1800W 40A DC-DC Adjustable Boost Converter – Constant Voltage & Current Power Supply Module

The 1800W 40A DC-DC Boost Converter is a high-power, non-isolated step-up power supply module designed for applications requiring adjustable DC voltage and current regulation.

With a stated 10V–60V DC input range and adjustable 12V–97V output (local listed version), this converter provides a flexible solution for high-power electronics, battery systems, solar power projects, LED lighting and custom DC power supplies.

The module supports Constant Voltage (CV) and Constant Current (CC) adjustment, allowing users to configure the output voltage and current limit according to their connected load.

Its high-power circuit design features a large copper-wound toroidal inductor, multiple electrolytic capacitors, power semiconductor components, an aluminium heatsink and temperature-controlled cooling fan.

The adjustable undervoltage protection function also helps protect compatible battery-powered systems from excessive discharge.

Key Features

• 1800W Advertised Power: High-power DC voltage conversion for compatible applications, subject to input voltage, current and thermal limits.

• 40A Maximum Input Current: Designed for high-current DC input applications.

• Wide Input Range: Accepts 10V–60V DC on the listed version.

• Adjustable Output: Listed output range of 12V–97V DC.

• Constant Voltage (CV): Adjust output voltage to suit compatible electronic loads.

• Constant Current (CC): Configure an output current limit for suitable applications.

• Temperature-Controlled Fan: Cooling fan automatically operates according to temperature on the listed version.

• Large Copper Inductor: Supports the converter's high-power switching circuit.

• Aluminium Heatsink: Helps dissipate heat generated during power conversion.

• Adjustable Undervoltage Protection: Allows configuration of the input low-voltage threshold.

• Reverse-Polarity Protection: Listed input protection helps guard against incorrect input connections.

• Screw Terminal Connections: Convenient wiring for DC input and output.

• Mounting Holes: Four mounting points for installation.

Technical Specifications

Specifications are based on the corresponding local listing and reference documentation. Confirm the exact supplied board revision before relying on maximum current, efficiency or physical dimensions.

Constant Voltage (CV) and Constant Current (CC) Control

Constant Voltage – CV Mode

The CV adjustment allows users to configure the desired output voltage within the supported operating range.

Applications include:

• Adjustable DC power supplies

• High-voltage DC electronics

• LED lighting systems requiring voltage regulation

• Custom electronics development

Constant Current – CC Mode

The CC adjustment allows users to set a current limit for compatible loads.

Applications include:

• High-power LED systems

• Current-limited electronics

• Compatible battery charging projects

• Power electronics experimentation

Always configure the current limit using a suitable load and measuring equipment. Never short-circuit the output to adjust the current.

Intelligent Cooling and Heat Dissipation

High-power DC conversion generates heat, particularly when operating with high current or a large difference between input and output voltages.

This module features an aluminium heatsink and temperature-controlled fan on the listed version.

For reliable operation:

• Maintain sufficient airflow around the heatsink.

• Keep the fan ventilation openings unobstructed.

• Use properly rated input and output cables.

• Ensure all screw terminals are securely tightened.

• Avoid prolonged operation beyond the verified thermal rating.

• Monitor module temperature during high-power operation.

Adjustable Undervoltage Protection

The undervoltage protection adjustment allows users to configure a low-voltage threshold for compatible battery-powered systems.

When the input voltage falls below the configured threshold, the module can stop normal boost operation to help prevent excessive battery discharge.

Set the protection threshold according to the battery chemistry and manufacturer's recommended discharge limits.

Typical Applications

Solar Power Systems

Suitable for compatible solar DC voltage-boosting applications and custom solar power electronics. This module is not a standalone MPPT solar charge controller.

Battery Charging Projects

Can be used as an adjustable DC boost stage for compatible battery charging systems. An appropriate battery charging profile, BMS and independent safety protection are still required.

High-Power LED Lighting

Suitable for compatible LED systems requiring adjustable voltage and current regulation. Always match the LED's electrical requirements.

Electric Vehicle Electronics

Can be incorporated into compatible low-voltage DC power conversion projects after checking the input, output and motor load requirements.

DIY Adjustable Power Supply

Useful for electronics laboratories, repair workshops, engineering projects and custom DC power supply development.

Industrial Electronics

Suitable for compatible DC voltage conversion applications, automation projects and high-power electronics experimentation.

Input and Output Connections

The module uses screw terminals for DC input and output.

• IN+ : Positive DC input

• IN− : Negative DC input

• OUT+ : Positive DC output

• OUT− : Negative DC output

Important: Confirm terminal positions and polarity from the actual PCB labels before connecting the power supply.

Installation Instructions

1. Disconnect all power sources before installation.

2. Verify that the input voltage is within the supported range.

3. Identify the input and output terminals.

4. Connect the DC source to IN+ and IN−.

5. Use suitable input-side fusing and correctly rated cables.

6. Connect a multimeter across OUT+ and OUT−.

7. Power the module without connecting sensitive equipment.

8. Adjust the CV potentiometer to the required output voltage.

9. Set the CC limit using an appropriate load and current measurement equipment.

10. Check the cooling fan and heatsink ventilation.

11. Connect the intended load only after confirming the output settings.

Important Safety Precautions

• This is a non-isolated boost converter.

• It can increase voltage but cannot perform step-down conversion.

• The output voltage must be higher than the input voltage for normal boost operation.

• Never reverse the output polarity.

• Never short-circuit the output.

• Do not exceed the specified input current or output current.

• Use appropriate fuses, wiring and connectors.

• High-voltage output can cause electric shock.

• Disconnect the input supply before modifying wiring.

• Do not leave battery charging unattended.

• Use a separate, compatible BMS and battery charging protection system where required.

Product Benefits

The 1800W 40A Boost Converter is a practical choice for engineers, technicians, electronics developers and advanced DIY users who require adjustable DC voltage conversion with current regulation.

Its CV/CC controls, heatsink, cooling fan and adjustable undervoltage protection make it suitable for a variety of custom high-power DC applications.

Package Includes

• 1 × 1800W 40A DC-DC Adjustable Boost Converter Module