If incoming power needs to be controlled an easy way to do that is with a switch.
Voltage selector switch circuit.
On the other hand if the power supply has a voltage selector switch based on the delon circuit for 115 230 v computer atx power supplies typically are in this category the selector switch would have to be put in the 230 v position and the required voltage would be 325 vdc 230 2.
If you were under the impression that switches simply turn circuits on and off.
Schneider electric maintained selector switch 3 position knob 2no 10a 600v xb4 series.
Interpower switches and voltage selector switches.
Simply defined a switch is a mechanical device used to open and close a circuit.
In the 120v only position the power of the two main windings are connected in parallel beyond the circuit breakers and full power can be obtained from the 30a 120v receptacle.
In addition to the on off switch many circuits contain switches that control how the circuit works or activate different features of the circuit.
Voltmeter selector switch wiring which was about the three phase voltage measuring and in which we did not talk about the neutral connection.
Most electronic circuits contain an on off switch.
One way to classify switches is by the connections they make.