Usb Wall Charger Schematic. The line power is full wave rectified then the result chopped at high frequency thru a transformer. A usb charger circuit ouputs a regulated 5v that can be used to power usb devices or even charge mobile phones and other devices.
The line power is full wave rectified then the result chopped at high frequency thru a transformer. They can be small because they are switchers. It s perfect for soldering onto a stripboard.
85 to 265vac input 5v 4 8a dual port usb charger reference design.
This is not limited to these usb charger supplies. A usb charger circuit ouputs a regulated 5v that can be used to power usb devices or even charge mobile phones and other devices. The much higher frequency allows for a much smaller transformer to handle the same power. This is not limited to these usb charger supplies.
