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:
Aug. 24, 1999
Filed:
Nov. 03, 1997
Applicant:
Inventor:
Anne J Annema, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323313 ; 323315 ;
Abstract
A band-gap reference voltage source comprises a first current branch including a first field effect transistor (T1); a second current branch including a second field effect transistor (T2); a reference resistor (RRF) arranged in series with one of the field effect transistors (T1, T2); and a voltage level shifter for coupling the backgates (BG1, BG2) of the field effect transistors (T1, T2) to the gates (G1, G2) of the field effect transistors (T1, T2), which reduces the gate-source voltages of the field effect transistors (T1, T2). As a result of this, the output voltage supplied by the band-gap reference voltage source can be lower than customary.