USB charger kit, also known as MP3/MP4 charger, input AC160-240V, 50/60Hz, rated output: DC 5V 250mA (label sticker is 500mA, if you want to output more current for a long time, please replace Q1 with 13003). MP3 and MP4 are popular in the country, but as a charger for daily use, it is directly connected with 220V high voltage, which has the characteristics of high failure rate and easy damage. Especially after buying those immature products, it is really hard to read. . Finally, entrusted by the school teacher, we contacted a mature mass-produced charger kit, and now the home of the circuit diagram is shared with the majority of electronic enthusiasts.
The following is a schematic diagram of the circuit drawn on the physical object: (There are a variety of component mounting methods on the circuit board. Please refer to the schematic and physical diagram for installation. Some component holes on the PCB should not be installed. Some components should be installed. On the component hole, please pay attention!)
Solder Series Centronic Connector
Solder Series Centronic Connector
Current Rating:5A
Dielectric Withstanding Voltage:1000V for one minute
Insulation Resistance:1000MΩ Min.(at 500V DC)
Contact Resistance:35mΩ Max.
Temperature:-55°C to +105°C
Solder Series Centronic Connector
ShenZhen Antenk Electronics Co,Ltd , https://www.pcbsocket.com