FNIRSI DPS150 PD Adjustable Power Supply

Whether you’re a professional electronics engineer, repair devices in your home workshop, or work on your own DIY projects—the FNIRSI DPS150 PD provides you with a stable and precise power source. It combines high output power with exceptional regulation accuracy, extensive programming features, and a clear display that makes it easy to monitor all parameters. Its compact design means the unit fits easily into any workspace, and its extensive set of safety features allows you to safely power even sensitive electronic circuits. It’s a versatile tool designed with convenience, precision, and reliability in mind.

FNIRSI power supply with a silver housing, raised display screen, and two front output jacks.

Stable Power Supply and Exceptional Precision

The power supply offers an adjustable output voltage of up to 30 V, a current of up to 5 A, and power reaching 150 W, making it suitable for a wide range of applications—from testing components to servicing electronic devices. Adjustment accuracy of 0.01 V and 0.001 A allows for precise tuning of parameters to current needs, while support for constant voltage (CV) and constant current (CC) modes ensures full control over the power supply. An additional advantage is the low ripple level, not exceeding 20 mV, and the absence of voltage overshoot during parameter changes, which ensures safe and stable operation even with delicate electronic components.

Digital power supply with a 5.00 V display screen, black wires, and alligator clips on a workbench mat.

Advanced Features

The FNIRSI DPS150 PD supports power delivery via PD, QC, and DC interfaces, offering great flexibility in configuring the workstation. The programmable output allows you to easily adapt the device to specific applications, and the ability to save six predefined voltage and current profiles significantly speeds up daily work. The power supply also records information on energy consumption and capacity, allows for software updates, tracks parameter trends in graph form, displays real-time data, and enables convenient management of saved settings. You can also switch the interface language between English and Chinese and choose from two display styles.

An adjustable power supply with a screen and four different views of the measurement interface displayed above it.

Easy-to-read screen and broad compatibility

The 2.8-inch color IPS screen with a four-digit display ensures excellent readability of the information shown, and the ability to tilt it up to 90° allows you to comfortably view parameters from various angles. You can switch between the classic numerical view and graphs showing the power supply’s operating characteristics, choosing the display mode best suited to your current task. The device is compatible with 4 mm banana plugs, U-type terminals, and copper wires, allowing you to easily connect it to a wide range of devices, modules, and electronic circuits.

A close-up of the power supply’s front panel with the screen, banana jacks (red and blue), and a connected black wire.

Safety and portability in every situation

Safe operation is ensured by as many as eight protective mechanisms that safeguard the device against, among other things, excessive voltage and current, short circuits, and overheating. Efficient cooling relies on high-quality thermally conductive silicone with a thermal conductivity of 3.0 W/m·K, which quickly dissipates heat from the components, while the aluminum housing further aids in heat dissipation, ensuring quiet and efficient operation. The entire unit is housed in a lightweight, compact design that takes up little space on a desk and is ideal for use in laboratories, service centers, and in the field.

A silver power supply with a raised screen, two wires (red and black) in the jacks, and another device in the background.

Included

adjustable power supply
cables with alligator clips x2 (black and red)
micro USB cable
user manual

Manufacturer	FNIRSI
Model	DPS150 PD
Display	2.8” (320 x 240)
Input	DC voltage 5.0 V–32 V, current 100 mA–5 A, support for PD and QC, and compatibility with power banks
Output	Voltage 0–30 V, current 0–5 A, power 0–150 W
Resolution	Voltage 10 mV, current 1 mA
Measurement Accuracy	Voltage < 0.1% + 5 mV, current < 0.1% + 3 mA
Reading Accuracy	Input voltage < 0.2% + 5 mV, output voltage < 0.1% + 10 mV, output current < 0.1% + 10 mV (0–3.5 A)
Load regulation	0.49%
Full-Load Efficiency	96.30%
Dimensions	106 x 76 x 28 mm
Weight	approximately 178 g
Operating Conditions	0°C–40°C, 0%–75% RH
Protections	Protection against overvoltage, overload, reverse connection, overcurrent, overheating, reverse output current direction, undervoltage, and short circuit

*Temporary Category

FNIRSI DPS150 PD Adjustable Power Supply