First RC Circuit

Quick tutorial to validate installation, schematic connectivity, and simulation flow.

Objective

Build a simple RC low-pass circuit and confirm the exponential Vout response.

Topology

• Vin (source)
• R1 = 1kΩ
• C1 = 1uF
• GND

Connections:

1. Vin+ -> R1
2. R1 -> Vout
3. Vout -> C1
4. C1 -> GND
5. Vin- -> GND

Step-by-step in the GUI

1. Create a new project.
2. Insert Voltage Source, Resistor, Capacitor, and Ground.
3. Wire the topology above.
4. Set R1 and C1 parameters.
5. Configure source as step or pulse.
6. Open Simulation Settings and use:
7. Start time = 0
8. Stop time = 10ms
9. Step size = 1us
10. Output points = 10000
11. Click Run.
12. In the viewer, plot V(vout) and V(vin).

Expected Result

• V(vout) rises exponentially.
• τ = R × C = 1k × 1u = 1ms.
• Around 5τ (about 5ms), output is close to final value.

Validation Checklist

• Simulation finishes without errors.
• V(vout) shows consistent first-order behavior.
• Changing R or C shifts τ as expected.