3A DC-DC Digital DisPlay LCD Step Down Power Supply Module

Description:

The voltage reducer module or buck module receives input in the range of 5 to 23 volts and can have an adjustable output of up to 16.5 volts with a current of 3 amps.

This 3 amp fixed voltage reducer module has a voltage and current display and the measurement accuracy of this module is high.

To calibrate this module, hold down the module's bottom button before connecting the power supply. The screen will flash. Release the button and in this case, the output is measured, which can have a percentage of error, for example, 4.98 or 5.02 volts, and there is no problem.

Application:
Power supply
Motor driving

Features:
Input voltage: 5 ~ 23V, maximum 23V, recommend the use of internal 20V, input the anti-reverse. (Input voltage must be higher than the output voltage of 1V or more)
Adjustable output voltage range of 0V ~ 16.5V continuously adjustable, automatically saves the last set voltage.
Peak current 3A, recommended in 2A. Accuracy of 1%, 0.01 minimum display unit is A, fever greater than 2A, please think of ways to solve the heat problem yourself.
High conversion efficiency, up to 95% (efficiency of input and output voltage, current, pressure-related)
Load Regulation S (I) ≤0.8%, voltage regulation S (U) ≤0.8%
Size 62mm * 44mm 18mm *
Weight 45g

The calibration method:
The absence of power, hold down the left button access to power, the display starts flashing, release the button, the output terminal voltage measured with a multimeter, press the left button transferred to multimeter display closest to 5V when, for example: 4.98 to 5.02 are OK, adjustable power supply of the LCD display can not control how much , after adjusting off the power, then access to power, that calibration is complete. Error can be calibrated in less than 0.04V, if the error is larger, you can try again once school.