公开(公告)号：US20210184490A1

公开(公告)日：2021-06-17

申请号：US17118028

申请日：2020-12-10

Applicant: STMicroelectronics (Tours) SAS ,  STMicroelectronics, Inc.

Inventor： Mathieu ROUVIERE ,  Jeffrey BLAUSER, JR. ,  Karl GRANGE ,  Mohamed SAADNA

IPC: H02J7/34 ,  G06F1/26 ,  G06F13/42 ,  G06F1/3234

Abstract: A power supply interface includes a first switch that couples an input terminal to an output terminal. A voltage dividing bridge is coupled to receive a supply potential. A comparator has a first input connected to a first node of the bridge and a second input configured to receive a constant potential. A digital-to-analog converter generates a control voltage that is selectively coupled by a second switch to a second node of the bridge. A circuit control controls actuation of the second switch based on operating mode and generates a digital value input to the converter based on a negotiated set point of the supply potential applied to the input terminal.