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. 17, 2012
Filed:
Sep. 03, 2009
Go Takata, Hyogo, JP;
Shinichiro Kataoka, Osaka, JP;
Yasunori Yamamoto, Osaka, JP;
Tsukasa Kawahara, Kyoto, JP;
Ryuji Ueda, Osaka, JP;
Daisuke Itou, Osaka, JP;
Go Takata, Hyogo, JP;
Shinichiro Kataoka, Osaka, JP;
Yasunori Yamamoto, Osaka, JP;
Tsukasa Kawahara, Kyoto, JP;
Ryuji Ueda, Osaka, JP;
Daisuke Itou, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The load driving apparatus according to the present invention includes a load current setting signal generating section, a load current generating section, a reference voltage generating section and a drive voltage generating section. The load current setting signal generating section generates a desired load current setting signal. The load current generating section generates a load current based on the load current setting signal to drive the load. The reference voltage generating section generates a reference voltage based on the load current setting signal. The drive voltage generating section generates a drive voltage, supplies the drive voltage to the load, generates a between-both-terminals voltage between both terminals of the load current generating section based on the drive voltage and controls the drive voltage so that the difference between the between-both-terminals voltage and the reference voltage becomes small.