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:
Sep. 15, 2020
Filed:
Nov. 20, 2018
Analog Devices International Unlimited Company, Limerick, IE;
Analog Devices International Unlimited Company, Limerick, IE;
Abstract
Techniques for compensating temperature-dependent aspects of oscillator circuits are provided. In an example, an oscillator circuit can include an oscillator capacitor, a comparator and overshoot compensation circuitry for providing an oscillation period insensitive to a temperature-dependent comparator overshoot. The oscillator capacitor can be charged during a charging portion of the oscillation period and can be discharged during a discharging portion of the oscillation period. The comparator can determine when the oscillator capacitor has been charged to a first threshold. The overshoot compensation circuitry can store an indication of temperature-dependent comparator overshoot and, in response, generate and apply an adjustable reference voltage or pre-charge to a terminal of the oscillator capacitor.