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:
Dec. 08, 2009
Filed:
Dec. 27, 2005
Hiroyuki Kotani, Osaka, JP;
Michio Taniguchi, Osaka, JP;
Tatsuya Ikenari, Osaka, JP;
Hirotaka Takei, Osaka, JP;
Hiroyuki Kotani, Osaka, JP;
Michio Taniguchi, Osaka, JP;
Tatsuya Ikenari, Osaka, JP;
Hirotaka Takei, Osaka, JP;
Daihen Corporation, Osaka, JP;
Abstract
A high frequency power supply includes a DC source unit () that outputs a DC voltage Vdc having an output level corresponding to a target voltage, an oscillation unit () that outputs a high frequency voltage signal having an output level corresponding to a target power, an amplification unit () that includes a plurality of amplifying elements, and amplifies and outputs the high frequency voltage signal output by the oscillation unit () utilizing the DC voltage output by the DC source unit (), an output voltage detection unit () that detects an amplitude of the voltage between the amplified-side terminals of the amplifying elements in the amplification unit (), or an amplitude of a voltage that is proportional to the amplitude of the voltage between the amplified-side terminals, and a target voltage decision unit () that decides a target value of the DC source voltage Vdc to be outputted by the DC source unit () based on the detection result from the output voltage detection unit ().