公开(公告)号：US08841956B2

公开(公告)日：2014-09-23

申请号：US13446882

申请日：2012-04-13

申请人： Giulio Ricotti ,  Paolo Bompieri ,  Sandro Rossi

发明人： Giulio Ricotti ,  Paolo Bompieri ,  Sandro Rossi

IPC分类号： H03K17/687 ,  H03K17/00 ,  H03K17/06

CPC分类号： H03K17/063

摘要： A High Voltage switch configuration having an input terminal which receives an input signal and an output terminal which issues an output signal to a load. The High Voltage switch configuration comprises at least a first and a second diode, being placed in antiseries between said input and output terminals and having a pair of corresponding terminals in common, in correspondence of a first internal circuit node.

摘要翻译： 具有接收输入信号的输入端子和向负载发出输出信号的输出端子的高压开关配置。 高电压开关配置包括至少第一和第二二极管，放置在所述输入和输出端子之间的反电容中，并且具有对应于第一内部电路节点的一对相应的端子。

公开(公告)号：US08803342B2

公开(公告)日：2014-08-12

申请号：US13243058

申请日：2011-09-23

申请人： Valeria Bottarel ,  Giulio Ricotti ,  Sandro Rossi

发明人： Valeria Bottarel ,  Giulio Ricotti ,  Sandro Rossi

IPC分类号： H02K1/02 ,  H01L41/00

CPC分类号： H02M7/217 ,  H02K7/1876 ,  H02K35/02

摘要： An energy scavenging device includes an electromagnetic transducer adapted to generate a current in response to accelerations impressed thereto. The device also includes a power switching stage input with the current generated by the electromagnetic transducer, having a network of controlled switches adapted to alternately deliver on output nodes of the switching stage an output current that does not invert its sign and to short-circuit the transducer. There is an output capacitor coupled between the output nodes of the power stage. A controller having a sensor coupled to the electromagnetic transducer is to sense the current flowing therethrough, the controller being adapted to drive the switches of the power stage in order to either short-circuit the electromagnetic transducer or to direct the current flowing through the transducer to charge the output capacitor.

摘要翻译： 能量清除装置包括电磁换能器，其适于响应于加在其上的加速度产生电流。 该装置还包括具有由电磁换能器产生的电流的功率开关级输入端，具有受控开关的网络，该网络适于在开关级的输出节点上交替地输出不反转其符号的输出电流并使其短路 传感器。 有一个输出电容耦合在功率级的输出节点之间。 具有耦合到电磁换能器的传感器的控制器是感测流过其中的电流，控制器适于驱动功率级的开关，以使电磁换能器短路或将流过换能器的电流引导到 对输出电容充电。

公开(公告)号：US20120268200A1

公开(公告)日：2012-10-25

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： H03K17/567

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：US20120161819A1

公开(公告)日：2012-06-28

申请号：US12979149

申请日：2010-12-27

申请人： Sandro Rossi ,  Giulio Ricotti

发明人： Sandro Rossi ,  Giulio Ricotti

IPC分类号： H03K3/00

CPC分类号： H03K17/6874 ,  B06B1/0215 ,  B06B1/06

摘要： A high voltage transmission switch comprises a switching block coupled between a connection terminal to a load and a low voltage output terminal and comprising at least a first switching transistor and a second switching transistor coupled between the connection terminal and the low voltage output terminal and interconnected at a first circuit node; and a driving circuit coupled between a positive low voltage supply reference and a negative high voltage supply reference and having an output terminal connected to the switching block. The driving circuit including at least a first driving transistor coupled between the positive low voltage supply reference and the output terminal and a second driving transistor coupled between the output terminal and the negative high voltage supply reference.

摘要翻译： 高电压传输开关包括耦合到负载的连接端子和低电压输出端子之间的开关块，并且包括至少第一开关晶体管和耦合在连接端子和低压输出端子之间的第二开关晶体管，并且互连在 第一电路节点; 以及驱动电路，其耦合在正低电压源基准和负高电压基准之间，并且具有连接到所述开关块的输出端子。 所述驱动电路至少包括耦合在所述正低电压电源基准和所述输出端子之间的第一驱动晶体管和耦合在所述输出端子和所述负极性高压电源基准之间的第二驱动晶体管。

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。

公开(公告)号：US06778349B2

公开(公告)日：2004-08-17

申请号：US09899832

申请日：2001-07-06

申请人： Giulio Ricotti ,  Sandro Rossi ,  Giovanni Frattini

发明人： Giulio Ricotti ,  Sandro Rossi ,  Giovanni Frattini

IPC分类号： G11B2102

CPC分类号： H01L41/042 ,  G11B5/5552 ,  G11B21/106 ,  G11B21/21 ,  H02N2/0075

摘要： A driving circuit for piezoelectric actuators comprises a chip of semiconductor material integrating both an interface circuit receiving at input a control signal generated by a control logic unit, and a power circuit driving the piezoelectric actuators. The power circuit is directly connected to the output of the interface circuit.

摘要翻译： 用于压电致动器的驱动电路包括半导体材料芯片，其集成了在输入端接收由控制逻辑单元产生的控制信号的接口电路和驱动压电致动器的电源电路。 电源电路直接连接到接口电路的输出。

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：US08669793B2

公开(公告)日：2014-03-11

申请号：US13484078

申请日：2012-05-30

申请人： Giulio Ricotti ,  Sandro Rossi

发明人： Giulio Ricotti ,  Sandro Rossi

IPC分类号： H03B1/00 ,  H03K3/00

CPC分类号： H03K3/355

摘要： A driving circuit has output terminal connected to an ultrasonic transducer and provides an output voltage. The driving circuit includes an output transistor coupled between a voltage reference and the output terminal, a high voltage comparator coupled to said output terminal and to a threshold voltage reference), a start-up circuit controlled by a setting signal; and a switching ON/OFF circuit having an input coupled to the start-up circuit an input coupled to the comparator, and an output coupled to a control terminal of the output transistor. The start-up circuit provides an ON signal to the switching on/off circuit and the comparator provides an OFF signal to the switching on/off circuit which switches off the output transistor. The high voltage comparator generates the switching off signal in response to the output voltage reaching a desired supply voltage value which depends on the value of the first threshold voltage reference.

摘要翻译： 驱动电路具有连接到超声换能器的输出端，并提供输出电压。 驱动电路包括耦合在参考电压和输出端子之间的输出晶体管，耦合到所述输出端子的高电压比较器和阈值电压基准），由设置信号控制的启动电路; 以及开关导通/断开电路，其具有耦合到所述启动电路的输入端，耦合到所述比较器的输入端和耦合到所述输出晶体管的控制端子的输出。 启动电路向开关导通/断开电路提供ON信号，并且比较器向切断输出晶体管的开/关电路提供OFF信号。 高电压比较器响应于输出电压达到取决于第一阈值电压参考值的期望电源电压值而产生关断信号。

公开(公告)号：US08629720B2

公开(公告)日：2014-01-14

申请号：US13482714

申请日：2012-05-29

申请人： Matteo Albertini ,  Daniele Ronchi ,  Sandro Rossi ,  Giulio Ricotti

发明人： Matteo Albertini ,  Daniele Ronchi ,  Sandro Rossi ,  Giulio Ricotti

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/45098 ,  H03F2200/294 ,  H03F2200/453 ,  H03F2203/45492 ,  H03F2203/45674

摘要： The disclosure relates to a driving method for obtaining a linear gain variation of a transconductance amplifier that includes a first differential transistor cell, with adjustment of a driving voltage value of a degenerative driving transistor of the transconductance amplifier The method includes generating an output current signal of a second differential cell corresponding to the first differential transistor cell of the transconductance amplifier, the output current signal having a linear relationship with a transconductance value of the second differential cell as the driving voltage varies; generating a reference current signal having a linear relationship with a differential input voltage; comparing the output current signal and the reference current signal for adjusting the driving voltage value; and modifying the transconductance value of the second differential cell up to a balance of the current signals.

摘要翻译： 本公开涉及一种用于获得跨导放大器的线性增益变化的驱动方法，所述跨导放大器包括第一差分晶体管单元，并调整跨导放大器的退化驱动晶体管的驱动电压值。该方法包括：生成输出电流信号 与所述跨导放大器的所述第一差分晶体管单元对应的第二差分单元，所述输出电流信号随着所述驱动电压变化而与所述第二差分单元的跨导值成线性关系; 产生与差分输入电压具有线性关系的参考电流信号; 比较输出电流信号和参考电流信号来调节驱动电压值; 以及修改所述第二差分单元的跨导值直到当前信号的平衡。