With Current USB Adjustable Buck-Boost Power Regulator Module 5V To 3.3V 9V 12V 18V 24V DPLItem NO.: MK00521

USB Adjustable Buck-Boost Power Regulator Module

Product Information:

Voltage and current display, voltage and current can be calibrated with accuracy - USB adjustable buck-boost power supply charging module 5V to 3.3V9V12V24V can be adjusted arbitrarily

This product is a 3-5W low-power USB conversion power module, which can only meet your low-power needs

As long as you have a mobile phone charger and a USB5V adapter, you can output an adjustable voltage from 1V to 24V with a power of 3W; you can use a USB male or microUSB as input, which is very convenient to use. The voltage regulator adopts a multi-turn precision long-handled potentiometer, which can be directly adjusted manually without a flat-blade screwdriver. With voltage and current.

Instructions For Use:

1. Button

Left "ON" key: short press - control the output terminal to turn on or off, in calibration mode, the voltage or current value is reduced by one unit; long press - long press for more than 3s to release, the digital tube is turned off, press any key The digital tube resumes display.

Right "SW" key: short press - switch between voltage, current and wheel display; long press - enter or exit the calibration mode, enter the voltage display interface to calibrate the voltage, enter the current display interface to calibrate the current;

2. Potentiometer knob

Rotate clockwise to increase the output voltage, and rotate counterclockwise to decrease the output voltage. The stepless conversion voltage range is 1.2-24V.

3. Indicator light

V——The indicator light is on, indicating that the current digital tube displays the voltage value, and the unit is V;

A——The indicator light is on, it means that the current value displayed by the digital tube is the current value, and the unit is A;

4. Input and output ports

Input terminal - left side, USB male, microUSB, pad three ways to choose as input, input range 3.5-12V;

Output terminal - on the right side, the blue 2P terminal is used as the output, and the output range is 1.2-24V.

5. Calibration method

Output voltage calibration - when the digital tube always displays the voltage, press and hold the "SW" key for more than 3 seconds to release, the digital tube flashes, short press the "SW" key, the voltage value increases by one unit, short press the "ON" key for the voltage value Decrease one unit. When the output voltage is low, you may have to press it several times to see the value change by 0.1V; long press the "SW" key for more than 3 seconds and release it to exit the calibration mode.

Output current calibration - when the digital tube always displays the current, press and hold the "SW" key for more than 3 seconds to release, the digital tube flashes, short press the "SW" key, the voltage value increases by one unit, short press the "ON" key for the voltage value Decrease one unit, you may have to press it several times to see the value change by 0.01A; long press the "SW" key for more than 3 seconds and release it to exit the calibration mode. . Note: The calibration is more accurate when the current is greater than 1A; the display error is large when the output current is less than 0.05A, and the display may not be displayed when the output current is less than 10-30mA.