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:
Jun. 17, 2025
Filed:
Mar. 22, 2021
Nanjing University of Post and Telecommunications, Nanjing, CN;
Zhikuang Cai, Nanjing, CN;
Zixuan Wang, Nanjing, CN;
Chen Li, Nanjing, CN;
Zushuai Xie, Nanjing, CN;
Jingjing Guo, Nanjing, CN;
Lu Liu, Nanjing, CN;
Yufeng Guo, Nanjing, CN;
Nanjing University Of Post And Telecommunications, Jiangsu, CN;
Abstract
A low-power-consumption low-voltage digital temperature sensor, which acquires temperature information by means of the frequency ratio of a first oscillation signal outputted by a first annular oscillator to a second oscillation signal outputted by a second annular oscillator. The first annular oscillator additionally uses an MOS varactor as a load capacitor, and uses the voltage characteristics of the MOS varactor to lower the power supply voltage fluctuation sensitivity, which is suitable for a low-power-consumption low-voltage environment; meanwhile, the sensor has the advantages of a small size, high digitization, self referencing and the like.