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:
May. 26, 2026
Filed:
Jun. 12, 2023
Nvidia Corporation, Santa Clara, CA (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
An integrated circuit includes a bandgap reference circuit configured to generate, from a digital chip supply voltage, a reference voltage and a proportional-to-absolute temperature (PTAT) voltage. A voltage-to-frequency (VTF) readout circuit to receive the reference voltage and the PTAT voltage as inputs. The VTF readout circuit includes sets of switched capacitors that operate as a voltage divider. The capacitors of the sets of switched capacitors are selectively charged by the PTAT voltage and generate a feedback voltage. A voltage-controlled oscillator (VCO) is driven by a difference between the feedback voltage and the reference voltage and generates a VCO clock. A clock generator generates a feedback clock based on the VCO clock. First switches of the sets of switched capacitors are controlled by the feedback clock.