公开(公告)号：US20240283450A1

公开(公告)日：2024-08-22

申请号：US18172871

申请日：2023-02-22

Applicant: Apple Inc.

Inventor： Gary Seigneuret ,  Giulio Maria Iadicicco ,  Maria Khukhryanskaya ,  Emmanuela M. Campolo

IPC: H03K17/693 ,  G06F1/26

CPC classification number: H03K17/693 ,  G06F1/26 ,  H03K19/018521

Abstract: A multiplex circuit for computer systems includes multiple bootstrap switches that share a common capacitor for generating a boost voltage. When one of the bootstrap switches is activated, it is coupled to the common capacitor which is used to generate the boost voltage to control a switch transistor in the activated bootstrap circuit. Upon deactivating an active bootstrap switch, the common capacitor is pre-charged prior to the activation of another bootstrap switch.