Hantek HDP4424 Series 4-Channel Programmable DC Power Supply

The Hantek HDP4424 is a 4-channel programmable linear DC power supply with 245 W total output across four electrically isolated channels: two at 32 V/3.2 A, one at 8 V/2 A and one at 16 V/1.5 A. It has 1 mV and 1 mA resolution, keeps ripple and noise below 350 µVrms / 2 mVpp, and takes SCPI commands over USB and LAN, so one linear bench supply can run a mixed-rail board on the bench or a fixture in an automated test rack. The HDP4424 suits hardware engineers who would otherwise stack two bench supplies, and test engineers who need four isolated, scriptable rails at one LAN address.

Four Isolated Rails for Mixed-Voltage Boards

Each channel is electrically isolated and continuously adjustable. CH3 (8 V/2 A) suits 3.3 V and 5 V logic, CH4 (16 V/1.5 A) covers 12 V rails, and CH1 and CH2 (32 V/3.2 A each) handle motor drivers and analogue front ends. Because the outputs are isolated, CH1 and CH2 can be wired as a ±15 V rail for op-amp circuits.

CH1 and CH2 also run in series, parallel and tracking modes. Series gives 64 V at 3.2 A; parallel gives 32 V at 6.4 A.

Low-Noise Linear Regulation with 1 mV/1 mA Resolution

As a linear regulated programmable DC power supply, the HDP4424 holds ripple and noise below 350 µVrms / 2 mVpp (20 Hz to 20 MHz). Load and line regulation are both under 0.01% + 2 mV for voltage and 0.01% + 250 µA for current. Transient response is under 50 µs for the output to return within 15 mV after a full-load to half-load step.

Over-voltage and over-current limits are user-set for load protection, alongside over-temperature and short-circuit protection. A temperature-controlled fan adjusts its speed automatically to keep bench noise down.

SCPI Control Over USB and LAN for Automated Test

USB DEVICE and LAN carry SCPI remote commands, and Hantek publishes an SCPI programming reference and free secondary development instructions. A 4-line digital I/O port provides trigger in, trigger out and inhibit signals for sequencing with other instruments. The HDP4424B variant adds an RS232/RS485 interface.

Without a PC, the list function steps through voltage, current and time sequences, and timing and delay output functions control when each output turns on. The recorder logs voltage, current and power and plots them on the 4.3 inch colour TFT display, and the USB HOST port saves data and screenshots to a FAT32 USB drive.

Specifications

Limitations

• Series, parallel and tracking modes combine CH1 and CH2 only.
• CH3 is limited to 2 A. If a logic rail needs up to 5 A at 8 V, the 3-channel HDP4324 has an 8 V/5 A third channel.
• RS232/RS485 is on the HDP4424B only. The standard HDP4424 has USB, LAN and digital I/O.
• Resolution is 1 mV/1 mA. Hantek lists 0.1 mV and 1 µA resolution, rear output and 2-wire/4-wire display only for its separate HDP4000S series.

HDP4424 Compared with the HDP4324

Typical Applications

Bring-up of an STM32 or ESP32 board with a 5 V input on CH3, a 12 V motor or LED rail on CH4 and a ±15 V analogue rail from CH1 and CH2. Scripted supply margining in a production test fixture, stepping each rail over SCPI and logging the readback current. Battery-powered product testing, replaying a voltage profile with the list function while the recorder captures current.

Order the Hantek HDP4424 from £640 ex VAT. Choose the HDP4424B variant if your test system needs RS232 or RS485, or ask us for a formal quotation. You can also browse our other bench power supplies.

Frequently Asked Questions

What Is the Difference Between the HDP4424 and the HDP4424B?

The HDP4424B adds an RS232/RS485 interface. Output channels, accuracy and the USB, LAN and digital I/O interfaces are the same on both.

Answered by John Legg, Director, Debug Store

Is the HDP4424 a Linear or Switching Supply?

Linear. Hantek describes it as a four-channel programmable linear DC regulated power supply, with ripple and noise below 350 µVrms / 2 mVpp.

Answered by John Legg, Director, Debug Store

Can It Run a Voltage Sequence Without a PC?

Yes. The list function steps through voltage, current and time values you enter on the unit, and ten storage groups keep sequence and panel settings for reuse.

Answered by John Legg, Director, Debug Store

What Mains Supply Does It Need?

100, 115 or 230 Vac ±10% (250 Vac maximum) at 50 Hz to 60 Hz. Maximum input power is 600 VA.

Answered by John Legg, Director, Debug Store

Last reviewed: 30 October 2026