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USB 2.0 expansion dock

 
Overview
I. The schematic diagram
mainly consists of five parts. The main controller is the FE1.1S-BSOP28BPTR USB conversion chip, with a 16-pin Type-C interface for the input. It can be changed to a Type-A port if needed; simply modify the corresponding network label.
For the interface indicator lights, you can choose to omit or retain only the LED0 indicator, depending on your needs. Each of the four LEDs corresponds to a specific expansion port, and the indicator lights up when the device is operating. The current limiting protection
circuit uses the Silergy SY6280AAAC chip, a classic and frequently used circuit. The output interface can be freely replaced with any model.
II. PCB Design:
As a hub, it needs to transmit a large number of signals, so the signal transmission lines need to be routed in differential pairs to ensure stable signal transmission.
The PCB layout is shown below. If possible, it is recommended to use a hot plate soldering machine. When hand-soldering, pay attention to the distance between components to avoid solder bridging.
This is a picture of the soldered component.
 
参考设计图片
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Update:2026-03-26 18:20:42

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