LTspice, a few simple circuits.
This page contains several simple circuits for operation on LTspice.
As always simulation will not show all aspects of the performance of the real circuit. There will be circuit parasitics which are not included in these simulations.
The categories covered include, an RC circuit, an LC circuit, op amps and comparators, a couple of digital gates, and some instructions to create your own simulations.
in case of any difficulties downloading, the next file is the circuits in this section as a ZIP file.
![this section as a zip file]()
A resistor capacitor (RC) circuit.
![RC circuit]()
![RC circuit variable_freq]()
![RC circuit frequencyresponse]()
An inductor capacitor (LC) circuit.
a circuit with Rs and Cs to form a filter is great for processing low power signals, but what if you are processing a signal at a significant power level.
the resistor will dissipate power, this wastes power and also the resistor has to be big and maybe needs a heatsink, the solution is an LC filter.
![LC circuit]()
![LC circuit variable_freq]()
![LC circuit frequencyresponse]()
Throw a circuit together yourself.
![throw a circuit together yourself instructions.asc]()
![throw a circuit together yourself instructions and circuit.asc]()
![throw a circuit together yourself adding more components.asc]()
Simple op amp and comparator circuits
![op_amp.asc]()
![comparator.asc]()
Simple logic gate and flip flop circuits
![logic_gates.asc]()