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2. 发明公开

EP2982996A1 DUMMY LOAD CIRCUIT AND CHARGE DETECTION CIRCUIT 有权
标题翻译：虚电路负载电路和电荷检测电路
公开(公告)号：EP2982996A1
公开(公告)日：2016-02-10
申请号：EP14778279.1
申请日：2014-03-26
申请人： Murata Manufacturing Co., Ltd.
发明人： TAKASE, Yasuhide
IPC分类号： G01R29/24 , H01L21/822 , H01L27/04
CPC分类号： H03F1/301 , G01R29/24 , H03F3/70 , H03F2200/528 , H03K17/6871
摘要： A pseudo resistor circuit and a charge amplifier each include a first field effect transistor (Ma); a second field effect transistor (Mb) having electrical characteristics matched with electrical characteristics of the first field effect transistor (Ma); a voltage dividing circuit (21) in which one terminal of a reference resistor (Rstd) is electrically connected to a source terminal of the second field effect transistor; a first operational amplifier (OP1) an output terminal of which is connected to a gate terminal of the first field effect transistor and a gate terminal of the second field effect transistor and in which midpoint voltage of the voltage dividing circuit is input into one of an inverting input terminal and a non-inverting input terminal and reference voltage is input into the other of the inverting input terminal and the non-inverting input terminal; and a second operational amplifier (OP2) that supplies voltage resulting from inversion and amplification of drain voltage of the first field effect transistor into the other terminal of the reference resistor.
摘要翻译：伪电阻电路和电荷放大器均包括第一场效应晶体管（Ma）; 具有与所述第一场效应晶体管（Ma）的电特性相匹配的电特性的第二场效应晶体管（Mb）; 分压电路（21），其中参考电阻器（Rstd）的一个端子电连接到所述第二场效应晶体管的源极端子; 第一运算放大器（OP1），其输出端连接到第一场效应晶体管的栅极端和第二场效应晶体管的栅极端，并且其中分压电路的中点电压被输入到非反相输入端子和非反相输入端子，并且参考电压输入到反相输入端子和非反相输入端子中的另一个; 以及第二运算放大器（OP2），其将所述第一场效应晶体管的漏极电压的反转放大后的电压供给到所述基准电阻的另一端。

3. 发明公开

EP2648334A1 Mems device front-end charge amplifier 有权
标题翻译：前端 - Ladungsverstärkereiner MEMS-Vorrichtung
公开(公告)号：EP2648334A1
公开(公告)日：2013-10-09
申请号：EP13001721.3
申请日：2013-04-04
申请人： Fairchild Semiconductor Corporation
发明人： Opris, Ion , Tao, Hai , Lee, Shungneng
IPC分类号： H03F3/70 , H03F1/34 , H03F3/45 , G01C19/5726
CPC分类号： H03F1/00 , G01C19/5776 , G01P9/04 , H02N1/00 , H03F1/34 , H03F3/45475 , H03F3/70 , H03F2200/294
摘要： This document discusses, among other things, apparatus and methods for a front-end charge amplifier. In certain examples, a front-end charge amplifier for a microelectromechanical system (MEMS) device can include a charge amplifier configured to couple to the MEMS device and to provide sense information of a proof mass of the MEMS device, a feedback circuit configured to receive the sense information and to provide feedback to an input of the charge amplifier, and wherein the charge amplifier includes a transfer function having a first pole at a first frequency, a second pole at a second frequency, and one zero at a third frequency.
摘要翻译：本文件尤其讨论了前端电荷放大器的装置和方法。在某些示例中，用于微机电系统（MEMS）器件的前端电荷放大器可以包括配置成耦合到MEMS器件并且提供MEMS器件的校验质量的感测信息的电荷放大器，被配置为接收所述感测信息并且向所述电荷放大器的输入提供反馈，并且其中所述电荷放大器包括传递函数，所述传递函数具有在第一频率的第一极点，在第二频率具有第二极点，在第三频率处具有一个零点的传递函数。

4. 发明公开

EP2504920A1 DIGITALER LADUNGSVERSTÄRKER UND VERFAHREN ZUM WANDELN VON LADUNGSSIGNALEN IN DIGITALE SIGNALE 有权
标题翻译：数字电荷放大器和方法电荷在数转换信号信号
公开(公告)号：EP2504920A1
公开(公告)日：2012-10-03
申请号：EP10785316.0
申请日：2010-11-18
申请人： Kistler Holding AG
发明人： AMSTUTZ, Leo , NEFF, Kurt , OTTER, Daniel
IPC分类号： H03F1/30 , H03F3/70 , H03K7/06 , G01L1/16
CPC分类号： H03F3/70 , G01L1/16 , G01L9/08 , H03F1/304
摘要： The invention relates to a charge amplifier circuit for converting positive and negative charge signals Q that are output by a piezoelectric measuring element into a digital signal D that is proportional to the present measured value at the measuring element. The circuit comprises a charge amplifier V1 having a charge input and a voltage output for converting detected charge Q into voltage U2, wherein a compensation circuit K comprising two outputs is connected downstream of the voltage output of the charge amplifier V1 and wherein the first output is connected to the charge input of the charge amplifier V1 and the second output is connected to a counter Z having two inputs Z+ and Z-. On the one hand, the compensation circuit K can produce a compensation charge Qk+ or Qk- that is proportional to the voltage U2 and that can be sent to the charge input of the charge amplifier V1 by means of the first output in order to compensate the input signal Q, and on the other hand, the compensation circuit can produce a number of pulses P+, P1 that is proportional to the magnitude of each compensation charge Qk+ or Qk- produced. Said pulses can be sent to an input Z-, Z+ of the counter Z opposite the sign of the particular compensation charge Qk+ or Qk- by means of the second output, wherein the desired digital signal D, which is proportional to the sum of the charge quanta input beforehand, is available at the output of the counter Z. The invention further relates to a method that is performed on such a circuit.

5. 发明授权

EP2153520B1 BUFFER DRIVER 有权
标题翻译： PUFFERTREIBER
公开(公告)号：EP2153520B1
公开(公告)日：2012-07-11
申请号：EP08750147.4
申请日：2008-05-07
申请人： TEXAS INSTRUMENTS DEUTSCHLAND GMBH
发明人： RUCK, Bernhard Wolfgang
IPC分类号： G09G3/18 , H03F3/30 , H03F3/70 , H03F3/45
CPC分类号： H03F3/45183 , G09G3/18 , G09G2330/02 , H03F3/3023 , H03F3/70 , H03F2203/45112 , H03F2203/45292 , H03F2203/45366 , H03F2203/45551
摘要： The present invention relates to a CMOS buffer circuit for liquid crystal display (LCD) drivers, which includes a single stage operational transconductance amplifier (OTA) with a differential of transistors for receiving a differential input voltage, a bias current source coupled to the differential pair and a single-ended output, the first bias current generating stage with a differential pair of transistors coupled to receive the differential input voltage to produce an output current in an output current path in response to a positive differential input voltage, a second bias current generating stage with a differential pair of transistors coupled to receive the inverted differential input voltage to produce an output current in an output current path in response to a negative input voltage, wherein the output current paths of both bias current generating stages are combined in a common current path and the current in the common current path is mirrored to the bias current source of the single stage OTA, so as to increase the bias current through the bias current source in response to an increasing magnitude of the differential input voltage.

6. 发明公开

EP2100165A1 ANORDNUNG UND VERFAHREN ZUR LADUNGSINTEGRATION 有权
标题翻译： ANORDNUNG UND VERFAHREN ZUR LADUNGSENEGRATION
公开(公告)号：EP2100165A1
公开(公告)日：2009-09-16
申请号：EP07847467.3
申请日：2007-11-28
申请人： Austriamicrosystems AG
发明人： FITZI, Andreas
IPC分类号： G01T1/00 , H03K3/011
CPC分类号： G06G7/184 , H03F3/70
摘要： A charge integration system comprises an input (1) for supplying a charge-dependent signal and an integrator (30) for integrating a signal that is applied to the input side. A coupling circuit (20) which can assume at least two operating states for coupling the input (1) to the integrator (30) has a temperature-dependent coupling behavior. A correction circuit (10) can be operated in a clocked manner and is coupled to the input (1) for transferring an amount of charge. Said correction circuit has a temperature behavior that is derived from the coupling behavior of the coupling circuit (20).
摘要翻译：电荷积分系统包括用于提供电荷相关信号的输入（1）和用于积分施加到输入侧的信号的积分器（30）。能够采取用于将输入（1）耦合到积分器（30）的至少两个操作状态的耦合电路（20）具有取决于温度的耦合行为。校正电路（10）可以以时钟方式操作并且耦合到输入（1）以传送一定量的电荷。所述校正电路具有从耦合电路（20）的耦合行为导出的温度行为。

7. 发明公开

EP2077616A1 Transistor output circuit and method 审中-公开
标题翻译：晶体管 - Ausgangsschaltung和Verfahren
公开(公告)号：EP2077616A1
公开(公告)日：2009-07-08
申请号：EP08170947.9
申请日：2008-12-08
申请人： TPO Displays Corp.
发明人： Edwards, Martin John , Bramante, Nicola
IPC分类号： H03F1/08 , H03F3/00 , H03F3/70
CPC分类号： H03F3/005 , H03F1/083 , H03F3/70
摘要： A transistor circuit comprises a first output transistor (10); a second output, transistor (12), the first and second output transistors arranged for providing an output to a common output of the transistor circuit; and a switch arrangement (16) for selectively coupling the output of the first (10) and then the second output transistor (12) to the common output, wherein the first and second output transistors are controlled to provide the same steady state output. The switch arrangement (16) is adapted such that when the output of the first output transistor (10) is coupled to the common output, changes in drive conditions of the first output transistor (10) are isolated from the second output transistor (12).
摘要翻译：晶体管电路包括第一输出晶体管（10）; 第二输出晶体管（12），所述第一和第二输出晶体管被布置为向所述晶体管电路的公共输出提供输出; 以及用于选择性地将第一（10）的输出和第二输出晶体管（12）的输出耦合到公共输出的开关装置（16），其中第一和第二输出晶体管被控制以提供相同的稳态输出。开关装置（16）适于使得当第一输出晶体管（10）的输出耦合到公共输出端时，第一输出晶体管（10）的驱动条件的变化与第二输出晶体管（12）隔离，。

8. 发明授权

EP0325383B1 Charge amplifier circuit comprising a junction field effect transistor 失效
标题翻译：包含功能场效应晶体管的充电放大器电路
公开(公告)号：EP0325383B1
公开(公告)日：1993-10-06
申请号：EP89300335.0
申请日：1989-01-13
申请人： LINK ANALYTICAL LIMITED
发明人： Nashashibi, Tawfic Saeb
IPC分类号： H01L29/80 , H03F3/70
CPC分类号： H01L29/0603 , H01L29/7392 , H01L29/808 , H03F3/70

9. 发明授权

EP0379671B1 Noise reduction for photodiode arrays 失效
标题翻译：噪声减少光电子阵列
公开(公告)号：EP0379671B1
公开(公告)日：1993-09-01
申请号：EP89121724.2
申请日：1989-11-24
申请人： Hewlett-Packard Company
发明人： Smisko, J. Daniel
IPC分类号： G01J1/44
CPC分类号： H04N5/3575 , G11C7/005 , H03F3/087 , H03F3/70 , H04N5/363 , H04N5/374 , H04N5/378

10. 发明公开

EP0379671A2 Noise reduction for photodiode arrays 失效
标题翻译： RauschverminderungfürPhotodiodenanordnungen。
公开(公告)号：EP0379671A2
公开(公告)日：1990-08-01
申请号：EP89121724.2
申请日：1989-11-24
申请人： Hewlett-Packard Company
发明人： Smisko, J. Daniel
IPC分类号： G01J1/44
CPC分类号： H04N5/3575 , G11C7/005 , H03F3/087 , H03F3/70 , H04N5/363 , H04N5/374 , H04N5/378
摘要： A method and apparatus for reducing noise in a light sensing circuit having a photodiode array (80) coupled to a charge amplifier (85) through a field effect transistor transfer switch (116). Thermal noise generated by the transfer switch (116) is combined with image signals inputted to the charge amplifier (85) resulting in an outputted noisy image signal. The invention eliminates this noise by taking two consecutive readings of the charge amplifier output, one before and one after closing the transfer switch (116) and after opening it. The thermal noise generated by the transfer switch (116), and added to the next reading of the charge amplifier output, is equal to the difference between these two readings. Once stored, this difference can be subtracted from the previously mentioned "next reading", resulting in the elimination of this noise term.
摘要翻译：一种用于降低光感测电路中的噪声的方法和装置，其具有通过场效应晶体管转换开关（116）耦合到电荷放大器（85）的光电二极管阵列（80）。由转换开关（116）产生的热噪声与输入到电荷放大器（85）的图像信号组合，导致输出的噪声图像信号。本发明通过将电荷放大器输出的两个连续的读数，一个在关闭转移开关（116）之前和之后以及在打开它之后来消除这种噪声。由转移开关（116）产生并加到电荷放大器输出的下一个读数的热噪声等于这两个读数之间的差值。一旦存储，可以从先前提到的“下一读”中减去该差异，导致消除该噪声项。

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