LED Display Power Supply
LED Display Power Supply
Introduction of led display power supply:
Three Function of led display power supply:
1. Overload protection: Power protection between 110 to 150% range of rated overload, when output hiccups, disconnect the power to reduce the load, and give power again to recover normal output.
2. Over voltage protection: power protection between 115 to 150% range of output voltage. Power inside will limit the max output voltage, disconnect power, after solve the problem, then can give power again.
3. Short circuit protection: when output short circuit, power protection.
Use environment of led display power supply:
Work environment temperature: -20℃~+50℃
Work humidity: 20~90%RH
Technical Parameters of led display power supply:
Input parameters
|
|
Input voltage
|
187~253V AC
|
Input voltage frequency range
|
47-63HZ
|
Input current
|
2.5A/230V AC
|
Input surge
|
Cold start the maximum 30A
|
Efficiency
|
Typical value 80%
|
Leakage current
|
≤3.5mA/240VAC
|
Output parameters
|
|
Output voltage
|
5V DC
|
Rated output current
|
40A
|
Output current range
|
0~40A
|
Ripple and noise
|
150mVp-p
|
Output voltage regulation range
|
4.5~5.5V
|
Output voltage regulation
|
±0.5%
|
2.9 the output load regulation
|
±1%
|