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. 03, 2022
Filed:
Feb. 04, 2021
Applicant:
Dialog Semiconductor B.v., s-Hertogenbosch, NL;
Inventor:
Andrew John Myles, Edinburgh, GB;
Assignee:
Dialog Semiconductor B.V., 's-Hertogenbosch, NL;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/26 (2006.01); H03K 19/20 (2006.01); H03K 17/00 (2006.01);
U.S. Cl.
CPC ...
G05F 3/26 (2013.01); H03K 19/20 (2013.01);
Abstract
A voltage selection circuit for selecting a voltage from a plurality of input voltages comprising a plurality of diodes, each diode having a first terminal coupled to one of the input voltages, and a current sensor configured to sense a current flow through each diode, wherein the selected voltage is dependent on the sensed current flow. In operation, the circuit functions as a comparator to detect the maximum among the input voltages. The comparator decision is used to close one or more of the power switches to ensure that the load is powered from the highest input voltage.