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    48V DC 1000W Switching Power Supply

    Upgrade switch power supply, 48V DC 1000W, with shortage protection, overload protection, over-voltage protection. Wide input voltage range, steady and precise output voltage. Great power transformer for electronic equipment, Led Lighting, home appliance etc.
    SKU: ATO-SMPS-1000-48
    30-day Returns
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    Delivery date: 6-12 days


    • Excellent magnetic core enameled wire, high temperature resistance
    • 1000W switching power supply with high voltage resistance, low loss, high capacity
    • Iron-silicon aluminum magnetic ring, lower working temperature
    • Highly efficient heat dissipation, low fan noise
    • High working efficiency, stable output
    • Exquisite appearance, small size, stable performance


    Model ATO-MS-1000-48
    DC Voltage 48V
    Rated Current 20.8A
    Rated Power 1000W
    Ripple & Noise <150mVp-p
    Voltage Accuracy ±1%
    Voltage Adjustment Range ±10%
    Load Adjustment Rate <±0.5%
    Line Adjustment Rate <±0.5%
    Input Voltage Range 180~264VAC; 254~370VDC
    Frequency Range 47~63Hz
    Efficiency (Typ.) >85%
    AC Current 220VAC, 8A
    Inrush Current 60A 230VAC
    Setup, Rise, Holdup Time 200ms, 50ms, 20ms: 230V AC
    Protection Overload 105~135% rated output power
    Protection type: Constant current limiting, recovers automatically after fault condition is removed.
    Over temperature RTH3: Fan is always running, ≥90°C output shut down.
    Environment Working Temperature -10 ~ +50℃
    Working Humidity 20~90% RH
    Storage Temperature -20~+85℃
    Storage Humidity 10~95% RH
    Safety & EMC Withstand Voltage I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
    Leakage Current I/P-O/P, <6mA at 1.5kVAC; <1.5mA at 220VAC
    Isolation Resistance I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC
    Others Dimension 291*132*68mm (L*W*H)
    Weight 2.4kg

    Dimensions (Unit: mm)

    1000W switching power supply dimension

    1000W switched mode power supply dimension

    1000W diagram

    Tips: What should I do if the switching power supply makes noise?

    1. Add filter
      Adding a filter is a very common way to suppress switching power supply noise. If the power supply is disturbed by external disturbances such as lightning strike and artificial noise, the malfunction will cause great disturbance to the system. If a filter is connected to the AC input, the generation of this disturbance can be effectively reduced, and the disturbance can be reduced in time. The noise that occurs inside the switching power supply does not leak out from the input.
    2. Grounding measures
      The purpose of grounding the power supply is for safety reasons, and the electromagnetic compatibility problem can be effectively solved after the grounding of the power supply. Reducing Electromagnetic Disturbance. A good grounding system plays a vital role.
    3. Other measures
      In addition to the above measures to effectively suppress the noise of the power supply, we can also start to reduce the noise impact of the switching power supply in terms of the position and direction of component installation, the overall configuration of the system circuit, etc.

    To sum up, the noise of switching power supply is affected by many factors. In order to effectively suppress the noise of switching power supply, the relevant staff should pay attention to the analysis of noise of switching power supply, fully grasp the overall situation of the switching power supply, carry out effective management, promote the upgrading of the switching power supply, and improve the use function of the switching power supply.


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