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The KUAIQU KQ7901 Precision Electronics R&D Power Supply is designed for precision circuit development, electronic module validation, and automated functional testing. Featuring a 4.3-inch TFT color display, five-digit voltage and current readouts, real-time power monitoring, and encoder and numeric keypad control, this programmable DC power supply delivers intuitive operation and precise parameter adjustment.
With 100 groups of data storage, programmable List testing, USB file import, USB/RS232/RS485 computer control, and remote Sense compensation, the KQ7901 is an advanced regulated DC power supply for engineers who require repeatable test conditions and efficient laboratory workflows. Additional features include battery reverse-polarity protection, OCP and OVP protection, adjustable screen brightness, bilingual interface support, and dual USB fast-charging outputs.
Designed as a precision electronics R&D power supply, the KQ7901 features five-digit voltage and current displays alongside real-time power monitoring. Engineers can adjust output parameters using the rotary encoder or numeric keypad, making this programmable DC power supply suitable for detailed circuit characterization, electronic component evaluation, and repeatable engineering tests.
The 4.3-inch TFT color screen provides a clear, intuitive interface for laboratory power supply operation. Adjustable screen brightness helps accommodate different working environments, while Chinese and English interface switching makes the instrument convenient for international engineering teams, electronics laboratories, and production test stations.
The built-in curve interface can display two of the following parameters simultaneously: voltage, current, and power. This visual monitoring capability helps engineers observe output behavior during electronic module testing, power circuit development, and programmable DC power supply experiments.
Store and recall up to 100 groups of test parameters, including voltage, current, overcurrent protection (OCP), and overvoltage protection (OVP) settings. This programmable bench power supply helps engineers reduce repetitive setup work, maintain consistent test conditions, and improve efficiency across recurring electronics R&D and quality inspection tasks.
The KQ7901 supports programmable List testing through both local instrument programming and USB drive file import. Engineers can prepare and execute predefined output sequences for repeatable electronic testing workflows, making this programmable DC power supply suitable for automated test benches, electronic module verification, and engineering development.
With USB, RS232, and RS485 programmable interfaces, the KQ7901 can connect to a computer for remote control and integration into electronic test systems. Remote Sense compensation helps reduce the effect of lead voltage drop at the load, improving voltage regulation at the point of connection when correctly wired.
These capabilities make the KQ7901 a practical computer-controlled DC power supply for laboratory automation, production testing, and repeatable engineering experiments.
Built-in battery reverse-polarity protection helps protect the instrument when a battery is connected with incorrect polarity. The power supply automatically triggers a reverse-polarity protection prompt, helping engineers identify connection errors during battery electronics testing and circuit development.
In addition to its adjustable DC output, the KQ7901 provides USB-A and USB-C fast-charging ports with real-time output monitoring. These auxiliary outputs offer convenient power options for compatible electronic devices, development accessories, and USB-powered modules alongside the main programmable DC power supply.
The forced CV mode is designed to keep the instrument operating in constant-voltage mode according to its specified operating conditions. This is useful for applications that prioritize voltage regulation during electronic circuit development and functional verification. Actual output behavior remains subject to the instrument's rated limits and protection mechanisms.
Overcurrent protection (OCP) and overvoltage protection (OVP) provide additional safeguards during electronics R&D and automated testing. The panel lock function helps prevent unintended setting changes during experiments, repetitive testing, and operation on shared laboratory workbenches.
Electronics R&D and Prototype Validation
Use the KQ7901 precision DC power supply to power prototype circuit boards, embedded electronics, control modules, and electronic components during development and functional verification.
Automated Electronic Functional Testing
Integrate the programmable DC power supply into computer-controlled test benches for repeatable output sequences, predefined test conditions, and electronic module validation.
Power Electronics and DC-DC Converter Development
Support the development and functional evaluation of voltage regulation circuits, DC-DC converter modules, power management circuits, and low-voltage electronic systems. Additional measurement equipment may be required for comprehensive efficiency and dynamic-load testing.
Battery Management System (BMS) and Battery Electronics Testing
Power battery protection boards, BMS circuits, charging-control electronics, and related low-voltage modules during development. Confirm the required voltage, current, and test conditions before connecting battery cells.
Electronic Manufacturing and Quality Inspection
Use stored parameter groups and programmable List testing to help standardize recurring inspection procedures for electronic assemblies and modules.
University Engineering Laboratories
Support electronics experiments, circuit analysis, and engineering research with five-digit readings, graphical output monitoring, and programmable test capabilities
| Item | Parameter | KQ7901-80-20 |
|---|---|---|
| Rated Value
|
Voltage | 0-80V |
| Current | 0-20A | |
| Power | 400W | |
| Load Regulation | Voltage | ≤0.01%+20 mV |
| Current | ≤0.01%+5 mA | |
| Line Regulation | Voltage | ≤0.01%+2.5 mV |
| Current | ≤0.01%+2.5 mA | |
| Setting Resolution | Voltage | 1 mV |
| Current | 1 mA | |
| Readback Resolution | Voltage | 1 mV |
| Current | 1 mA | |
| Setting Accuracy | Voltage | ≤0.01%+20mV |
| Current | ≤0.05%+10mA | |
| Readback Accuracy | Voltage | ≤0.01%+20mV |
| Current | ≤0.01%+15mA | |
| Ripple
|
Voltage | ≤ 50 mVp-p ≤ 6 mVrms |
| Current | ≤ 40 mArms | |
| Rise Time (No Load) | Time | ≤300mS |
| Rise Time (Full Load) | Time | ≤1000mS |
| Fall Time (No Load) | Time | ≤500mS |
| Fall Time (Full Load) | Time | ≤100mS |
30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from kuaiquinstrument.com), lifetime technique support by KUAIQU.
Please feel free to reach us with any concerns:
Email: kuaiquinstrument@163.com
We strive to reply to you within 24 hours.
Shenzhen Kuaiqu Electronic Co., Ltd. was founded in 2014 and is located in Shenzhen City, Guangdong Province. It is a scientific and technological enterprise integrating,production and sales. Specializing in the production of DC stabilized power supply, variable frequency power supply, switching power supply, program-controlled power supply and other 100 kinds of measuring teaching instruments and industrial special equipment.
We are committed to delivering premium products and exceptional customer service, striving to be your most reliable and intelligent assistant.
At KUAIQU, we are committed to providing our customers with the best value for their purchases. To ensure you always get the best price, we offer a 30-day price guarantee on all products purchased directly from kuaiquinstrument.com. This policy aims to give you confidence and peace of mind when shopping with us.
Our 30-day price guarantee means that if you purchase a product from kuaiquinstrument.com and the price of that product drops within 30 days of your purchase date, you are eligible for a refund of the price difference of the products. (Prices are based on USD. No refunds will be given for price changes in other currencies due to exchange rate fluctuations.)
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At KUAIQU, we strive to provide our customers with high-quality products and exceptional customer service. Our 30-day price guarantee is just one of the ways we ensure you get the best value for your investment. Shop confidently with KUAIQU, knowing that you are always getting the best deal available.
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