2 MHz Power Converter with Piezoelectric Ceramic Transformer

Toshiyuki ZAITSU; Takeshi INOUE; Osamu OHNISHI; Yasuhiro SASAKI

2 MHz Power Converter with Piezoelectric Ceramic Transformer

Toshiyuki ZAITSU, Takeshi INOUE, Osamu OHNISHI, Yasuhiro SASAKI

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A power converter with a new piezoelectric transformer is presented. The piezoelectric transformer, made of lead titanate solid solution ceramic, is operated with a thickness extensional vibration mode. This transformer can operate at high frequency, over several megahertz, with about 90% high efficiency. The resonant frequency for the transformer is 2 MHz. The power converter with the transformer applies the theory for a class-E switching converter using an electromagnetic transformer. Maximum output power was obtained when the switching frequency was slightly higher than the resonant frequency. 4.4 W output power was successfully obtained with 52% efficiency at 2.1 MHz switching frequency.

Publication: IEICE TRANSACTIONS on Electronics Vol.E77-C No.2 pp.280-286

Publication Date: 1994/02/25

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Type of Manuscript: PAPER

Category: Electronic Circuits

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Toshiyuki ZAITSU, Takeshi INOUE, Osamu OHNISHI, Yasuhiro SASAKI, "2 MHz Power Converter with Piezoelectric Ceramic Transformer" in IEICE TRANSACTIONS on Electronics, vol. E77-C, no. 2, pp. 280-286, February 1994, doi: .
Abstract: A power converter with a new piezoelectric transformer is presented. The piezoelectric transformer, made of lead titanate solid solution ceramic, is operated with a thickness extensional vibration mode. This transformer can operate at high frequency, over several megahertz, with about 90% high efficiency. The resonant frequency for the transformer is 2 MHz. The power converter with the transformer applies the theory for a class-E switching converter using an electromagnetic transformer. Maximum output power was obtained when the switching frequency was slightly higher than the resonant frequency. 4.4 W output power was successfully obtained with 52% efficiency at 2.1 MHz switching frequency.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e77-c_2_280/_p

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@ARTICLE{e77-c_2_280,
author={Toshiyuki ZAITSU, Takeshi INOUE, Osamu OHNISHI, Yasuhiro SASAKI, },
journal={IEICE TRANSACTIONS on Electronics},
title={2 MHz Power Converter with Piezoelectric Ceramic Transformer},
year={1994},
volume={E77-C},
number={2},
pages={280-286},
abstract={A power converter with a new piezoelectric transformer is presented. The piezoelectric transformer, made of lead titanate solid solution ceramic, is operated with a thickness extensional vibration mode. This transformer can operate at high frequency, over several megahertz, with about 90% high efficiency. The resonant frequency for the transformer is 2 MHz. The power converter with the transformer applies the theory for a class-E switching converter using an electromagnetic transformer. Maximum output power was obtained when the switching frequency was slightly higher than the resonant frequency. 4.4 W output power was successfully obtained with 52% efficiency at 2.1 MHz switching frequency.},
keywords={},
doi={},
ISSN={},
month={February},}

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TY - JOUR
TI - 2 MHz Power Converter with Piezoelectric Ceramic Transformer
T2 - IEICE TRANSACTIONS on Electronics
SP - 280
EP - 286
AU - Toshiyuki ZAITSU
AU - Takeshi INOUE
AU - Osamu OHNISHI
AU - Yasuhiro SASAKI
PY - 1994
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E77-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 1994
AB - A power converter with a new piezoelectric transformer is presented. The piezoelectric transformer, made of lead titanate solid solution ceramic, is operated with a thickness extensional vibration mode. This transformer can operate at high frequency, over several megahertz, with about 90% high efficiency. The resonant frequency for the transformer is 2 MHz. The power converter with the transformer applies the theory for a class-E switching converter using an electromagnetic transformer. Maximum output power was obtained when the switching frequency was slightly higher than the resonant frequency. 4.4 W output power was successfully obtained with 52% efficiency at 2.1 MHz switching frequency.
ER -