Boost/step-down constant voltage constant current battery charging LCD display

Store Categories Store Categories eBay Motor Fashion Books, Movies & Music Electronics Collectibles & Art Home & Garden Sporting Goods Toys & Hobbies Business & Industrial Health & Beauty Other Item Description Description： 5A boost module Boost constant voltage constant current power supply module DCDC battery charging LCD display 5A boost module (constant voltage constant current LCD with crystal case) 1. Highlights 1.1. The button can completely shut down the output! Due to the special boost architecture, the output voltage is the input voltage after the traditional boost module is turned off. This product overcomes this problem. 1.2. Self-protection ability, the traditional boost module is easy to burn under the conditions of load start, setting output voltage lower than input voltage, output voltage regulation is too high, etc. This module overcomes these problems and adds more protection functions. . The input end anti-reverse protection, reverse connection will not burn; there is anti-backflow function, you can directly charge the battery; another over-power over-current and over-voltage protection. 1.3. Wide voltage range, up to 50V. 2. Product parameters Input voltage: 9-45V (When the input current is large, pay attention to the partial voltage on the input power line) Output voltage: 11-50V, the factory default output is about 15V (the input voltage is higher than the output voltage, the ERR interface will be displayed, and the output voltage needs to be increased) Output current: maximum 5A (less than 90W), output higher than 5A or 90W, automatic protection. Output power: natural heat dissipation 90W (within 5A) Voltage display: resolution 0.05V, range 0-50V, actual error ± 0.3V (for customers with strict precision requirements) Current display: resolution 0.005A, range 0-5A, actual error ± 0.1A (for customers with strict precision requirements) Working current: about 30mA Input reverse connection protection: Yes Output end anti-backflow: Yes Short circuit protection: Yes Size: length * width * height 82 * 52 * 41mm Weight: 93g 3. Function description 3.1. Module has IN/OUT, ON/OFF two buttons: IN/OUT button switches input voltage and output voltage display, long press can switch output current output power display; ON/OFF button control output ON or OFF, each time The default output state is OFF. 3.2.CC potentiometer is used to set the charging current, clockwise rotation, can increase the charging current, the current value setting needs to be set after the battery is connected, can not directly short the output setting; access the battery CHARGE indicator (red) Lights up, the FULL indicator (green) lights up when full; the right CV potentiometer is used to set the output voltage and rotate clockwise to increase the output voltage. The OUT indicator is an output status indicator that lights up when there is voltage at the output, otherwise it is off. 4. How to use 4.1. 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. 4.2. 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. 5. Notes 5.1. Module input IN-disable and output OUT-short, otherwise the constant current function will be invalid. 5.2. Please ensure that the power of the power supply is greater than the power required by the output load. Please reduce the power usage when the module is hot! 5.3. Please read the product description carefully before using it. Damage caused by improper use will not be compensated. 5.4. It is not supported to adjust the constant current value by shorting the output voltage. 5A step-down module 5A CNC step-down module (constant voltage constant current, liquid crystal display, with crystal shell) note! ! ! Delivery with accessories, you need to own assembly; module for the DC / DC Buck module, can not enter the transformer directly step down the AC power; to charge the battery, ensure that the module output first power and then connect the battery, the battery is full, first pull Battery, the last module power off, to prevent the battery voltage backflow (preferably at the output of the module is connected to a large current diode can prevent backflow). 1. Product Highlights 1.1. Plexiglass outer shell, beautiful design and generous, key touch texture is good, press the button to set the output voltage, eliminating the need to use a knife; 1.2. The button can control the output to turn off and on, and can set the product power-on default is ON or OFF; 1.3. LCD can display input and output voltage, output current, output power; 1.4. Input reverse polarity protection, reverse connection will not burn; 1.5. High efficiency over 93%, large current, small heat, output voltage 1.2-32V arbitrary regulation, constant current value of about 0-4.5A adjustment, suitable for office power, high-power LED constant current drive, lithium battery charging and so on! 2. Product parameters 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: length * width * height 70.5*48.4*28mm Weight: 62g 3. Function description 3.1. 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. 3.2. 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. 4. How to use 4.1. 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) 4.2. 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) 4.3. 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.) 5. Note 5.1. The module input ‘IN-‘ must not be shorted to the output ‘OUT-‘, otherwise the constant current function will fail. 5.2. 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! 5.3. Please read the product description carefully before use. Any damage caused by improper use will not be compensated. Feedback Payment Shipment About us Feedback We appreciate positive feedback . we always try our best to service our customers . so if you have ant question ,PLEASE DON’T HESITATE TO TELL US, we are always here to offer help . Payment We prefer PayPal .For purchasing multiple items , please contact us for a combined invoice . generally we would like to receive payment thin 48 hours if . Shipment We provide airmail service with good package . The items will be shipped within the nest 2 business days after we received the payment . when you buy multiple items ,your shipping cost will be combined with discount . 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