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:
May. 25, 2010
Filed:
Jan. 16, 2006
Norio Fujii, Kyoto, JP;
Norio Fujii, Kyoto, JP;
Rohm Co., Ltd., , JP;
Abstract
Indirect detection of current using a current mirror circuit is performed with good accuracy, with a small sized circuit. In a current detection circuit, a current detection current mirror circuit includes an output current transistor which supplies an output current, and a current detection transistor which supplies a detection current proportional to the output current. A compensation current mirror circuit is connected to a current supply side of the current detection current mirror circuit, so as to make a collector voltage of the output current transistor and a collector voltage of the current detection transistor equal. A current detector detects the detection current, to indirectly detect the output current.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile