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:
Mar. 10, 2020
Filed:
Sep. 13, 2017
Nordic Semiconductor Asa, Trondheim, NO;
Samuli Antti Hallikainen, Trondheim, NO;
Nordic Semiconductor ASA, Trondheim, NO;
Abstract
A voltage reducing circuit includes a power switch circuit portion having high-side and low-side field-effect-transistors connected at a switch node. The power switch circuit portion has an on-state wherein the high-side transistor is enabled and the low-side transistor is disabled and, vice versa, an off-state. An energy storage circuit portion including an inductor connected to the switch node is arranged to provide an output voltage. A timer determines a falltime duration required for the output voltage to fall to a threshold value. A controller switches the voltage reducing circuit between a first mode of operation in which a periodic pulse width modulated drive signal is applied to the high-side and low-side field-effect-transistors; and a second mode of operation in which a pulse is applied to the high-side and low-side field-effect-transistors only if the output voltage reaches the threshold value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile