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Simple Programmer AVR Your USB Circuit Diagram

Green USB switch

ChipHeadBang – design for an USB to Serial converter with ICSP header

12V From USB Port 5V to 12V Converter Circuit Diagram

Upgrade Your USB Hub Circuit Diagram

Programmer AVR Your USB Circuit Diagram

USB 5V to 12V DC DC Step Up Converter by LT1618

USB sound card made from a broken USB headphones

USB Battery Charger Circuit Diagram

USB Power Booster Circuits Diagram

USB Soundcard Circuit with PCM2702

Pocket USB powered power supply for the hobbyist

USB Switch Schematic Circuit

USB to phone battery charger circuit

Power Supply for USB Devices