LM2596/LM2577 Based Buck/Boost 15W Module

Scope:

• High-power constant current LED driver.
• Battery charger (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, nickel-cadmium nickel-metal hydride batteries (battery) charger, solar panels, wind generators.
• Solar Panel, Wind generator voltage regulator, Car Power Supply.
• Input voltage: DC 4~35V
• Output voltage: DC 1.25~25V
• Output Current: Rate 3A, Max 4A ( If more than 15W, please install the heat sink, this item do not include heat sink)
• Constant current range: 0~2A (adjustable)
• Revolving light current: constant current value * (1% -100%), Revolving light current value Linkage with the constant current value, such as the constant current value is 3A, Revolving light current is set to constant current of 0.1 times (0.1 * 3A = 0.3A) when adjusted to the constant current value when the 2A, then Revolving light current is 0.2A (0.1 * 2A = 0.2A). Default 0.1 times
• Minimum voltage pressure: 2V
• Output power: natural cooling 15W, (if install heat sink can be 25W)
• Conversion efficiency: 80% (the higher the output voltage, the higher the efficiency
• Operating Temperature: Industrial (-40°c to +85°c) (if ambient temperature exceeds 40 °c, please lower power use, or to enhance heat dissipation)
• Full load temperature rise: 45°c
• This Converter only can rise Voltage, it can not rise Power.
• if use Solar as power supply, please make sure the input power is 1.1 times than the output power.

Note:

Potentiometer adjustment direction: clockwise (increase), counterclockwise (decrease)

Indicator: constant current Indicator Red, Charging indicator Red, Full charge indicator Blue.

Output short circuit protection: Yes, constant current (constant current setting values)

Input Reverse Polarity Protection: None (Please Series diode at the input port.)

Connection: Welding, can be directly soldered to a PCB

Battery Charging method:

1. Make sure the recharge battery float voltage and charge current, input voltage of the module.

2. adjust constant voltage regulator, the output voltage about 3V.

3. With a multimeter ( to 10A) Measuring output Short-circuit current, Also adjust the constant regulator allows Output current reaches a predetermined charge current value;

4. Adjust Constant regulator allows Output voltage reaches the float voltage;

5. connected to the battery, try charging.

(1,2,3,4 step input connect power, output do not connect battery.)

LED constant current driver Usage:

1. Make sure LED current and the maximum operating voltage;

2. adjust constant voltage regulator, the output voltage about 3V.

3. With a multimeter ( to 10A) Measuring output Short-circuit current, Also adjust the constant regulator allows Output current reaches a predetermined LED working current value;

4. Adjust Constant regulator allows Output voltage Reach LED maximum working voltage;

5. Connected to the LED, test.

(1,2,3,4 take steps input connect power, output do not connected LED.)