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. 20, 2025
Filed:
May. 18, 2022
Nxp B.v., Eindhoven, NL;
Miten H. Nagda, Bee Cave, TX (US);
Edevaldo Pereira Da Silva, Jr., Austin, TX (US);
Simon Gallimore, Austin, TX (US);
Nidhi Chaudhry, Austin, TX (US);
NXP B.V., Eindhoven, NL;
Abstract
A method and system are provided for supplying power to a backup power domain by connecting a battery voltage to a supply terminal for a backup power domain in a low power microcontroller during a startup mode when a main supply voltage, by detecting application of the main supply voltage to the low power microcontroller at a predetermined safe voltage level, and by activating a selection control circuit to power the backup power domain in the low power microcontroller from the main power supply voltage or the backup power supply voltage based on a software-controlled configuration bit, where the selection control circuit is configured to connect, in response to the software-controlled configuration bit having a first user-selected value, the main power supply voltage to the supply terminal for the backup power domain when the main power supply voltage is smaller than the battery power supply voltage.