Application solution of Mingxin Technology's 150W 24V to 12V isolated waterproof DC - DC power suppl

2026-02-10 17:39

With the rapid development of industrial automation, intelligent manufacturing, and robotics, more and more factories are adopting these technologies.24V DC bus power supplyHowever, on-site robotic arms, PLC control cabinets, industrial computers, sensors, and HMI human-machine interfaces often require...Stable 12V DC power supplyIn this scenario,High reliability, low noise, anti-interference, and resistant to harsh environmentsA DC-DC step-down power supply is essential.

Mingxin Technology launchedMDB150-24S12 It is a product designed specifically for industrial automation systems.150W 24V to 12V Isolated IP65 Waterproof DC-DC Power ModuleThis product usesFully sealed aluminum alloy heat dissipation casing,haveWide input voltage range, high efficiency, low ripple, strong anti-interference, fast dynamic response and high reliability protectionWith these advantages, it is very suitable for powering industrial robots, PLC control cabinets, industrial computers, smart sensors and HMI devices.


Why does industrial automation require a 24V to 12V isolated power supply?

In modern industrial automation systems, a typical power supply architecture usually adopts...24V DC busHowever, the following devices still require a 12V power supply:

  • Industrial robotic arm control module

  • PLC expansion modules and fieldbus devices

  • Industrial PCs (IPCs) and Edge Computing Terminals

  • Smart sensors (vision, pressure, temperature, displacement)

  • HMI Touch Screen and Industrial Display System

If a regular non-isolated step-down power supply is used, the starting of motors, electromagnetic interference, frequency converter noise, and surge voltage in the field can easily affect the stability of the system, which may lead to equipment malfunction, communication abnormalities, or even hardware damage.

Therefore, the following approach is recommended:

24V to 12V Isolated DC-DC Power ModuleThis achieves electrical isolation, interference immunity, and stable power supply.


II. Typical Applications of MDB150-24S12 in Industrial Automation

This power supply can be widely used in:

  • Industrial robot and robotic arm drive systemPower supply for the control board, servo interface, solenoid valves, and vision module.

  • PLC control cabinetProvides a stable 12V supply for I/O modules, communication modules, and relays.

  • Industrial Computer (IPC)Power supply for the motherboard, peripheral interfaces, and data acquisition card.

  • Smart SensorsSuch as industrial vision cameras, laser rangefinders, and pressure sensors.

  • HMI (Human Machine Interface)Ensure stable touchscreen operation and avoid screen flickering or restarts.

ThatFast dynamic responseIt has the capability to maintain a stable 12V voltage during load transients, ensuring reliable system operation.


III. Core Electrical Parameters of the Product

modelMDB150-24S12
Rated power150W
Input voltage24VDC
Input range18–36VDC
Output voltage12VDC
Output current7.14A
Type conversionIsolated DC-DC
Protection levelIP65 waterproof
shellFully sealed aluminum alloy heat dissipation casing
Cooling methodNatural cooling (radiator can be added)

IV. Core Technology Highlights and Advantages

✅ Wide input voltage range to adapt to field voltage fluctuations

support18–36VDC wide input rangeIt can address issues such as voltage drops, load fluctuations, and power loss over long distances in industrial settings.

✅ Low ripple, low noise output

built-inWideband noise filter circuitIt effectively suppresses electromagnetic interference (EMI) and is suitable for sensitive equipment such as industrial vision and data acquisition.

✅ Input/output electrical isolation

It adopts a high isolation voltage design to prevent surge and spike interference from being conducted to the 12V load terminal, protecting critical equipment such as PLC, IPC and sensors.

✅ High efficiency and good heat dissipation

The all-aluminum alloy casing contributes to heat dissipation and supports natural cooling. Radiators are optional, making it suitable for enclosed control cabinets and high-temperature environments.

✅ Fast dynamic response

It can still maintain a stable 12V output when there are sudden load changes (such as solenoid valve switching or servo start-up) to avoid system abnormalities.


V. Comprehensive electrical protection mechanism

  • Input undervoltage protection

  • Input overvoltage protection

  • Output overcurrent protection

  • Output short circuit protection

  • Over-temperature protection

  • Input/output electrical isolation protection

Ensure long-term reliable operation even under harsh working conditions.


VI. IP65 waterproof design, suitable for harsh environments.

Common industrial environments include:

  • High dust workshop

  • Humid or oily environments

  • High-temperature sealed control box

  • Outdoor equipment and automated production lines

MDB150-24S12 adoptsEncapsulation and fully sealed structure,achieveIP65 protection ratingIt has dustproof, moisture-proof and shockproof capabilities, which significantly extends the service life of the equipment.


VII. Meets international safety standards

The product design conforms to:

  • UL1950

  • IEC950

This facilitates the entire machine's passage of international safety certifications.


VIII. Mingxin Technology's Customization Advantages

  • Voltage, current, power and dimensions can be customized.

  • Provides enhanced EMI/EMC immunity design

  • Supports shockproof, moisture-proof, and salt spray-proof reinforcement.

  • Provide OEM/ODM and non-standard power supply development

  • Sample testing and engineering selection support are available.


IX. About Guangdong Mingxin Technology Co., Ltd.

Guangdong Mingxin Technology Co., Ltd., located in Dongguan Gaosheng Industrial Park, is a high-tech enterprise specializing in the research and development and manufacturing of AC/DC modular power supplies, DC/DC modular power supplies, railway power supplies, and industrial control power supplies. Its products are widely used in industrial automation, new energy, rail transportation, communication equipment, automotive electronics, and intelligent manufacturing.


Obtain MDB150-24S12 technical data

If you are looking for industrial automation, robotics, PLC control cabinets, or industrial computer systems24V to 12V isolated waterproof DC-DC power supply modulePlease feel free to contact Mingxin Technology engineers to request [documents/resources].MDB150-24S12 Complete datasheet and selection scheme.
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