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:
Mar. 31, 1998
Filed:
Aug. 26, 1996
Applicant:
Inventors:
Ali Tasdighi, San Jose, CA (US);
Phong Nguyen, Pleasanton, CA (US);
Assignee:
TelCom Semiconductor, Inc., Mountain View, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G05F / ; H02H / ;
U.S. Cl.
CPC ...
323312 ; 361 18 ;
Abstract
A short-circuit protection circuit senses the output current of an output transistor to provide a control signal to a control transistor. The control transistor, in response to the control signal, varies an input voltage to an internal stage of an amplifier driving the output transistor, so as to cause the output transistor is switched off. A hysteresis resistor is coupled in series with an input terminal of the short circuit protection circuit, so as to prevent transient noise from switching off said output transistor.