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. 04, 2025
Filed:
Oct. 25, 2023
Nuvoton Technology Corporation, Hsinchu, TW;
Chih Ming Li, Zhubei, TW;
Cheng-Tao Li, Zhubei, TW;
NUVOTON TECHNOLOGY CORPORATION, Hsinchu, TW;
Abstract
A referential voltage generating device includes a bandgap-voltage generating unit, a control-comparison unit, a difference current generating unit and a referential voltage generating unit. The bandgap-voltage generating unit generates a second proportional to absolute temperature (PTAT) current and a bandgap-voltage based on a first PTAT current and a complementary to an absolute temperature (CTAT) voltage, both of which are generated in the bandgap-voltage generating unit. The control-comparison unit generates a PTAT voltage based on the second PTAT current, and generates a control voltage based on a difference voltage value between the PTAT voltage and the bandgap voltage. The difference current generating unit generates the difference current based on the control voltage, wherein the difference current is proportional to an absolute voltage value of the control voltage. The referential voltage generating unit generates a referential voltage based on the bandgap voltage and the differential current.