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:
Jun. 30, 2015
Filed:
Sep. 11, 2012
Chen-wei Ku, Taoyuan County, TW;
Lei-ming Lee, Taoyuan County, TW;
Ho Huang, Taoyuan County, TW;
DELTA ELECTRONICS, INC., , TW;
Abstract
A hybrid DC-to-AC conversion system includes a first DC input voltage, a second DC input voltage, a power conversion apparatus, and a comparison unit. The power conversion apparatus is connected in parallel to the first DC input voltage and the second DC input voltage to convert the first DC input voltage or the second DC input voltage into an AC output voltage. The comparison unit receives the AC output voltage and an external reference voltage. The comparison unit outputs a control signal to make the first DC input voltage supply a load when an absolute value of the AC output voltage is less than or equal to the external reference voltage, whereas the comparison unit outputs the control signal to make the second DC input voltage supply the load when the absolute value of the AC output voltage is greater than the external reference voltage.