USB charging without fear
Compact Solution Uses USB Power to Run a Device and Simultaneously Charge its Battery | Analog Devices
What's the hardware and software detect mechanism of the cellphone Micro USB devices attached and detached? - Electrical Engineering Stack Exchange
OSD335x Lesson 2: USB Circuitry - Octavo Systems
How to design the USB circuitry
How to design the USB circuitry
The USB to Serial CDC 232 Schematic Diagram | Download Scientific Diagram
USB Interface Signal Monitoring Circuit | Full Project Available
Power Supply For USB Devices Circuit Diagram
CN-0158 Reference Design | Digital Isolators | Arrow.com
DIY USB Condom Circuit
OSD335x Lesson 2: USB Circuitry - Octavo Systems
The Basics of USB Battery Charging | Maxim Integrated
arduino - USB Drive detection circuit - Electrical Engineering Stack Exchange
USB On-the-Go (OTG): Uses and Support | Maxim Integrated
Simple PIC USB Interface - Schematic | PyroElectro - News, Projects & Tutorials
implement USB device with Attiny85 | AVR Freaks
Schematics: USB | Details | Hackaday.io
AN15484 Reference Design | UART to USB Interface | Arrow.com
CN0419 Circuit Note | Analog Devices
Bablu Patel: USB Port Circuit Diagram and its problem in Desktop Motherboard
AN0046: USB Hardware Design Guidelines
How to design the USB circuitry
