公开(公告)号：US20130076350A1

公开(公告)日：2013-03-28

申请号：US13609972

申请日：2012-09-11

申请人： Daisuke MURAOKA ,  Minoru ARIYAMA ,  Tomoki HIKICHI ,  Kentaro FUKAI

发明人： Daisuke MURAOKA ,  Minoru ARIYAMA ,  Tomoki HIKICHI ,  Kentaro FUKAI

IPC分类号： G01R33/02

CPC分类号： G01R33/072 ,  G01R33/0023

摘要： A magnetic sensor device for generating a logic output in accordance with a magnetic field intensity applied to a magnetoelectric conversion element includes: a comparator for inputting amplified output signals of the magnetoelectric conversion element, and outputting a comparison result; and a logic circuit for performing arithmetic processing on an output signal of the comparator. Only when the logic output is changed by a change in the magnetic field intensity, the logic circuit performs successive matching determination of logic outputs a plurality of times. Thus, the variation in determination for detection or canceling of a magnetic field intensity, which is caused by noise generated from respective constituent elements included in the magnetic sensor device and external noise, may be reduced while suppressing electric power consumption.

摘要翻译： 用于根据施加到磁电转换元件的磁场强度产生逻辑输出的磁传感器装置包括：比较器，用于输入磁电转换元件的放大的输出信号，并输出比较结果; 以及用于对比较器的输出信号执行算术处理的逻辑电路。 只有当逻辑输出通过磁场强度的变化而变化时，逻辑电路多次执行逻辑输出的连续匹配确定。 因此，可以在抑制电力消耗的同时减小由磁传感器装置中包含的各构成要素产生的噪声和外部噪声引起的磁场强度的检测或取消的判断变化。

公开(公告)号：US08106646B2

公开(公告)日：2012-01-31

申请号：US12614924

申请日：2009-11-09

申请人： Minoru Ariyama

发明人： Minoru Ariyama

IPC分类号： G01R15/20 ,  G01R15/18 ,  G01R33/00

CPC分类号： H03K5/24 ,  G01R33/07

摘要： Provided is a sensor circuit that is small in circuit scale, but is capable of temperature compensation. A reference voltage circuit (BL1) which compensates a temperature includes only a voltage divider circuit, and hence the sensor circuit is small in circuit scale. The sensor circuit is also capable of temperature compensation because temperature changes of a reference voltage (VTH1) and a reference voltage (VTH2) match a temperature change of an output signal (OUTA) of an amplifier circuit (AMP1) which is caused by a temperature change of an output signal of a Hall element (HAL1).

摘要翻译： 提供了一种电路规模小但能够进行温度补偿的传感器电路。 补偿温度的参考电压电路（BL1）仅包括分压电路，因此传感器电路的电路规模小。 传感器电路还能够进行温度补偿，因为参考电压（VTH1）和参考电压（VTH2）的温度变化与放大器电路（AMP1）的输出信号（OUTA）的温度变化相匹配，这是由温度 霍尔元件（HAL1）的输出信号的改变。

公开(公告)号：US08093889B2

公开(公告)日：2012-01-10

申请号：US12614939

申请日：2009-11-09

申请人： Minoru Ariyama

发明人： Minoru Ariyama

IPC分类号： G01R33/00 ,  G01R15/20 ,  G01R15/18

CPC分类号： G01R33/0029 ,  G01R33/07

摘要： Provided is a sensor circuit that is small in circuit scale, but is capable of temperature compensation. A reference voltage circuit (BL1) which compensates a temperature includes only a voltage divider circuit, and hence the sensor circuit is small in circuit scale. The sensor circuit is also capable of temperature compensation because temperature changes of reference voltages (VTH11 and VTH12) and reference voltages (VTH21 and VTH22) match a temperature change of an output signal (OUTA) of an amplifier circuit (AMP1) which is caused by a temperature change of an output signal of a Hall element (HAL1).

摘要翻译： 提供了一种电路规模小但能够进行温度补偿的传感器电路。 补偿温度的参考电压电路（BL1）仅包括分压电路，因此传感器电路的电路规模小。 传感器电路还能够进行温度补偿，因为参考电压（VTH11和VTH12）和参考电压（VTH21和VTH22）的温度变化与放大器电路（AMP1）的输出信号（OUTA）的温度变化是否匹配，这是由 霍尔元件（HAL1）的输出信号的温度变化。

公开(公告)号：US20110133812A1

公开(公告)日：2011-06-09

申请号：US12961063

申请日：2010-12-06

申请人： Manabu Fujimura ,  Minoru Ariyama ,  Daisuke Muraoka ,  Tomoki Hikichi

发明人： Manabu Fujimura ,  Minoru Ariyama ,  Daisuke Muraoka ,  Tomoki Hikichi

IPC分类号： H03K17/16

CPC分类号： G01D3/08

摘要： Provided is a physical quantity sensor capable of improving physical quantity detection precision thereof. The physical quantity sensor includes a bridge resistance type physical quantity detection element for generating a voltage based on a bias current and a physical quantity, a current supply circuit for supplying the bias current to the physical quantity detection element, and a leakage current control circuit for causing leakage currents flowing when switches of the current supply circuit are in an off state to flow into a ground terminal.

摘要翻译： 提供能够提高物理量检测精度的物理量传感器。 物理量传感器包括用于产生基于偏置电流和物理量的电压的桥接电阻型物理量检测元件，用于向物理量检测元件提供偏置电流的电流供应电路和用于向物理量检测元件提供偏置电流的漏电流控制电路， 导致当电流供给电路的开关处于关闭状态时流入接地端子的漏电流。

公开(公告)号：US07956598B2

公开(公告)日：2011-06-07

申请号：US12192421

申请日：2008-08-15

申请人： Minoru Ariyama

发明人： Minoru Ariyama

IPC分类号： G05F3/16 ,  G05F3/20 ,  G01R33/06 ,  G01R33/02

CPC分类号： H03K17/9502 ,  H03K17/9517

摘要： To provide a variable voltage dividing circuit capable of changing voltage values of a detection point and a release point along with a change in power supply voltage without changing a hysteresis width. The variable voltage dividing circuit according to the present invention includes: a voltage dividing unit which includes a resistor string formed of a plurality of resistors connected in series, and outputs divided voltages divided at connection points of the plurality of resistors, one end of the resistor string being applied with a first voltage, another end thereof being applied with a second voltage; a first constant current source connected to a first connection point of the resistor string; and a second constant current source connected to a second connection point located symmetrically to the first connection point with respect to a center of the resistor string in the resistor string, in which, in accordance with a voltage difference between the first voltage and the second voltage, any one of the first constant current source and the second constant current source subtracts a first adjustment current from a current flowing through the resistor string, and another thereof feeds a second adjustment current to the resistor string.

摘要翻译： 提供一种能够改变检测点和释放点的电压值以及电源电压变化而不改变滞后宽度的可变分压电路。 根据本发明的可变分压电路包括：分压单元，其包括由串联连接的多个电阻器形成的电阻器串，并且输出在多个电阻器的连接点处分开的分压，电阻器的一端 串被施加第一电压，其另一端被施加第二电压; 连接到所述电阻串的第一连接点的第一恒流源; 以及第二恒流源，其连接到相对于电阻器串中的电阻器串的中心对称地位于第一连接点的第二连接点，其中，根据第一电压和第二电压之间的电压差 第一恒定电流源和第二恒定电流源中的任何一个从流过电阻串的电流中减去第一调整电流，另一个将第二调整电流馈送到电阻串。

公开(公告)号：US07479826B2

公开(公告)日：2009-01-20

申请号：US11499357

申请日：2006-08-04

申请人： Hirokazu Yoshizawa ,  Ryoichi Anzai ,  Toshiyuki Uchida ,  Minoru Ariyama ,  Atsushi Igarashi ,  Akira Takeda

发明人： Hirokazu Yoshizawa ,  Ryoichi Anzai ,  Toshiyuki Uchida ,  Minoru Ariyama ,  Atsushi Igarashi ,  Akira Takeda

IPC分类号： H03F1/02

CPC分类号： H03F3/45775

摘要： Provided is a chopper amplifier circuit capable of reducing an offset voltage of a sensor bridge and temperature characteristics of the offset voltage. An offset adjusting voltage generation circuit for generating a voltage equal to an offset voltage of a sensor bridge and an offset temperature characteristics adjusting voltage generation circuit for generating a voltage having temperature characteristics equal to those of the offset voltage are provided. These output voltages are chopper-modulated and subtracted from a chopper-modulated output signal of the sensor bridge.

摘要翻译： 提供了能够减小传感器桥的偏移电压和偏移电压的温度特性的斩波放大器电路。 提供了用于产生等于传感器桥的偏移电压的电压的偏移调整电压产生电路和用于产生具有等于偏移电压的温度特性的电压的偏移温度特性调整电压产生电路。 这些输出电压被斩波调制并从传感器桥的斩波调制输出信号中减去。