XL4015 constant current constant voltage high current Li ion battery charging LED drive power module

Manufacturer large current constant voltage constant current step-down power supply module LED drive Li battery charging

Please do not share the input ground and output ground of the module when using this product, which will cause the current sampling resistor on the back of the board to be bypassed, thus making the module unable to adjust the output current and easily burn the power chip on the module when connected to the load..

This module is easy to use, powerful!!!

module has3 great function, to meet the vast majority of your occasions to use!!!

Module Highlights:

1. High power, rate, low ripple;

2. 3 in 1:

(1) Used as a common step-down module with overcurrent protection capability;

(23) Used as chargers for Li batteries, batteries and nickel-cadmium nickel-hydrogen batteries (battery packs) of various voltage values, and used in solar panels, wind turbines and other occasions;

(3) as high power LED constant current drive module use;

3. It has two modes of constant voltage and constant current, and an indicator light indicates which mode the module is currently in;

4. When used as a Li battery charger, you can set the floating voltage and charging current, with indicator lights.

Indicates whether it is charging or fully charged;

5. With current limiting protection function, the module will not be burned even if the output is short-circuited.

, 1. Module Parameters

Wiring port:

Input mode: IN + input positive level, IN-input negative
output mode: OUT + output positive stage, OUT-output negative

Input voltage:4-38V

Output voltage:1.25-36V continuously adjustable

Output current: adjustable, is large

Output power: is big75W

Operating temperature:-40 ~ +85 degree

Operating frequency:180KHz

Conversion efficiency: is high96%

Short circuit protection: yes (limit current8A)

Over-temperature protection: yes (automatic shutdown of output after overtemperature)

Input inverted connection protection: no, (if necessary, please string a high current into the second tube at the input)

Installation method:4 A3mm screw

Wiring mode: terminal or welding terminal, V-IN for input, V-OUT for output

Module Dimensions: long61.7mm wide26.2mm high15mm

Weight:25 g

2 2. Scope of application

1. Used as common step-down module with overcurrent protection capability

Method of use:

(11) Adjustment constant voltage potentiometer, Make the output voltage the voltage value you want

(2) Use multimeter10A the current profile measures the output short-circuit current (directly connect the two meters to the output terminal), simultaneous adjustment constant current potentiometer make the output current predetermined over-current protection value. (For example, the current value displayed by the multimeter is4A, then when you use the module, the high current can only reach4A, current4A the red constant voltage and constant current indicator light is on, otherwise the indicator light is off)

Note: When used in this state, since the output has0.05 european current sampling resistor, there will be0~0.3V this is a normal phenomenon! This voltage drop is not pulled down by your load, but down to the sampling resistor.

2. Use as a battery charger

The module without constant current function cannot be used to charge the battery. Due to the large voltage difference between the exhausted battery and the charger, the charging current is too large and the battery is damaged. Therefore, the battery should be used at the beginning. Constant current charging, when charging to a certain level, automatically switch back to constant voltage charging.

Method of use:

(1) Determine the floating voltage and charging current of the rechargeable battery you need; (If the Li battery parameter is3.7V/2200mAh then the float voltage is4.2V, is a large charging current1C, I .e.2200mA)
(2) Under no-load conditions, the multimeter measures the output voltage and adjusts the constant voltage potentiometer to make the output voltage float; (if given3.7V charge the Li battery and adjust the output voltage4.2V can be)
(3) Use multimeter10A the current profile measures the output short-circuit current (directly connect the two meters to the output terminal), simultaneous adjustment constant current potentiometer a predetermined charging current value for the output current;
(4) The default current of the charging lamp is factory0.1 double charging current;( the current of the battery is gradually reduced during the charging process, and gradually changes from constant current charging to constant voltage charging. If the charging current is set1A, then when the charging current is less0.1A when the blue light is off and the green light is on, the battery is charged at this time)
(5) Connect the battery and charge it.

(Steps1,2,3,4 for: the input terminal is connected to the power supply, and the output terminal is not connected to the battery without load)

3. as high power LED constant current drive module use

(1) Make sure you need to drive LED the working current and is high working voltage;

(2) Under no-load conditions, the multimeter measures the output voltage and adjusts the constant voltage potentiometer to make the output voltage LED is a high working voltage;

(3) Use multimeter10A the current profile measures the output short-circuit current, and at the same time adjusts the constant current potentiometer to make the output current predetermined LED operating current;

(4) CONNUT LED, test machine.

(Steps1,2,3 for: the input is connected to the power supply, and the output is not connected with no load. LED lights.)

Note: This module is more3A,35W when using, please strengthen the heat dissipation!!!