Calculation of a common-emitter (CE) BJT amplifier stage

Plotting current-voltage characteristics (I-V curves). Operating point selection (Q-point selection). Determination of h-parameters. DC and AC calculation. Frequency response calculation
Ampflier BJT
The Amplifier BJT software is designed for the calculation of common-emitter (CE) BJT amplifier stages. The program's database includes approximately 5,000 foreign and domestic transistor models. Featuring flexible settings, the software allows you to specify any parameters and adjust the operating point (Q-point) position. Using the "detailed (step-by-step) solution" function, you can generate a comprehensive amplifier calculation report in WORD format.
Amplifier BJT is an educational tool designed to help you master the methodology for calculating BJT-based amplifying devices and gain practical skills with minimal time investment.

  • Amplifier BJT Versions

    Demo Version
    Free of charge, but subject to the following functional limitations: the "detailed solution" feature with report generation in MS Word format is unavailable and is only accessible in the licensed version.
    Licensed Version
    To use the licensed version, you must purchase an activation code (license key). The activation code remains valid for two months.
    ______________________________________________________________________

    Amplifier BJT System Requirements

    ______________________________________________________________________

    The Amplifier BJT software is designed to run on Windows OS. The program uses an integrated text block to display calculation results, while Microsoft Word is employed to generate detailed step-by-step calculation reports.
    The supported versions of Windows OS and MS Word are listed below.
    Operating System:
    Windows 7, 8, 10, 11
    Text Editor:
    Microsoft Word 2007, 2010, 2013, 2016, 2021, 2024
    ________________________________________________________

    Download and Activate Amplifier BJT

    ________________________________________________________

    Download Amplifier BJT

    Amplifier BJT Activation

    ________________________________________________________


  • Benefits of Amplifier BJT

    • Database of 5,000 transistor models, including both foreign and domestic (Soviet and Russian) manufacturers;
    • Detailed calculation reports in MS Word format;
    • Flexible configuration of all parameters;
    • Using the MathType equation editor in MS Word, Amplifier BJT helps format your solution with minimal time investment;
    • Amplifier BJT generates reports in .docx format, compatible with many popular editors, including MS Word, OpenOffice, and Google Docs;
    • Amplifier BJT helps students prepare for lab reports, course projects, and exams in "Fundamentals of Electronics" courses.

    Common-Emitter (CE) amplifier stage calculation includes:


    • Plotting I-V characteristics for the selected BJT model; 
    • Operating point (Q-point) selection; 
    • Load line construction; 
    • Calculation of transistor h-parameters at the operating point; 
    • DC analysis and determination of component values; 
    • AC analysis; 
    • Determination: Rin, Rout, re, rb, Ce, Сp;
    • Расчет частотных характеристик усилителя: fc, tu, td;
    • Расчет основных параметров усилителя: Ku, Ki, Kp, η.
    ________________________________________________________

    Help & Resources 

    ________________________________________________________

    Amplifier BJT User Guide


    Instructional Videos on Software Operation


    Calculation of a Common-Emitter (CE) Amplifier Stage


    ________________________________________________________

Made on
Tilda