ขาย XL4015 5A High power 75W DC-DC adjustable step-down module+LED Voltmeter Power supply module ราคาที่ดีที่สุด

Module Highlights: - 5A power high-efficiency step-down low ripple! - with power indicator light! - onboard voltage meter, voltage meter can self-calibration, will never exist without accurate voltmeter problem! ! Module performance and features: - with power indicator light - with a voltmeter voltmeter can display and self-calibration. It uses a more advanced microprocessor voltage, voltage meter error of 0.05V , range 0 ~ 40V . (Note: To ensure the accuracy of the voltmeter, please ensure that the input voltage is 4.5V or more) - touch of a button to switch measuring input or output voltage, and has a light show which is being measured voltages, and save the settings, even if the power is turned on again. - voltmeter can be turned off when not needed, touch the left button can be easily achieved. - with a terminal block, no iron can also be easy to use, and retention wire connection points. - Input voltage 4.0 ~ 3 . 8 V . ( Input voltage must be higher than the output voltage 1.5v above ) - adjustable output voltage range of 1.25V ~ 3 5 V continuously adjustable. ( Input voltage must be higher than the output voltage of 1.5V) - output current up . 5A , recommended 4.5A use inside. - output power up to 75W . - high conversion efficiency, up to 96% (efficiency of input and output voltage, current, pressure related) - Load Regulation S ( the I ) 0.8% , voltage regulation S ( U ) 0.8% - overheating protection and short circuit protection - size . 6 0 * 3 . 7 * 18mm - Weight 28 G Onboard voltage meter self-calibration method: - Onboard voltage table shows the output voltage, long press on the right button 2 seconds after the release, and the output voltage voltmeter indicator " OUT " synchronous flashing, this time into the output voltage adjustment mode; Similarly, the voltmeter shows when the input voltage, long press on the right button 2 seconds after the release, voltmeter and input voltage indicator " the IN " synchronous flashing, this time into the input voltage adjustment mode; - Touch the button on the right side, the voltage increases a unit, touch the button on the left side, a voltage reduction unit; since the voltage value of a unit is less than 0.1V , so you need to continuously press 1-5 times in order to see the voltmeter change the 0.1V , specifically continuous button several times depending on the voltage value currently displayed, the current display higher the voltage, the fewer the number of press; - After the voltage adjustment is complete, press the right side button 2 seconds after the release, this time to exit voltage calibration mode, all parameters set to automatically power-down save. NOTE: You only need to adjust the way this one can obtain accurate calibration voltage value across the entire voltage range, this function is more accurate to meet your requirements and design, ease of use. Applications: This module can be applied in the field of blood pressure is higher than the output voltage of the input voltage, such as batteries, power transformers, DIY adjustable power supply, 24V car T of the power supply, industrial equipment buck, 12V turn 3.3V , 12V turn 5V , 24V turn 5V , 24V switch 12V , 36V switch 24V and so on.