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Ecalc: A Simple And Powerful Electronics Calculator

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1998 Annual Conference


Seattle, Washington

Publication Date

June 28, 1998

Start Date

June 28, 1998

End Date

July 1, 1998



Page Count


Page Numbers

3.227.1 - 3.227.8



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Paper Authors

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Abraham Michelen

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NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

Session 2520

ECALC: A Simple and Powerful Electronics Calculator

Abraham Michelen Hudson Valley Community College Troy, NY 12180

ABSTRACT: This paper describes ECALC, an interactive Windows-based software package. The program allows the user to solve DC-bias and SMALL-SIGNAL am- plifier circuits without the need to draw the circuit diagram. Customarily, the simu- lation of electronic circuits rely on programs which are either expensive or time con- suming to use for simple calculations. ECALC addresses these problems by providing a simple electronics calculator with a powerful graphical user interface.


ECALC v2.0 is a menu-driven windows-based1 interactive program for the solution of known electronic circuits. With ECALC you can solve the basic types of transistor circuits found in a typical analog electronics course. The main type of calculations that ECALC can perform are:

• DC Bias calculations, and • Small-signal amplifiers calculations

for electronic circuits with one transistor (one stage).

In its present version ECALC is capable of analyzing circuits composed of bipolar junction transistors (BJT) and some members of the FET family of transistors, namely junction field-effect transistors (JFET), depletion-enhancement metal oxide semiconductor field-effect transistors (DE-MOSFET), and enhancement metal oxide semiconductor field-effect transistors (E-MOSFET). Future versions of the program will include other important types of semiconductor devices and other types of analysis (i.e., frequency response, multistage amplifiers, etc.)

The circuits that ECALC addresses are the typical circuits found in standard electronic books like Electronic Devices and Circuit Theory by Robert L. Boylestad and Louis Nashelsky [1], and Electronics Devices by Thomas L. Floyd [2].

To use the program you have to be familiar with the notation and names used in those books (or an other similar book), because ECALC does not have the capability to allow

1 There are two versions available at this moment: A MS Windows version that is described in this paper, and a DOS version with a window interface.

Michelen, A. (1998, June), Ecalc: A Simple And Powerful Electronics Calculator Paper presented at 1998 Annual Conference, Seattle, Washington. 10.18260/1-2--7062

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