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:
Jul. 24, 2018
Filed:
Jan. 28, 2017
Nxp B.v., Eindhoven, NL;
Robert Entner, Gratkorn, AT;
NXP B.V., Eindhoven, NL;
Abstract
The disclosure relates to a temperature-controlled oscillator. Embodiments disclosed include a temperature-compensated oscillator () comprising: a first capacitive charging circuit () connected between a supply voltage connection () and a common connection (), comprising a first transistor () and a first capacitor (), the first transistor () arranged to switch states when the first capacitor () is charged above a threshold voltage of the first transistor (); a second capacitive charging circuit () connected between the supply voltage connection () and the common connection (), comprising a second transistor () and a second capacitor () arranged to begin discharging when the first transistor () switches states, the second transistor () arranged to switch states when the second capacitor () is discharged below a voltage equal to a supply voltage (VDD) at the supply voltage connection () minus a threshold voltage of the second transistor (); and a third capacitive charging circuit () connected between the supply voltage connection () and the common connection (), comprising a third transistor () and a third capacitor () arranged to begin discharging when the second transistor () switches states, the third transistor () arranged to switch states when the third capacitor () discharges below a threshold voltage of the third transistor ().