Switching Adapter 12v 3a

Description

Step up 12v dc to 240vac transformer for Switching adapter using.transformers are used when dealing with AC voltages. They don't work with DC voltages. But this is fine, because AC voltages are used widespread, as all household outlets operate from AC voltages. And transformers still are used with DC power because the AC voltages that transformers output can be converted to DC voltages. So transformers are used when dealing with AC or DC power. But chiefly they deal directly with AC power.

AC adapter 12v 300ma Specification

Voltage: 100-240VAC

Frequency: 50-60Hz

Output Specification

Voltage:12V

Current:0.8A

Power:12W

Plug Type: 5.5mm x 2.5mm

Turn On Time:15-30mS

Voltage Accuracy: ±3%

Current Accuracy: ±3%

Hi-pot Test: 3750VAC, 60S, 5mA max

Lightning surge: up to 1000V (accept 3000V)

Leakage Current: 0.25mA max

Burn-in Test: rate load, 40±3℃, 4 hours

Operating Temperature:0-40℃

Storage Humidity 5%-95%RH

Storage Temperature   -20~+80℃

Temperature Coefficient     0.05%/℃

matters needing attention:

First of all,Switching Adapter 12v 3a  the nominal voltage of the general power supply refers to the open circuit output voltage, that is, the voltage when there is no load and no current output, so it can also be understood that this voltage is the upper limit of the power supply output voltage.

When active voltage stabilizing elements are used inside the power supply, even if the mains voltage fluctuates, its output is also a constant value. For the power supply equipped with small transformers on the market, such as Walkman, if the mains power fluctuates, the output of the power supply will not fluctuate.

Generally speaking, the real no-load voltage of ordinary power adapter is not necessarily completely consistent with the nominal voltage, because the characteristics of electronic components cannot be completely consistent, so there is a certain error. The smaller the error, the higher the consistency requirements of electronic components.

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