DC-DC Buck Converter Adjustable Step Down Power Module 1500W 1200W 800W 5V-90V to 2.5V-72V Constant Voltage Power Supply Board

Product Selling Points1. Input voltage: 15V-90V, output voltage: 2.5V-72V, compatible with various power supplies and devices.2. Max output power up to 1500W, delivers stable power for high-power equipment.3. Widely applicable, ideal for electronics enthusiasts and professional engineers.4. Adjustable output voltage to fit diverse usage scenarios for great flexibility.5. High-efficiency step-down conversion reduces energy loss and heat generation.General SpecificationsType: Non-isolated Buck DC-DC ConverterInput Voltage: DC 15-90V. It also supports 10-15V input after shorting the 12-15V pin. **Do not input over 15V after shorting, or the module will be damaged. The ON/OFF function will be disabled once shorted.**Output Voltage: 2.5V-72V (Step-down design: Max output voltage = Input voltage × 0.8)Min Output Voltage: 2.5VMax Output Voltage: 72V (at 90V input)Cooling Mode: Air cooling with thermostatic fan (fan turns on at around 45℃)Reverse Input Polarity Protection: None (Reverse connection is strictly prohibited)Input Under-voltage Protection: NoneInput Over-voltage Protection: None (Overvoltage input is forbidden)Operating Temperature: -10℃ ~ +65℃Operating Frequency: 80KHzMax Conversion Efficiency: 97% (Subject to input/output voltage, current and voltage difference)Output Anti-backflow Protection: None. Install a freewheeling diode if connecting to inductive loads such as motors or using for battery charging.ON/OFF Interface: Available (Wiring required by user)1500W 50A VersionMax Output Power: 1500W (Use with good ventilation)Continuous Rated Power: 1200W (Well ventilated environment)Continuous Rated Current: 45AMax Output Current: 50A1200W 30A VersionMax Output Power: 1200W (Use with good ventilation, for output voltage above 50V)Continuous Rated Power: 1000W (Well ventilated environment)Continuous Rated Current: 25AMax Output Current: 30A800W 28A / 1200W 50A Constant Current VersionAdjustable Constant Current: 800W: 1.5-28A continuously adjustable; 1200W: 2-50A continuously adjustableMax Output Power: 800W / 1200W (Use with good ventilation)Continuous Rated Power: 700W / 1000W (Well ventilated environment)Continuous Rated Current: 25A / 40AMax Output Current: 28A / 50AShort Circuit Protection: Yes (Constant current protection)Voltage & Current Adjustment GuideTools needed: Multimeter and flathead screwdriverVoltage AdjustmentTurn the blue CV potentiometer on the board: Clockwise to increase output voltage, counterclockwise to decrease. The maximum output voltage is about 20% lower than input voltage.Current AdjustmentSet your multimeter/ammeters to 10A/20A/50A current gear. Adjust the output voltage to 5V first. Turn the CC constant current potentiometer counterclockwise about 10 circles to minimize current, then short the output terminals. Turn the CC potentiometer clockwise to set your required current.Note: No output voltage may appear after turning CC potentiometer counterclockwise 10 circles, which means the current is set to 0A. Just turn it clockwise to restore output.Package List1 × DC-DC Step-down Module1500W 50A Version 1200W 30A Version800W 28A / 1200W 50A Constant Current Version