DC-DC 10A 7-40V Step Down Buck Converter To 1.2-35V LED 300W Power Supply Module

Store Categories Store Categories Other DC-DC 10A 7-40V Step Down Buck Converter To 1.2-35V LED 300W Power Supply Module Product Description K ind tips: (In stock: current is 8-9A, input voltage is 40V, output voltage is about 35V) (Due to the discontinuation of the 12A current chip manufacturer, the replacement chip current has been reduced from the previous 12A to 8A current (the actual test current is about 9A), the input voltage has been reduced from the previous 32V to 40V, and the output voltage has been reduced from the previous 28V to 35V. It can be 10 series Powered by high-power LED. We will notify you when the 12A chip arrives.) Size: 65(length)*47(width)*23.5(height) mm typical application: Adjustable power supply (12A power is large enough), high-power LED driver, LED display driver, lead-acid battery charging, lithium battery charging, vehicle power supply, vehicle laptop power supply (step-down), regulated power supply, low-voltage system power supply, (such as children Toy car uses 12V battery to step down to 6V), 24V to 12V 12A \\\\12V to 5V 12A \\\\24V to 5V 12A \\\\24V to 19V20V, etc. The application range is very wide. 1. The fixed turning light current is 0.1 times the constant current value (used to identify whether the battery is full during charging); 2. The use of high-end reference IC and high-precision sampling resistor makes the constant current more stable (the temperature drift is less than 5% when the constant current is from 20 degrees to 60 degrees). Especially suitable for LED driver 3. The output current is large, the output current can be 12A, which meets most needs. 4.4 high-frequency capacitors, effectively reducing output ripple and improving working stability 5. Dual heat sink design, MOS tube and Schottky diode independent heat sink, good heat dissipation without affecting each other 6. Use large-size iron-silicon-aluminum magnetic rings at all costs to improve work efficiency, and use pure copper double wires to reduce heat generation and improve efficiency. 7. 3296 multi-turn potentiometer, with high voltage and current adjustment accuracy and good stability. 8. Current sampling resistor: Current sampling has high accuracy, good stability, and small temperature drift. LED . 9. Two-color indicator light, the working status is clear at a glance. Charge. 10. Both voltage and current are adjustable, and the effect of making an adjustable power supply is good. 12A has large current and sufficient power. Module parameters： Module properties: non-isolated step-down constant current and constant voltage module (CC CV) charging module Scope of application: high-power LED constant current drive, lithium battery charging (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, nickel-cadmium nickel-hydrogen battery (battery pack) charging, solar panels, wind turbines Input voltage: 7-32V (without constant current 5-32V) Output voltage: (1) Continuously adjustable (0.8-28V) (2) Fixed output (any choice between 0.8-28V), please inform the shopkeeper when purchasing. (Temporarily only for batch customers, all samples will be sent with adjustable models) Output current: 12A (please add a fan to dissipate heat if the power tube temperature exceeds 65 degrees, 24V to 12V within 6A generally can be used without a fan in an open environment) Constant current range: 0.2-12A (adjustable) (without constant current does not have this function) Turning light current: constant current value * (0.1), turning light current is linked to the constant current value, for example, the constant current value is 3A, and the turning light current is set to 0.1 times of the constant current (0.1*3A=0.3A). When the constant current value is When the current value is adjusted to 2A, the turning light current is 0.1 times the constant current (0.1*2A=0.2A). The second version is fixed at 0.1 times (the actual turning light current is an approximate value, not an absolute value), which is used to indicate whether the charge is full. Voltage difference: 1V Output power: The power is about 300W. If the temperature of the power tube exceeds 65 degrees, please add a fan. Conversion efficiency: about 95% (the higher the output voltage, the higher the efficiency) Working frequency: 300KHZ Output ripple: 20M bandwidth (for reference only) Input 24V, output 12V ripple is about 50mV (excluding noise) Working temperature: industrial grade (-40℃ to +85℃) (please pay attention to the power tube temperature in actual use, if the temperature is too high, please strengthen heat dissipation) No-load current: typical 20mA (24V to 12V) Load regulation: ±1% (constant voltage) Voltage regulation rate: ±1% Constant current accuracy and temperature: In actual testing, the temperature on the module changed from 25 degrees to 60 degrees, and the constant current value changed less than 5% (constant current value) Dynamic response speed: 5% 200uS Potentiometer adjustment direction: clockwise (increase), counterclockwise (decrease). The potentiometer close to the input is voltage adjustment (CV), and the potentiometer close to the output is current adjustment (CC). Indicator light: two-color indicator light, the charging indicator light is red, the charging completed indicator light is green (no load is connected, the indicator light is green), the indicator light without constant current is red. Output short circuit protection: yes, constant current (currently set constant current value) Input reverse polarity protection: None, Output countercurrent: None. Wiring method: terminal block Battery charging How to use: 1. Determine the float voltage and charging current of the battery you need to recharge, and the input voltage of the module; 2. Adjust the constant voltage potentiometer to adjust the output voltage to about 5V. 3. Use a multimeter with a 10A current block to measure the output short-circuit current, and at the same time adjust the constant current potentiometer to make the output current the predetermined charging current value; 4. Adjust the constant voltage potentiometer to make the output voltage float; 5. Connect the battery and try charging. (Steps 1, 2, 3, and 4 connect the module input to power, and the output is unloaded and does not connect to the battery.) LED constant current driver usage: 1. Determine the working current and working voltage you need to drive the LED; 2. Adjust the constant voltage potentiometer to adjust the output voltage to about 5V. 3. Use a multimeter with a 10A current block to measure the output short-circuit current, and at the same time adjust the constant current potentiometer to make the output current the predetermined LED operating current; 4. Adjust the constant voltage potentiometer to make the output voltage LED working voltage; 5. Connect the LED and test the machine. (Steps 1, 2, 3, and 4 connect the module input to the power supply, and the output is unloaded and does not connect to the LED light.) P ackage Included: 1PC Note: 1. We can offer b ulk pric e , i f yo u nee d large quantity , please feel free to send a message to cons ult cust om er servic e for wholesa l e price . 2.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Payment Policy Shipping Policy Returns Policy Feedback Payment Policy 1.EBAY Managed Payment. But we only Accept your Ebay Address, please Make sure it’s 100% right.. 2.If you want to revise the shipping address. Please contact us within 24 hours by ebay message. Because our handing time is 1-3 business day. Thanks in advance for your close cooperation! 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