公开(公告)号：US08791727B2

公开(公告)日：2014-07-29

申请号：US13907468

申请日：2013-05-31

Applicant: STMicroelectronics S.r.I.

Inventor： Valeria Bottarel ,  Giulio Ricotti ,  Fabio Quaglia

IPC: H03K3/00 ,  H03B1/00

CPC classification number: H03K17/16 ,  H03K17/08104 ,  H03K17/30

Abstract: A low voltage isolation switch is suitable for receiving from a connection node a high voltage signal and transmitting said high voltage signal to a load via a connection terminal. The isolation switch includes a driving block connected between first and second voltage reference terminals and including a first driving transistor coupled between the first voltage reference (Vss) and a first driving circuit node and a second driving transistor coupled between the driving circuit node and the second supply voltage reference. The switch comprises an isolation block connected to the connection terminal (pzt), the connection node, and the driving central circuit node and including a voltage limiter block, a diode block and a control transistor. The control transistor is connected across the diode block between the connection node and the connection terminal and has a control terminal connected to the driving central circuit node.

Abstract translation: 低压隔离开关适合于从连接节点接收高电压信号，并通过连接端将所述高电压信号发送到负载。 隔离开关包括连接在第一和第二参考电极之间的驱动块，并且包括耦合在第一电压基准（Vss）和第一驱动电路节点之间的第一驱动晶体管和耦合在驱动电路节点和第二驱动电路节点之间的第二驱动晶体管 电源参考电压。 开关包括连接到连接端子（pzt）的隔离块，连接节点和驱动中心电路节点，并且包括电压限制器块，二极管块和控制晶体管。 控制晶体管连接在连接节点和连接端子之间的二极管块两端，并具有连接到驱动中心电路节点的控制端子。

公开(公告)号：US20200076305A1

公开(公告)日：2020-03-05

申请号：US16551984

申请日：2019-08-27

Applicant: STMicroelectronics S.r.I. ,  "ALMA MATER STUDIORUM" - UNIVERSITA' DI BOLOGNA

Inventor： Matteo Pizzotti ,  Michele Dini ,  Aldo Romani ,  Rita Zappa ,  Stefano Corbani ,  Giulio Ricotti

IPC: H02M3/158 ,  G05F1/52

Abstract: An electronic converter has first and second input terminals, first and second output terminals, a current regulator circuit arranged between the first input terminal and an intermediate node, and input capacitor arranged between the intermediate node and the second input terminal, and an output capacitor. A control circuit block is configured to sense an input voltage, compare the regulated voltage to a reference value and generate a first signal, compare the input voltage to a lower threshold and an upper threshold and generate a second signal, switch the electronic converter between an active mode and an idle mode as a function of the first signal, and switch the electronic converter between a recharge phase and a switching phase as a function of the second signal when the electronic converter is in the active mode.

公开(公告)号：US20130255381A1

公开(公告)日：2013-10-03

申请号：US13854782

申请日：2013-04-01

Applicant: STMICROELECTRONICS S.R.I.

Inventor： Giulio Ricotti ,  Alberto Pagani ,  Fulvio Vittorio Fontana ,  Ubaldo Mastromatteo

IPC: G01P15/105

CPC classification number: G01P15/11 ,  B81B7/008 ,  B81B2201/025 ,  B81B2207/012 ,  B81C1/0023 ,  G01C19/5783 ,  G01P15/0802 ,  G01P15/097 ,  G01P15/105 ,  H01L2224/16225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/00014

Abstract: An inertial sensor having a body with an excitation coil and a first sensing coil extending along a first axis. A suspended mass includes a magnetic-field concentrator, in a position corresponding to the excitation coil, and configured for displacing by inertia in a plane along the first axis. A supply and sensing circuit is electrically coupled to the excitation coil and to the first sensing coil, and is configured for generating a time-variable flow of electric current that flows in the excitation coil so as to generate a magnetic field that interacts with the magnetic-field concentrator to induce a voltage/current in the sensing coil. The integrated circuit is configured for measuring a value of the voltage/current induced in the first sensing coil so as to detect a quantity associated to the displacement of the suspended mass along the first axis.

Abstract translation: 惯性传感器，其具有带有激励线圈的主体和沿着第一轴线延伸的第一感测线圈。 悬挂质量体包括磁场集中器，位于对应于激励线圈的位置，并且构造成用于沿沿着第一轴线的平面中的惯性移位。 供电和感测电路电耦合到激励线圈和第一感测线圈，并且被配置为产生在励磁线圈中流动的时间流的电流，以便产生与磁场相互作用的磁场 感应线圈中的电压/电流。 集成电路被配置为测量在第一感测线圈中感应的电压/电流的值，以便检测与悬挂质量沿着第一轴的位移相关联的量。