How to design AM modulator circuit using transistor
In this video, we demonstrate how to design an AM modulator circuit using a transistor with Proteus simulation software. You'll learn step-by-step how a single BJT transistor can be configured to perform amplitude modulation (AM) — a fundamental technique in radio communication systems.
🔧 What You'll See in This Proteus Simulation:
Circuit schematic of a transistor-based AM modulator
How to set up the modulating signal (audio/information) and carrier signal (RF)
Real-time simulation showing the modulated output waveform
Oscilloscope views: modulating signal, carrier, and resulting AM wave
Adjusting bias and component values for proper modulation index
Practical tips for transistor selection (e.g., 2N3904, BC547) and component values
📡 Applications:
AM transmitters for radio communication
Signal generation for RF projects
Learning foundation of modulation techniques
Prototyping for hobbyist and educational purposes
📖 Detailed Blog Post:
For circuit diagrams, component calculations, and in-depth explanations, visit the full tutorial on ee-diary.net:
🔗 How to design AM modulator circuit using transistor
https://www.ee-diary.net/2021/12/how-...
🛠️ Related Resources:
AM Modulator Using Transistor
https://www.ee-diary.net/2021/12/how-...
Simple Amplitude Modulation (AM) circuit using Single Diode Modulator
https://www.ee-diary.net/2021/12/simp...
Basic BJT Differential Amplifier Construction and Analysis
https://www.ee-diary.net/2023/03/basi...
AM modulator using MC1496 modulator (Standard AM)
https://www.ee-diary.net/2022/09/am-m...
• AM Modulator using MC1496
https://ee-diary.blogspot.com/2021/12...
🎓 Who Is This For?
Electronics engineering students
RF and ham radio enthusiasts
Hobbyists learning analog circuit design
Anyone preparing for projects or exams in communication systems
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💬 Questions?
Drop them in the comments below — I'll be happy to help!
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