20A 300W DC-DC Buck Converter Step Down Module LED Driver Step Down Power Supply Module

Power Supply Module
$3.12
Quantity
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Description
Products Description
Module properties: synchronous rifier non isolated step-down constant current constant voltage module CV charging module Scope of application: high power LED constant current drive, lithium battery charging (including ferroelrics), 4V, 6V, 12V, 14V, 24V battery charging, Ni Cd Ni MH battery (battery pack) charging, solar panels, wind power generator. Input voltage: 6-40VDC Output voltage: continuous adjustable (1.2-35VDC) for a long time of less than 32V (applied to the application of the input voltage higher than the output voltage can not be boosted) Output current: MAX 20A , long time work 15A (long time within the power tube temperature exceeds 65 degrees with the cooling fan, high voltage output to the amount of use) Limit range: 0.2-20A (adjustment) module is more than 65 degrees, please add the fan. Lowest voltage difference: 3V Working frequency: 150KHZ Conversion efficiency: MAX 96% efficiency is related to the pressure difference and the use envonment Output ripple: around 50mV of ripple (without noise) 20M bandwidth (reference only) input 24V
Working temperature: -10 C to +75 C) (please pay attention to the temperature of the power pipe in actual use. Please strengthen the heat or reduce the use of the heat.) Potentiometer adjustment: clockwise (increase), counterclockwise (decrease) Output short ccuit protion: (instantaneous protion) constant current (current setting constant current value is not long short ccuited) Input back protion: No Output anti - reverse perfusion: No, for load power or inductive load needs additional 2 pole tube! Connion mode: terminal Module size: 60*53*30MM
The output current regulation method:
1, adjust the CV potentiometer and set the output voltage to the voltage you need according to your load requement. 2, a counter clockwise CC potentiometer of about 30 les (that is,set the output current to the minimum), conned to the LED, you need to adjust CC potentiometer current for battery charging, the battery is fully discharged, the output received again, adjusting CC to the current you need, (for charging must use a dead battery transfer is allowed because the battery remaining power increasing, the charging current is small).
Certificates & Production Processes
Packing & Delivery
1. Normal packaging.
2. Export carton.
3. Custom packing.
4. All orders are will be shipped within 3-25 days after customers confirmed payment.
Payment&Shipping
PAYMENT Standard payment terms: pay 30% deposit in advance, 70% balance before shipment. Online trade assurance order, all is up to you. More payment terms could be provided! (T/T,PAYPAL WESTERN UNION) SHIPPING After-sales Service: 100% strict inspection and test before shipment. Replace in one weekonce original defective goods found on arrival. Enjoy one year warranty.
FAQ
Q: What is the minimum order quantity for your products? A: If you need a small order, please contact us Q: How long is your delivery time? A: The product will be sent within 3 days after payment is confirmed, and the delivery time is 3 to 6 days Q: Do you test or inspect all items before delivery? A: Yes, we tested and checked all items before shipment. Q. What is your warranty? A: 60 days after receiving the goods. Our products are 100% tested before being shipped. If the goods are defective, please notify us within 3 days after delivery. Any item must be returned as is to be eligible for a refund or payment. The buyer is responsible for all freight incurred. Q: How do I pay for the order? A: We accept wire transfer, Western Union, Pay Pal, moneygram, escrow (if you prefer other methods, please contact us)