Dc-dc Cc Cv Buck Converter Step-down Power Supply Module 7-32v To 0.8-28v 12a Sm

US $150

  • HK, Hong Kong
  • Jun 11th
Features: 1. Fixed turn lamp current is 0.1 times the current value ( Used to identify whether the battery is fully charged When charging). 2. Made from a dedicated benchmark IC and high-precision current sensing resistor, proving a more stable constant current, (when 20 °c to 100 °c constant current 1A, temperature drift less than 1%). Particularly suitable for LED driver. 3. High output current, the max output current can reach 12A. 4. Four high frequency capacitance, can lower output ripple, enhance the work stabilization. Specifications: Module Properties: non-isolated step-down constant current, constant voltage module (CC CV) charging module Input voltage: DC 7-40V Output voltage:DC 0.8-35V continuously adjustable Output Current: 12A (when power tube's temperature exceeds 65 degrees, please add cooling fan) Turn lamp current: constant current value * ( 0.1 ) , turn the lamp current and constant value linkage, such as constant current value is 3A, turn the lamp current is set to a constant current is 0.1 times (0.1 * 3A = 0.3A). Lowest pressure: 1V Output Power: Maximum power is about 300W Conversion efficiency: up to about 95% Operating frequency: 300KHZ Output ripple: 20M bandwidth Input 24V Output 12V 5A ripple around 50mV (Excluding noise) Output short circuit protection : Yes, constant current Input Reverse Polarity Protection: None Output prevent backflow: None Wiring: Terminal No-load current: Typical 20mA (24V switch 12V) Load regulation: ± 1% ( constant ) Voltage regulation: ± 1% Dynamic response speed: 5% 200uS Potentiometer adjustment direction: clockwise (increase) , counterclockwise (decrease). the potentiometer(CV) closed to the input voltage is used to regulate voltage, the potentiometer(CC) closed to output voltage is used to regulate current (CC) Operating temperature: Industrial grade (-40 °c to +85 °c) ( please note the actual use of the power tube temperature , high temperature heat strengthened please ) Indicator: dual color indicator, charging indicator light is red, the green light means fully charged ( No load is green ) Size(approx): 65 x 47 x 22mm(L x W x H) Battery charge 1. Make sure of the battery float voltage and charging current that you need, as well as the input voltage of the module. 2. Adjust the constant voltage potentiometer and adjust the output voltage to about 5V. 3.Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make the output current to the expected charging current value. 4. Adjust the constant voltage potentiometer to make the output voltage reaches the float voltage. 5. Connected to the battery, try to charge. (1,2,3,4 steps to connect the power module input,output no-load does not connect battery.) LED constant current drive 1. Make sure the operating current and Max operating Voltage of the LED you need to drive. 2. Adjust the constant voltage potentiometer, adjust the output voltage to about 5V. 3. Use the multimeter in 10A current scale to measure output short-circuit current, and adjust the current potentiometer to make sure the output current to the expected LED operating current. 4. Adjust the constant voltage potentiometer to make the output voltage reach the maximum LED operating voltage. 5. Connect LED, test. (1,2,3,4 steps to connect the power module input, output No-load does not connect LED.) Package includes: 1 x DC buck converter module 12A     We accept PayPal only. Payment must be received within 3 Days from the date of purchase. Please leave note in PayPal when making the payment if you have any special request (colors/size). Orders will be processed instantly and dispatched in same day normally, so we do NOT accept any Email/Message note before or after you place orders.   Refund We offer 14 days return policy. Please contact us within 14 days t from the date you receive your order if you have any issues with the product and would like to return. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your eBay ID. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from eBay. OR, you may choose to have a replacement. Buyer is responsible for return shipping cost.   We offer WORLDWIDE SHIPPING. (Except China, Italy, and Croatia) Orders will be processed and dispatched within 24-48 hours after payment is clear. We only ship to confirmed eBay addresses. Your eBay address MUST MATCH your Shipping address. If you have not received your shipment within 30 business days from payment, please contact us. We will track the shipment and get back to you as soon as possible. Our goal is customer satisfaction! Please note that estimated delivery time is depended on destination countries, and may subject to customs clearance process, and weather condition in your area. Country               United States 5% 50% 30% 11% 5% Refund United Kingdom 10% 63% 19% 3% 4% Refund Australia 21% 50% 14% 7% 7% Refund France 11% 29% 44% 10% 7% Refund Germany 11% 22% 30% 21% 16% Refund Canada 0% 47% 31% 18% 4% Refund Spain 4% 25% 48% 13% 11% Refund If you have any questions, please feel free to email our service specialists 24 Hours a Day, 7 Days a Week.We will reply you ASAP. If no response within 24 Hours, please check the spam in your mail box. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help. Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem Please DON'T leave negative or neutral feedback if you haven't received item in 30 days, because we have mentioned the shipping time repeatedly   Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items. Powered by SoldEazy

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