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公开(公告)号：US08598939B2
公开(公告)日：2013-12-03
申请号：US13350801
申请日：2012-01-15
IPC分类号： H03K17/13
CPC分类号： H03K17/6874 , G01S7/52017
摘要： A T/R switch applicable to an ultrasonograph and capable of transmitting a signal reflected from a living body over a wide band with low noise without causing erroneous operation of the switch or element destruction even when the potential of a transmission signal or reflected signal changes includes: a common source terminal commonly and serially coupling the source terminals of two MOS transistors; a common gate terminal commonly coupling the gate terminals of the two MOS transistors; a main switch, the drain terminals of which are connected to input/output terminals; and a floating voltage circuit which is connected to the common gate terminal and common source terminal, makes the common gate terminal potential follow, in phase, variation in the common source terminal potential, and sends a signal to turn the switch on or off to the common gate terminal.
摘要翻译： 适用于超声波诊断装置的AT / R开关，能够以较低的噪声在宽带上发送从生物体反射的信号，即使在发送信号或反射信号的电位变化的情况下，也不会导致开关或元件破坏的错误操作， 公共源极端子共同并串联耦合两个MOS晶体管的源极端子; 通常连接两个MOS晶体管的栅极端子的公共栅极端子; 主开关，其漏极端子连接到输入/输出端子; 以及与公共栅极端子和公共源极端子连接的浮置电压电路，使公共栅极电位跟随同相源极端子电位的相位变化，并发送信号将开关接通或断开 普通门终端。
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公开(公告)号：US20070075774A1
公开(公告)日：2007-04-05
申请号：US11484591
申请日：2006-07-12
IPC分类号： H03F3/45
CPC分类号： H03F3/45085 , H03F1/26 , H03F3/45475 , H03F3/72 , H03F2200/372 , H03F2203/45066 , H03F2203/45138 , H03F2203/45288 , H03F2203/45352 , H03F2203/45366 , H03F2203/45561 , H03F2203/7236 , H03G1/007 , H03G7/001
摘要： A variable gain amplifier of such configuration that can yield continuously and log-linearly variable gains in relation to control voltage and, at the same time, that does not use an attenuator, an element which otherwise would entail cause of increased noise. The amplifier includes a plurality of gm amplifiers connected in parallel with input signal, exponential multipliers connected respectively to the gm amplifiers, a control section to vary the multiplication coefficient of the exponential multipliers according to the external gain control signal, and an I-V converter circuit to aggregate current output after multiplication and convert the aggregated current output to voltage. A continuously variable gain characteristic can be obtained without the use of an attenuator but by varying multiplication coefficient according to control voltage.
摘要翻译： 这种配置的可变增益放大器可以产生与控制电压相关的连续和对数线性可变增益，并且同时不产生衰减器，否则将导致增加噪声的元件。 放大器包括与输入信号并联连接的多个gm放大器，分别连接到gm放大器的指数乘法器，根据外部增益控制信号改变指数乘法器的乘法系数的控制部分，以及IV转换器电路 累加电流输出后乘以并将电流输出转换为电压。 可以在不使用衰减器的情况下获得连续可变增益特性，而是根据控制电压改变乘法系数。
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公开(公告)号：US20080238532A1
公开(公告)日：2008-10-02
申请号：US11958373
申请日：2007-12-17
CPC分类号： H02M7/538 , H03K3/356113 , H03K19/018521
摘要： With an ultrasound pulser suitable for application to a medical ultrasound system, and so forth, a high voltage power supply of a transducer drive circuitry, on both high potential and low potential sides, is rendered variable in a range of 0 V on the order of ±200 V, thereby implementing a semiconductor integrated circuit wherein a plurality of the ultrasound pulsers corresponding to a plurality of channels, respectively, are integrally formed on a small area. The ultrasound pulser has a configuration wherein, in a MOSFET gate drive circuitry, an input voltage pulse is converted into a current pulse, and the current pulse is converted again into a voltage pulse on the basis of a high potential side voltage +HV, and a low potential side voltage −HV, applied to a transducer drive circuitry, whereupon voltage level shift in the input voltage pulse is attained, and a voltage pulse swing of an output buffer of the MOSFET gate drive circuitry receiving a shifted voltage pulse is generated by the MOSFET gate drive circuitry similarly on the basis of the high potential side voltage +HV, and the low potential side voltage −HV, applied to the transducer drive circuitry. The MOSFET gate drive circuitry is DC-coupled with the transducer drive circuitry.
摘要翻译： 利用适用于医疗超声系统的超声波脉冲发生器等，在高电位和低电位侧的换能器驱动电路的高电压电源可以在0V的范围内变化， ±200V，由此实现半导体集成电路，其中分别对应于多个通道的多个超声波脉冲器一体地形成在小区域上。 超声波脉冲发生器具有这样的结构，其中在MOSFET栅极驱动电路中，将输入电压脉冲转换为电流脉冲，并且基于高电位侧电压+ HV将电流脉冲再次转换为电压脉冲，以及 施加到换能器驱动电路的低电位侧电压-HV，从而获得输入电压脉冲中的电压电平偏移，并且通过接收移位的电压脉冲的MOSFET栅极驱动电路的输出缓冲器的电压脉冲摆幅由 MOSFET栅极驱动电路类似地基于施加到换能器驱动电路的高电位侧电压+ HV和低电位侧电压-HV。 MOSFET栅极驱动电路与换能器驱动电路直流耦合。
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4.发明授权公开(公告)号：US08143924B2
公开(公告)日：2012-03-27
申请号：US12685024
申请日：2010-01-11
IPC分类号： H03K3/00
CPC分类号： H03K17/74 , H03K17/6874
摘要： There is provided a circuit whose output is free from high impedance to improve wrong transmission and waveform overshoot, realizing a semiconductor integrated circuit device in which plural channels is integrated with transmitter circuit as unit channel, in the transmitter circuit used in a medical ultrasound system and drives a transducer by voltage pulses having plural positive and negative electric potentials including ground potential. The transmitter circuit includes a conventional pulse generating circuit supplied with positive and negative voltage largest in absolute value, a P-channel analog switching pulse generating circuit supplied with positive voltage being the second largest therein, an N-channel analog switching pulse generating circuit supplied with negative voltage being the second largest, and an N-channel analog switching ground level damping circuit supplied with ground potential. The circuits are connected to output terminal. Switch control signals drive ultrasound transducers by turning on and off the circuits.
摘要翻译： 提供了一种电路，其输出没有高阻抗以改善错误的传输和波形过冲，实现了在用于医疗超声系统的发射机电路中多个信道与作为单位信道的发射机电路集成的半导体集成电路器件， 通过具有包括地电位的多个正电位和负电位的电压脉冲驱动换能器。 发送器电路包括以绝对值最大的正，负电压供给的常规脉冲发生电路，提供有其中第二大的正电压的P沟道模拟开关脉冲发生电路，提供有N沟道模拟开关脉冲发生电路 负电压为第二大，N沟道模拟开关接地电平阻尼电路提供地电位。 电路连接到输出端子。 开关控制信号通过打开和关闭电路来驱动超声波换能器。
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5.发明授权Semiconductor integrated circuit capable of directly coupling low-voltage signals with high-voltage signals 有权能够将低压信号与高电压信号直接耦合的半导体集成电路公开(公告)号：US07692456B2
公开(公告)日：2010-04-06
申请号：US11958373
申请日：2007-12-17
IPC分类号： H03K3/00
CPC分类号： H02M7/538 , H03K3/356113 , H03K19/018521
摘要： A semiconductor integrated circuit having a plurality of ultrasound pulsers corresponding to a plurality of respective channels, and integrally formed on a small area. The ultrasound pulsers each include a MOSFET gate drive circuit in which an input voltage pulse is converted into a current pulse, and the current pulse is converted again into a voltage pulse on the basis of a high potential side voltage +HV, and a low potential side voltage −HV, applied to a transducer drive circuit, and in which a voltage level shift in the input voltage pulse is attained, and a voltage pulse swing is generated by the MOSFET gate drive circuit on the basis of the high potential side voltage +HV, and the low potential side voltage −HV. The MOSFET gate drive circuit is DC-coupled with the transducer drive circuit.
摘要翻译： 一种半导体集成电路，其具有对应于多个相应通道的多个超声脉冲发生器，并且整体地形成在小区域上。 超声脉冲器各自包括MOSFET栅极驱动电路，其中输入电压脉冲被转换为电流脉冲，并且电流脉冲基于高电位侧电压+ HV再次转换为电压脉冲，并且低电位 侧电压-HV施加到换能器驱动电路，并且其中获得输入电压脉冲中的电压电平偏移，并且MOSFET栅极驱动电路基于高电位侧电压+ HV，低电位侧电压-HV。 MOSFET栅极驱动电路与传感器驱动电路直流耦合。
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公开(公告)号：US07973573B2
公开(公告)日：2011-07-05
申请号：US12700625
申请日：2010-02-04
IPC分类号： H03K3/00
CPC分类号： H02M7/538 , H03K3/356113 , H03K19/018521
摘要： A semiconductor integrated circuit having a plurality of ultrasound pulsers corresponding to a plurality of respective channels, and integrally formed on a small area. The ultrasound pulsers each include a MOSFET gate drive circuit in which an input voltage pulse is converted into a current pulse, and the current pulse is converted again into a voltage pulse on the basis of a high potential side voltage +HV, and a low potential side voltage −HV, applied to a transducer drive circuit, and in which a voltage level shift in the input voltage pulse is attained, and a voltage pulse swing is generated by the MOSFET gate drive circuit on the basis of the high potential side voltage +HV, and the low potential side voltage −HV. The MOSFET gate drive circuit is DC-coupled with the transducer drive circuit.
摘要翻译： 一种半导体集成电路，其具有对应于多个相应通道的多个超声脉冲发生器，并且整体地形成在小区域上。 超声脉冲器各自包括MOSFET栅极驱动电路，其中输入电压脉冲被转换为电流脉冲，并且电流脉冲基于高电位侧电压+ HV再次转换为电压脉冲，并且低电位 侧电压-HV施加到换能器驱动电路，并且其中获得输入电压脉冲中的电压电平偏移，并且MOSFET栅极驱动电路基于高电位侧电压+ HV，低电位侧电压-HV。 MOSFET栅极驱动电路与传感器驱动电路直流耦合。
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公开(公告)号：US07372330B2
公开(公告)日：2008-05-13
申请号：US11484591
申请日：2006-07-12
IPC分类号： H03F3/45
CPC分类号： H03F3/45085 , H03F1/26 , H03F3/45475 , H03F3/72 , H03F2200/372 , H03F2203/45066 , H03F2203/45138 , H03F2203/45288 , H03F2203/45352 , H03F2203/45366 , H03F2203/45561 , H03F2203/7236 , H03G1/007 , H03G7/001
摘要： A variable gain amplifier of such configuration that can yield continuously and log-linearly variable gains in relation to control voltage and, at the same time, that does not use an attenuator, an element which otherwise would entail cause of increased noise. The amplifier includes a plurality of gm amplifiers connected in parallel with input signal, exponential multipliers connected respectively to the gm amplifiers, a control section to vary the multiplication coefficient of the exponential multipliers according to the external gain control signal, and an I-V converter circuit to aggregate current output after multiplication and convert the aggregated current output to voltage. A continuously variable gain characteristic can be obtained without the use of an attenuator but by varying multiplication coefficient according to control voltage.
摘要翻译： 这种配置的可变增益放大器可以产生与控制电压相关的连续和对数线性可变增益，并且同时不产生衰减器，否则将导致增加噪声的元件。 放大器包括与输入信号并联连接的多个gm放大器，分别连接到gm放大器的指数乘法器，根据外部增益控制信号改变指数乘法器的乘法系数的控制部分，以及IV转换器电路 累加电流输出后乘以并将电流输出转换为电压。 可以在不使用衰减器的情况下获得连续可变增益特性，而是根据控制电压改变乘法系数。
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公开(公告)号：US07518112B2
公开(公告)日：2009-04-14
申请号：US11656478
申请日：2007-01-23
申请人： Takashi Matsumoto , Satoshi Hanazawa , Toshihiko Moriwaki , Masakazu Ishibashi , Naruaki Kiriki
发明人： Takashi Matsumoto , Satoshi Hanazawa , Toshihiko Moriwaki , Masakazu Ishibashi , Naruaki Kiriki
IPC分类号： G01J5/06
CPC分类号： G01T1/247 , H01L2224/05554 , H01L2224/48091 , H01L2224/49175 , H01L2924/00014
摘要： A radiation detection circuit having a multi-channel input used for radiation measurement and capable of canceling cross-talk noise generated from a logic circuit for controlling a channel and enabling low noise radiation measurement easily and precisely. The radiation detection circuit also generates an inverted signal for each of input/output signals needed for controlling its logic and cancels a noise charge generated by coupled capacity between a bonding wire (analog input side in IC package) for connecting its output to another radiation detection circuit and a bonding wire of each of input/output signals of the logic control circuit by generating an inverted noise charge with coupled capacity between the inverted signal and its output when in logic controlling, thereby suppressing the cross-talk noise generated by each of its input/output signals.
摘要翻译： 一种辐射检测电路，具有用于辐射测量的多通道输入，并且能够抵消从用于控制通道的逻辑电路产生的串扰噪声并且能够容易且精确地实现低噪声辐射测量。 辐射检测电路还为控制其逻辑所需的每个输入/输出信号产生反相信号，并且消除由接合线（IC封装中的模拟输入端）之间的耦合容量产生的噪声电荷，以将其输出连接到另一辐射检测 电路和逻辑控制电路的每个输入/输出信号的接合线，通过在逻辑控制中产生反相信号与其输出之间的耦合容量的反相噪声电荷，从而抑制由其中的每一个产生的串扰噪声 输入/输出信号。
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公开(公告)号：US20070228279A1
公开(公告)日：2007-10-04
申请号：US11656478
申请日：2007-01-23
申请人： Takashi Matsumoto , Satoshi Hanazawa , Toshihiko Moriwaki , Masakazu Ishibashi , Naruaki Kiriki
发明人： Takashi Matsumoto , Satoshi Hanazawa , Toshihiko Moriwaki , Masakazu Ishibashi , Naruaki Kiriki
IPC分类号： G01T1/00
CPC分类号： G01T1/247 , H01L2224/05554 , H01L2224/48091 , H01L2224/49175 , H01L2924/00014
摘要： A radiation detection circuit having a multi-channel input used for radiation measurement and capable of canceling cross-talk noise generated from a logic circuit for controlling a channel and enabling low noise radiation measurement easily and precisely. The radiation detection circuit also generates an inverted signal for each of input/output signals needed for controlling its logic and cancels a noise charge generated by coupled capacity between a bonding wire (analog input side in IC package) for connecting its output to another radiation detection circuit and a bonding wire of each of input/output signals of the logic control circuit by generating an inverted noise charge with coupled capacity between the inverted signal and its output when in logic controlling, thereby suppressing the cross-talk noise generated by each of its input/output signals.
摘要翻译： 一种辐射检测电路，具有用于辐射测量的多通道输入，并且能够抵消从用于控制通道的逻辑电路产生的串扰噪声并且能够容易且精确地实现低噪声辐射测量。 辐射检测电路还为控制其逻辑所需的每个输入/输出信号产生反相信号，并且消除由接合线（IC封装中的模拟输入端）之间的耦合容量产生的噪声电荷，以将其输出连接到另一辐射检测 电路和逻辑控制电路的每个输入/输出信号的接合线，通过在逻辑控制中产生反相信号与其输出之间的耦合容量的反相噪声电荷，从而抑制由其中的每一个产生的串扰噪声 输入/输出信号。
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