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. 09, 2021
Filed:
Jun. 26, 2020
Shanghai Huahong Grace Semiconductor Manufacturing Corporation, Shanghai, CN;
Xiao Hong, Shanghai, CN;
Abstract
The disclosure discloses an RC oscillating circuit. A first end of a capacitor is grounded, a second end of the capacitor is connected to a charging path, a discharging path and a comparator, A first input end of a comparator is connected to first reference voltage. An output end of the comparator outputs a first output signal and is connected to a control end of the discharging path. The first reference voltage provides the flipped voltage of the comparator The first output signal forms an output clock signal. A first regulating circuit is configured to regulate the magnitude of the charging current and realize coarse frequency tuning. A second regulating circuit is configured to regulate the magnitude of the first reference voltage and realize fine frequency tuning. The disclosure has the advantages of low power consumption, fast start, high precision and wide tuning range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile