公开(公告)号：US11212893B2

公开(公告)日：2021-12-28

申请号：US16885507

申请日：2020-05-28

Applicant: STMicroelectronics S.r.l.

Inventor： Salvatore Difazio ,  Stefano Corradi ,  Giuseppe Calcagno

IPC: H05B45/34 ,  H03M1/78 ,  H05B45/345

Abstract: An apparatus includes a digital-to-analog converter coupled in series with a source follower, wherein the digital-to-analog converter is configured to control a current flowing through the source follower, and an amplifier having a first input coupled to a reference generator, a second input coupled to a common node of the source follower and the digital-to-analog converter, and an output coupled to a gate of the source follower.

公开(公告)号：US20210378066A1

公开(公告)日：2021-12-02

申请号：US16885507

申请日：2020-05-28

Applicant: STMicroelectronics S.r.l.

Inventor： Salvatore Difazio ,  Stefano Corradi ,  Giuseppe Calcagno

IPC: H05B45/345 ,  H03M1/78

Abstract: An apparatus includes a digital-to-analog converter coupled in series with a source follower, wherein the digital-to-analog converter is configured to control a current flowing through the source follower, and an amplifier having a first input coupled to a reference generator, a second input coupled to a common node of the source follower and the digital-to-analog converter, and an output coupled to a gate of the source follower.

公开(公告)号：US10826466B1

公开(公告)日：2020-11-03

申请号：US16583985

申请日：2019-09-26

Applicant: STMicroelectronics S.r.l.

Inventor： Giuseppe Calcagno ,  Salvatore Difazio

IPC: H03B1/00 ,  H03K3/00 ,  H03K3/012 ,  H03K5/04 ,  H03K17/687

Abstract: A half buffer circuit includes a current source coupled to a first node, a ground connection coupled to a second node, a feedback capacitor coupled between the first node and an output of the half buffer circuit, a transconductor element comprising a first input/output, a second input/output, and a transconductor element control input, and a switch network coupled between the first node and the second node. The first input/output is coupled to the output of the half buffer circuit. The second input/output is coupled to a ground connection. The switch network includes a first switch coupled between the first node and the second node, a second switch coupled between the first node and the transconductor element control input, and a third switch coupled between the second node and the transconductor element control input.