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The switching power supply is a regulated power supply widely promoted in modern times. It has the characteristics of high efficiency, wide voltage range, stable output voltage, etc. It is now widely used.
For example, the computer's ATX power supply, laptop power adapter, printer power supply, mobile phone charger, and so on. The regulated power supply is a voltage value at which the output voltage remains fixed as the load power changes. The switching power supply is also a regulated power supply, but the regulated power supply cannot be directly called a switching power supply.
The regulated power supply is a power supply that uses an output voltage of an electronic circuit to achieve a stable purpose, and has a series-type regulated power supply, a parallel-type regulated power supply, and a switching regulated power supply.
The common series regulator power supply is equipped with a power transformer, which has the advantages of stable output voltage and small ripple, but the voltage range is small and the efficiency is low.
The output voltage of the shunt regulated power supply is particularly stable, but the load capacity is very poor, and it is only used as a reference inside the meter.