The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2008
Filed:
May. 24, 2005
Sheng-feng Chen, Taipei Shien, TW;
Sheng-Feng Chen, Taipei Shien, TW;
Quanta Computer Inc., Tao Yuan Shien, TW;
Abstract
A power supply device providing required power to a loading device. The power supply device includes a battery, an adjustable power converter and a control circuit. The battery, having a current meter, selectively outputs required power to the loading device. The power converter receives and converts an AC voltage into a first DC voltage or a second DC voltage, further receives an adjusting signal. The power converter outputs the second DC voltage when the adjusting signal is enabled. The magnitude of the second DC voltage is lower than the output voltage of the battery. The control circuit is coupled to the battery and the power converter. When the power of the battery is gauged, the control circuit enables the adjusting signal for the power converter to output the second DC voltage, so that the battery discharges the loading device for the current meter to re-gauge the power of the battery.