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    3A 30V 90W Variable Linear DC Power Supply

    Favorable price variable linear DC power supply uses a large transformer to drop the voltage from AC to DC, with selectable 110V/220V±10% AC input, 3 digit LED display, 90W power, adjustable current 0 to 3 amp, voltage 0 to 30 volt. Using a variable DC power supply allows digital or analog control of the power supply output by a control system.
    SKU: ATO-DCPS303
    30-day Returns
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    Delivery date: 6-12 days

    Variable linear DC power supply is designed with low ripple and high precision to step down an AC input voltage to produce a lower DC output voltage, which can be used for scientific research, product development, laboratories, schools and electronic production lines.


    Model ATO-JK1303P
    Input Voltage 110V or 220V AC (+/- 10%)
    Output Voltage Range DC 0-30V
    Output Current Range 0-3A
    Output Power 90W
    Frequency 50Hz/60Hz
    Output Type Dual
    Display 3 digit
    Display Accuracy ≤ ±0.1%+2d
    Voltage Display Resolution 10mV
    Current Display Resolution 10mA
    Efficiency >65%
    Voltage Regulation
    Load Regulation (CV) 1×10-4+8mV
    Line Regulation (CV) 1×10-4+3mV
    Ripple & Noise (P-P) 0.5mV
    Temperature Coefficient 300PPm/℃
    Current Regulation
    Load Regulation (CC) ≤5mA
    Line Regulation (CC) 2×10-4+3mA
    Temperature Coefficient 500PPm/℃
    Protection Over Load and Over Voltage Protection
    Recovery Time ≤100µs
    Operating Ambient 0℃ to + 40℃/ 85%RH
    Storage Ambient -10℃ to + 80℃/ 80%RH
    Warranty 12 Months
    Size 290 (L) x 130 (W) x 165 (H) mm
    Weight 4kg


    3A 30V variable linear DC power supply detail

    Tips: What is the significance of the ripple voltage in a variable linear DC power supply?

    The ripple voltage in a variable linear DC power supply is a crucial parameter that reflects the quality of the output. It represents the AC component superimposed on the otherwise steady DC output. Excessive ripple can lead to undesirable fluctuations in the voltage supplied to electronic circuits, potentially causing performance issues or damage. Minimizing ripple is essential for applications requiring stable and clean DC power, such as in precision instrumentation, audio equipment, and sensitive electronic devices. A low ripple voltage ensures a more constant and reliable power source, contributing to the overall efficiency and accuracy of the power supply. Engineers and designers aim to reduce ripple through careful circuit design, filtering, and regulation techniques to meet the stringent requirements of various electronic systems.

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