公开(公告)号：US06906524B2

公开(公告)日：2005-06-14

申请号：US10647227

申请日：2003-08-26

申请人： Wen-Yaw Chung ,  Alfred Krzyskow ,  Yeong-Tsair Lin ,  Dorota Genowefa Pijanowska ,  Chung-Huang Yang ,  Wladyslaw Torbicz

发明人： Wen-Yaw Chung ,  Alfred Krzyskow ,  Yeong-Tsair Lin ,  Dorota Genowefa Pijanowska ,  Chung-Huang Yang ,  Wladyslaw Torbicz

IPC分类号： G01N27/414 ,  G01N27/62

CPC分类号： G01N27/4148

摘要： An ion sening circuit comprises a bridge sensing circuit and a differential amplifying circuit. The bridge sensing circuit detects the ion concentration of the solution in the operation mode of constant voltage and constant current. The differential amplifying circuit compares the output of the bridge sensing circuit and a floating reference voltage, thereby the delivered voltage to the bridge sensing circuit, such that the opeation mode of constant voltage and constant current is formed accordingly. The main features of the disclosed circuit are that it grounds the reference electrode and floats the source terminal. The drawbacks of not being manufactured with intergrated circuits by CMOS technology and low benefits when applied to sensor arrays are avoided by the disclosed circuit.

摘要翻译： 离子振荡电路包括桥接感测电路和差分放大电路。 桥式感测电路在恒定电压和恒定电流的工作模式下检测溶液的离子浓度。 差分放大电路将桥接检测电路的输出和浮动参考电压进行比较，从而将输出的电压与桥接器检测电路进行比较，从而相应地形成恒定电压和恒定电流的运行模式。 所公开的电路的主要特征是它使参考电极接地并漂移源极端子。 所公开的电路避免了不采用CMOS技术制造集成电路和应用于传感器阵列的优点的缺点。

公开(公告)号：US07368917B2

公开(公告)日：2008-05-06

申请号：US11450456

申请日：2006-06-12

申请人： Wen-Yaw Chung ,  Chung-Huang Yang ,  Dorota Genowefa Pijanowska ,  Piotr Grabiec ,  Bohdan Jaroszewicz ,  Wladyslaw Torbicz

发明人： Wen-Yaw Chung ,  Chung-Huang Yang ,  Dorota Genowefa Pijanowska ,  Piotr Grabiec ,  Bohdan Jaroszewicz ,  Wladyslaw Torbicz

IPC分类号： G01N27/62

CPC分类号： G01N27/4148

摘要： An electronic circuit for ion sensor with the body effect reduction includes a bridge-type floating source circuit provided with an input terminal, an output terminal reflecting the change in the potential dependent on ion concentration, and an ion-sensitive field effect transistor (ISFET) wherein one terminal of the ISFET is coupled with the output terminal; a current mirror for providing a current to the bridge-type circuit; a third transistor for receiving the operating current provided by the current mirror, identical to the current provided to the ISFET; a differential amplifying circuit, wherein one input terminal of the amplifying circuit is input with a reference voltage, and the other input terminal is coupled with the output of the bridge-type readout circuit; and a third amplifier to generate a differential output voltage compensated for the body effect, temperature and time drift effects.

摘要翻译： 具有体效应降低的离子传感器的电子电路包括具有输入端子的桥式浮动源电路，反映离子浓度的电位变化的输出端子以及离子敏感场效应晶体管（ISFET） 其中所述ISFET的一个端子与所述输出端子耦合; 用于向桥式电路提供电流的电流镜; 用于接收由电流镜提供的工作电流的第三晶体管，与提供给ISFET的电流相同; 差分放大电路，其中放大电路的一个输入端子以参考电压输入，另一个输入端子与桥式读出电路的输出端相连; 以及第三放大器，以产生补偿体效应，温度和时间漂移效应的差分输出电压。

公开(公告)号：US20070089988A1

公开(公告)日：2007-04-26

申请号：US11450456

申请日：2006-06-12

申请人： Wen-Yaw Chung ,  Chung-Huang Yang ,  Dorota Genowefa Pijanowska ,  Piotr Grabiec ,  Bohdan Jaroszewicz ,  Wladyslaw Torbicz

发明人： Wen-Yaw Chung ,  Chung-Huang Yang ,  Dorota Genowefa Pijanowska ,  Piotr Grabiec ,  Bohdan Jaroszewicz ,  Wladyslaw Torbicz

IPC分类号： G01N27/26

CPC分类号： G01N27/4148

摘要： An electronic circuit for ion sensor with the body effect reduction includes a bridge-type floating source circuit provided with an input terminal, an output terminal reflecting the change in the potential dependent on ion concentration, and an ion-sensitive field effect transistor (ISFET) wherein one terminal of the ISFET is coupled with the output terminal; a current mirror for providing a current to the bridge-type circuit; a third transistor for receiving the operating current provided by the current mirror, identical to the current provided to the ISFET; a differential amplifying circuit, wherein one input terminal of the amplifying circuit is input with a reference voltage, and the other input terminal is coupled with the output of the bridge-type readout circuit; and a third amplifier to generate a differential output voltage compensated for the body effect, temperature and time drift effects.

摘要翻译： 具有体效应降低的离子传感器的电子电路包括具有输入端子的桥式浮动源电路，反映离子浓度的电位变化的输出端子以及离子敏感场效应晶体管（ISFET） 其中所述ISFET的一个端子与所述输出端子耦合; 用于向桥式电路提供电流的电流镜; 用于接收由电流镜提供的工作电流的第三晶体管，与提供给ISFET的电流相同; 差分放大电路，其中放大电路的一个输入端子以参考电压输入，另一个输入端子与桥式读出电路的输出端相连; 以及第三放大器，以产生补偿体效应，温度和时间漂移效应的差分输出电压。

公开(公告)号：US07663357B2

公开(公告)日：2010-02-16

申请号：US11945365

申请日：2007-11-27

申请人： Wen-Yaw Chung ,  Tsai-Tseng Kuo ,  Ying-Hsian Wang ,  Dorota Genowefa Pijanowska ,  Wladyslaw Torbicz

发明人： Wen-Yaw Chung ,  Tsai-Tseng Kuo ,  Ying-Hsian Wang ,  Dorota Genowefa Pijanowska ,  Wladyslaw Torbicz

IPC分类号： G01N27/00 ,  G01N27/404

CPC分类号： G01N27/3273

摘要： A signal readout circuit for amperometric sensor for reading a readout signal of a sensor includes an amplifier, a first transistor, a second transistor, and a first resistor. A negative input end of the amplifier receives an input voltage, and a positive input end of the amplifier is connected to a reference electrode of the sensor. Gates of the first transistor and the second transistor are connected to an output end of the amplifier, a drain of the first transistor is connected to a counter electrode of the sensor, and a drain of the second transistor is connected to the first resistor.

摘要翻译： 用于读取传感器的读出信号的电流传感器的信号读出电路包括放大器，第一晶体管，第二晶体管和第一电阻器。 放大器的负输入端接收输入电压，放大器的正输入端连接到传感器的参考电极。 第一晶体管和第二晶体管的栅极连接到放大器的输出端，第一晶体管的漏极连接到传感器的对电极，第二晶体管的漏极连接到第一电阻器。

公开(公告)号：US20080169800A1

公开(公告)日：2008-07-17

申请号：US11945365

申请日：2007-11-27

申请人： Wen-Yaw Chung ,  Tsai-Tseng Kuo ,  Ying-Hsian Wang ,  Dorota Genowefa Pijanowska ,  Wladyslaw Torbicz

发明人： Wen-Yaw Chung ,  Tsai-Tseng Kuo ,  Ying-Hsian Wang ,  Dorota Genowefa Pijanowska ,  Wladyslaw Torbicz

IPC分类号： G01N27/00

CPC分类号： G01N27/3273

摘要： A signal readout circuit for amperometric sensor for reading a readout signal of a sensor includes an amplifier, a first transistor, a second transistor, and a first resistor. A negative input end of the amplifier receives an input voltage, and a positive input end of the amplifier is connected to a reference electrode of the sensor. Gates of the first transistor and the second transistor are connected to an output end of the amplifier, a drain of the first transistor is connected to a counter electrode of the sensor, and a drain of the second transistor is connected to the first resistor.

摘要翻译： 用于读取传感器的读出信号的电流传感器的信号读出电路包括放大器，第一晶体管，第二晶体管和第一电阻器。 放大器的负输入端接收输入电压，放大器的正输入端连接到传感器的参考电极。 第一晶体管和第二晶体管的栅极连接到放大器的输出端，第一晶体管的漏极连接到传感器的对电极，第二晶体管的漏极连接到第一电阻器。