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. 14, 1989
Filed:
Dec. 11, 1987
Kazuho Sakamoto, Kyoto, JP;
Takao Shitaya, Yamatokoriyama, JP;
Shigeru Kusunoki, Yamatokoriyama, JP;
Naoyoshi Maehara, Nara, JP;
Takashi Niwa, Nara, JP;
Takahiro Matsumoto, Nara, JP;
Daisuke Bessyo, Yamatokoriyama, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
A power feeding apparatus which is used in a high-frequency heater or the like, is further power-converted by a transformer after the power provided by the power supply such as commercial power supply or the like has been converted into the high-frequency power by a transducer including a semiconductor, feeds the converted power into the load having the unidirectional electrical current characteristics of magnetron or the like. The generating voltage is dropped so that the stable power may be fed without the corona discharge and the acr discharge to be caused, the insulating withstand voltage between the windings of the transformer, the pulling of the wirings, and the insulating withstand voltage may be reduced.