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:
Jul. 29, 2003
Filed:
Feb. 08, 2002
Applicant:
Inventor:
Gabe C. Gavrila, Colorado Springs, CO (US);
Assignee:
Toko, Inc., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/10 ;
U.S. Cl.
CPC ...
G05F 1/10 ;
Abstract
A circuit for parallel sensing of the current in a power FET includes a sense FET and a current conveyor circuit employing exclusively FET devices. All FET devices may be MOSFET devices or JFET devices. The sense FET and the power FET have their gate terminals connected together and their source terminals connected together. The current conveyor circuit includes a current mirror. One or more additional current mirrors may be employed. One or more of the additional current mirrors may be cascoded or have other circuit techniques applied to them, in order to enhance their performance, hence overall circuit current sense performance.