You may also like

SAFE & SECURE SHOPPING
100% SATISFACTION GUARANTEED
FAST SHIPPING

You may also like

You may also like

DC-DC 5A Boost /Buck Step-Up / Down Power Supply Module Constant Voltage Current

Product Description

Specifications:
Input voltage:6.5-36V (input voltage less than 6.5V,current is not accurate, less than 5.5V,LCD display is not normal)
Output voltage:1.2-32V, factory default output 5V.
Output current:Can work stably at 3.5A for a long time, and can reach about 4.5A under enhanced heat dissipation (adjustable limit current is about 4.2-4.5A)
Output power: natural heat dissipation 50W (less than 3.5A),enhanced heat dissipation 75W
Voltage display: resolution 0.05V,range 1.2-32V, accuracy of about ± 0.1V (accuracy demanding carefully shot!)
Current display: resolution 0.005A,range 0-4.5A,accuracy ±0.05A (precision for those who require strict accuracy!)
Conversion efficiency:about 94%
Working current: about 30mA
Reverse input protection:Yes
Anti-backflow at the output end:None (If the battery is charged, first power on the module and then connect the battery, and ensure that the battery voltage is lower than the output voltage; if the condition is required, connect the anti-backup diode to the positive side of the output string)
Short circuit protection:Yes
Size:7.5x4.84x2.8cm/2.95x1.9x1.1inch


Function Description:

1.There are two buttons on the left side of the module:IN/OUT,ON/OFF:IN/OUT button to switch the input voltage and output voltage display,long press to switch the output current and output power display;ON/OFF button control output ON or OFF,Long press to set the next time the default output state is ON or OFF.
The right side of the module has two buttons:'+' and '-'. Press the '+' button to increase the output voltage by 0.05V.Press and hold it to increase it continuously. Press and hold it again for a continuous slow step increase of 0.1V and 1V. '-' button, the output voltage is reduced by 0.05V,long press can continue to reduce,and then long press to reduce the step by 0.1V and 1V.
2.ADJ-I is a current setting potentiometer, clockwise rotation,can increase the set current,when the load current reaches the set current, enter the constant current state, CC constant current indicator (red) lights up.The ON indicator is the output status indicator.It is on when the output has a voltage,otherwise it is off. The CHAR indicator is the charging indicator. When charging,it is on.The FULL indicator is full.If the set constant current value is 2A,the charging When the current reaches 0.2A or less,turn on the lamp, the FULL lamp is on,and the CHAR lamp is off.


How to use (Buck)

1.Use as an ordinary buck module with overcurrent protection capability
(1) Press the key to set the output voltage to your desired voltage.

(2) Turn the ADJ-I current adjustment potentiometer counterclockwise first,then measure the output short-circuit current with the multimeter 10A current range (directly connect the two test leads to the output),and adjust the ADJ-I constant current potentiometer clockwise to make the output The current reaches the overcurrent protection value you want to set.(For example, the current value displayed by the multimeter is 2A,then when you use the module,the maximum current can only reach 2A.When the current reaches 2A,the red constant current indicator is on,otherwise the indicator is off)


How to use (BOOST)
1. Use as a normal boost module with overcurrent protection
(1) Adjust the CV constant voltage device so that the output voltage reaches the voltage you want.
(2) Adjust the CC current adjustment potentiometer for more than 20 turns. Adjust the CC potentiometer clockwise to make the output current reach the overcurrent protection value you want to set. If the ERR interface is displayed after the load is connected, then adjust the CC potentiometer clockwise. Increase the limit current.
2. Use as a battery charger
A module without a constant current function cannot be used to charge a battery. Because the voltage difference between the battery and the charger that consumes electricity is large, the charging current is too large, causing damage to the battery. Therefore, the battery should be charged with constant current at the beginning, and automatically switched back to constant voltage charging when charging to a certain extent.
(1) Determine the floating charge voltage and charging current of the rechargeable battery you need, and adjust the output voltage to the charging voltage;
(2) First rotate the CC potentiometer counterclockwise for more than 20 turns, connect the battery, rotate the CC potentiometer clockwise, and gradually increase the charging current to the charging current you need.
3. Use as a high power LED constant current drive module
(1) Determine the operating current and maximum operating voltage at which you need to drive the LEDs;
(2) Adjust the CV potentiometer so that the output voltage reaches the maximum working voltage of the LED;
(3) Firstly rotate the CC potentiometer counterclockwise for more than 20 turns, insert the LED load, adjust the CC potentiometer clockwise to make the output current reach the predetermined LED working current;


Use as a Battery Charger

A module without a constant current function cannot be used to charge the battery.Due to the large voltage difference between the battery and the charger when the battery is exhausted,the charging current is too large and the battery is damaged.So when you start, you need to charge the battery with a constant current,and when it is charged to a certain degree,it automatically switches back to constant voltage charging.
(1)Make sure you need the float charge voltage and charge current of the rechargeable battery;(if the lithium battery parameter is 3.7V/2200mAh,then the float voltage is 4.2V,the maximum charge current is 1C,ie 2200mA)
(2) Under no-load conditions, press the button to adjust the output voltage to reach the float voltage;(If charging the 3.7V lithium battery,adjust the output voltage to 4.2V)
(3)Turn the ADJ-I current adjustment potentiometer counterclockwise first,then measure the output short circuit current with the multimeter's 10A current range (directly connect the two test leads to the output terminal) and adjust the ADJ-I constant current potentiometer clockwise. Make the output current reach the predetermined charging current value;
(4)Connect the battery and charge it.
(When setting steps 1,2,and 3:The output terminal is empty and no battery is connected)
Use as a High Power LED Constant Current Drive Module
(1) Make sure that you need to drive the LED's operating current and maximum operating voltage;
(2) Under no-load conditions, press the key to set the output voltage to the maximum LED operating voltage;
(3) Turn the ADJ-I current adjustment potentiometer counterclockwise first,then measure the output short circuit current with the multimeter's 10A current range (directly connect the two test leads to the output terminal) and adjust the ADJ-I constant current potentiometer clockwise. Make the output current reach the predetermined LED operating current;
(4) Connect the LED,test machine.
(When setting steps 1, 2, and 3:Output no-load LED light.)


Note:

1.The module input 'IN-' must not be shorted to the output 'OUT-', otherwise the constant current function will fail.
2.Please ensure that the power supply power is greater than the power required by the output load. When the module is hot, reduce the power usage!
3.Please read the product description carefully before use. 
4.Transition: 1cm=10mm=0.39inch
5.Please allow 0-3mm error due to manual measurement.
6.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
Package Included:
1x DC-DC 5A CNC Step-down Module
1x Case


(1)We can supply a wide range of products to meet the ever-changing market demands. Customized orders are welcomed.  Our products sell well in North America, West Europe and Australia. Our company insists on the principle of "Good service, the best quality and competitive price".

(2)We are increasingly expanding international markets based on quality products, excellent service, reasonable prices and timely delivery. Please contact us at any time for more information.

We can accept Paypal, Google Pay, Apple Pay, credit card payments and many other payment methods.

We would ship the product within 1-3 working days upon receipt of payment, our goal is: ship it as fast as we can.

To USA 7-15 business days
To Australia and UK 8-19 business days
To Canada 11-25 business days

South America ,Russia and other countries 19-35 business days


But sometimes international delivery is highly depended on the courier company and local customs/duties. If you do not receive your item on time, please contact us immediately for further assistance.

Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility. Please check with your country customs office to determine what these additional costs will be prior to bidding/buying.

DHL can not reach to few remote areas in your country,if you choose Express and living remote areas. You should pay the additional shipping charge. If your area belongs to remote areas, the parcel can't reach, or you need to pay more freight, our customer service will contact you.

The item will be sent to your address listed in the Ebay. Please verify your address during checkout. We are not responsible for any wrong or undeliverable addresses.

If you need to add the tracking number, be sure to contact customer service before making orders especial for the people comes from the country of Eastern Europe, the Middle East and South American. It needs to pay the extra shipping cost!




* We believe our items are so outstanding. We are convinced you will be happy with your Purchase.

 

* If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund to you after the returned item arrived at our warehouse.

 

* Please include your eBay ID and item number with any email requests.

We are committed to providing the best service to our customers, any questions before placing an order welcome to consult us at any time, such as shipping problems caused by damage to items and other circumstances, please contact us first, we will actively solve the problem for you.

Copyright © 2022 Tongtool