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. 13, 2025
Filed:
Feb. 21, 2023
Texas Instruments Incorporated, Dallas, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
Low-frequency oscillator (LFO) monitoring circuits and methods. An example of an LFO monitoring circuit includes a resistor having first and second resistor terminals with the first resistor terminal coupled to a ground terminal, first and second transistors coupled between a supply voltage terminal and the second resistor terminal, the first transistor having a first control terminal and the second transistor having a second control terminal, a ramp generator having first and second outputs coupled to the first and second control terminals, respectively, and first and second inputs configured to receive, respectively, first and second signals representative of a frequency of a low-frequency oscillator, the ramp generator being configured to provide, at the first output, a first ramp signal based on the first signal and, at the second output, a second ramp signal based on the second signal, and a comparator having a comparator input coupled to the second resistor terminal.