A prototype framework for knowledge-based analog circuit synthesis

Harjani, Ramesh; Rutenbar, R.A.; Carley, L.R.

doi:10.1145/62882.62956

Cited by 10 publications

(13 citation statements)

References 11 publications

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“…The mechanisms used to implement the synthesis system are as widely varying as the types of synthesis tasks. The next several paragraphs discuss related synthesis work in digital domains, but work is also being done in other domains, such as: analog circuit design [20] and mechanical engineering [16].…”

Section: Contrasts With Related Systemsmentioning

confidence: 99%

The MICON system for computer design

Birmingham

Gupta

Siewiorek

1989

Proceedings of the 1989 26th ACM/IEEE Conference on Design Automation Conference - DAC '89

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The MICON system is an integrated collection of programs which automatically synthesizes small computer systems from high level specifications. The system address multiple levels of design, from logical through physical, providing a rapid prototyping capability. Two programs form MICON's nucleus: a know ledge-based synthesis tool called Ml; and, an automated knowledge acquisition tool named CGEN which is used to teach Ml how to design. Other tools in the MICON system are an integrated database and associated data management tools. The system is fully functional, having been used to generate working designs. This paper describes the architecture and operation of the MICON system.

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Section: Contrasts With Related Systemsmentioning

confidence: 99%

The MICON system for computer design

Birmingham

Gupta

Siewiorek

1989

Proceedings of the 1989 26th ACM/IEEE Conference on Design Automation Conference - DAC '89

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“…In recent years, rapid advances have been made in automating the design of analog and mixed analog/digital circuits [1,2,3,4,5,6]. The general approach is to use building blocks which may be stored in the form of parameterized generators or as entries in macrocell or standard cell libraries.…”

Section: Introductionmentioning

confidence: 99%

“…An efficient design of optimal op amps is thus a corner-stone of a design environment for many applications. Several methods concerning the automated design of op amps have been published [1,6,7,8,9]. An optimization-based approach is based on algorithmic optimization and circuit analysis techniques.…”

Section: Introductionmentioning

confidence: 99%

Automatic Synthesis of Operational Amplifiers based on Analytic Circuit Models

2003

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An automatic synthesis tool for CMOS op amps (OPASYN) has been developed. The program starts from one of a number of op amp circuits and proceeds to optimize various device sizes and bias currents to meet a given set of design specifications. Because it uses analytic circuit models in its inner optimization loop, it can search efficiently through a large part of the possible solution space. The program has a SPICE interface that automatically performs circuit simulations for the candidate solutions to verify the results of the synthesis and optimization procedure. The simulation results are also used to fine-tune the analytic circuit descriptions in the database. OPASYN has been implemented in Franz Lisp and demonstrated for three different basic circuits with a conventional 3 µm process and a more advanced 1.5 µm process. Experiments have shown that OPASYN quickly produces practical designs which will meet reasonable design objectives.

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“…Several approaches to design automation of analog circuits have been reported in literature since the mid eighties [2][3][4][5][6][7][8][9][10][11][12][13]. They range from conventional algorithmic systems to knowledge based design tools, offering varying capabilities and performance.…”

Section: Introductionmentioning

confidence: 99%

“…Only very few analog design systems really deal with hierarchy as a design paradigm instead of sizing fixed overall schematics, embed standard tools like simulators or provide device and topology optimization capabilities as a feedback from a performance analysis. Well-known representatives of different approaches to the design automation of analog circuits are IDAC (CSEM, [2,3]), BLADES (AT&T, [4,5]) and OASYS (CMU, [6,7]). With the exception of IDAC none of the above systems has evolved from a research prototype to a commercial system.…”

Section: Introductionmentioning

confidence: 99%

An analog circuit design environment based on cooperating blackboard systems

Milzner

1991

Appl Intell

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A novel approach to design automation for analog circuits is presented, The prototype implementation--OASE--has been realized as a set of cooperating expert systems with blackboard architecture. The circuit specific knowledge bases use hybrid representation schemes and are strictly separated from an execution engine containing the necessary control knowledge. This alleviates the knowledge acquisition process as well as the extension and maintenance of existing knowledge. OASE has been developed as a design assistant, featuring different levels of interactivity, a hierarchical design style and fully embedded algorithmic standard tools. In its current version it is able to design a broad range of different CMOS operational amplifiers.

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A prototype framework for knowledge-based analog circuit synthesis

Cited by 10 publications

References 11 publications

The MICON system for computer design

The MICON system for computer design

Automatic Synthesis of Operational Amplifiers based on Analytic Circuit Models

An analog circuit design environment based on cooperating blackboard systems

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