DC-DC 8A solar energy wind energy vehicle-mounted stabilized charging automatic buck-boost constant voltage constant current adjustable power supply module -70947

DC 5-30V to 1.25-30V Automatic Step UP/Down Converter Boost/Buck Voltage Regulator Module

Introduction to synchronous rectification technology:
Synchronous rectification is a new technology that uses a dedicated power MOSFET with very low on-resistance to replace the rectifier diode to reduce rectification losses. It can greatly increase the efficiency of the DC/DC converter and there is no dead zone voltage caused by the Schottky barrier voltage. Power MOSFETs are voltage-controlled devices that have a linear relationship in volt-ampere characteristics during turn-on. When using a power MOSFET as a rectifier, it is required that the gate voltage must be synchronized with the phase of the rectified voltage to complete the rectification function, so it is called synchronous rectification. The synchronous rectification technology greatly reduces the rectification loss at the output end of the switching power supply, thereby improving the conversion efficiency and reducing the heating of the power supply itself.

Parameters:
Module nature: non-isolated synchronous rectification automatic buck-boost module
Input voltage: DC5-30V
Input current: 8A (MAX) peak 10A (within 6A working for a long time)
Static working current: 4mA (error will occur when operating voltage is different)
Output voltage: 1.25-30V continuously adjustable
Output current: 10A (MAX) (for long time natural heat dissipation within 5A, please use derating when high voltage output, please use heat dissipation or derating for module temperature over 65 degrees)
Output constant current range: 0.2-10A
Working temperature: -40-+85 degrees
Working frequency: 150KHz
Conversion efficiency: typically 91%, up to 93%
Overcurrent protection: Yes
Short circuit protection: Yes (current limiting protection)
Over temperature protection: Yes (automatically reduce output voltage after over temperature)
Input reverse connection protection: none, (if necessary, please input the diode in the input)
Output anti-backflow: Yes, there is no need to add anti-reverse diodes for charging.
Wiring method: terminal output, (IN is input, OUT is output)
Module size: 60mm*53mm*22mm (length, width and height)

Application range:
This module can be applied to areas where the input voltage is relatively large and the output requirements are relatively stable. Such as:

1.12V battery (10-14V) regulated output 12V, power supply for 12V equipment, 24V battery stable 24V: can be used as vehicle power supply

2. Solar panel voltage regulation, the voltage fluctuation of the solar panel is relatively large, this module can regulate the output, supply power to the device or charge the battery.

3. Drive high-power LED lights, constant current drive, such as 12V battery drive 4 string LED lights, this time LED and battery voltage are not much different.


Application: LED drive, wind energy solar, car battery charging


Output current adjustment method:
1. Adjust the CV potentiometer and set the output voltage to the voltage you need according to your load requirements.
2. Set the CC potentiometer counterclockwise for about 30 turns (ie set the output current to the minimum), connect the LED, and adjust the CC potentiometer to the current you need. For battery charging, after the battery is discharged, it will be connected to the output and adjust the CC to the current you need. (Be sure to use the discharged battery when charging, because the battery is left in the battery.) More, the charging current is smaller.) Please do not use short circuit to adjust the current, the circuit structure of the module can not be adjusted by short circuit.