Saturday, December 16, 2023

QSPICE - Learn how to use QSpice from the beginning

# Start to use Qspice textbook circuit models from ASICedu.com - Make sure to install QSPICE and unzip the Qspice_CMOSedu.zip (link) - Launch QSPICE - Open a schematic using the 'open' icon in the toolbar - Navigate to the Qspice model folder extracted from Qspice_CMOSedu.zip - Select a schematic corresponding to a book figure - Run the simulation by clicking the 'Green' icon in the toolbar menu - The simulation results will automatically plot in another Qspice window - To display some other signals, voltage or current: 1. make sure the '.save all' spice code is used in the schematic; 2. Right click the plot panel and select 'Add Window' to create a new panel; 3. Right click the new panel and select 'Add Plot' in the new panel; 4. Pick the voltage or current you like to plot and then click 'OK'. (On the top of 'Compose Expression to Plot', many math functions can be used) --- > Launch QSPICE image-20231216115834925 --- > Open a new QSPICE schematic image-20231216115938360 --- > Select the textbook circuit model image-20231216120058526 --- > Run the simulation image-20231216120236616 --- > Plot simulation results and Create a new window panel in the plot (Right click the current plot panel) ![image-20231216120703006](https://raw.githubusercontent.com/GalaxyGroot/imag4typora/main/2023/1216_12_08_41.png) --- > Add plot in the new panel (Right click the new panel) ![image-20231216120906887](https://raw.githubusercontent.com/GalaxyGroot/imag4typora/main/2023/1216_12_09_06.png) --- > Select another signal to plot in new panel and function table listed in the 'New Expression window' ![](https://raw.githubusercontent.com/GalaxyGroot/imag4typora/main/2023/1216_12_13_34.png) --- > Final Simulation Result Plot ![image-20231216121546282](https://raw.githubusercontent.com/GalaxyGroot/imag4typora/main/2023/1216_12_15_46.png)

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