LTspice is a relatively easy to use program for designing and testing analog and mixed electronic circuits. The advantage of the program is the speed, huge library of elements and simplicity of creating layouts. When designing the system, you can use elements supplied with the program, download additional elements from the Internet, enter parameters manually or design the modules yourself.

In addition to the basic elements, the component library also includes voltage stabilizers, power sources with various functions, comparators, many types of diodes and so on. Graphical element representations can be moved and rotated without losing connections, labels can also be added to the circuit diagram and the finished drawing can be printed. In the system simulation mode it is possible to check the voltage and current intensity at various points in the system and view the changes in current parameters over time on charts.

For the basic test it is enough to specify the simulation time (in seconds), but the possibilities of the program do not end there.