Class B Power Amplifier Design

Required to design a power amplifier class B. Load is 15 Ohms, with 1 Amps maximum load current at 1 kHz. Transistors to be used are BD139/BD140. +15/-15 Volts supply voltages.

by leon989
July 02, 2022

1 Answer

Answer by zerodbu

I would start with the book "Audio Power Amplifier Design Handbook" by Douglas Self. The book contains a reference design that could be adapted to your requirements. If your design must be from discrete components (like the BD139/140), achieving excellent distortion and stability performance is not trivial.

+1 vote
by zerodbu
July 10, 2022

Your Answer

You must log in or create an account (free!) to answer a question.

Log in Create an account

Go Ad-Free. Activate your CircuitLab membership. No more ads. Save unlimited circuits. Run unlimited simulations.

Search Questions & Answers

Ask a Question

Anyone can ask a question.

Did you already search (see above) to see if a similar question has already been answered? If you can't find the answer, you may ask a question.

About This Site

CircuitLab's Q&A site is a FREE questions and answers forum for electronics and electrical engineering students, hobbyists, and professionals.

We encourage you to use our built-in schematic & simulation software to add more detail to your questions and answers.

Acceptable Questions:

  • Concept or theory questions
  • Practical engineering questions
  • “Homework” questions
  • Software/hardware intersection
  • Best practices
  • Design choices & component selection
  • Troubleshooting

Unacceptable Questions:

  • Non-English language content
  • Non-question discussion
  • Non-electronics questions
  • Vendor-specific topics
  • Pure software questions
  • CircuitLab software support

Please respect that there are both seasoned experts and total newbies here: please be nice, be constructive, and be specific!

About CircuitLab

CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.