What is the design principle of switching power supply?

Power switch is a device used to control power input. It is usually controlled by buttons or manual switches, or by an automatic control system.

When designing the power switch, there are some factors to consider:

1. Rated current: the maximum current that the power switch needs to be able to withstand.

2. Rated voltage: the maximum voltage that the power switch can withstand.

3. Power: the maximum power that the power switch can bear.

4. Temperature range: In what temperature range can the power switch work normally?

5. Environmental conditions: Under what environmental conditions can the power switch work normally.

6. Size and weight: The size and weight of the power switch should be suitable for the application place.

7. Price: The price of the power switch should be reasonable.

When designing the power switch, these parameters need to be determined according to the requirements of the application.