公开(公告)号：US20250080089A1

公开(公告)日：2025-03-06

申请号：US18459125

申请日：2023-08-31

Applicant: QUALCOMM Incorporated

Inventor： Baptiste GRAVE ,  Robert David FROGGATT ,  Stefano FACCHIN ,  Roi NAOR

IPC: H03K3/03 ,  H03K5/26

Abstract: An injection-locked oscillator includes a plurality of delay elements, two or more voltage control circuits, a phase comparator and a controller. The plurality of delay elements is connected in a loop and coupled to a global power supply. Each delay element has an input driven by a preceding stage and an output that drives a next stage. Each voltage control circuit couples one of the plurality of delay elements to the global power supply. The phase comparator is coupled to in-phase and quadrature outputs of the injection-locked oscillator. The controller is coupled to an output of the phase comparator and is configured to drive control inputs of the two or more voltage control circuits. The control input of each voltage control circuit determines a level of a voltage drop across the each voltage control circuit.