Switch Example

This example demonstrates how to use a switch in a SPICE simulation. When the simSwitchFrequency property is set, an ideal switch will toggle at the specified frequency. A voltage probe is placed after the switch to observe the output.

export default () => (
    <board schMaxTraceDistance={10} routingDisabled>
      <voltagesource name="V1" voltage="5V" />
      <switch name="SW1" spst simSwitchFrequency="1kHz" />
      <trace from=".V1 > .terminal1" to=".SW1 > .pin1" />
      <resistor
        name="R1"
        resistance="1k"
        footprint="0402"
        connections={{ pin1: ".SW1 > .pin2", pin2: ".V1 > .terminal2" }}
      />
      <voltageprobe connectsTo={".R1 > .pin1"} />
      <analogsimulation
        duration="4ms"
        timePerStep="10us"
        spiceEngine="ngspice"
      />
    </board>
)

The simulation shows the voltage at the node after the switch. Since the switch is toggling at 1kHz, the voltage probe will show a 1kHz square wave going between approximately 0V and 5V.