Power-supply circuit operates from USB port - EDN
5 V PSU for USB Devices and Raspberry Pi
Power Supply Hub With Battery Charger, Quad-USB & Variable Outputs
SparkFun Breadboard Power Supply USB - 5V/3.3V - PRT-08376 - SparkFun Electronics
Simultaneous power supply from battery and USB - Electrical Engineering Stack Exchange
5v usb power supply circuit under Repository-circuits -27614- : Next.gr
arduino - Power selection circuit for USB or DC Jack - both at 5V - Electrical Engineering Stack Exchange
USB DC Power Supply from Cigar Lighter Socket
Power Supply | Introducing the Raspberry Pi Model B+ | Adafruit Learning System
Portable Supply Derives +5V and +3.3V Power from USB Port
USB Arduino Power Supply - CircuitLab
5V and -5V Dual Power Supply Circuit
Circuit diagram of the USB power adapter | Download Scientific Diagram
Power Supply Module DC 2.5V~5V to 5V 1A Battery Charging Circuit Module/ Power
USB power supply with LM2575 - Power Supply Circuits | Удлинитель
USB Extension With External Power Supply : 4 Steps (with Pictures) - Instructables
Power a circuit with power supply and USB port, my solution - Electrical Engineering Stack Exchange
USB POWER SUPPLY CIRCUIT - diagram, schematic, and image 02
AK-USBSUPPLY – 3.3V and 5V Power Supply From USB | Artekit Labs
12 Volts DC Power Supply from USB port
Ensemble II VHF RX Builders' Notes
Building a USB Charger Circuit - The Geek Pub
Power Supply For USB Devices Circuit Diagram
USB Based Triple Power Supply | Full Electronics Project
