DORHEA 20A 300W Buck Converter Step Down Module DC 6-40V to 1.2-36V Adjustable

DORHEA 300W 20A Buck Converter Step-Down Module

This DORHEA module is an adjustable constant current and voltage regulator power supply. It efficiently converts DC voltage from a range of 6-40V down to 1.2-36V with a maximum output current of 20A and power of 300W. It features short circuit protection.

Key Features

• Brand: DORHEA
• Model: 300W 20A Buck Converter
• Input Voltage: DC 6-40V
• Output Voltage: DC 1.2-36V (Adjustable)
• Output Current: 20A (Adjustable)
• Maximum Power: 300W
• Protection: Short Circuit Protection
• Input Reverse Connection Protection: No
• Output Anti-Reverse Current: No (requires additional 2 transistors for self-charging load or inductive load)
• Wiring Method: Terminal Block

Output Current Adjustment

1. Adjust the CV potentiometer to set the desired output voltage according to your load requirements.

2. Turn the CC potentiometer counterclockwise approximately 30 turns (setting output current to minimum). Connect the LED and adjust the CC potentiometer to your desired current. For battery charging, ensure the battery is discharged before connecting to the output and then adjust CC to the desired current. Accurate adjustment requires a discharged battery.

Wiring Instructions

• +IN: Input Positive
• -IN: Input Negative
• OUT+: Output Positive
• OUT-: Output Negative
• CV: Output Voltage Adjustment
• CC: Output Current Regulation
• EN: Enable (Low level turns off output; High voltage level is active)

When input and output ground are connected, the module outputs constant voltage in CV mode and constant current in CC mode under no-load conditions.

Package Includes

• 4 x DORHEA 300W 20A Buck Converter Step-Down Modules