Basic Example of Applying Effective Component Selection Method

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00335476" target="_blank" >RIV/68407700:21230/19:00335476 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Basic Example of Applying Effective Component Selection Method

Original language description

When designing electronic circuits from discrete components, the finite number of component values in E series of preferred numbers is the limiting factor. For example, the E24 series contains just 24 component values per decade. If accuracy of the proposed circuit is required, use of E series of preferred numbers becomes limiting. The exact calculated value of the component must be rounded to the nearest value in the E series. This rounding creates the error of the proposed circuit parameters. For example, if an electronic filter needs to be designed, it will be out of tuning due to inaccurate part rounding. This paper deals with the error reduction. The error is caused by the necessity to use components from the E series of preferred numbers. The newly designed Effective Component Selection Method is used to minimize this error. The method works on the principle of multiple-stage optimization. The Effective Component Selection Method is applied on a very simple circuit, to design 21 different RC low pass filters. For comparison, rounding to the nearest value in the series method is also applied on the same example of the RC low pass filters design. The RC low pass filter's corner frequency fcor was chosen to be the filter's precision criterion. The results achieved by both methods were compared. The error of the designed circuit is calculated as the standard deviation of the difference between the wanted value and the resulting value. Compared with the Rounding to the nearest value in the series method, the Effective Component Selection Method reduces the error by 6 times.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů