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. 15, 2016
Filed:
Sep. 14, 2013
Lite-on Electronics (Guangzhou) Limited, Guangzhou, CN;
Lite-on Technology Corporation, Taipei, TW;
Liang-Chun Lin, New Taipei, TW;
Te-Yu Chou, Taipei, TW;
Ming-Wang Cheng, Taoyuan County, TW;
Wei-Lieh Lai, New Taipei, TW;
LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Guangzhou, CN;
LITE-ON TECHNOLOGY CORPORATION, Taipei, TW;
Abstract
A direct current (dc) uninterruptible power system is disclosed. The dc-based uninterruptible power system includes a multiplexer, a battery unit, a linear regulator, a switch-transistor, a voltage comparator and micro controller. The multiplexer receives a first control signal, a first reference voltage and a second reference voltage and outputs a control voltage according to the first control signal. The switch-transistor has a body diode and the body diode has a conduction voltage. When the dc-based uninterruptible power system is non-discharge mode, the switch-transistor is switched-off and the linear regulator receives the first reference voltage, so that the subtraction of the output voltage and the power-supply voltage is smaller than the conduction voltage to cutoff the body diode.