公开(公告)号：US10177759B2

公开(公告)日：2019-01-08

申请号：US15193600

申请日：2016-06-27

Applicant: STMicroelectronics S.R.L.

Inventor： Valeria Bottarel ,  Sandro Rossi

IPC: H03K17/687 ,  A61B8/00 ,  H03K5/08 ,  H03K17/74

Abstract: Switching circuitry includes first and second transistors in series between two terminals and including a common control node with a capacitance between the common control node and an intermediate point. A control circuit includes first and second circuits configured to charge and discharge the capacitance as a function of first and second control signals. The control circuit includes a third circuit having a plurality of diodes and a switch that operates when the voltage at the capacitance is greater than a threshold two diodes in cascade between the intermediate point and the common control node to enable current flow from the intermediate point to the common control node. When the voltage at the capacitance is smaller than the given threshold two diodes are connected in series between the common control node and the intermediate point to enable current flow from the common control node to the intermediate point.

公开(公告)号：US20170310320A1

公开(公告)日：2017-10-26

申请号：US15193600

申请日：2016-06-27

Applicant: STMicroelectronics S.R.L.

Inventor： Valeria Bottarel ,  Sandro Rossi

IPC: H03K17/687 ,  A61B8/00 ,  H03K5/08 ,  H03K17/74

CPC classification number: H03K17/687 ,  A61B8/4494 ,  H03K5/08 ,  H03K17/6874 ,  H03K17/74

Abstract: Switching circuitry includes first and second transistors in series between two terminals and including a common control node with a capacitance between the common control node and an intermediate point. A control circuit includes first and second circuits configured to charge and discharge the capacitance as a function of first and second control signals. The control circuit includes a third circuit having a plurality of diodes and a switch that operates when the voltage at the capacitance is greater than a threshold two diodes in cascade between the intermediate point and the common control node to enable current flow from the intermediate point to the common control node. When the voltage at the capacitance is smaller than the given threshold two diodes are connected in series between the common control node and the intermediate point to enable current flow from the common control node to the intermediate point.

公开(公告)号：US09209763B2

公开(公告)日：2015-12-08

申请号：US14052495

申请日：2013-10-11

Applicant: STMicroelectronics S.r.l.

Inventor： Valeria Bottarel ,  Giulio Ricotti ,  Sandro Rossi

IPC: H03F3/45 ,  H02N2/18 ,  H02M1/00

CPC classification number: H03F3/45076 ,  H02M2001/0006 ,  H02N2/181

Abstract: A differentiator generates a time derivative signal from a time-variable signal. A transconductance amplifier generates a biasing control signal as a function of the time derivative signal. A supply network functions to supply the differentiator and transconductance amplifier. The supply network is driven by the biasing control signal output from the transconductance amplifier. With this configuration, speed of operation of the differentiator and transconductance amplifier vary with the supply provided by the supply network, and the supply is modulated as a function of the received time-variable signal.

Abstract translation: 微分器从时间变量信号产生时间导数信号。 跨导放大器产生作为时间导数信号的函数的偏置控制信号。 供电网络用于提供微分器和跨导放大器。 供电网络由跨导放大器输出的偏置控制信号驱动。 利用这种配置，微分器和跨导放大器的操作速度随着供电网络的供给而变化，并且电源根据接收到的时间变量信号进行调制。