New Product Launch: KUAIQU KQ-4KD 4 Channel Programmable DC Power Supply

A Smarter Multi Channel DC Power Supply Solution for Electronics Engineers

With the rapid development of electronic products, engineers are facing increasingly complex testing challenges. Modern devices often contain multiple circuits, modules, and voltage requirements, making traditional single-channel power supplies less efficient for R&D and testing.

To meet the needs of engineers, laboratories, and automated test environments, KUAIQU introduces the new KQ-4KD 4 Channel Programmable DC Power Supply — a professional multi channel DC power supply designed to simplify complex testing tasks and improve engineering efficiency.

Featuring four independent output channels, real-time V/I/P monitoring, programmable communication interfaces, and comprehensive protection functions, the KQ-4KD provides a complete power solution for electronics development, PCB testing, and production validation.

Why Engineers Need a Multi Channel DC Power Supply

In electronics R&D, engineers often need to power multiple circuits simultaneously.

A typical development project may include:

· Main control board

· Communication modules

· Sensor circuits

· Embedded systems

· Peripheral devices

Each module may require different voltage and current settings.

Using multiple single-channel power supplies can create several problems:

· More equipment occupies valuable workspace

· Complicated wiring increases troubleshooting difficulty

· Switching between different power sources wastes time

· Managing multiple test conditions becomes inefficient

A professional 4 channel DC power supply solves these problems by combining multiple independent outputs into one integrated testing platform.

Introducing KUAIQU KQ-4KD: Professional 4 Channel DC Power Supply

The KUAIQU KQ-4KD Multi Channel Programmable DC Power Supply is designed for engineers who need flexible, accurate, and efficient power control.

With four fully independent output channels, engineers can simultaneously power and test multiple circuits while maintaining individual control over each channel.

The KQ-4KD is ideal for:

· Electronics R&D

· Hardware debugging

· PCB testing

· Product validation

· Automated test systems

· Laboratory experiments

Key Features of KUAIQU KQ-4KD

1. Four Independent Output Channels

The biggest advantage of KQ-4KD is its 4-channel independent output design.

Each channel can be individually adjusted for:

· Voltage

· Current

· Output control

Engineers can test multiple circuits at the same time without using several separate power supplies.

This makes KQ-4KD an efficient four channel programmable power supply for modern electronic development.

2. Real-Time Voltage, Current & Power Display

The KQ-4KD provides simultaneous monitoring of:

· Output voltage

· Output current

· Output power

Real-time data visibility helps engineers quickly analyze:

· Circuit power consumption

· Abnormal current changes

· Hardware faults

· Prototype performance 

3. Programmable Remote Control

For automated testing applications, KQ-4KD supports:

· USB communication

· RS232 communication

· RS485 communication

Engineers can integrate the power supply into:

· Automated test equipment

· Production inspection systems

· Computer-controlled testing platforms 

4. High Precision Output with Low Ripple

Sensitive electronic circuits require stable and clean DC power.

The KQ-4KD provides:

· High accuracy adjustment

· High resolution control

· Stable output performance

· Low ripple and low noise

Ensuring reliable power during testing and development.

5. Independent Protection System

Each output channel includes:

· OVP (Over Voltage Protection)

· OCP (Over Current Protection)

The protection system helps prevent damage caused by abnormal voltage, excessive current, or unexpected circuit conditions.

6. Memory Function for Efficient Testing

Engineers often repeat the same testing procedures.

The KQ-4KD allows users to save commonly used parameters and quickly recall settings, improving efficiency in:

· Laboratory testing

· Product verification

· Production inspection 

OPERATION INSTRUCTIONS（Simplified）

Step 1. Power On & Channel Selection

· Press [POWER] to turn on the power supply. The screen displays the previous voltage and current settings.

· Press [POWER] again to turn off the power supply.

· Press CH1/CH2/CH3/CH4 to select the output channel. The selected channel indicator will light up.

Step 2. Voltage Setting

· Select the desired channel.

· Rotate the [VOLTAGE] knob to adjust the voltage.

· Press the knob to switch adjustment digits.

· Turn clockwise to increase and counterclockwise to decrease the value.

Step 3. Current Setting

· Select the desired channel.

· Rotate the [CURRENT] knob to adjust the current.

· Press the knob to switch adjustment digits.

· Turn clockwise to increase and counterclockwise to decrease the value.

Step 4. Over Current Protection (OCP)

· Press [OCP] to enable or disable OCP.

· Hold [OCP] for 3 seconds to enter the setting mode.

· Adjust the OCP current value using the [CURRENT] knob.

· When over-current occurs, the output stops and an alarm is triggered.

Step 5. Over Voltage Protection (OVP)

· Press [OVP] to enable or disable OVP.

· Hold [OVP] for 3 seconds to enter the setting mode.

· Adjust the OVP voltage value using the adjustment knob.

· When over-voltage occurs, the output stops and an alarm is triggered.

Step 6. Save & Recall Settings

· Each channel supports M1, M2, M3 memory groups.

· Save: Select a channel → Press M1/M2/M3 → Set voltage and current → Press the same key again to save.

· Recall: Press M1/M2/M3 to load saved settings.

· Output is automatically disabled during recall for safety.

Step 7. Output Control

· Press [OUTPUT] to enable or disable the selected channel output.

· Press [ALL-ON/OFF] to control all four channels simultaneously.

Step 8. Panel Lock

· Press [LOCK] to lock all buttons and knobs.

· Press again to unlock.

Step 9. Buzzer Setting

· Press the Buzzer button to turn the sound on or off.

Step 10. USB Charging

· Supports fast charging through USB-A and USB-C ports.

Step 11. PC Remote Control

• Connect the power supply to a PC via RS232 / USB / RS485.
• Use the host computer software for remote operation and programming.
• The front panel controls are locked during PC control.

KUAIQU KQ-4KD vs Other Professional Multi Channel DC Power Supplies

When selecting a professional multi channel DC power supply, engineers usually compare channel flexibility, control capability, communication functions, and overall testing efficiency.

Products such as Tektronix 2230 and 2220 Series are widely used in precision laboratory applications.

While these products focus on advanced measurement performance, many engineering teams also need a practical solution for daily development work — especially when testing multiple circuits and modules simultaneously.

The KUAIQU KQ-4KD focuses on providing engineers with an efficient 4 channel power supply platform for real-world development and testing.

Comparison: KUAIQU KQ-4KD vs Tektronix 2230/2220 Series

1.Main Specification Comparison 

2.Price Comparison

Why KUAIQU KQ-4KD Is a Better Fit for Many Engineering Workflows

More Channels for Complex Testing

Modern electronic systems often require multiple voltage supplies.

For example:

With four independent channels, KQ-4KD allows engineers to manage multiple power requirements from one device.

Designed Around Daily Engineering Needs

The KQ-4KD is built for engineers who need:

✔ Multiple independent outputs
✔ Fast debugging
✔ Easy parameter adjustment
✔ Reliable protection
✔ Flexible communication control

It provides a practical balance between performance, flexibility, and efficiency.

A New Choice for Modern Electronics Engineers

The launch of the KUAIQU KQ-4KD 4 Channel Programmable DC Power Supply brings a smarter approach to electronics testing.

By combining four independent outputs, programmable control, real-time monitoring, and professional protection features, KQ-4KD helps engineers reduce testing complexity and improve development efficiency.

Whether you are developing prototypes, testing PCBs, or building automated test systems, the KUAIQU KQ-4KD provides a reliable multi channel DC power supply solution designed for modern engineering challenges.

KUAIQU KQ-4KD

Four Channels. One Professional Testing Solution.

Product Link:
https://www.kuaiquinstrument.com/products/kuaiqu-kq-4kd-multi-channel-programmable-dc-power-supply