4 Four USB Port A5268 Step Down Power Supply Converter Board Module DC 12V 24V 40V to 5V 5A For MP3/MP4 Phone Car Equipment
Size: W37*L47*H18
The input voltage range is 7~40v, within which the output voltage is stable. As the voltage of some components is 40v, only 9~35v can be marked, leaving room.
The output voltage is between 5.08 and 5.18 V, which is similar to the power supply on the market, and can compensate the loss of data line. It can be said that there is no need to make an adjustable version. This voltage is very good. The voltage range of USB is 4.75 V ~ 5.25 V. Please don't exceed it to avoid damage. The tablet will adjust the voltage according to your requirements. This is hard to say. Generally, the tablet is 5.2~5.3v V.
A diode is added to the input, and it won't burn if it is connected in reverse. If it is found that it is not powered on, it will be powered on in reverse. But don't connect it to the output.
Wiring method: Connect the positive voltage of 7 to 38v to the input positive, and the negative voltage to the negative of the icon below. The four USB's will have a stable 5v voltage. You can use it by plugging your phone's data cable into the USB. The output is just for the convenience of those devices without USB cable. It is only for professionals to use. If you don't understand, you don't need to pay attention to this interface.
Built in apple identification resistance, the apple charging current is about 2.4a; Android phone is about 1a. Please use a quality data cable.
Near the terminal block, there is a diode ss54, which is anti reverse connection diode. Professionals can short-circuit it and change it to a safety tube, which can be used by themselves.
With apple identification resistance, 47k+56k, 2.7v. Samsung's S5 mobile phone is currently an incompatible WEI mobile phone.
