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. 02, 1996
Filed:
Sep. 12, 1994
Applicant:
Inventors:
Donald L Watrous, Clifton Park, NY (US);
Victor A Temple, Clifton Park, NY (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ; H02H / ;
U.S. Cl.
CPC ...
327310 ; 327110 ; 327427 ; 327434 ; 361110 ;
Abstract
An active clamp circuit for controlling over-voltage, surge conditions in electrical circuits. The active clamp includes a varistor which is switched into a circuit by a high power switch upon the detection of a surge condition. The use of a MOS Controlled Thyristor ('MCT') as a means for the switching the varistor permits the circuit to withstand a high di/dt and surge current while maintaining both on and off gated control of the switch.