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:
Jan. 17, 2012
Filed:
Mar. 22, 2007
Eiji Takegami, Tokyo, JP;
Kazushi Watanabe, Tokyo, JP;
Satoshi Tomioka, Tokyo, JP;
Kouji Higuchi, Tokyo, JP;
Kazushi Nakano, Tokyo, JP;
Tatsuyoshi Kajikawa, Tokyo, JP;
Eiji Takegami, Tokyo, JP;
Kazushi Watanabe, Tokyo, JP;
Satoshi Tomioka, Tokyo, JP;
Kouji Higuchi, Tokyo, JP;
Kazushi Nakano, Tokyo, JP;
Tatsuyoshi Kajikawa, Tokyo, JP;
TDK-Lameda Corporation, Tokyo, JP;
Abstract
There is provided a digital controller which can generate no oscillation even if sensing a load side and enables control of supplying a desired voltage to the load. In an power amplifier which supplies an output voltage vto the load connected via a load connecting line, a load voltage vand the output voltage vare periodically sampled to calculate a manipulating variable ξfrom the output voltage v, the load voltage vand an arbitrary target value r. Based on the manipulating variable ξcalculated, a control signal is output to the power amplifier. As a result, when connecting an LC filter with a load deviceof the power amplifier intended for a control target and besides the load connecting line is long, a robust digital controller without generating oscillation even if sensing the load side is performed can be realized.