DC7-80V To 1.4-79V 20A 300W High Power DC DC Boost Buck Converter CC CV Power Supply Module MPPT Adjustable Voltage Regulator

Description:




1. Use high-quality materials, durable




2. All adopt screwdriver free potentiometers, which can be adjusted manually




3. The chip enhances heat dissipation, reliability, stability and high power




4. MPPT regulation voltage real-time display, clear at a glance




5. Wide range of use, solar charging, lithium battery charging, LED




Constant current drive, regulated power supply








Parameters:




Input voltage range: DC7-80V




Output voltage range: DC1.4-79V




Voltage display range: 1.40-80.00V (accuracy+0.1V or so)




Output current regulation range: 0-20A




Current display range: 0.00A-20.00A (accuracy+0.03A or so)




Adjustment knob: MPPT voltage regulation, output voltage regulation, output




Current limiting regulation




MPPT function: Yes




Backflow prevention: the battery does not burn when it is poured backward, and the sun is insufficient and there is no charging current,




There will be 0.5-40mA reverse current. It is recommended to connect the diode during charging.




Constant current (current limiting): Yes




Over power protection: 300W, over power will turn off the output, and 0PP will be displayed




Size: 108x64x48mm






Charging steps of solar cell:




1. Measure the no-load voltage of the solar panel (sufficient sunlight) and calculate the MPPT voltage=




0.75 * no-load voltage, or directly refer to the Vmp parameter value of the manufacturer's battery panel.




Note that the positive and negative electrodes shall not be connected reversely.






2. The solar panel access module supplies power, switches to the MPPT voltage display interface




Section MPPT potentiometer, adjust the value to Vmp voltage.






3. Rotate the CV potentiometer to adjust the output voltage (the size is the floating charge of the charged pool




Press).






4. Short circuit both ends of the positive and negative output poles, rotate CC potentiometer, and adjust the limiting current (large




Small is the allowable charging current of the charged cell).




If the power of the solar panel is too low, the MPPT light will be on in case of short circuit




Hold the input constant voltage, the output current will be limited, and the current can only be adjusted downward, MPPT




The current value seen when the lamp is off is meaningful.




It is recommended to adjust the current when sunlight is sufficient or constant voltage source is used as input.






5. Connect the battery for charging (note that the positive and negative electrodes should not be reversed). MPPT can be adjusted properly




Potentiometer, so that the module is always at the maximum power point output.




It is recommended to connect the diode to completely prevent reverse flow.








Notes and reminders:




1. The input positive and negative poles cannot be reversed, or they will be burned;




2. When the output terminal is connected to the battery, the positive and negative electrodes shall not be connected reversely, or they will be burned.




3. The maximum output current of 20A is only limited to when the difference between input voltage and output voltage is small,




And the output power shall not exceed 300W.




The greater the difference between input and output voltage, the lower the conversion efficiency and the more serious the heating.




If the heating is too serious, please reduce the power for use, or add 5V fan (reserved




Interface, fan current is less than 300mA).




4. The MPPT voltage is generally set as 0.75 times of the open circuit voltage of the solar panel




See the nameplate or consult the solar panel manufacturer for Vmp voltage




The value is the MPPT voltage we want to set. The display screen can display the set voltage,




The adjustment is clear and convenient.




5. Output current limiting (CC) value is generally the allowable charging current and current of rechargeable battery




The setting method of is: short-circuit the output terminal directly with a wire, and look at the current display value




Adjust CC potentiometer, and the displayed value is the current limiting value (maximum output current value).








Package included:




1 x DC7-80V to 1.4-79V 20A 300W High Power DC DC Boost Buck Converter CC CV Power Supply Module MPPT Adjustable Voltage Regulator