CHARGE SENSING AMPLIFIER CIRCUIT FOR COMPENSATING FOR DC LEAKAGE CURRENT, AND X-RAY READOUT INTEGRATED CIRCUIT AND X-RAY SENSOR USING SAME
    11.
    发明申请
    CHARGE SENSING AMPLIFIER CIRCUIT FOR COMPENSATING FOR DC LEAKAGE CURRENT, AND X-RAY READOUT INTEGRATED CIRCUIT AND X-RAY SENSOR USING SAME 审中-公开
    用于补偿直流漏电流的充电感应放大器电路,以及使用相同的X射线读出集成电路和X射线传感器

    公开(公告)号:WO2012036496A2

    公开(公告)日:2012-03-22

    申请号:PCT/KR2011006836

    申请日:2011-09-16

    CPC classification number: H03F3/087 H03F3/45475 H03F2203/45526

    Abstract: A charge sensing circuit according to the present invention includes a photodiode, an operational amplifier, a feedback capacitor, a leakage path transistor for allowing DC leakage current to flow from the photodiode, and a current generating unit for providing drive current. Since a drain and a source are connected between the photodiode and a negative input terminal of the operational amplifier and a power source, and also connected to allow a gate voltage to be determined by the voltage at both ends of a current source transistor where some of the drive current flows and a compensation capacitor, the leakage path transistor may effectively leak a DC leakage current occurring at the photodiode. The current generating unit may stably generate drive current against voltage and temperature variation because it includes a source degeneration resistance.

    Abstract translation: 根据本发明的电荷感测电路包括光电二极管,运算放大器,反馈电容器,用于允许DC漏电流从光电二极管流出的泄漏路径晶体管,以及用于提供驱动电流的电流产生单元。 由于漏极和源极连接在运算放大器和电源的光电二极管和负输入端之间,并且还连接以允许栅极电压由电流源晶体管两端的电压确定,其中一些 驱动电流流过补偿电容器,泄漏路径晶体管可能有效地泄漏在光电二极管处发生的直流泄漏电流。 电流发生单元可以稳定地产生抵抗电压和温度变化的驱动电流,因为它包括源极退化电阻。

    CHARGE PUMP FOR GENERATING AN INPUT VOLTAGE FOR AN OPERATIONAL AMPLIFIER
    12.
    发明申请
    CHARGE PUMP FOR GENERATING AN INPUT VOLTAGE FOR AN OPERATIONAL AMPLIFIER 审中-公开
    用于产生运算放大器的输入电压的充电泵

    公开(公告)号:WO2008135531A1

    公开(公告)日:2008-11-13

    申请号:PCT/EP2008/055419

    申请日:2008-05-02

    Abstract: A charge pump for generating an input voltage for an operational amplifier includes a storage capacitor for storing a charge pump voltage and a flying capacitor configured to be charged during a first phase of operation and discharged during a second phase of operation. As the flying capacitor is discharged, it charges the storage capacitor. A current source is coupled to the flying capacitor and a switching means is provided for switching current from the current source through the flying capacitor in a first direction during the first phase and in a second direction opposite to the first direction during the second phase.

    Abstract translation: 用于产生用于运算放大器的输入电压的电荷泵包括用于存储电荷泵电压的存储电容器和构造成在第一操作阶段期间被充电并在第二操作阶段期间被放电的飞跨电容器。 当飞溅电容器放电时,它对存储电容器充电。 电流源耦合到飞跨电容器,并且提供开关装置,用于在第一阶段期间沿着第一方向从第一方向切换来自电流源的电流,并且在第二阶段期间沿与第一方向相反的第二方向切换电流。

    A DUAL INTEGRATOR SYSTEM
    13.
    发明申请

    公开(公告)号:WO2020257392A1

    公开(公告)日:2020-12-24

    申请号:PCT/US2020/038338

    申请日:2020-06-18

    Abstract: A dual integrator system (200) comprises two integrators (220A-B), an output stage (270), and a switching network (240 A-D). The first and second integrators receive a differential Hall sensor signal (205, 210) and a reference voltage (210). The first integrator outputs a first integrator signal (225A) based on the differential Hall sensor and the reference voltage. The second integrator outputs a second integrator signal (225B) based on the differential Hall sensor signal and the reference voltage. The first integrator comprises a first offset cancellation feedback loop (235 A), and the second integrator comprises a second offset cancellation feedback loop (235B). The switching network is coupled to the first and second integrators and to the output stage, and alternates which of the first and second integrators is coupled to the output stage. In some embodiments, the first and second integrators each perform a reset operation, a sampling operation, an integration operation, a differential to single-ended conversion operation, and a holding operation.

    CHARGE PREAMPLIFIER DEVICE AND RADIATION DETECTING APPARATUS COMPRISING THE DEVICE

    公开(公告)号:WO2020109924A1

    公开(公告)日:2020-06-04

    申请号:PCT/IB2019/059931

    申请日:2019-11-19

    Abstract: A charge preamplifier device (100) integrated in a chip (200) of semiconductive material comprising: an input (IN) for an input signal (ii N ) and an output (OUT) for an output signal ( VOUT ); a substrate (202) of semiconductive material doped according to a first type of conductivity; an electrically insulating layer (204) placed on said substrate (202); a feedback capacitor (C f ) integrated in the chip (200) and comprising a first electrode (3) connected to the input (IN) and a second electrode (2) connected to the output (OUT). The second electrode (2) is formed by a doped conductive region (205) having a second type of conductivity, opposite to the first type of conductivity, and integrated in the substrate (202) in order to face the first electrode (3).

    APPLYING A POSITIVE FEEDBACK VOLTAGE TO AN ELECTROMECHANICAL SENSOR UTILIZING A VOLTAGE-TO-VOLTAGE CONVERTER TO FACILITATE A REDUCTION OF CHARGE FLOW IN SUCH SENSOR REPRESENTING SPRING SOFTENING

    公开(公告)号:WO2020036702A1

    公开(公告)日:2020-02-20

    申请号:PCT/US2019/042092

    申请日:2019-07-16

    Abstract: Reducing a sensitivity of an electromechanical sensor is presented herein. The electromechanical sensor comprises a sensitivity with respect to a variation of a mechanical-to-electrical gain of a sense element of the electromechanical sensor; and a voltage-to-voltage converter component that minimizes the sensitivity by coupling, via a defined feedback capacitance, a positive feedback voltage to a sense electrode of the sense element - the sense element electrically coupled to an input of the voltage-to-voltage converter component. In one example, the voltage-to-voltage converter component minimizes the sensitivity by maintaining, via the defined feedback capacitance, a constant charge at the sense electrode. In another example, the electromechanical sensor comprises a capacitive sense element comprising a first node comprising the sense electrode. Further, a bias voltage component can apply a bias voltage to a second node of the electromechanical sensor. In yet another example, the electromechanical sensor comprises a piezoelectric sense element.

    RESISTORLESS CHARGE SENSITIVE PREAMPLIFIER SYSTEM
    16.
    发明申请
    RESISTORLESS CHARGE SENSITIVE PREAMPLIFIER SYSTEM 审中-公开
    无阻力充电敏感性前置放大器系统

    公开(公告)号:WO2017039466A1

    公开(公告)日:2017-03-09

    申请号:PCT/PL2015/050036

    申请日:2015-09-03

    Abstract: The present invention relates to the resistorless charge sensitive preamplifier system for amplifying charge delivered by a particle detector (Ge), comprising: a field effect transistor (T1) having a gate, source and drain, the gate being connectable to the particle detector (Ge), for the receipt a signal from particle detector (Ge); an amplifier (OA) having an input connected to the drain or source of the field effect transistor (T1) and an output connected through a feedback capacitor (CF) to the gate of the field effect transistor (T1), in which system further comprising low frequency feedback realized with a field effect transistor (T2) having gate shorted with gate of field effect transistor (T1).

    Abstract translation: 本发明涉及用于放大由粒子检测器(Ge)传送的电荷的无电阻电荷敏感性前置放大器系统,包括:具有栅极,源极和漏极的场效应晶体管(T1),栅极可连接到粒子检测器 ),用于接收来自粒子检测器(Ge)的信号; 具有连接到场效应晶体管(T1)的漏极或源极的输入端的放大器(OA)和通过反馈电容器(CF)连接到场效应晶体管(T1)的栅极的输出,其中系统还包括 利用场效应晶体管(T1)栅极短路的场效应晶体管(T2)实现的低频反馈。

    CURRENT STEERING IN HIGH SENSITIVITY TRANSIMPEDANCE AMPLIFIERS
    17.
    发明申请
    CURRENT STEERING IN HIGH SENSITIVITY TRANSIMPEDANCE AMPLIFIERS 审中-公开
    高灵敏度放电放大器的电流转向

    公开(公告)号:WO2016081898A1

    公开(公告)日:2016-05-26

    申请号:PCT/US2015/061981

    申请日:2015-11-20

    Applicant: GIGOPTIX, INC.

    Inventor: SHAW, Michael

    Abstract: The present invention relates to a linear, high sensitivity, high speed trans- impedance amplifier (TIA) which allows a large dynamic range of input current up to very large values, maintains high linearity and keeps constant output voltage, maintains the same frequency response across the full gain control range, provides very high input sensitivity and large bandwidth, and allows input current monitoring without affecting input sensitivity. In other words, the novel circuit disclosed herein provides for the feedback path to maintain the same level of feedback even while the output signal is varied. This allows a wide and stable bandwidth, as well as a monitor to be placed in the TIA.

    Abstract translation: 本发明涉及一种线性,高灵敏度,高速度的交流阻抗放大器(TIA),其允许输入电流的大动态范围达到非常大的值,保持高线性度并保持恒定的输出电压,保持相同的频率响应 全增益控制范围,提供非常高的输入灵敏度和大带宽,并且允许输入电流监测而不影响输入灵敏度。 换句话说,即使在输出信号变化时,这里公开的新颖电路也提供了反馈路径来保持相同的反馈电平。 这样可以实现宽带和稳定的带宽,以及将显示器放置在TIA中。

    演算増幅器及びこれを使用したチャージアンプ
    18.
    发明申请
    演算増幅器及びこれを使用したチャージアンプ 审中-公开
    使用相同的运算放大器和充电放大器

    公开(公告)号:WO2016031120A1

    公开(公告)日:2016-03-03

    申请号:PCT/JP2015/003500

    申请日:2015-07-10

    Inventor: 鈴木 健

    CPC classification number: H03F3/45 H03F3/70

    Abstract:  周波数特性をより高めて安定した演算増幅器及びこれを使用したチャージアンプを提供する。正極及び負極電源ライン間に並列接続した第1,第2のプッシュプル回路(11),(12)、これらの高電位側を接続し正極電源ラインに接続した第1,第2の電流電圧変換回路(13),(14)と、第1,第2のプッシュプル回路の低電位側を接続し負極電源ラインに接続した第3,第4の電流電圧変換回路(15),(16)、第1,第3の電流電圧変換回路の出力側が接続される第1の出力段(17)、第2,第4の電流電圧変換回路の出力側が接続される第2の出力段(18)、正極電源ライン及び負極電源ライン間に、同一極性のバイポーラトランジスタを接続した最終出力段(19)とを備え、最終出力段の高電位側のトランジスタのベースに第1の出力段の出力を供給し、最終出力段の低電位側のトランジスタのベースに第2の出力段の出力を供給する。

    Abstract translation: 本发明提供一种具有增强的频率特性的稳定的运算放大器,并且还提供使用该运算放大器的电荷放大器。 运算放大器包括:在正电源线和负电源线之间并联连接的第一和第二推挽电路(11),(12) 第一和第二电压/电压转换电路(13),(14),其中第一和第二推挽电路(11),(12)的较高电位侧被连接并连接到正电源线; 第三和第四电流/电压转换电路(15),(16),第一和第二推挽电路的下电位侧连接到其上并连接到负电源线; 连接第一和第三电流/电压转换电路的输出侧的第一输出级(17); 连接第二和第四电流/电压转换电路的输出侧的第二输出级(18); 以及其中具有相同极性的双极晶体管连接在正电源线和负电源线之间的最终输出级(19)。 来自第一输出级的输出被提供给最终输出级的较高电位侧的晶体管的基极,而来自第二输出级的输出被提供给最终输出级的低电位侧的晶体管的基极 输出阶段。

    増幅回路およびそれを備えた検出装置
    19.
    发明申请
    増幅回路およびそれを備えた検出装置 审中-公开
    放大电路和具有相同功能的检测装置

    公开(公告)号:WO2015053241A1

    公开(公告)日:2015-04-16

    申请号:PCT/JP2014/076746

    申请日:2014-10-07

    Abstract:  増幅回路は、電荷信号を電圧信号に変換する。電荷信号は、検出対象を検出する圧電素子から出力される検出結果を電荷量の変化で表す。電荷信号は、所定の周波数帯域の変位信号を含む。増幅回路は、電荷信号を受ける反転入力端子と、電圧信号を出力するための出力端子とを有するオペアンプと、反転入力端子と出力端子との間に電気的に接続された抵抗と、抵抗に並列に接続されたコンデンサとを備える。変位信号の周波数帯域において、抵抗のインピーダンスの絶対値がコンデンサのインピーダンスの絶対値よりも低くなるように、抵抗の抵抗値およびコンデンサの容量値は定められる。抵抗値と容量値との積に応じて決まるカットオフ周波数は、変位信号の周波数帯域よりも高く定められる。

    Abstract translation: 该放大电路将电荷信号转换为电压信号。 电荷信号表示从检测对象的检测用压电元件输出的检测结果作为电荷量的变化。 电荷信号包括规定频带的位移信号。 放大电路设置有用于接收电荷信号的反相输入端子,具有用于输出电压信号的输出端子的运算放大器,电连接在反相输入信号和输出端子之间的电阻,以及电容器 与电阻并联连接。 以电阻阻抗的绝对值低于电容器阻抗的绝对值的方式将电阻的电阻值和电容器的容量值设定在位移信号频带内。 根据电阻值和电容值的和确定的截止频率被设定为高于位移信号频带。

    スイッチトキャパシタ回路及びその駆動方法
    20.
    发明申请
    スイッチトキャパシタ回路及びその駆動方法 审中-公开
    开关电容器电路及其驱动方法

    公开(公告)号:WO2014083736A1

    公开(公告)日:2014-06-05

    申请号:PCT/JP2013/005765

    申请日:2013-09-27

    Inventor: 徳永 祐介

    Abstract:  本発明のスイッチトキャパシタ回路(300)は、第1端子と第2端子とを有し第1端子に入力電圧が印加されるように配置された容量(311)と、第3端子と第4端子とを有し第3端子が第2端子と接続された容量(321)と、第2入力端子と第2出力端子とを有し第2入力端子が第4端子と接続された反転増幅器(332)と、第5端子と第6端子とを有し第6端子が出力端子(208)に接続された容量(351)と、第7端子と第8端子とを有し第2出力端子と第5端子との電気経路上に配置された容量(341)と、第9端子と第10端子とを有し第9端子が第2端子に接続されるよう、かつ、第10端子が第6端子に接続されるように配置された容量(361)とを具備する。

    Abstract translation: 该开关电容器电路(300)具备:电容器(311),具有第一端子和第二端子,并且以将输入电压施加到第一端子的方式配置; 具有第三端子和第四端子的电容器(321),所述第三端子连接到所述第二端子; 具有第二输入端和第二输出端的反相放大器(332),所述第二输入端连接到第四端; 具有第五端子和第六端子的电容器(351),所述第六端子连接到输出端子(208); 电容器(341),其具有第七端子和第八端子,并且位于所述第二输出端子和所述第五端子之间的电气路径上; 以及具有第九端子和第十端子的电容器(361),并且以使得第九端子连接到第二端子的方式定位,并且第十端子连接到第六端子。

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