adjustable DC to DC buck converter power supply voltmeter ammeter Power Display, US $14.20 – Picture 0

adjustable DC to DC buck converter power supply voltmeter ammeter Power Display, US $14.20 – Picture 1

adjustable DC to DC buck converter power supply voltmeter ammeter Power Display, US $14.20 – Picture 2

adjustable DC to DC buck converter power supply voltmeter ammeter Power Display, US $14.20 – Picture 3

adjustable DC to DC buck converter power supply voltmeter ammeter Power Display, US $14.20 – Picture 4

adjustable DC to DC buck converter power supply voltmeter ammeter Power Display, US $14.20 – Picture 5

adjustable DC to DC buck converter power supply voltmeter ammeter Power Display, US $14.20 – Picture 6

adjustable DC to DC buck converter power supply voltmeter ammeter Power Display, US $14.20 – Picture 7

adjustable DC to DC buck converter power supply voltmeter ammeter Power Display, US $14.20 – Picture 8

Adjustable Dc To Dc Buck Converter Power Supply Voltmeter Ammeter Power Display

US $14.20

Guangzhou ,Guangdong, China
Jan 29th

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welcome to our shop! Description 5-36V to 1.25-32V adjustable DC to DC buck converter power supply Voltage Regulator constant voltage constant current buck With voltmeter ammeter Power Display USB Output Interface for LED Driver Lithium battery Charging #1400211 Module parameters Input voltage: DC 5-36V Output voltage: DC1.25-32V adjustable Output current: adjustable, maximum 4.5A Output Power: Max 50W Operating temperature: -40 to +85 ° C Operating frequency: 180KHz Short circuit protection: Yes Overtemperature protection: (automatically shut off the output after overtemperature) Input reverse polarity protection: No, (if necessary, please in input String into high current diode) Installation: 4pcs 3mm screws Wiring: V-IN is the input, V-OUT is the output Module size :( length) 68.2mm (W) 38.8mm (high) 15mm Module Features 1.bulid-in voltage, current, power meter, 2.bulid-inUSB output interface. (Note: USB output voltage is consistent with the module output voltage, Not fixed 5V output, Please confirm the output voltage to the USB device charging) more information about this module Use as an ordinary buck modules with overcurrent protection capabilities; Usage: (1) Press the right button, led siplay adjusted to show the output voltage, Adjust the "constant voltage potentiometer" So that the output voltage reaches the voltage value you want; (2) led display is adjusted to Display output current, Directly short circuit the output of the module (Thick wire short circuit output), At this point adjustment "constant potentiometer" let LED dispaly show current value ,Reach Preset overcurrent value; (Such as on-board ammeter shows current values 4A, then the module maximum current is limited 4A, current to 4A when the red light is on) (3) connected to the load and work. As various voltage values of lithium batteries, batteries, nickel-cadmium nickel-metal hydride batteries (battery) charger, Used in solar panels, wind turbines and other occasions; The module does not function with a constant current can not be used to charge the battery, After consumption of electricity due to the battery and charger voltage differential is large, Lead the charge current is too large, Causing cell damage, So when you want to start using the constant current charging the battery, When charged to a certain extent, when to automatically switch back to constant voltage charging. Usage: (A) to determine the battery float voltage and charging current (If the lithium battery parameters for 3.7V / 2200mAh, then the float voltage to 4.2V, the maximum charging current 1C, namely 2200mA) (2) no-load conditions, the display module is led to the display to adjust the output voltage, Adjust the "constant voltage potentiometer" so that the output voltage reaches the float voltage; (3) The digital display output current is adjusted to the table, Directly short circuit the output of the module (Thick wire short circuit output), At this point adjustment "constant current potentiometer" The digital current value reaches the preset table on the charge current value; (4) Charge turn the lamp current default factory is 0.1 times the charging current; (Battery charging current is gradually reduced, and gradually charged by a constant current constant voltage charging into ,If the charge current setting is 1A, then when the charge current is less than 0.1A when the blue lights off, the green light is on, then the battery is fully charged) (5) connected to the battery charge. (Step 1,2,3,4 are: input termination power supply, Output unloaded, do not take the battery) used as a high-power LED constant current driver module; Constant voltage and constant current modes, there are LED indicates which mode is currently in the module; 1.to determine the LED current and maximum working voltage; 2.Under the no-load conditions, adjust to the digital table shows the output voltage , Adjust the "constant voltage potentiometer" LED output voltage reaches the operating voltage; 3.digital table adjusted to show the output current, Outputs directly short circuit module (coarse wire short circuit output), At this point adjustment "constant current potentiometer" the current value of digital sheet reaches a preset LED operating current; 4 .Connect LED, test machine. (Step 1,2,3 is: connect power supply input, output no-load, Not connected LED lights) When the lithium battery charger, you can set the float voltage and charging current size, there are indicators that Show is is charging or is already full; Current limiting protection, even if the output short circuit, it will not burn module. Onboard voltage meter can be self-calibration Usage: (1) Press the right button, led siplay adjusted to show the output voltage, Adjust the "constant voltage potentiometer" So that the output voltage reaches the voltage value you want; (2) led display is adjusted to Display output current, Directly short circuit the output of the module (Thick wire short circuit output), At this point adjustment "constant potentiometer" let LED dispaly show current value ,Reach Preset overcurrent value; (Such as on-board ammeter shows current values 4A, then the module maximum current is limited 4A, current to 4A when the red light is on) (3) connected to the load and work. Considerations Module Input GND line And the output GND line not connected together, This will cause the module current sampling resistor bypass, So that the module can not adjust the output current size, When connected to a load module is easy to burn. Module output of a current sampling resistor string, There is 0 ~ 0.2V voltage drop across the connected load, Is a normal phenomenon. More than 3A, 35W output, please enhance heat dissipation! Note: Some customers report: "The module can not be adjusted, the output voltage is always equal to the input voltage." When you encounter this problem, please counterclockwise rotation of the potentiometer 10 laps or more, then you can adjust the output voltage. Because the factory default output voltage is 17V. How to adjust the accuracy? (1)Output voltage calibration steps Step 1, adjust the right button so that "OUT" LED lighted, the voltmeter shows the value of output voltage; Press the right button for more than 2 seconds, release, voltmeter and "OUT" LED flashes in synchronization so that youenter the output voltage calibration mode. Step 2,press the right button (normal speed), the voltage value is adding up a unit; Press the left button, minus a unit; Due to a unit is less than 0.1V, the minimum voltage display to 0.1V, so you need to continuously press 1-5 times to see the voltmeter change 0.1V, how many times voltmeter change 0.1V by pressing the key, depending on the current display voltage, the higher the voltage, the fewer the number of press. Step 3,press the right button for more than 2 seconds, release, to exit the output voltage calibration mode. All parameters set to automatically power down to save. (2)Input voltage calibration steps Step 1, adjust the right button so that "IN" LED lighted, the voltmeter shows the value of input voltage; press the right button for more than 2 seconds, release, voltmeter and "IN" LED flashes in synchronization so that you enter the input voltage calibration mode. Steps 2 and 3, consistent with the output voltage calibration method. Similarly ammeter regulator packing including: 1x DC to DC buck converter Payment We only accept payments via paypal. All payments must be prepaid, no Cash and COD payment. We will ship the item to the address on your paypal payment notice, Please confirm your shipping address in the PayPal Account. If you have any problem about payment , please contact us. Delivery details Item will be shipped within 3 working days after full payment is received. We ship worldwide with flat rate shipping by post Air mail, the shipment usually takes 15-45 business days . We can also provide express post by EMS(5-8 days) or UPS(4-5 days). The cost is higher than standard postage, extra shipping fees is needed. if you need express post please contact us ! About us We will leave positive feedback to buyer as soon as buyer pays for the item .Your satisfaction is our first priority. Please leave us positive feedback upon satisfaction of the item. Please email us before leaving negative and neutral feedback. We will try our best to solve the issue. We will leave positive feedback to buyer as soon as buyer pays for the item . Contact us we do try respond as quickly as possible. Due to time zone difference, please allow 12~24 hours to get your mail replied. If you have any questions, Please contact with us via ebay message or our customer service e-mail .thanks for your buying ,wishes you have a happy shopping from our shop ! Engineered for professional eBay sellers!

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	product name	DC to DC buck converter
Output voltage	DC1.25-32V adjustable
module name	power supply Voltage Regulator
Short circuit protection	Yes
Input voltage	DC 5-36V