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:
Jun. 11, 2019
Filed:
Mar. 28, 2017
Qualcomm Incorporated;
Harshat Pant, San Diego, CA (US);
Rajeev Jain, San Diego, CA (US);
Sassan Shahrokhinia, San Diego, CA (US);
Lam Ho, Austin, TX (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An integrated circuit is disclosed for power multiplexing with an active load. In an example aspect, the integrated circuit includes a first power rail, a second power rail, a load power rail, multiple power-multiplexer tiles, and power-multiplexer control circuitry. The first power rail is at a first voltage, and the second power rail is at a second voltage. The multiple power-multiplexer tiles are coupled in series in a chained arrangement and jointly perform a power-multiplexing operation responsive to a power-rail switching signal. Each power-multiplexer tile switches between coupling the load power rail to the first power rail and the second power rail. The power-multiplexer control circuitry is coupled to the first and second power rails and includes a comparator to produce a relative voltage signal based on the first and second voltages. The power-multiplexer control circuitry generates the power-rail switching signal based on the relative voltage signal.