USB Circuits

Power Supplies, USB Circuits

12Volt from USB port

12 volt DC Power Supply from USB port The circuit given below infact is a 5 volt to 12 volt converter. It uses the 5 Volts from USB port and converts it to 12 volts DC with the help of IC LT1618. Description : Using this circuit we can convert 5V DC from the computer […]

Audio Circuits, USB Circuits

USB sound card

Description. Designing and building a USB sound card is no longer a head ache because we have got the PCM 2702 integrated circuit from Texas Instruments. The PCM2702 is an integrated 16 bit digital to analog converter that has two digital to analog output channels. The integrated interface controller of PCM2702 is compliant to the

Home Circuits, USB Circuits

USB LED Lamp Circuit

USB LED Lamp Circuit Description Here is a simple USB powered lamp that can be used to light your desktop during power failures. The circuit operates from the 5 Volt available from the USB port. The 5V from the USB port is passed through current limiting resistor R2 and transistor Q1. The base of transistor

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