Abstract
Piezoelectric-Transformers (PT) have a lot of merits in comparison with magnetic transformers. We have previously presented some types of Piezoelectric-Transformer DC-DC Converters (PT-converters) for AC-adapters, but their efficiency was restricted. The maximum efficiency was less than 80%. Furthermore, the frequency characteristics of efficiency is not good due to the power loss generated in the input filter circuit of the PT. In this paper, the improvement of the converter efficiency by using a different rectifier circuit topology and a synchronous-rectifier technique is described. Furthermore, the frequency characteristics of efficiency is improved by using a different topology of the input filter circuit and its optimum design. As a result, the converter efficiency has been increased up to 88% and the frequency characteristics of the efficiency is also improved.
| Original language | English |
|---|---|
| Title of host publication | PESC Record - IEEE Annual Power Electronics Specialists Conference |
| Editors | Anon |
| Pages | 1255-1261 |
| Number of pages | 7 |
| Volume | 2 |
| DOIs | |
| Publication status | Published - 1998 |
| Event | Proceedings of the 1998 IEEE 29th Annual Power Electronics Specialists Conference, PESC. Part 2 (of 2) - Fukuoka, Jpn Duration: May 18 1998 → May 21 1998 |
Other
| Other | Proceedings of the 1998 IEEE 29th Annual Power Electronics Specialists Conference, PESC. Part 2 (of 2) |
|---|---|
| City | Fukuoka, Jpn |
| Period | 5/18/98 → 5/21/98 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
Cite this
Efficiency improvement of Piezoelectric-Transformer DC-DC Converter. / Yamane, Takashi; Hamamura, Sunao; Zaitsu, Toshiyuki; Ninomiya, Tamotsu; Shoyama, Masahito; Fuda, Yoshiaki.
PESC Record - IEEE Annual Power Electronics Specialists Conference. ed. / Anon. Vol. 2 1998. p. 1255-1261.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Efficiency improvement of Piezoelectric-Transformer DC-DC Converter
AU - Yamane, Takashi
AU - Hamamura, Sunao
AU - Zaitsu, Toshiyuki
AU - Ninomiya, Tamotsu
AU - Shoyama, Masahito
AU - Fuda, Yoshiaki
PY - 1998
Y1 - 1998
N2 - Piezoelectric-Transformers (PT) have a lot of merits in comparison with magnetic transformers. We have previously presented some types of Piezoelectric-Transformer DC-DC Converters (PT-converters) for AC-adapters, but their efficiency was restricted. The maximum efficiency was less than 80%. Furthermore, the frequency characteristics of efficiency is not good due to the power loss generated in the input filter circuit of the PT. In this paper, the improvement of the converter efficiency by using a different rectifier circuit topology and a synchronous-rectifier technique is described. Furthermore, the frequency characteristics of efficiency is improved by using a different topology of the input filter circuit and its optimum design. As a result, the converter efficiency has been increased up to 88% and the frequency characteristics of the efficiency is also improved.
AB - Piezoelectric-Transformers (PT) have a lot of merits in comparison with magnetic transformers. We have previously presented some types of Piezoelectric-Transformer DC-DC Converters (PT-converters) for AC-adapters, but their efficiency was restricted. The maximum efficiency was less than 80%. Furthermore, the frequency characteristics of efficiency is not good due to the power loss generated in the input filter circuit of the PT. In this paper, the improvement of the converter efficiency by using a different rectifier circuit topology and a synchronous-rectifier technique is described. Furthermore, the frequency characteristics of efficiency is improved by using a different topology of the input filter circuit and its optimum design. As a result, the converter efficiency has been increased up to 88% and the frequency characteristics of the efficiency is also improved.
UR - http://www.scopus.com/inward/record.url?scp=0031619070&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031619070&partnerID=8YFLogxK
U2 - 10.1109/PESC.1998.703167
DO - 10.1109/PESC.1998.703167
M3 - Conference contribution
SN - 0780344898
VL - 2
SP - 1255
EP - 1261
BT - PESC Record - IEEE Annual Power Electronics Specialists Conference
A2 - Anon, null
ER -