Features:
LCD can display input/output voltage, output current/output power/output capacity/output time;
Numerical control adjustment, fast, can be boosted or stepped down, output voltage can be adjusted arbitrarily from 0.5-30V, and the current limit is arbitrarily adjusted from 0-4A;
Input terminal anti-reverse connection protection, reverse connection will not burn;
The output end is anti-backflow, and there is no need to add another anti-backflow tube when charging the battery;
The module can be set to turn on/off by default;
A variety of software protection mechanisms, and the protection threshold is adjustable. After the module's working parameters exceed the protection threshold, the output is automatically turned off.
The output ripple is small, with π-type filtering;
Thicken the heat sink.
parameter:
Input voltage: 5.0-30V
Output voltage: 0.5-30V
Output current: can work stably at 3A for a long time, 4A with enhanced heat dissipation
Output power: natural heat dissipation 35W, enhanced heat dissipation 50W
Voltage display resolution: 0.01V
Current display resolution: 0.001A
Conversion efficiency: about 88%
Soft start: Yes (it may fail when the module with high power load is started)
protection mechanism: Input anti-reverse connection; Output anti-backflow; Input undervoltage protection (4.8-30V adjustable, default 4.8V) Output overvoltage protection (0.5-31V adjustable, default 31V) Output overcurrent protection (0 -4.1A adjustable, default 4.1A) Output over power protection (0 -50W adjustable, default 50W) Over temperature protection (80-110℃ adjustable, default 110℃) Timeout protection (adjustable from 0 -100h, closed by default) Over-capacity protection (0 -60Ah adjustable, closed by default)
Working frequency: 180KHZ
Note: After the product triggers the protection mechanism, the output is automatically turned off, the LCD screen displays the protection code, press any key to exit the protection interface.
Instructions:
Switching display parameters——In the normal interface, short press SW to switch the lower display of the display. The display content is switched between current A, power W, capacity Ah, and time h. Long press the SW button to switch the upper display of the screen, and the display content is switched between input voltage IN and output voltage OUT.
Set the output voltage value-short press the U/I button in the normal interface to enter the set voltage constant current interface. You can see that a certain digit of the set output voltage value is flickering. Turn the rotary encoder left and right to adjust it to increase or decrease. Short press the rotary encoder to select which bit of the output voltage is set. After the setting is completed, short press the U/I button twice to return to the normal interface. Or it will automatically return to the normal interface after 10s of stopping operation.
Set the constant current value (that is, the large current value that the module allows to output)-short press the U/I button in the normal interface to enter the setting voltage constant current interface. Shortly press the U/I button again to switch to the constant current value setting. You can see that a certain digit of the constant current value is flashing. Turn the rotary encoder left and right to adjust the increase and decrease. Short press the rotary encoder to select which bit of the constant current value is set. After the setting is completed, short press the U/I button to exit the setting voltage constant current interface and return to the normal interface. Or it will automatically return to the normal interface after 10s of stopping operation.
Set the default on/off state of the module when it is powered on-press and hold the U/I button in the normal interface to enter the parameter setting interface. It can be seen that OPEN OFF or OPEN ON is displayed. OPEN OFF means that the output is turned off by default after power-on, and OPEN ON means that the output is turned on by default after power-on. Long press the rotary encoder to switch between two states. After setting, long press the U/I button to return to the normal interface.
Set the protection parameter on state and threshold value——In the normal interface, long press the U/I button to enter the parameter setting interface. Short press the SW button until the protection parameter you want to set appears. LUP——undervoltage protection threshold; OUP——overvoltage protection threshold; OCP——overcurrent protection threshold; OPP——overpower protection threshold; OAP——overcapacity protection threshold; OHP overtime protection threshold; OTP——overtemperature Protection threshold. Short press the rotary encoder to select which bit of the protection parameter you want to set. Long press the rotary encoder to set whether the protection parameters are turned on or off (Only timeout protection and over-capacity protection can be set on/off, and other protection parameters are turned on by default.). Rotate the encoder left and right to make the parameter bigger and smaller. After setting, long press the U/I button to return to the normal interface.
Calibrate the voltage and current-in the normal interface, long press the U/I button to enter the parameter setting interface. Short press the SW button until the parameter interface with CAL appears. The with the CAL+IN+V symbol is the calibration input voltage interface; the with the CAL+OUT+V symbol is the calibration output voltage interface; the with the CAL+OUT+A symbol is the calibration output current interface. Rotate the encoder left and right to adjust the parameter size. After the adjustment is completed, long press the rotary encoder to confirm the adjustment is completed, and the parameter value is not flashing at this time. Long press the U/I button to return to the normal interface.
Note: In order to ensure the accuracy of calibration, calibration voltage-voltage above 12V can start calibration; calibration current-current above 1A can start calibration.
Precautions:
Module input IN- is prohibited from short-circuiting with output OUT-, otherwise the constant current function will fail.
Please ensure that the power of the power supply is always greater than the power required by the output load!
If the module wants to output at full load, the input voltage must be above 8V. When the input voltage is 5V, the output power is about 15W. The module current value is 4A larger, provided that it is limited by the large output power, for example, when the output is 17V, the current should not be greater than 2A.
When this module is used at more than 3A, 35W, please strengthen heat dissipation! ! !
The module has an input under-voltage protection function, the default is about 4.8V (can be set), below this value, it will automatically cut off the output (note that the voltage at the module port is lower than the under-voltage protection threshold, when the input current is relatively large , Don’t ignore the voltage divider on the input wire).
Package list:
1*buck boost converter
notes:
1. The actual color of the product may be slightly different from the website picture due to various factors such as the brightness of the display and the brightness of the light.
2. Please allow the data to have a slight deviation from manual measurement.
notes:
1. Due to manual measurement, please allow an error of 1-3mm.
2. Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks!
No-delivery refund
