DocumentCode :
3447928
Title :
A Wireless Battery-less Computer Mouse with Super Capacitor Energy Buffer
Author :
Hu, A.P. ; Kwan, I.L.W. ; Tan, C. ; Li, Y.
Author_Institution :
Univ. of Auckland, Auckland
fYear :
2007
fDate :
23-25 May 2007
Firstpage :
2024
Lastpage :
2029
Abstract :
This paper proposes a novel wireless computer mouse power supply system which runs off a standard USB port and eliminates the use of batteries completely. The system uses a soft switched current-fed push-pull converter for DC to AC conversion. The AC current, which flows through a disk coil embedded into a mouse-pad, provides a time varying magnetic field that transfer power to a power pick-up coil located within the mouse, through magnetic induction. This power, which was tuned-up and regulated by an advanced voltage control method-dynamic detuning control, has proven to be able to provide sufficient power to drive a wireless mouse. Furthermore, an energy buffer system is added which backs up and allocates the induced power to allow mouse operation and energy storage to occur in a coordinated way. This system allows the mouse to sustain in operation even when it is moved away from the mouse-pad. A minimum duration of 2 minutes was achieved when the mouse was constantly active.
Keywords :
DC-AC power convertors; buffer circuits; electromagnetic induction; magnetic fields; mouse controllers (computers); power supply circuits; supercapacitors; time-varying networks; voltage control; DC-AC conversion; USB port; current-fed push-pull converter; disk coil; dynamic detuning control; magnetic induction; mouse pad; power pick-up coil; power supply system; super capacitor energy buffer; time varying magnetic field; voltage control method; wireless battery-less computer mouse; Analog-digital conversion; Batteries; Capacitors; Coils; Magnetic fields; Mice; Power supplies; Switching converters; Universal Serial Bus; Voltage control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics and Applications, 2007. ICIEA 2007. 2nd IEEE Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-0737-8
Electronic_ISBN :
978-1-4244-0737-8
Type :
conf
DOI :
10.1109/ICIEA.2007.4318765
Filename :
4318765
Link To Document :
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