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:
Jul. 14, 2015
Filed:
May. 25, 2012
Wen-yin Tsai, Taoyuan Hsien, TW;
Jen-chung Liao, Taoyuan Hsien, TW;
Po-tai Cheng, Hsinchu, TW;
Yu-hsing Chen, Hsinchu, TW;
Wen-Yin Tsai, Taoyuan Hsien, TW;
Jen-Chung Liao, Taoyuan Hsien, TW;
Po-Tai Cheng, Hsinchu, TW;
Yu-Hsing Chen, Hsinchu, TW;
DELTA ELECTRONICS, INC., Taoyuan Hsien, TW;
NATIONAL TSING HUA UNIVERSITY, Hsinchu, TW;
Abstract
Disclosed is an uninterruptible power supply, including a rectifier for generating a DC voltage; an energy storage unit; an inverter for converting the DC voltage into a three-phase modulating voltage; a filter; a bypass switch circuit for selectively outputting a three-phase AC voltage or the three-phase modulating voltage as a three-phase load voltage; and a control circuit for controlling the operation of the uninterruptible power supply. The control circuit may use a flux compensation block with different operating modes to adjust the three-phase load voltage at the startup phase of a second inductive load and at the stable phase of the second inductive load, thereby compensating or correcting the flux of the second inductive load to prevent the flux distribution of the second inductive load from being saturated.