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:
Aug. 28, 2012
Filed:
Jan. 20, 2006
Shinichi Sakai, Nara, JP;
Nobuo Shirokawa, Nara, JP;
Haruo Suenaga, Osaka, JP;
Hideaki Moriya, Nara, JP;
Manabu Kinoshita, Nara, JP;
Shinichi Sakai, Nara, JP;
Nobuo Shirokawa, Nara, JP;
Haruo Suenaga, Osaka, JP;
Hideaki Moriya, Nara, JP;
Manabu Kinoshita, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A magnetron driving power source can detect the abnormal condition during no-load running with low cost and space saving. The magnetron driving power source includes a high voltage transformer () for supplying a high voltage to a magnetron (), a switching part () for driving the high voltage transformer at a high frequency, a first control part () for giving a drive signal to the switching part, a second control part () for issuing an output command to the first control part, and a third control part () for correcting the output command in accordance with a decrease in the oscillation threshold value of the magnetron, wherein the first control part () performs a power down control in accordance with a signal from the third control part. Accordingly, the magnetron driving power source of the invention can treat the signal on the control side of the inverter and detect the abnormal condition during no-load running with low cost and space saving.