simulating circuits using qucs, the quite universal circuit simulator doug reece, ak4ao may 22, 2015...

10
Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

Upload: warren-copeland

Post on 22-Dec-2015

213 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

1

Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator

Doug Reece, AK4AOMay 22, 2015

Page 2: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

2

About QUCS

• Free software!• Provides CAD tools for drawing schematic

diagrams• Simulates the behavior of the circuit represented

by the schematic– DC– AC

• Frequency domain• Time domain

– Digital logic

Page 3: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

3

Uses for QUCS

• Students/hobbyists: Experiment with various types of electronic circuits without components and lab instruments

• Professionals: Analyze circuit performance before building

Caution: Models don’t capture all aspects of a real circuit: stray capacitance/inductance, hum pickup, etc.

Page 4: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

4

DC Circuit: Voltage Divider

Page 5: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

5

Voltage Divider with Parameter Sweep

Page 6: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

6

AC Circuit – Frequency Domain

Page 7: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

AC Circuit – Time Domain

7

Page 8: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

8

Digital Logic Simulation

Page 9: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

9

Some other QUCS Features

• Libraries of real devices• Filter design • Attenuator design• Equations, including differential equations• Optimization

Page 10: Simulating Circuits Using QUCS, the Quite Universal Circuit Simulator Doug Reece, AK4AO May 22, 2015 1

10

Resources

• URL for software (MAC, Windows, various Linux flavors, source code) http://qucs.sourceforge.net/

Note: Windows version loads several programs• Tutorials:

http://qucs.sourceforge.net/docs.html