FNIRSI DPS-150 Mini Adjustable DC Power Supply

The FNIRSI DPS-150 is an adjustable DC bench power supply built for testing and powering FPV electronics without needing a flight battery on the bench. It takes power in over USB-C and steps it down to a precisely set output.

Key features

• Adjustable output from 0-30V and 0-5A, up to 150W total
• Powered via USB-C from a PD or QC fast charger, a power bank, or a DC adapter
• 2.8-inch screen displays live output voltage and current for spotting shorts early
• Built-in overvoltage, overcurrent, overheat, reverse-connection and short-circuit protection
• Firmware-upgradeable and PC-software compatible for repeatable bench setups

Specifications

• Output Voltage: 0-30 V
• Output Current: 0-5 A
• Output Power: up to 150 W
• Setting resolution: 0.01 V / 0.001 A
• Modes: constant voltage (CV) and constant current (CC), 6 stored presets
• Ripple: under 20 mV
• Input: USB-C, 5-32 V
• Operation: step-down only, so the input voltage must be higher than the output you set
• Output terminals: 4 mm banana plugs, U-shaped terminals or bare wire
• Screen: 2.8-inch (320 x 240)
• Dimensions: 106 x 76 x 28 mm
• Weight: approx. 178 g

A stable, current-limited bench supply like this is useful for powering up a freshly soldered stack to check for shorts before ever connecting a LiPo.