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1. (WO2018182855) POWER MULTIPLEXING WITH AN ACTIVE LOAD

Pub. No.:    WO/2018/182855    International Application No.:    PCT/US2018/017281
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Thu Feb 08 00:59:59 CET 2018
IPC: H02J 1/08
H02J 1/10
Applicants: QUALCOMM INCORPORATED
Inventors: PANT, Harshat
JAIN, Rajeev
SHAHROKHINIA, Sassan
HO, Lam
Title: POWER MULTIPLEXING WITH AN ACTIVE LOAD
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.