Switching regulated power supply advantages: 

1, small power consumption, high efficiency. In the switching power supply circuit, transistor V in the excitation signal under the stimulus, it alternately works in the on - cut-off and cut-off - on switching state, the conversion speed is very fast, the frequency is generally from 20kHz to nearly 1000kHz. This makes the switching transistor V power consumption is very small, the power supply efficiency can be greatly improved, and the efficiency of the power supply can reach 90%. 

2, small size, light weight. From the schematic block diagram of the switching power supply can be clearly seen here without the use of bulky industrial frequency transformer. As a result of the adjustment tube V on the power dissipation is greatly reduced, and eliminates the need for a larger heat sink. As a result of these two reasons, so the switching power supply is small, light weight, the current 600W AC-DC switching power supply can do 133 * 78 * 41mm (palm size), weighing only 600 grams of "Hyperlinks Vox Nevo +600S>>.

3, the voltage regulator range is wide. The output voltage from the switching power supply is regulated by the duty cycle of the excitation signal, and the variation of the input signal voltage can be compensated by frequency modulation or widening. In this way, in the industrial frequency grid voltage changes, it can still ensure a more stable output voltage. Therefore, the switching power supply has a wide voltage regulation range and a good voltage regulation effect. In addition, the method of changing the duty cycle has two types: pulse width modulation type and frequency modulation type. Switching power supply not only has the advantage of a wide range of voltage regulation, but also more ways to achieve voltage regulation, designers can be flexible according to the requirements of the actual application of various types of switching power supply.