There are two kinds of power supply, one is DC power supply and the other one is AC power supply

industrial supply Inner composition:
Now, XIMENG company mainly introduce the DC power supply, the function is that transfer the worse quality original ecological supply
such like charge power, to the higher quality DC voltage which can meet the equipment demand,the core of DC power supply is DC to DC transformer. so the DC power supply is sorted by DC to DC transformer.that is to say, the sort of the DC power supply is almost same as the sort of DC to DC transformer,the sort of DC to DC transformer is nearly the sort of DC power supply

industrial supply composition: composed by main circuit,power supply control circuit,testing circuit,auxiliary power

industrial supply working condition:
1.switch:electric power and electronic component working at on/off state not linear state
2.high frequency: electric power and electronic component working at high frequency not the low frequency near to power frequency
3.DC: power supply output DC not AC voltage

industrial supply working characteristic:
1.small volume,low weight:it's only 20~30% of linear power supply becuase without the power frequency transformer
2.small wattgae,high efficiency:power transistor working at on/off state, so the power waste of transistor is small,conversion efficiency is high, usually 60~70%, but the linear power supply is only 30~40%