โมดูลแปลงไฟ Step down จาก 5-36V เป็น 1.25-32V กระแสสูงสุด 5A XL4015 constant voltage constant current buck power modu...

Module parameters

Input voltage : 5-36V

Output voltage: 1.25-32V continuously adjustable

Output current: adjustable, maximum 5A ( recommended to be used within 4.5A )

Output power: maximum 75W (recommended to use within 50W , please reduce the power when using large pressure difference)

Working temperature: -40~+85 degrees

Working frequency: 180KHz

Conversion efficiency: up to 96%

Short circuit protection: yes

Over-temperature protection: Yes (output is automatically turned off after over-temperature)

Input reverse connection protection: none, (if necessary, please connect a high current diode to the input)

Installation method: 4 pieces of 3mm screw

Wiring method: terminal or welding terminal, V-IN is input, V-OUT is output

Module dimensions: length 68.2mm width 38.8mm high 15mm

Weight: 35g





Instructions:

( 1 ) Determine the float charge voltage and charge current of the battery ; (If the lithium battery parameter is 3.7V/2200mAh, then the float charge voltage is 4.2V , the maximum charge current is 1C , which is 2200mA )

( 2 ) Under no-load conditions, adjust the digital meter of the module to the [Display Output Voltage] interface, and adjust the "constant voltage potentiometer" to make the output voltage reach the float charge voltage ;

( 3 ) Adjust the digital meter to the [display output current] interface, directly short the output end of the module (just find a thick wire to short the output end) , then adjust the "constant current potentiometer" to make the digital meter on the The current value reaches the preset charging current value ;
( 4 ) The charging lamp current defaults to 0.1 times the charging current in the factory ; (The current of the battery gradually decreases during the charging process, and gradually changes from constant current charging to constant voltage charging. If the charging current is set to 1A , when the charging current is less than 0.1A , the blue light is off and the green light is on, and the battery is fully charged at this time )
( 5 ) Connect the battery and charge it.

(Steps 1 , 2 , 3 , and 4 are: the input terminal is connected to the power supply, and the output terminal is no-load without connecting the battery)

3. Used as LED constant current drive module
( 1 ) Determine the working current and maximum working voltage of the LED you need to drive ;

( 2 ) Under no-load conditions, adjust the digital meter to the [display output voltage] interface, adjust the "constant voltage potentiometer" to make the output voltage reach the LED working voltage ;
( 3 ) adjust the digital meter to the [display output current] interface, Directly short- circuit the output end of the module (just find a thick wire to short- circuit the output end), then adjust the "constant current potentiometer" so that the current value on the digital meter reaches the preset LED working current ;

( 4 ) Connect the LED and test the machine.
(Steps 1 , 2 , and 3 are: input connected to power supply, output no-load and not connected to LED lamp)