Brand: BELIKY
Product Name: 12V30A Ultra-Slim Power Supply
1. Introduction to the Main Features of the Power Supply:
The power supply size is: 210*80*30MM;
(2) Power supply specifically designed for LED display: Features small size, high efficiency, stable operation, and high reliability. The power supply has over- and under-voltage protection, output overvoltage protection, output current limiting, output short-circuit protection, and over-temperature protection;
(3) The power supply uses a synchronous rectification circuit to greatly improve the efficiency of the power supply and save energy consumption.
II. Product Main Specifications
Total Output Power (W) Input Voltage Range
（Vac）Output Voltage
Output Current Range (A) Stable Voltage Accuracy Ripple and Noise (mVp-p)
200200-240+5.00-40.0±2% ≤ 110
SequenceItemTechnical IndicatorsUnitNote
Working temperature: -20-55°C
Storage temperature: -10 to 80°C
Relative Humidity 3: 10-90%
4. Cooling method: Natural cooling
5 atmospheric pressure 80-106kPa
Altitude 4000m
Section Three: Electrical Characteristics
1 Input Characteristics
Sequence No. Item Technical Requirements Units Notes
1 Rated Input Voltage: 220Vac
Input voltage range: 200-240Vac
3 input frequency range 47-63Hz
4 Efficiency ≥ 81% (Vin=220Vac) at full load output (under normal temperature)
5 Power Factor ≥ 0.5, rated input voltage condition, output full load.
Maximum Input Current ≤ 3.5A
7 Start-up Impact Current ≤ 60A for Cold Machine State Test
2 Output Characteristics
Sequence No. Item Technical Requirements Units Notes
Output Voltage Rating: +5.0Vdc

2 Output Current Range: 0-40.0A
Output voltage adjustable range: 6-5.4Vdc
4 voltage regulation ±1% VO while testing with light, half, and full loads, no cross modulation.
5 Load Adjustment Rate ±1% VO
6 Voltage Stability Accuracy ±2% VO
7 output ripple and noise ≤ 110mVp-p, rated input, output full load, 20MHz bandwidth, load end with 47μF capacitor.
8-second startup output delay ≤ 3000ms
Output hold time ≥ 10ms, Vin = 220Vac test
10 output voltage rise time ≤ 100 ms
11 Switch-on and switch-off overcharge ±5% VO test conditions: Full load, CR mode
12 Output Dynamic Voltage Variation Less Than ±8% VO; Dynamic Response Time ≤ 250us LOAD 0%-100%
3 Protection Features
Sequence No. Item Technical Requirements Units Notes
5-output current limit protection point 43-52A HI-CUP, self-recovering from hiccups, avoids damage to the power supply after a long-term short circuit.
6 Output Short-Circuit Protection ≥ 50A
Note: After the circuit is restored, the power supply is disconnected from the mains for ≥2S, and then power is re-applied to restore normal operation of the power supply.