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:
Jan. 14, 2003
Filed:
Aug. 31, 2000
Applicant:
Inventors:
Hans Johansson, Bergshamra, SE;
Ulf Lundin, Stockholm, SE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 ; H02H 3/26 ; H02H 5/00 ;
U.S. Cl.
CPC ...
H02H 3/00 ; H02H 3/26 ; H02H 5/00 ;
Abstract
To shorten the recovery time of a line driver ( ) after an overvoltage on its output terminal ( ), a current generating device ( ) senses a voltage difference between the output voltage of the line driver ( ) and its supply voltage (UB) plus a threshold voltage (UT′), and supplies a current (I) that is proportional to the sensed voltage difference up to a maximum current to the output ( ) of the line driver ( ) to raise its potential to thereby shorten its recovery time.