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:
Sep. 06, 2005
Filed:
May. 28, 2003
Yasuhiro Okuma, Tokyo, JP;
Yasuhiro Okuma, Tokyo, JP;
Fuji Electric Co., Ltd., Kawasaki, JP;
Abstract
The electric power converter includes a series converter connected in series between an AC power supplyand a loadand having capacitorsas a power supply for the converter, switching devices, and diodes; and a parallel converter connected in parallel to the AC power supplyand having the capacitors, switching devicesand diodes. The series converter compensate the change in the voltage of the AC power supplyto feed a certain voltage to the load, and the parallel converter conducts charging and discharging operations to compensate the changes in the voltages of the capacitorsandcaused by the compensating operations of the series converter. The converter suppresses the change of the AC power supply voltage and feeds a certain voltage to the load at a high efficiency and low running costs.