HOME New Arrivals Best sellers Daily Deals Help Desk Promotion News Store Categroy Store home Robots Raspberry Pi Wholesale Products Modules Development board Combination Items Breadboard DIY PCB Universal Board ICs & Processors Cables&Connectors Sensor Relay Crystal Oscillator Transistors Diodes Switch Battery & related Resistors&Potentiometers Tools Capacitor Inductor Digital tube Voltage regulator Fuse Buzzers&Speaker Helpful Links Store Newsletter Add my Store to your Favorites and receive my email newsletters about new items and special promotions! General Interest Hot Products title $16.90 title $1.96 title $1.59 title $1.75 title $3.20 title $5.35 title $7.90 Constant Current Voltage LED Driver Batery Charging Module LM2596 1.25~30V Input 1. Feature 1.Use high quality chip LM2596, high precision(Max 92%), low calorific value. 2.Use the original low ESR Sanyo filter capacitor which can make the ripple voltage as low as 50mV 3.Use machines to finish the SMD, reflow soldering. What’s more, all of those items have passed 2 hours burn-in test to make sure the stability before shipment. 2. Application 1.Charging for lithium battery: When the battery is under low voltage, it will be burned if we charge it with constant voltage. So we should charge it with constant current. 2.Driver high power LED: The power of one LED is limited, when we need higher brightness, we can use this module to achieve constant current drive for multiple LEDs. 3. Any other occasions which need constant current input. 2.Electric parameter Output voltage: 7~35V Input voltage: 1.25~30V Output current: Max 3A Transfer efficiency: 92%(Max) Switching frequency: 150KHz Product size: 48mm(L)*23mm(W)*14mm(H) 3. Note It is a adjustable step down power module, we can change the output voltage by adjusting the blue adjustable resistor. The input/output voltage difference value is 2V, the Min output voltage is 1.23V. Make sure the following pin connection are right, the wrong connect will bring damage to this module “IN-” stands for input cathode “IN+” stands for input anode “OUT-”stands for output cathode “OUT+”stands for output anode 4. How to charge the battery 1). We should know the float voltage and charging current of the battery which needed to be charged, we also should know the input voltage of this module. 2). Adjust the Constant potentiometer until the output voltage is about 5V. 3). Use the 10A current function of the multimeter to test the input short-circuit current, adjust the constant-current potentiometer until the input current reaches the proper charging current. 4). Turn lamp current is default as 0.1 times of the charging current ( constant value ) 5). Adjust the constant-voltage potentimeter until the output voltage reaches the float voltage ; 6). Connect it with the battery and test the charging. (For the 1,2,3,4,5 step, connect the input port of this module to the power supply and do not connect the output port with battery). 7).LED constant-current driver. ?. Make sure the operating current and maximum operating voltage of the LED driver ; ?. Adjust the constant-voltage potentiometer until the output voltage is about 5V. ?. Use the 10A current function of the multimeter to test the input short-circuit current, adjust the constant-current potentiometer until the input current reaches the working current of the LED. ?. Adjust the constant-voltage potentimeter until the output voltage reaches the MAX working voltage of the LED. ?. Connect the LED, test it. ( For the 1,2,3,4 steps, just connect the input port of this module to the power supply, do not connect the output port with the LED.) 5. 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 5V. 3). With a multimeter ( to 10A) Measuring output Short-circuit current, Also adjust the constant regulator allows Output current reaches a predetermined charge current value; 4). Adjust Constant regulator allows Output voltage reaches the float voltage; 5). Connected to the battery, try charging. (1,2,3,4 step input connect power, output do not connect battery.) 6. LED constant current driver Usage: 1). Make sure LED current and the maximum operating voltage; 2). Aadjust constant voltage regulator, the output voltage about 5V. 3). With a multimeter ( to 10A) Measuring output Short-circuit current, Also adjust the constant regulator allows Output current reaches a predetermined LED working current value; 4). Adjust Constant regulator allows Output voltage Reach LED maximum working voltage; 5). Connected to the LED, test. (1,2,3,4 take steps input connect power, output do not connected LED.) SHIPPING PAYMENT RETURNS FEEDBACK ABOUT US 1)All items will be shipped to your paypal address .Please update your latest address when you check out,and please make sure to provide us with correct,precise and detailed shipping address. 2)Most of the items will be shipped via Hongkong Airmail/Singapore Airmail .To US customers,we will send the package via E-packet . 3)All items will be shipped in 1-2 business days (excluding Sat,Sun & Holiday) after payment received and cleared. For the long-time holiday, we'll post the info on our store and reply you automatically via emails. 4)Tax:We will do our best to help you to clear the goods,and the tax depends on each country custom. 5)If you don't receive items over 30 business days,please make sure to contact us before leaving any neutral or negative feedbacks.We'll try our best to help you solve the problem. 6)The product in our store is free shipping. But the shipping method is different based on your order.If your order is more than $50 ,we will send the items to you with tracking number for free.If your order is less than $50,the registered mail fee is on your side. We could also deliver your item via EMS,DHL or Fedex based on your requirement. We Only Accept Paypal on Ebay. For specific requirements, please feel free to contact us. 1)If for some reason you're not satisfied with our service or product quality, please contact us within 3 days after you get the package, you can return the products to us in original package and we will refund your money after we get the package!(Shipping cost is NOT refundable and you should responsible for the return shipping) 2)Although we test each item and they are packed professionally, few item(less than 0.1%) might be damaged during the shipping. You are welcome to contact us within 3 days after you receive your package about replacement. 3)Repair Some items might be broken caused by improper use, we are always happy to offer any helpful repair service. Of course, you can send the broken items back to us and we will help you resolve the situation and charge reasonable repair fees. Feedback is important to all of us participating on the eBay community. We are always working hard for maintain high standards of excellence and strive for 100% customer satisfaction. So yourPOSITIVE FEEDBACK is very important. Here is an illustration showing how to leave the positive feedback, please follow the following step. Thank you so much. And welcome back to our store again. ICs_Processors_Store is a leading company specializes in all kinds of IC products, such as electronic devices and components, development modules, development boards, consumptive materials and so on. ICs_Processors_Store has gained thousands upon thousands of registered customers from all over the world. We offer world wide free shipping and have already shipped to more than 150 countries including United Sates, United Kingdom, Canada, Australia, France, Germany, Russia, Italy, New Zealand, Spain, Brazil, Japan, Singapore, Korean, etc. Here is a list of reasons for trusting ICs_Processors_Store as your reliable source of IC products or business cooperator: 1.Competitive Price 2.High Quality Products 3.Excellent R & D team 4.Excellent shopping platform 5.Excellent Customer Experience 6.Excellent Team Work In ICs_Processors_Store, we provide variety of IC products, sell them at the best price, and offer the best service.You will never regret to have ICs_Processors_Store as your reliable IC item source, supplier, and business cooperators. Have fun! Robots Wholesale Products Sensor DIY Power Modules Development board Wireless Module LCD Modules inkfrog terapeak inkFrog Analytics On Jun-11-16 at 10:12:02 PDT, seller added the following information:
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