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US$1.99

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DC-DC 7-35V to 1.25-30V CC CV LED Driver Buck Converter Power Supply Charging Step Down Module

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                  Specifications:
                   
                  Input voltage: 7-35V
                  Output voltage: 1.25-30V
                  Output Current: Max 3A ( If more than 15W, please install the heat sink, this item do not include heat sink)
                  Constant current range :0-3A (adjustable)
                  Min Voltage pressure: 2V
                  Output power: natural cooling 15W
                  Conversion efficiency: 85% (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
                  No-load Current: typical 10mA (12V to 4.2V)
                  Load Regulation: ± 1%
                  Voltage Regulation: ± 0.5%
                  Current Accuracy and temperature: Actual Testing, Temperature changes from 20 degrees To 100 degrees, Constant current value change Less than 1% (constant current value 1A)
                  Dynamic response speed: 5% 200uS
                  Potentiometer adjustment direction:Clockwise (increase),Counterclockwise (decrease)
                  Indicator LED: Charging LED Red, Full Charge LED Green
                  Output Short-circuit Protection:YES
                  Input Reverse Polarity Protection:YES
                  Output Prevent Countercurrent: YES
                   
                  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 gets a predetermined charge current value;
                  4. Adjust Constant regulator allows Output voltage gets 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 gets a predetermined LED working current value;
                  4. Adjust Constant regulator allows Output voltage get LED maximum working voltage;
                  5. Connected to the LED, test.
                  (1,2,3,4 take steps input connect power, output do not connected LED.)
                   
                  Applications:
                   
                  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.
                   
                  Package Includes:
                   
                  1 x DC-DC 7-35V to 1.25-30V Converter Power Supply Module


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