The KUAIQU KQ305R-4KD is a 4-channel programmable DC power supply built for electronics engineers, R&D teams, laboratories, and production testing environments. BDTronics provides this laboratory-grade bench power supply for electronics, robotics, prototyping, and related applications in Bangladesh, where engineers need accurate multi-channel DC power for simultaneous testing of several circuits and modules.

The KQ305R-4KD offers four independent adjustable DC outputs in a single instrument, unlike traditional single-output bench power supplies. Each channel delivers up to 30V and 5A at 150W rated output, giving a total of 600W of adjustable power across four isolated channels. This makes it suitable for powering MCUs, sensors, communication modules, development boards, and multiple electronic boards at the same time.

Features:

• Four independent adjustable DC output channels with individual ON/OFF control
• Real-time simultaneous V/I/P display for all four channels on the LED screen
• High precision and low ripple, low noise output for sensitive circuits
• Programmable remote control via USB, RS232, and RS485 interfaces for PC-based control and automated test systems
• Independent Over Voltage Protection (OVP) and Over Current Protection (OCP) on every channel
• 3 groups of memory preset storage per channel for quick recall of frequently used voltage and current settings
• Intelligent temperature-controlled fan that adjusts speed automatically for quiet operation
• USB-A and USB-C charging ports for powering USB devices, development boards, and accessories
• High set value and readback resolution of 10mV (voltage) and 1mA (current)
• Rugged bench-top enclosure with rear input cable and front output terminals

Specifications:

Applications:

• Electronics R&D: Prototype development, PCB testing, circuit debugging, and hardware verification
• Laboratory testing: Electronic experiments, engineering education, and precision measurements
• Production testing and QC: Product inspection, functional testing, and aging tests
• Automated test systems: PC-controlled testing, system integration, and production automation via USB/RS232/RS485
• Embedded system development: Powering and testing MCUs, sensors, communication modules, and electronic boards
• Multi-device testing: Simultaneous testing of multiple circuits, modules, and electronic components
• Communication and industrial electronics: Stable power for control systems, electronic equipment, and measurement devices

How to Use:

1. Connect the supplied AC input cable to a suitable wall outlet matching the input voltage option of the unit (AC220V(±10%) or AC110V(±10%)).
2. Power on the instrument and allow the display to initialize.
3. Set the desired voltage and current limit for each channel using the front panel controls.
4. Connect the device under test to the output terminals of the corresponding channel using the supplied output cable.
5. Use the individual channel ON/OFF switch to enable the output only for the channel you are testing.
6. For automated testing, connect the unit to a PC using USB, RS232, or RS485 and control it through the appropriate software.

Installation and Wiring:

Place the power supply on a stable, well-ventilated bench surface and keep the rear vents unobstructed so the intelligent cooling fan can operate efficiently. Connect the AC input cable firmly to the mains. Attach the output cable to the channel terminals before switching on the output, verifying correct polarity. When using multiple channels, keep the wiring separated and use cables rated for the maximum channel current of 5A to avoid heating or voltage drop.

Compatibility:

• Compatible with a wide range of electronic components, modules, MCUs, sensors, development boards, communication modules, and test fixtures within the 30V / 5A / 150W per-channel rating
• Works with PC-based automation software through USB, RS232, and RS485 interfaces
• USB-A and USB-C ports allow powering of standard USB devices and development boards

Safety Information:

• Verify the input voltage option (AC220V ±10% or AC110V ±10%) before connecting to mains
• Do not exceed the rated 30V / 5A / 150W per channel to prevent damage to the unit and connected devices
• Make sure output cables are securely connected and observe correct polarity
• Keep the unit away from moisture, flammable materials, and direct sunlight
• Reliable OVP and OCP functions protect connected loads from abnormal voltage and current; still, follow the safety instructions in the user manual
• Do not open the enclosure; there are no user-serviceable parts inside

Package Includes:

• KQ305R-4KD DC Power Supply ×1
• Output Cable ×1
• Input Cable ×1
• User Manual ×1
• Warranty Card ×1

The KUAIQU KQ305R-4KD brings professional multi-channel DC power within reach for workshops and test benches that need reliable simultaneous power and monitoring. BDTronics supplies this programmable bench power supply for engineers, hobbyists, and educational institutions who need consistent, low-ripple DC output for prototyping, repair, and quality-control work.