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. 27, 2009
Filed:
Jun. 02, 2006
David Cave, Tempe, AZ (US);
David Cave, Tempe, AZ (US);
Dolpan Audio, LLC, Dover, DE (US);
Abstract
A voltage bandgap circuit comprises a first transistor and a second transistor connected in a voltage bandgap circuit arrangement, the area of the first transistor is selected to be a predetermined multiple of the area of the second transistor; a differential input amplifier has a first input coupled to the first transistor and a second input coupled to the second transistor; the amplifier has its output coupled to an output node. A first trimmable resistance network is coupled to say the bandgap circuit and is trimmed to adjust the output voltage of the bandgap circuit based upon a single temperature voltage measurement made across two of the terminals of each transistor.