Once you have completed the Installation of LTspice, click on the Icon or shortcut pasted on the desktop or select it from the windows menu. We will see how to a draw a circuit using Ltspice toolbar ..
Begin a New Circuit using Ltspice toolbar
You can create new circuit
Now you will see the below page
Drawing the Circuit
- Ltspice Toolbar Summary – In the below image you can see the tools available in your Ltspice toolbar.
- Adding a GND – This is very important. You can not do any simulation on the circuit if you don’t have a ground. To place a ground, you can
- Getting the Other Parts – The next thing that you have to do is get some or all of the parts you need. This can be done by
- pressing “F2”; or
- going to “Edit” and selecting “Component…”. Once this box is open, select a part that you want in your circuit.
This can be done by typing in the name or scrolling down the list until you find it.
- Some of the common part you will find here
- res – resistor
- cap – capacitor
- ind – inductor
- diode – diode
- voltage – any kind of power supply or battery
- Any this which contains the symbol  is a library, which contains many parts.
- Rotating and Mirroring – Some times you will have to rotate or mirror the parts to fit them in the circuits nicely. You can do it by pressing “Ctrl+R” before placing the part. See the below image showing the same part with different orientation.
- Placing the Parts
- You should have most of the parts that you need at this point.
- Now, all you do is put them in the places that make the most sense (usually a rectangle works well for simple circuits). To move parts, click on the ‘move’ icon, and then you may select parts and drag them where you want them. (When you have a part selected for a move, you can rotate or reflect it as well.)
- If you have any parts left over, just select them and press “Delete”.
We will see wiring up a circuit in the next post.
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