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:
Apr. 16, 2002
Filed:
Jun. 21, 1999
Petr Kadanka, Roznov pod Radhostem, CS;
Antonin Rozsypal, Roznov pod Radhostem, CS;
Semiconductor Components Industries LLC, Phoenix, AZ (US);
Abstract
For use in a regulator, a driver ( ) has a first transistor pair ( ) for alternatively pulling a drive line (OUT, ) to magnitudes in a limited magnitude range between first and second reference lines ( ) depending on an input signal (IN, ). Parallel to the first pair ( ), a second transistor pair ( ) alternatively pulls the drive line (OUT, ) substantially to the reference lines ( ). The second pair ( ) is controlled by a comparator arrangement ( ) comparing the input signal to first (REF ) and second (REF ) reference signals and activating the second pair ( ) substantially only when the signal (OUT) on the drive line ( ) driven by the first pair reaches a magnitude limit. The transistors ( ) of the first pair are arranged as emitter followers and the transistors ( ) of the second pair are arranged as switched current sources.