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. 01, 1997
Filed:
Jul. 13, 1995
Applicant:
Inventor:
PakriSwami Elango, Singapore, SG;
Assignee:
SGS-Thomson Microelectronics Pte Ltd., Singapore and Seoul, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 98 ; 363132 ;
Abstract
The present invention relates to a current sense device for a load arranged in a diagonal of a H-bridge comprising MOS transistors (M1, M2, M3, M4) and operating in class AB, characterized in that it includes sensor, independent from the H-bridge, for measuring the current flowing in the load. A current-voltage converter converts the current measured by said sensor into a voltage proportional to said current. The voltage is applied to a sense amplifier that determines the transconductance gain of a control amplifier of the transistors of the H-bridge.