500W 15A DC-DC Buck Converter Step Down Module DC 12-95V To 1.5-90V Constant Voltage Constant Current LED Driver Step-Down Power

Product parameters:

Module nature: non-isolated step-down voltage regulator module

Input voltage: 12-95V

Output voltage: 1.9-90V (suitable for applications where the input voltage is higher than the output voltage, and cannot be boosted.)

Output constant current adjustable: 0.3-18A

Rated current: 15A (if the module temperature exceeds 75 degrees after loading, please add a fan or derate it)

Minimum input and output voltage difference requirement: 2V

Output rated power: 400W, peak value 500W

Input overvoltage protection: None (please do not use it beyond the range)

Working frequency: 120KHz

Conversion efficiency: typical value 96% (related to the input and output voltage and current voltage difference)

Input reverse connection protection: yes

Output anti-backwash: None (if used for output charging, the load is self-charged or an inductive load needs to be connected to the positive terminal of the output before adding a series of 2-pole transistors)

Notice:

1. When the input voltage exceeds 36V, turn the ON/OFF switch to 0FF before wiring, and then turn it to 0N after the wiring is powered on (to prevent wiring sparks).

2. The power does not exceed 400W, 15A under natural heat dissipation, and there is a power limit. If it is used for high-voltage output and the input-output voltage difference is large, please reduce the current.

Debugging method:

First determine the output voltage according to your own load requirements, and then adjust the voltage adjustment potentiometer to reach the voltage you need after powering on the input.

Current adjustment: Set the multimeter or ammeter to the corresponding gear, adjust the module output voltage to 5V, turn the current potentiometer counterclockwise about 10 turns, (preset the current to the minimum) use a multimeter to short-circuit the output, and then turn the current potentiometer clockwise. Adjust the potentiometer to adjust the current to the current value required by the load.