DC programmable power supply Fnirsi DPS150 0-30V 0-5A

The Fnirsi DPS150 is a compact, programmable DC laboratory power supply offering adjustable output from 0 to 30 V and 0 to 5 A. Designed for bench, workshop and field use, it provides digital regulation, a color IPS display for real-time readouts, multiple protections and flexible input options including DC and USB-C PD/QC sources.

Advantages

The unit combines precise voltage and current setting with low output ripple and digital stability, ensuring reliable powering of sensitive circuits. Its aluminum chassis and thermally conductive silicone improve heat dissipation for stable operation under load. A 2.8-inch IPS display with numeric and graphical modes, rotating orientation and six user presets support convenient monitoring and quick recall of common settings. Multiple output connectors and robust screw terminals enable secure connections.

Suitable for

• Electronics testing and prototyping
• Repair and service bench work
• Educational labs and training
• Field work where DC or USB-C PD power sources are used

Key specifications

• Output voltage range: 0–30 V
• Output current range: 0–5 A
• Maximum output power: 150 W
• Input voltage range: DC 5.0–32 V (supports USB‑C PD/QC power sources)
• Display: 2.8 in IPS, 320 × 240 px, 90° rotation
• Resolution: Voltage 10 mV; Current 1 mA
• Setting accuracy: Voltage ≤0.1% ±5 mV; Current ≤0.1% ±3 mA
• Reading accuracy: Output voltage ≤0.1% ±10 mV; Output current ≤0.1% ±5 mA (0–3.5 A)
• Ripple (noise): < 20 mV
• Thermal design: aluminum chassis with thermally conductive silicone (3.0 W/m·K)
• Operating environment: 0 °C – 40 °C, relative humidity up to 75% RH
• Dimensions: 106 × 76 × 28 mm; Weight: ~178 g

How to use

Connect a suitable DC or USB‑C PD/QC power source within the input range (5–32 V). Attach the output leads using the provided cables or compatible 4 mm banana plugs, fork terminals or stripped copper wire into the screw terminals. Power on the unit and set the required voltage and current using the front panel controls; choose between numeric or graphical display modes and save up to six presets for quick recall. Monitor voltage, current, power and energy values on the screen during operation.

Usage recommendations

Use a power source capable of supplying sufficient current and observe the device’s thermal limits during prolonged high-power operation. Enable built-in protections and verify correct polarity before connecting sensitive equipment. For battery-powered or field operation prefer USB‑C PD sources with stable output.