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Plenary
Lecture
Analytical Synthesis Method in Analog Circuit Design
Professor Chun-Ming Chang
Dept. of Electrical Engineering
Chung Yuan Christian University
Chung-Li, Taiwan 32023
R. O. China
E-mail:
chunming@dec.ee.cycu.edu.tw
Abstract: Analytical Synthesis Method (ASM) has been
presented in several papers published in the IEEE
Transactions on Circuits and Systems since 2003. It is
one of the powerful design methods in the field of
analog circuit design. It is the method using a
succession of innovative algebra manipulation operations
to decompose a complicated transfer function
representing the relationship between the output and the
input signals of a design project into many simple
equations feasible by using the corresponding simple
sub-circuitries. The simple sub-circuitries can be
constructed by the desired configuration of the element
such as the single-ended-input operational
transconductance amplifiers (OTAs) and the grounded
capacitors, both of which are used for absorbing and
reducing the shunt parasitic capacitance and lead to
have more precise output responses. In addition to this,
the ASM can control the number of the terms in the
complicated decomposition process such that the number
of both active and passive components used in the
circuit is the least compared to the previously reported
ones. Then, the ASM is the only one method which can
simultaneously achieve the three important criteria for
the design of OTA-C circuits without trade-off. Due to
the flexibility of the ASM, the simple sub-circuitries
used in the circuit design can be changed and chosen
according to different necessities for the target of the
circuit design. For example, if the reduction of the
number of the active and passive components used in the
circuit is more important than the type of the element
configurations like
single-ended-input/differential-input OTAs and
grounded/floating capacitors due to the consideration
about power consumption, chip area, noise, and total
parasitics..., etc., the minimum component OTA-C circuit
can also be investigated and developed successfully
using the ASMs. The fully flexible characteristic and
the real demonstration in the literature of the ASM may
make it be one of the most prospective methods in the
field of analog circuit design in the near future.
Brief Biography of the Speaker:
Chun-Ming Chang received the B.S.E.E. and M.S.E.E.
degrees from National Cheng Kung University, Tainan,
Taiwan, R. O. C. in 1975 and 1977, respectively, and the
Ph.D. degree from the University of Southampton,
Southampton, U.K., in 2004.
In 1979, he joined the Department of Electrical
Engineering, Taipei Institute of Technology, Taipei,
Taiwan, R. O. C., as a Lecturer. After one year, he
transferred to the Department of Electronic Engineering,
Fu Jen Catholic University, Taipei Hsien, Taiwan, R.O.C.
In 1982, he joined the Department of Electrical
Engineering, Chung Yuan Christian University, Chung-Li,
Taiwan, R.O.C., where he became an Associate Professor
and a Full Professor in 1985 and 1991, respectively. He
is currently a Professor of Electrical Engineering and
leader of the Electronic Circuits Group in the
Department of Electrical Engineering, Chung Yuan
Christian University. He is also a departmental teacher
promotion committee member and a college teacher
promotion committee member. He was the chairman of the
Department of Electrical Engineering of Chung Yuan
Christian University from 1995 to 1999. His research
interests are divided into two parts: network synthesis
and analog circuit design before and after 1991,
respectively. The improvement for the approach technique
to factorize a paramount matrix used in network
synthesis and proposed by Professor I. Cederbaum let him
be promoted to a Full Professor in 1991. He has
published over 70 SCI papers, in which the most famous
is the invention of a new analytical synthesis method
for the design of analog circuits which can, for the
first time, simultaneously achieve three important
criteria for the design of OTA-C filters without
trade-offs. Using a succession of innovative algebra
manipulation operations, a complicated nth-order
transfer function can be decomposed into a set of simple
equations feasible using the single-ended-input OTAs and
grounded capacitors. Several IEEE Transaction papers on
Circuits and Systems with analytical synthesis method
have been published in the literature since 2003.
Recently, he was invited as the Plenary Speaker of the (i)
7th WSEAS International Conference on Instrumentation,
Measurement, Circuits and Systems (IMCAS ’08), Hangzhou
China, April 6-8, 2008; (ii) 8th WSEAS International
Conference on Electronics, Hardware, Wireless and
Optical Communications (EHAC’09), University of
Cambridge, UK, February 21-23, 2009; and (iii) 11th
WSEAS International Conference on Mathematical and
Computational Methods in Science and Engineering
(MACMESE’09), Baltimore USA, November 7-9, 2009. He was
invited as a Visiting Professor by Peking University and
National Taiwan University in the summer of 2008 and
2009, respectively. He is in the process of writing his
professional textbook: “Analog Circuit
Design---Analytical Synthesis Method”.
Prof. Chang is a senior member of the IEEE Circuits and
Systems Society.
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