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:
Apr. 01, 2025
Filed:
Dec. 30, 2022
Frontgrade Technologies Inc., Arlington, VA (US);
Shinichi Hisano, Colorado Springs, CO (US);
Frontgrade Technologies Inc., Arlington, VA (US);
Abstract
Systems, apparatuses, and methods that compensate for total ionizing doses and intrinsic base currents in transistors of a bandgap reference circuit are provided. A compensation circuit can include a compensation transistor with a size and one or more bias conditions that are based at least in part on a respective bipolar transistor of a bandgap reference circuit. The compensation circuit can include an operational amplifier that is configured to: (i) set a base-collector voltage of the compensation transistor to zero; and (ii) provide a compensation base current to a base terminal of the compensation transistor that is representative of at least a radiation-induced current transistor or an intrinsic base current for the respective bipolar transistor. A bandgap reference circuit can be augmented with one or more compensation circuits to accommodate for a total ionizing dose and/or an intrinsic base current for one or more transistors of the bandgap reference circuit.