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High Frequency
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Batch-fabricated microinductors with electroplated magnetically anisotropic and laminated alloy cores
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A microfabricated transformer for high-frequency power or signal conversion
A microfabricated transformer for high-frequency power or signal conversion,10.1109/20.706551,IEEE Transactions on Magnetics,Ming Xu,Trifon M. Liakopo
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A microfabricated transformer for high-frequency power or signal conversion
(
Citations: 33
)
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Ming Xu
,
Trifon M. Liakopoulos
,
Chong H. Ahn
,
Suk Hee Han
,
Hi Jung Kim
A new microtransformer (1:1) for
high frequency
power or signal conversion has been designed, fabricated and characterized in this work. An innovative laterally laminated-core structure has been adopted and implemented by using new micromachining techniques. Using the fabricated microtransformer, a voltage gain of -4 dB has been achieved over the frequency range of 7-11 MHz. The coupling coefficient between the primary and secondary coils is higher than 0.9 up to 5 MHz. The transformer realized in this research functionally works as a basic transformer for power or signal conversion
Journal:
IEEE Transactions on Magnetics - IEEE TRANS MAGN
, vol. 34, no. 4, pp. 1369-1371, 1998
DOI:
10.1109/20.706551
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Citation Context
(23)
...Several issues of on-chip microtransformers have been investigated for many years [
1-21
]...
...The solutions for the solid magnetic core loss were proposed [
19-21
]...
Tsung-Han Tsai
,
et al.
Investigation of electrical and magnetic properties of ferro-nanofluid...
...To achieve these functions, the design of Ethernet transformers appreciably deviates from the design of conventional power transformers [
1
]–[3]...
David Bowen
,
et al.
Electromagnetic Modeling of Ethernet Transformers
...However, processing constraints do not allow thin laminations with adequate cross sectional area, and transformers built by this method have low power density and efficiency [
32
]...
Charles R. Sullivan
.
Integrating magnetics for on-chip power: Challenges and opportunities
...To achieve these functions, the design of ETs appreciably deviates from the design of conventional transformers [
1
]–[3]...
David Bowen
,
et al.
Modeling and Testing of Ethernet Transformers
...Some preliminary efforts have been made using sputtering [87], [88], electroplating [
89
]‐[95], and mechanical lamination [96] approaches, but simultaneously achieving thin laminations and thick cores with high fill factors has been difficult...
David P. Arnold
.
Review of Microscale Magnetic Power Generation
References
(6)
Planar microtransformer with monolithically-integrated rectifier diodes for micro-switching converters
(
Citations: 36
)
M. Mino
,
T. Yachi
,
A. Tago
,
K. Yanagisawa
,
K. Sakakibara
Journal:
IEEE Transactions on Magnetics - IEEE TRANS MAGN
, vol. 32, no. 2, pp. 291-296, 1996
A comparison of two micromachined inductors (bar- and meander-type) for fully integrated boost DC/DC power converters
(
Citations: 38
)
Chong H. Ahn
,
Mark G. Allen
Journal:
IEEE Transactions on Power Electronics - IEEE TRANS POWER ELECT
, vol. 11, no. 2, pp. 239-245, 1996
A new toroidal-meander type integrated inductor with a multilevel meander magnetic core
(
Citations: 32
)
Chong H. Ahn
,
Mark G. Allen
Journal:
IEEE Transactions on Magnetics - IEEE TRANS MAGN
, vol. 30, no. 1, pp. 73-79, 1994
Load characteristics of a spiral coil type thin film microtransformer
(
Citations: 22
)
K. Yamaguchi
,
E. Sugawara
,
O. Nakajima
,
H. Matsuki
,
K. Murakami
Journal:
IEEE Transactions on Magnetics - IEEE TRANS MAGN
, vol. 29, no. 6, pp. 3207-3209, 1993
Study of thin film micro transformer with high operating frequency and coupling coefficient
(
Citations: 11
)
H. Kurata
,
K. Shirakawa
,
O. Nakazima
,
K. Murakami
Journal:
IEEE Transactions on Magnetics - IEEE TRANS MAGN
, vol. 29, no. 6, pp. 3204-3206, 1993
Sort by:
Citations
(33)
Novel Silicon-Embedded Coreless Transformer for On-Chip Isolated Signal Transfer
Rongxiang Wu
,
Johnny K. O. Sin
Journal:
IEEE Magnetics Letters
, vol. 2, pp. 6500103-6500103, 2011
Investigation of electrical and magnetic properties of ferro-nanofluid on transformers
Tsung-Han Tsai
,
Ping-Hei Chen
,
Da-Sheng Lee
,
Chin-Ting Yang
Journal:
Nanoscale Research Letters - NANOSCALE RES LETT
, vol. 6, no. 1, pp. 1-5, 2011
Electromagnetic Modeling of Ethernet Transformers
(
Citations: 1
)
David Bowen
,
Isaak Mayergoyz
,
Charles Krafft
Journal:
IEEE Transactions on Magnetics - IEEE TRANS MAGN
, vol. 46, no. 2, pp. 563-569, 2010
Integrating magnetics for on-chip power: Challenges and opportunities
(
Citations: 3
)
Charles R. Sullivan
Conference:
Custom Integrated Circuits Conference - CICC
, 2009
Comparison of Test Methods for Characterization of High-Leakage Two-Winding Transformers
(
Citations: 1
)
John G. Hayes
,
David Cashman
,
Michael G. Egan
,
Terence O'Donnell
,
Ningning Wang
Journal:
IEEE Transactions on Industry Applications - IEEE TRANS IND APPL
, vol. 45, no. 5, pp. 1729-1741, 2009