LM2596 LED Driver DC-DC Step-down Adjustable CC/CV Power Supply Module
320Tk
Author : Abdul Lotif
- Description
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Description
- LM2596 LED Driver DC-DC Step-down Adjustable CC/CV Power Supply module
- The Fixed turn the lamp current to 0.1 times the value of the constant current (at the when 2 identify been the \`is full);
- Increased input reverse polarity for protection, diode;
- Using dedicated reference for IC, and high – precision from the resistor, so that the constant current is more stable, (20 degrees to 100 degrees, the constant current 1 a, when the temperature drift of less than 1%).
- Particularly suitable for the LED driver
- High – power LED constant current drive
- Lithium \`charger (o ferroelectric)
- 4 v, 6 v, 12 v, 14 v, 24 v \`charger
- Nickel cadmium, Nickel metal hydride \`pack charger
- For * Solar panels and wind turbines
- The Module Properties: non – isolated constant current and voltage of the Module
- Rectification: non – synchronous Rectification
- Input voltage: 7 v – 35 v
- the Output voltage: 1.25 V – 30 V
- the Output current: adjustable maximum 3 a
- Conversion efficiency: 92% (the highest)
- Switching frequency, 150 KHZ
- The Output ripple: 50 mv (Max) 20 m bandwidth
- The Load Regulation: plus or minus 0.5%
- Voltage Regulation: plus or minus 2.5%
- Operating Temperature: – 40 ° to + 85 °
- Use:
- Make sure of the voltage and current of the \`you need to charge
- Adjust the constant voltage potentiometer to make the output voltage same to the charge voltage
- Potentiometer Adjustment Direction: Clockwise (happens), counterclockwise (decrease)
- Use the multimeter in 10 a current scale to measure the output short – circuit current, and adjust the current potentiometer to make sure the output current to the expected charging current value
- The charge current of transfer lamp is The default 0.1 times of The charging current (constant current value)
- Connected to the \`and try to charging (for previous five steps, the module input terminal is Connected to the power source, the output load is NOT Connected to baeries).
- LED Constant Current Driver Use:
- Make sure operating current and Max operating Voltage of the LED you need to drive.
- Adjust the constant voltage potentiometer to make sure the output voltage is up to the LED Max operating voltage.
- Use the multimeter in 10 a current scale to measure the output short – circuit current, and adjust the current potentiometer. To make sure the output current to the expected LED operating current.
- Join the LED test (For the above three steps, the module input terminal is connected to the power source, the output load is NOT connected to the LED).
- The scope of application:
- Charging for lithium ion baeries: the when the lithium ion \`voltage is low. If use the constant voltage Charging directly. Due to pressure is too large, leading to the\` damage. So from the beginning to use the constant current Charging. When Charging the to a certain, automatic switch back to the constant voltage Charging.
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