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:
Dec. 06, 2005
Filed:
Jan. 24, 2005
Applicants:
Eckhard Brass, Unterhaching, DE;
Christian Grewing, Sollentuna, SE;
Jürgen Oehm, Ratingen, DE;
Inventors:
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F003/16 ;
U.S. Cl.
CPC ...
Abstract
A bandgap reference circuit is provided in which the conventional current loop with a current mirror for feeding a differential amplifier is replaced by a reference current that flows through a resistor connected to the bias input of the differential amplifier. In conjunction with a simpler construction and suitability for lower supply voltages, the circuit exhibits an improved supply voltage rejection PSRR over the prior art.