In this section of our website we have collected and created various resources regarding circuit theory, circuit analysis using theoretical calculations and circuit simulation as well as circuit design using the circuit designer and optimization capabilities of TINA and TINACloud.
Note that our resources are under continuous extension, development and update. Nearly every day new topics and simulations are added. We suggest to stay tuned and check the news regularly.
we will present how to create and simulate a “Capacitance multiplier” circuit using TINA.
A “capacitance multiplier” circuit can increase the effective value of a small capacitor C1 to a much larger value.
The capacitance seen at Vout is: Cout = C1 * R1/R3. The output capacitance can be verified by placing an AC source in series with a resistor tied to Vout and running an AC frequency response analysis.
We will show later on that the circuit behaves as if the C1 capacitor were multiplied by 1000, in the the R1C1 low pass circuit.