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:
Nov. 25, 2008
Filed:
May. 02, 2006
John M. Pigott, Phoenix, AZ (US);
Byron G. Bynum, Gilbert, AZ (US);
John M. Pigott, Phoenix, AZ (US);
Byron G. Bynum, Gilbert, AZ (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A reference circuit includes: (a) a first reference circuit having a reference signal and a ΔVloop; and (b) a modification circuit using a first voltage to change a first current in the ΔVloop of the first reference circuit. In one embodiment, the reference circuit is a voltage reference circuit. In some embodiments, the reference circuit can include a bandgap core circuit, which adds a Vand a multiplied ΔV, so that the output voltage of the reference circuit is a bandgap voltage. The reference circuit also can also include a modification circuit, which uses the output voltage (i.e. the reference signal) of the bandgap core circuit to change a current in the ΔVloop. The ΔVloop can be the portion of the circuit involved in generating the ΔVvoltage. Other embodiments are disclosed in this application.