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. 18, 2015
Filed:
Sep. 06, 2012
Joshua Siegel, Austin, TX (US);
Khoi B. Mai, Austin, TX (US);
Joshua Siegel, Austin, TX (US);
Khoi B. Mai, Austin, TX (US);
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Abstract
A band gap reference circuit including a band gap reference generator having an output for providing a reference voltage and a startup circuit for controlling current provided to the band gap reference generator when activated. The startup circuit includes a turnoff circuit having an output to deactivate the startup circuit to not control current to the band gap reference generator based on a voltage of the output of the band gap reference generator. The turnoff circuit includes an inverter having a first transistor of a first conductivity type in series with a second transistor of a second conductivity type opposite the first conductivity type. The startup circuit includes a body bias circuit connected to a body of the first transistor to provide a voltage differential between the body of the first transistor and a source terminal of the first transistor.