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:
Oct. 29, 2002
Filed:
May. 04, 2001
Petr Kadanka, Valasska Bystrice, CZ;
Semiconductor Components Industries LLC, Phoenix, AZ (US);
Abstract
A band gap reference ( ) provides low noise operation utilizing capacitor ( ) to produce a low pass filter operating with high impedance node ( ). Increased speed is realized using feedback signals at nodes ( ) and ( ) to control differential transistor pair ( ). A first current feedback stage using transistors ( and ) and a second current feedback stage using transistors ( ) is used to control current mirror stages which set the charge and discharge current at node ( ). A first current mirror stage using transistors ( ) comprise the current sink used to discharge capacitor ( ) at node ( ) and a second current mirror stage using transistors ( ) comprise the current source used to charge capacitor ( ) at node ( ).