Network Power Sharing Device: Power Sharing Via USB to Power Port with Output Voltage/Current 17v-19v/4A-

Oludele Awodele, Oghenerukevwe Onoruvie, Sharon Okoruwa, Victor Dibia
InSITE 2008  •  Volume 8  •  2008
The ongoing migration of mobile lifestyles and the increasing capabilities of portable systems will continue to drive demand for more flexible and portable battery charging systems (Brown, 2006). The use of computers has been limited due to lack of constant availability of power -issues such as data loss, transaction breakages, data compromise have become major challenges in areas (especially third world countries) where power supply is a problem. Thus there is a need to provide a means of power sharing through USB for computers to share power between two systems (with special emphasis on laptops). Related works/ research has shown that the power sharing between a computer system has only been possible with smaller devices like iPod, since the USB port gives 500mA/ +5V maximum. This paper describes a device that draws similar voltage and current as the iPod for a destination system after an amplification operation has been carried out on the supplied voltage and power. The power being transferred is initiated by the software driver on detection with destination voltage and current 18V-19V/4.5A with female connector. After construction it will be available to notebook computers system specification and very useful in emergencies and available to all due to its ease of use.
Network power sharing device (NPSD), DC-DC step-up voltage/current regulator, battery sensing, constant voltage supply, oscillator, driver, female power connector
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