公开(公告)号：US06507227B2

公开(公告)日：2003-01-14

申请号：US09948144

申请日：2001-09-06

申请人： Angelo Genova ,  Roberto Gariboldi ,  Aldo Novelli ,  Giulio Ricotti

发明人： Angelo Genova ,  Roberto Gariboldi ,  Aldo Novelli ,  Giulio Ricotti

IPC分类号： H03K301

CPC分类号： G01R19/16519 ,  H02M2001/0009

摘要： The device and method monitor the current delivered to a load through a power transistor including a sense transistor. The circuit includes a disturbances attenuating circuit that has a differential stage, and first, second and third stages referenced to ground, the respective input nodes of which are connected in common to an output node of the differential stage. The third stage is formed by a transistor identical to a transistor of the first stage and delivers a current signal through a current terminal thereof, proportional to the current being delivered to the load.

公开(公告)号：US08638132B2

公开(公告)日：2014-01-28

申请号：US13538802

申请日：2012-06-29

申请人： Sandro Rossi ,  Giulio Ricotti

发明人： Sandro Rossi ,  Giulio Ricotti

IPC分类号： H03B1/00 ,  H03K3/00

CPC分类号： G05F3/02 ,  H03K19/018521 ,  H03K19/09443

摘要： A transmission channel includes at least one high voltage buffer block having buffer transistors and respective buffer diodes, being electrically coupled between respective voltage reference terminals, these buffer transistors being also coupled to a clamping block, in turn including clamping transistors connected to at least one output terminal of this transmission channel through diodes coupled to prevent the body diodes of the clamping transistors from conducting. The transmission channel includes at least one reset circuit having diodes and being electrically coupled between circuit nodes of the high voltage buffer block and of the clamping block, these circuit nodes being in correspondence with conduction terminals of the transistors comprised into the high voltage buffer block and into the clamping block.

摘要翻译： 传输通道包括至少一个具有缓冲晶体管和相应的缓冲二极管的高电压缓冲器块，其电耦合在相应的电压参考端子之间，这些缓冲晶体管还耦合到钳位块，反过来还包括连接到至少一个输出端的钳位晶体管 该传输通道的端子通过二极管耦合以防止钳位晶体管的体二极管导通。 传输通道包括至少一个具有二极管的复位电路，并且电耦合在高电压缓冲块和钳位块的电路节点之间，这些电路节点对应于包含在高电压缓冲块中的晶体管的导电端子， 进入夹紧块。

公开(公告)号：US20120313689A1

公开(公告)日：2012-12-13

申请号：US13536818

申请日：2012-06-28

申请人： Valeria Bottarel ,  Giulio Ricotti ,  Silvia Marabelli

发明人： Valeria Bottarel ,  Giulio Ricotti ,  Silvia Marabelli

IPC分类号： H03K17/687

CPC分类号： H03K17/693 ,  B06B1/0215 ,  H03K17/06 ,  H03K17/08122 ,  H03K17/08142 ,  H03K17/6872 ,  H03K17/74

摘要： A low voltage isolation circuit is coupled between an input terminal for receiving a high voltage signal and an output terminal for transmitting the high voltage signal to a load. The isolation circuit includes a driving block; having a first driving transistor coupled between a first voltage reference and an intermediate node and a second driving transistor coupled between the intermediate node and a second voltage reference; an isolation block connected between the input and output terminals and, through a protection block to the intermediate node. The protection block includes first and second protection transistors (MD1, coupled in anti-series to each other and having control terminals receiving complementary protection driving signals. The isolation block includes a voltage limiter block, a diode block and a control transistor connected across the diode block between the input and output terminals and having a control terminal connected to the intermediate node through the protection block.

摘要翻译： 低电压隔离电路耦合在用于接收高电压信号的输入端子和用于将高电压信号传输到负载的输出端子之间。 隔离电路包括驱动块; 具有耦合在第一参考电压和中间节点之间的第一驱动晶体管和耦合在中间节点和第二电压基准之间的第二驱动晶体管; 连接在输入和输出端之间的隔离块，并通过保护块连接到中间节点。 保护块包括第一和第二保护晶体管（MD1，彼此反串联并且具有接收互补保护驱动信号的控制端子），隔离块包括一个连接在二极管上的电压限制器块，二极管块和控制晶体管 阻塞在输入和输出端之间，并具有通过保护块连接到中间节点的控制终端。

公开(公告)号：US08018819B2

公开(公告)日：2011-09-13

申请号：US12117617

申请日：2008-05-08

申请人： Bruno Murari ,  Ubaldo Mastromatteo ,  Giulio Ricotti

发明人： Bruno Murari ,  Ubaldo Mastromatteo ,  Giulio Ricotti

IPC分类号： G11B9/00

CPC分类号： H02K41/0356 ,  G11B9/1454

摘要： A microelectromechanical device that includes a fixed supporting body, at least one semiconductor body, which is movable with respect to the fixed supporting body, and at least one micromotor for moving the semiconductor body with respect to the fixed supporting body, the micromotor having at least one permanent magnet and a coil, which are coupled together and are movable with respect to one another. A ferromagnetic guide is coupled to the magnet and is shaped so as to concentrate lines of magnetic field generated by the magnet towards the coil.

摘要翻译： 一种微机电装置，其包括固定支撑体，至少一个半导体本体，其相对于固定支撑体可移动;以及至少一个微电机，用于相对于固定支撑体移动半导体本体，所述微电机至少具有 一个永磁体和线圈，它们联接在一起并且可相对于彼此移动。 铁磁引导件耦合到磁体并且被成形为将磁体产生的磁场线集中到线圈。

公开(公告)号：US20100164582A1

公开(公告)日：2010-07-01

申请号：US12347517

申请日：2008-12-31

申请人： Giulio Ricotti ,  Riccardo Depetro

发明人： Giulio Ricotti ,  Riccardo Depetro

IPC分类号： H03K3/356 ,  H03K3/00 ,  B06B1/02 ,  H04R23/00

CPC分类号： G01S7/523 ,  H03K3/356113 ,  H03K17/04206 ,  H03K17/6874 ,  H03K2217/0054

摘要： A circuit includes a switch, having first and second transistors, and a driving device for driving the switch. A latch circuit, coupled between respective common gate and source terminals of the first and second transistors, supplies the common gate terminal with first and second control signals to turn off and on the first and second transistors. The latch circuit comprises a flip-flop coupled to the common source terminal and having a reset terminal coupled to the common source terminal by a reset resistance, a set terminal coupled to the common source terminal by a set resistance and an output terminal coupled to the common gate terminal. The latch circuit further includes an activation circuit connected to the set and reset terminals of the flip-flop and to the common source terminal to dynamically short-circuit the set and reset resistances during the falling edges of the signal applied to the switch.

摘要翻译： 电路包括具有第一和第二晶体管的开关和用于驱动开关的驱动装置。 耦合在第一和第二晶体管的相应公共栅极和源极端子之间的锁存电路向共用栅极端子提供第一和第二控制信号以关断第一和第二晶体管。 锁存电路包括耦合到公共源极端子的触发器，并具有通过复位电阻耦合到公共源极端子的复位端子，通过设定电阻耦合到公共源极端子的设置端子和耦合到公共源极端子的输出端子 普通门终端。 锁存电路还包括连接到触发器的设置和复位端以及公共源极的激活电路，以在施加到开关的信号的下降沿期间动态地使设定和复位电阻短路。

公开(公告)号：US07521984B2

公开(公告)日：2009-04-21

申请号：US11753839

申请日：2007-05-25

申请人： Giulio Ricotti

发明人： Giulio Ricotti

IPC分类号： H03K17/687

CPC分类号： H03K17/6874 ,  H03K17/04206

摘要： A driving circuit of a switch includes first and second transistors connected in series to each other and to relative intrinsic diodes in antiseries and driven by a driving device that includes at least one first and one second output terminal connected to the switch to supply it with a first control signal for driving the switch in a first working state and a second control signal for driving the switch in a second working state. At least one latch circuit coupled between respective common gate and source terminals of the first and second transistors supplies the common gate terminal with the first and second control signals, respectively, according to the working state to turn off and turn on the first and second transistors.

摘要翻译： 开关的驱动电路包括彼此串联连接的第一和第二晶体管以及反电容器中的相对本征二极管，并且由驱动装置驱动，所述驱动装置包括连接到开关的至少一个第一和第二输出端，以将其提供给 用于在第一工作状态下驱动开关的第一控制信号和用于在第二工作状态下驱动开关的第二控制信号。 耦合在第一和第二晶体管的相应公共栅极和源极端子之间的至少一个锁存电路分别根据工作状态向共用栅极端子分别提供第一和第二控制信号，以关断和接通第一和第二晶体管 。

公开(公告)号：US06248616B1

公开(公告)日：2001-06-19

申请号：US09491326

申请日：2000-01-26

申请人： Enrico Maria Ravanelli ,  Massimo Pozzoni ,  Giorgio Pedrazzini ,  Giulio Ricotti

发明人： Enrico Maria Ravanelli ,  Massimo Pozzoni ,  Giorgio Pedrazzini ,  Giulio Ricotti

IPC分类号： H01L21332

CPC分类号： H01L27/0248 ,  H01L27/088

摘要： A suppression method is applied to an integrated circuit formed on a substrate of p-type material having at least one region of n-type material with junction isolation, a first electrical contact on the frontal surface of the substrate, a second electrical contact on the n-type region and a third electrical contact on the back of the substrate connected to a reference (ground) terminal of the integrated circuit. To avoid current in the substrate due to the conduction of parasitic bipolar transistors in certain operating conditions of the integrated circuit, the method provides for monitoring the potential of the second contact to detect if this potential departs from the (ground) potential of the reference terminal by an amount greater than a predetermined threshold value. If this occurs the first contact is taken to the potential of the second contact, otherwise they are held at the (ground) potential of the reference terminal. A device and an integrated circuit which utilize the method are also described.

摘要翻译： 抑制方法被应用于形成在具有至少一个具有结隔离的n型材料的区域的p型材料的衬底上的集成电路，在衬底的正面上的第一电接触，在衬底的正面上的第二电接触 n型区域和连接到集成电路的基准（地））端子的衬底的背面上的第三电接触。 为了避免由于集成电路的某些工作条件下的寄生双极晶体管的导通而导致衬底中的电流，该方法提供了监视第二接触点的电位以检测该电位是否偏离参考端子的（接地）电位 大于预定阈值的量。 如果发生这种情况，则首先接触第二个触点的电位，否则它们保持在参考端子的（接地）电位。 还描述了利用该方法的装置和集成电路。

公开(公告)号：US06246152B1

公开(公告)日：2001-06-12

申请号：US09441148

申请日：1999-11-12

申请人： Luca Fontanella ,  Giovanni Frattini ,  Giorgio Pedrazzini ,  Giulio Ricotti

发明人： Luca Fontanella ,  Giovanni Frattini ,  Giorgio Pedrazzini ,  Giulio Ricotti

IPC分类号： H02N214

CPC分类号： H01L41/042 ,  G11B5/483 ,  H03F3/3028

摘要： A driver circuit for controlling a piezoelectric actuator in a charge mode includes an amplifier having a first input terminal for receiving a control voltage, a second input terminal, and a main final stage with a main output terminal connected to the piezoelectric actuator. The amplifier also includes an additional final stage with an additional output terminal connected to the second input terminal. The main final stage and the additional final stage are connected in parallel with one another so that a current which passes through the main output terminal is proportional in accordance with a predefined factor to a current which passes through the additional output terminal. The driver circuit includes a device having a constant capacitance connected to the second input terminal so that an electrical charge transferred to the piezoelectric actuator is correlated with the control voltage in accordance with the predefined factor and the capacitance.

摘要翻译： 用于控制充电模式中的压电致动器的驱动器电路包括具有用于接收控制电压的第一输入端子，第二输入端子以及连接到压电致动器的主输出端子的主最终级的放大器。 放大器还包括附加的最终级，附加的输出端连接到第二输入端。 主要的最后级和额外的最后级彼此并联连接，使得通过主输出端的电流根据预定义的因子成比例，该电流通过附加的输出端。 驱动器电路包括具有连接到第二输入端子的恒定电容的装置，使得转移到压电致动器的电荷根据预定系数和电容与控制电压相关。

公开(公告)号：US08648629B2

公开(公告)日：2014-02-11

申请号：US13538821

申请日：2012-06-29

申请人： Sandro Rossi ,  Giulio Ricotti ,  Davide Ugo Ghisu ,  Antonio Ricciardo

发明人： Sandro Rossi ,  Giulio Ricotti ,  Davide Ugo Ghisu ,  Antonio Ricciardo

IPC分类号： H03B1/00 ,  H03K3/00

CPC分类号： G05F3/02 ,  H03K19/018521 ,  H03K19/09443

摘要： A transmission channel configured to transmit high-voltage pulses and to receive echoes 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.

摘要翻译： 传输通道被配置为传送高电压脉冲并接收高电压脉冲的回波包括高电压缓冲器，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：US20120268186A1

公开(公告)日：2012-10-25

申请号：US13538802

申请日：2012-06-29

申请人： Sandro Rossi ,  Giulio Ricotti

发明人： Sandro Rossi ,  Giulio Ricotti

IPC分类号： H03K5/08

CPC分类号： G05F3/02 ,  H03K19/018521 ,  H03K19/09443

摘要： A transmission channel includes at least one high voltage buffer block having buffer transistors and respective buffer diodes, being electrically coupled between respective voltage reference terminals, these buffer transistors being also coupled to a clamping block, in turn including clamping transistors connected to at least one output terminal of this transmission channel through diodes coupled to prevent the body diodes of the clamping transistors from conducting. The transmission channel includes at least one reset circuit having diodes and being electrically coupled between circuit nodes of the high voltage buffer block and of the clamping block, these circuit nodes being in correspondence with conduction terminals of the transistors comprised into the high voltage buffer block and into the clamping block.

摘要翻译： 传输通道包括至少一个具有缓冲晶体管和相应的缓冲二极管的高电压缓冲器块，其电耦合在相应的电压参考端子之间，这些缓冲晶体管还耦合到钳位块，反过来还包括连接到至少一个输出端的钳位晶体管 该传输通道的端子通过二极管耦合以防止钳位晶体管的体二极管导通。 传输通道包括至少一个具有二极管的复位电路，并且电耦合在高电压缓冲块和钳位块的电路节点之间，这些电路节点对应于包含在高电压缓冲块中的晶体管的导电端子， 进入夹紧块。