Voltage sensor

Measures voltage between two electrical nodes without loading the circuit.

  • signal
  • electrical
  • Gradara equations
  • 3 ports
BlockVoltage sensorKindvoltageSensorLibraryElectrical

Description

Measures the voltage between two nodes and outputs it as a signal. It draws no current, so it does not load the circuit.

Example

RC and RL transients A 10 V step charges a capacitor through a resistor, and another builds current in an inductor through a conductor.

Step 10 VR 1 kΩC 100 µFCapacitor voltageGroundStep 10 V (RL)G 0.1 SInductor currentL 1 HGround (RL)
In Gradara, select a Voltage sensor block and press F1, then choose Open example. It opens as a new model in My models, ready to run.

Also in this example:Current sensorGroundResistorCapacitorInductorConductorStep voltage

Ports

Outputs 1

  • Vysignal · V

    Measured voltage p.v − n.v, in volts.

Conserving terminals 2

  • +pelectrical

    Positive measuring pin.

  • −nelectrical

    Negative measuring pin.

Equations

Modelica
y = p.v − n.v
p.i = 0
n.i = 0

Assumptions and limitations

  • Ideal: infinite input impedance, no bandwidth limit or noise.

Used in

These larger examples use it too. Open them from Examples in the app.

  • Buck converter · Ideal switches
  • EV drivetrain
  • 480 VAC → 24 VDC flyback

See also

Select a block in Gradara and press F1 to open its page offline.