公开(公告)号：US20130265855A1

公开(公告)日：2013-10-10

申请号：US13907493

申请日：2013-05-31

Applicant: STMicroelectronics S.r.l.

Inventor： Davide Ugo Ghisu ,  Antonio Ricciardo ,  Sandro Rossi

IPC: H03K5/08 ,  H04B11/00

CPC classification number: H03K5/084 ,  H03K17/102 ,  H03K17/6872 ,  H03K17/6874 ,  H03K17/693 ,  H03K2217/0054 ,  H04B11/00

Abstract: A switching circuit for transmission channel for ultrasound applications is electrically coupled between a connection terminal and a low voltage output terminal. The switching circuit includes a receiving switch, a high voltage clamp circuit electrically coupled between the connection terminal and a central node, and a low voltage clamping switch electrically coupled between said central node and a reference voltage. The receiving switch is a low voltage switch and is electrically coupled between the central node and the low voltage output terminal. The clamping switch and the receiving switch are controlled in a complementary way with respect to each other. A transmission channel for ultrasound applications includes the switching circuit

Abstract translation: 用于超声应用的传输通道的切换电路电耦合在连接端子和低电压输出端子之间。 开关电路包括接收开关，电连接在连接端子和中心节点之间的高电压钳位电路以及电耦合在所述中心节点和参考电压之间的低压钳位开关。 接收开关是低压开关，并且电耦合在中心节点和低压输出端子之间。 夹紧开关和接收开关以互补的方式相互控制。 用于超声应用的传输通道包括开关电路

公开(公告)号：US09455693B2

公开(公告)日：2016-09-27

申请号：US13907493

申请日：2013-05-31

Applicant: STMicroelectronics S.r.l.

Inventor： Davide Ugo Ghisu ,  Antonio Ricciardo ,  Sandro Rossi

IPC: H03K17/00 ,  H04B11/00 ,  H03K5/08 ,  H03K17/10 ,  H03K17/687 ,  H03K17/693

CPC classification number: H03K5/084 ,  H03K17/102 ,  H03K17/6872 ,  H03K17/6874 ,  H03K17/693 ,  H03K2217/0054 ,  H04B11/00

Abstract: A switching circuit for transmission channel for ultrasound applications is electrically coupled between a connection terminal and a low voltage output terminal. The switching circuit includes a receiving switch, a high voltage clamp circuit electrically coupled between the connection terminal and a central node, and a low voltage clamping switch electrically coupled between said central node and a reference voltage. The receiving switch is a low voltage switch and is electrically coupled between the central node and the low voltage output terminal. The clamping switch and the receiving switch are controlled in a complementary way with respect to each other. A transmission channel for ultrasound applications includes the switching circuit.

Abstract translation: 用于超声应用的传输通道的切换电路电耦合在连接端子和低电压输出端子之间。 开关电路包括接收开关，电连接在连接端子和中心节点之间的高电压钳位电路以及电耦合在所述中心节点和参考电压之间的低压钳位开关。 接收开关是低压开关，并且电耦合在中心节点和低压输出端子之间。 夹紧开关和接收开关以互补的方式相互控制。 用于超声应用的传输通道包括开关电路。

公开(公告)号：US08947150B2

公开(公告)日：2015-02-03

申请号：US14256689

申请日：2014-04-18

Applicant: STMicroelectronics S.r.l.

Inventor： Davide Ugo Ghisu ,  Sandro Rossi ,  Antonio Ricciardo

IPC: H03L5/00 ,  H03K3/356

CPC classification number: H03K3/356113 ,  H03K5/12 ,  H03K19/00361

Abstract: A multi-level shifter includes a first branch having first and second transistors coupled between a higher voltage terminal and a lower voltage terminal. The multi-level shifter comprises a second branch, in parallel with the first branch, having: a third transistor, coupled between said higher voltage reference terminal and an output node, a fourth switching transistor coupled between said output node and said lower voltage terminal. Said third and fourth transistors have respective control terminals controlled by drain terminals of said first and second transistors, respectively. The shifter includes a bidirectional battery coupled between said drain terminals of said first and second transistors to supply first and second voltages having the same magnitude and different polarities. Said fourth transistor is controlled according to the first voltage when said first transistor is turned on and said third transistor is controlled according to the second voltage when said second transistor is turned on.

Abstract translation: 多电平移位器包括具有耦合在较高电压端子和较低电压端子之间的第一和第二晶体管的第一支路。 多电平移位器包括与第一分支并联的第二分支，具有：耦合在所述高电压参考端和输出节点之间的第三晶体管，耦合在所述输出节点和所述下电压端之间的第四开关晶体管。 所述第三和第四晶体管分别具有由所述第一和第二晶体管的漏极端子控制的各个控制端子。 移位器包括耦合在所述第一和第二晶体管的所述漏极端子之间的双向电池，以提供具有相同幅度和不同极性的第一和第二电压。 当所述第一晶体管导通时，所述第四晶体管根据所述第一电压被控制，并且当所述第二晶体管导通时，根据所述第二电压来控制所述第三晶体管。

公开(公告)号：US08710874B2

公开(公告)日：2014-04-29

申请号：US14071315

申请日：2013-11-04

Applicant: STMicroelectronics S.r.l.

Inventor： Sandro Rossi ,  Giulio Ricotti ,  Davide Ugo Ghisu ,  Antonio Ricciardo

IPC: H03K7/06

CPC classification number: G05F3/02 ,  H03K19/018521 ,  H03K19/09443

Abstract: A transmission channel configured to transmit high-voltage pulses and to receive echos of the high-voltage pulses includes a high voltage buffer, a voltage clamp and a switch. The voltage clamp may include clamping transistors and switching off transistors coupled together in series with body diodes in anti-series. The transmission channel may include a reset circuit configured to bias the transmission channel between pulses. The switch may include a bootstrap circuit.

Abstract translation: 配置成传输高电压脉冲并接收高电压脉冲的回波的传输通道包括高电压缓冲器，电压钳和开关。 电压钳可以包括钳位晶体管和截止与串联的体二极管串联在一起的晶体管。 传输信道可以包括被配置为在脉冲之间偏置传输信道的复位电路。 开关可以包括自举电路。

公开(公告)号：US20140055188A1

公开(公告)日：2014-02-27

申请号：US14071315

申请日：2013-11-04

Applicant: STMicroelectronics S.r.l.

Inventor： Sandro Rossi ,  Giulio Ricotti ,  Davide Ugo Ghisu ,  Antonio Ricciardo

IPC: G05F3/02

CPC classification number: G05F3/02 ,  H03K19/018521 ,  H03K19/09443

Abstract: A transmission channel configured to transmit high-voltage pulses and to receive echos of the high-voltage pulses includes a high voltage buffer, a voltage clamp and a switch. The voltage clamp may include clamping transistors and switching off transistors coupled together in series with body diodes in anti-series. The transmission channel may include a reset circuit configured to bias the transmission channel between pulses. The switch may include a bootstrap circuit.

Abstract translation: 配置成传输高电压脉冲并接收高电压脉冲的回波的传输通道包括高电压缓冲器，电压钳和开关。 电压钳可以包括钳位晶体管和截止与串联的体二极管串联在一起的晶体管。 传输信道可以包括被配置为在脉冲之间偏置传输信道的复位电路。 开关可以包括自举电路。