A current-mode circuit for analogue synthesis of some special functions

Autor:	Osama Oglah Faris, Muhammad Taher Abuelma'atti
Rok vydání:	2004
Předmět:	Hyperbolic function Trigonometric integral Function (mathematics) Topology law.invention Exponential function Error function law Special functions Struve function Electronic engineering Electrical and Electronic Engineering Resistor Mathematics
Zdroj:	International Journal of Electronics. 91:653-663
ISSN:	1362-3060 0020-7217
DOI:	10.1080/00207210412331330314
Popis:	A new circuit approach for realizing analogue synthesizers of a wide range of special functions is proposed. The proposed technique is based on approximating a special function using exponential approximations. The circuit is flexible and can be programmed to produce a wide range of special functions with reasonable accuracy. The proposed circuit uses transistors, resistors, switches and current sources and is suitable for integration. Simulation results obtained from the synthesis of the error function erf(x), the sine integral Si(x), the sinh integral Shi(x), the integrals of the Struve function , and the modified Struve function , are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::97b633881a5add87504e5d63330349e6 https://doi.org/10.1080/00207210412331330314 Zobrazit plný text záznamu