Switching power supply can convert the input AC power supply (such as mains power) or DC power supply into the voltage or current required by the user through different forms of architecture, so that the output current is the current value of stable DC power supply, so that the overall voltage is at a standard voltage, which is provided to the equipment requiring fixed DC power supply, such as personal computer.
Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instruments and meters, medical equipment, semiconductor refrigeration and heating, air purifier, electronic refrigerator, liquid crystal display, LED lamps, communication equipment, audio-visual products, security monitoring, LED lamp belt, computer chassis, digital products and instruments.
Switching power supply is far superior to linear power supply in efficiency, volume and weight, so it has basically replaced linear power supply and become the main power supply form of power supply for electronic equipment. Only in some cases where the power is very small or the power supply voltage ripple is required to be very small, the linear power supply is still used.
