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Adjustable Buck Power Supply Module 12A LED Drive
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Parameters
1 Modular Nature: Non isolated buck, constant pressure module(CC CV), charging module
2 Application: high power LED constant current drive, rechargeable lithium batteries (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery, NiCd and NiMH batteries (battery) charge, solar panels, wind generators
3 Input voltage: 7-32V (without the constant current 5-32V)
4 Output voltage: (1) continuously adjustable (0.8-28V)
              (2) fixed output (0.8-28V optional),
              (3) if need higher voltage, please contact me directly
5 Output current: the maximum 12A (power tube temperature exceeds 65 degrees, please add cooling fan, 24V 12V 6A within the open environment without fan)
6 Constant current range: 0.2-12A (adjustable)
7 Turn the lamp current: constant current value * (0.1), turn the lamp current and constant current value linkage, such as constant current value is 3A, turn the lamp current is set to 0.1 times the constant flow (0.1*3A=0.3A), when the value of the constant current regulation into 2A, then turn the lamp current is 0.1 times of constant current (0.1*2A=0.2A)
Version for fixed 0.1 times (the actual turning lamp current is probably worth is not very accurate) for charging is full of instructions.
8 The dropout voltage: 1V
9 Output power: the maximum power is about 300W, temperature of the power tube more than 65 degrees and fan.
10 Efficiency: a maximum of about 95% (the higher the voltage, the higher the efficiency)
11 Operating frequency: 300KHZ
12 Output ripple: 20M bandwidth (only for reference)
   Input 24V output 12V 5A ripple around 50mV (without noise)
13 Working temperature: industrial grade (-40 to +85 degree) (actual use please note that the temperature of the power tube, the temperature is too high and please strengthen heat)
14 The typical no-load current: 20mA (24V 12V)
15 Load regulation: ± 1% (constant)
16 Voltage regulation rate: 1%
17 The precision of constant current and temperature: the actual test, module temperature from 25 degrees to 60 degrees, the constant current value is less than 5% (constant current value 5A)
18 The dynamic response speed: 5% 200uS
19 Potentiometer adjustment direction: clockwise, counterclockwise (increased) (reduced) close to the input potentiometer for voltage regulation (CV), close to the output of the potentiometer is current regulator (CC)
20 Indicator: the double color indicating lamp, light red charging, after charging indicator green (no load of green) without indicator light constant current is red.
21 Output short circuit protection: yes, constant current (the current setting value of the constant current)
22 Input reverse connection protection: no
23 Output to prevent reflux: No
24 Connection: connecting terminal

 

Adjustable power (12A power is large enough), high power LED driver, LED display drive, lead battery, lithium battery, vehicle power, on-board laptop power supply (Buck), power, low voltage system, (such as children's toy car with 12V battery voltage to the 6V), 24V  to 12V 12A; 12V to 5V 12A, 24V to 5V 12A, 24V to 19V 20V and so on, very wide range of applications

 

1 Fixed to the lamp current is 0.1 times constant current value (when charging, used for identifying whether the battery is full)
2 Standard specific IC, and high precision sampling resistance, the more stable constant current, (20 degrees to 60 degrees when constant current 5A temperature drift is less than 5%). Particularly suitable for LED driver
3 large output current, maximum output current can reach 12A, meet most needs.
4 Four high frequency capacitance, reduce the output ripple, improve the working stability
5 Double heat sink design, MOS Schottky diode independent heat sink, good heat dissipation, and do not influence each other
6 Using large size sendust core, improve work efficiency, and copper double and Rao, reduces fever, improve efficiency.
7 Used for 3296 multiturn potentiometer, voltage and current regulation of high precision, good stability
8 Special current sampling resistor current sampling and high precision and good stability, small temperature drift. It necessary LED
9 Double color indicating lamp, working state stick out a mile. Charging the necessary.
10 Size: 65*47*23.5 mm
11 voltage and current can be regulated, as adjustable power supply effect is good, 12A current, full power

 

Battery charging method
1 Be sure you need to charge the battery float charging voltage and charging current, input voltage module
2 Adjustable constant potentiometer, the output voltage is regulated to 5V
3 Multimeter 10A current block measurement output short circuit current, and adjusting the constant current charging current potentiometer output current reaches a predetermined value
4 Adjustable constant potentiometer to the output voltage to the floating charge voltage;
5 Connect charging battery and test

(1, 2, 3, 4 steps for the module input power, output no-load not connected with the battery.)

 

LED constant current driving method
1 To determine the current you need to drive LED and maximum working voltage
2 Adjustable constant potentiometer, the output voltage is regulated to 5V
3 Multimeter 10A current block measurement output short circuit current, while regulating constant current potentiometer output current up to LED working current of a predetermined
4 Adjustable constant potentiometer to the output voltage to the LED maximum working voltage
5 Connect the LED and test

(1, 2, 3, 4 steps for the module input power, output no-load not connected with the LED lamps.)

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