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:
Apr. 08, 2014
Filed:
Oct. 26, 2009
Hiroyuki Yoshino, Matsumoto, JP;
Nobuaki Azami, Matsumoto, JP;
Shinichi Miyazaki, Suwa, JP;
Kunio Tabata, Shiojiri, JP;
Atsushi Oshima, Shiojiri, JP;
Noritaka Ide, Shiojiri, JP;
Hiroyuki Yoshino, Matsumoto, JP;
Nobuaki Azami, Matsumoto, JP;
Shinichi Miyazaki, Suwa, JP;
Kunio Tabata, Shiojiri, JP;
Atsushi Oshima, Shiojiri, JP;
Noritaka Ide, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An electric load driving circuit for driving an electric load having a capacity component includes a plurality of power sources generating different voltages, capacitors provided parallel to the plurality of power sources, a switch control unit that switches connections between the capacitors and the electric load and thereby switching a voltage applied to the electric load, discharge paths that enable discharging electric charge stored in the capacitor, and a discharge control unit that controls a quantity of electric charge discharged from the discharge paths.