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:
May. 09, 2017
Filed:
Sep. 11, 2014
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Hidetomo Ohashi, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kawasaki-shi, JP;
Abstract
A switching power supply apparatus includes: a dead time circuit that receives an output control signal and generates dead time signal to specify a time width when both first and second switching elements are turned OFF; an output signal generation circuit that generates first and second output signals which specify the ON time of the first and second switching elements respectively in accordance with the output control signal and the dead time signal; and a dead time adjustment circuit that adjusts the turn ON timings of the first and second switching elements by changing the time width of the dead time signal in accordance with the change of voltage of the DC input power or the change of the output voltage of the capacitor.