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:
Feb. 15, 1994
Filed:
Jan. 07, 1991
Applicant:
Inventors:
Assignees:
Siemens Automotive S.A., Toulouse Cedex, FR;
SGS-Thomson Microelectronics, Agrate Brianza, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
3241 / ; 3241 / ;
Abstract
A circuit for measuring current in a power MOS transistor (M0) comprises second (M1) and third (M2) transistors in series of the same type and same technology as, but having a smaller surface than, the power transistor and arranged in parallel on the latter. The two series transistors have their gates connected to the gate of the power transistor. The current in transistor (M2) which is connected to the reference electrode of the power transistor is measured.