3704-3711

Publication Date: 2008/11/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e91-b.11.3704

Type of Manuscript: PAPER

Category: Energy in Electronics Communications

Cite this

Copy

Satoshi SUGAHARA, Kouhei YAMADA, Tetsuya KAWASHIMA, Masaharu EDO, Toshiro SATO, Kiyohito YAMASAWA, "High Efficiency PWM Controlled Micro DC-DC Converter for Portable Electronic Equipments" in IEICE TRANSACTIONS on Communications, vol. E91-B, no. 11, pp. 3704-3711, November 2008, doi: 10.1093/ietcom/e91-b.11.3704.
Abstract: In this paper, the characteristics of a micro DC-DC converter for portable electronic equipments are described. In the converter, an inductor, switching devices and control integrated circuits (ICs) were integrated. The external size of the converter module was 3.0 mm 3.0 mm 1.0 mm. And the converter had a high efficiency of 83% at the input voltage of 7.2 V and the output voltage of 1.5 V. The miniaturization of the converter was achieved by developing a small inductor of the size of 3.0 mm 3.0 mm 0.525 mm. High efficiency was achieved by adopting 0.6 µm CMOS process for ICs and switching devices, using N channel MOSFET for a high side power switch, and controlling a dead time adaptively. The efficiency characteristics of the converter were analyzed experimentally and theoretically. And the losses of the converter were theoretically analyzed.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.11.3704/_p

Copy

@ARTICLE{e91-b_11_3704,
author={Satoshi SUGAHARA, Kouhei YAMADA, Tetsuya KAWASHIMA, Masaharu EDO, Toshiro SATO, Kiyohito YAMASAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={High Efficiency PWM Controlled Micro DC-DC Converter for Portable Electronic Equipments},
year={2008},
volume={E91-B},
number={11},
pages={3704-3711},
abstract={In this paper, the characteristics of a micro DC-DC converter for portable electronic equipments are described. In the converter, an inductor, switching devices and control integrated circuits (ICs) were integrated. The external size of the converter module was 3.0 mm 3.0 mm 1.0 mm. And the converter had a high efficiency of 83% at the input voltage of 7.2 V and the output voltage of 1.5 V. The miniaturization of the converter was achieved by developing a small inductor of the size of 3.0 mm 3.0 mm 0.525 mm. High efficiency was achieved by adopting 0.6 µm CMOS process for ICs and switching devices, using N channel MOSFET for a high side power switch, and controlling a dead time adaptively. The efficiency characteristics of the converter were analyzed experimentally and theoretically. And the losses of the converter were theoretically analyzed.},
keywords={},
doi={10.1093/ietcom/e91-b.11.3704},
ISSN={1745-1345},
month={November},}

Copy

TY - JOUR
TI - High Efficiency PWM Controlled Micro DC-DC Converter for Portable Electronic Equipments
T2 - IEICE TRANSACTIONS on Communications
SP - 3704
EP - 3711
AU - Satoshi SUGAHARA
AU - Kouhei YAMADA
AU - Tetsuya KAWASHIMA
AU - Masaharu EDO
AU - Toshiro SATO
AU - Kiyohito YAMASAWA
PY - 2008
DO - 10.1093/ietcom/e91-b.11.3704
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2008
AB - In this paper, the characteristics of a micro DC-DC converter for portable electronic equipments are described. In the converter, an inductor, switching devices and control integrated circuits (ICs) were integrated. The external size of the converter module was 3.0 mm 3.0 mm 1.0 mm. And the converter had a high efficiency of 83% at the input voltage of 7.2 V and the output voltage of 1.5 V. The miniaturization of the converter was achieved by developing a small inductor of the size of 3.0 mm 3.0 mm 0.525 mm. High efficiency was achieved by adopting 0.6 µm CMOS process for ICs and switching devices, using N channel MOSFET for a high side power switch, and controlling a dead time adaptively. The efficiency characteristics of the converter were analyzed experimentally and theoretically. And the losses of the converter were theoretically analyzed.
ER -