A battery charger, or recharger, is a device used to put energy into a secondary cell or rechargeable battery by forcing an electric current through it.

The charging protocol depends on the size and type of the battery being charged. Some battery types have high tolerance for overcharging and can be recharged by connection to a constant voltage source or a constant current source; simple chargers of this type require manual disconnection at the end of the charge cycle, or may have a timer to cut off charging current at a fixed time. Ot ....etc

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USB EXPLAINED: AN INTRODUCTION TO USB AND ITS FUTURE


USB HISTORY
The Universal Serial Bus (USB) was introduced to the world of PC computing to solve the growing problem of how
to connect peripherals to a PC. The world of desktop computers needed a way, not only to physically connect
devices, but also allow them to be identified and categorized to enable a simple ease of use and method of discovery.
Prior to USB, many people overloaded the use of their serial and parallel ports to supp ....etc

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USB Power Socket

T.K. Hareendran


Today, almost all computers contain logic blocks for implementing a USB port. A USB port, in practice, is capable of delivering more than 100 mA of continuous current at 5V to the peripherals that are connected to the bus. So a USB port can be used, without any trouble, for powering 5V DC operated tiny electronic gadgets. Nowadays, many handheld devices (for instance, portable reading lamps) utilise this facility of the USB port to recharge their built-in battery pack w ....etc

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A Linux Device Driver for USB to USB Direct Link Device

The first version of the Universal Serial Bus (USB) specification was released in January 1996. In April 2000, version 2.0 of the USB specification, which supports transfer rates up to 480 Mbps, was released. Because of its low cost, high data-transfer rate, ease of use, and flexibility, USB has gained wide acceptance in the computer industry. Today, many peripherals and devices connect to computers through USB interfaces. Currently, most general-purpose operating systems pro ....etc

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sir, pls do provide me with the pdf for USB TO USB DATA TRANSFER WITHOUT PC USING MICROCONTROLLER.
kindly provide me the same.
thanking you,
your's faithfully
mithun krishnan k v ....etc

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PRESENTED BY:
PRABHJOT SINGH



INTRODUCTION
Drawback of the cyber world is that it lacks realism

It is about time to make use of the nose in digital world.

Essentially there are 2 technologies for aroma generation.

1st Technology
Uses scent spectrum and digital file.

You can attach smells with your e-mails.

A cartridge that can create thousands of scents are used in the aroma generating devices.

Cartridges are required to be replaced regularly to maintain s ....etc

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to get information about the topic wireless usb full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-wireless-usb

http://seminarsprojects.net/Thread-wireless-usb--5674

http://seminarsprojects.net/Thread-wireless-usb--7194

http://seminarsprojects.net/Thread-wireless-usb--5304 ....etc

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Abstract

The USB specification (version 1.0) defines the power distribution requirements for selfpowered hubs (including hosts) and bus-powered hubs. This application report explains how the TPS2014 and TPS2015 power distribution switches provide the power switching and overcurrent protection needed to meet the USB requirements and how they are superior to other devices commonly used to accomplish the same functions.
Overcurrent protection devices such as fuses and PTC resistors (also called polyfuses or polyswitches) have slow trip ....etc

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to get information about the topicwireless usbrefer the page link bellow

http://seminarsprojects.net/Thread-wireless-usb-seminars-ppt-and-details?page=2

http://seminarsprojects.net/Thread-wireless-usb ....etc

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please help me to make an oscilloscope using avr with sample rate of more than 1000s/s . but i dont need very high rate. maybe 20ks/s is enough for me and the price is much more important.please help me
[email protected] ....etc

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