公开(公告)号：US5289721A

公开(公告)日：1994-03-01

申请号：US756223

申请日：1991-09-09

申请人： Yukihiko Tanizawa ,  Hiroshi Okada ,  Kazuhisa Ikeda ,  Tsuyoshi Fukada

发明人： Yukihiko Tanizawa ,  Hiroshi Okada ,  Kazuhisa Ikeda ,  Tsuyoshi Fukada

IPC分类号： G01L9/00 ,  G01L7/08 ,  G01L9/06

CPC分类号： G01L9/0042 ,  G01L9/0054 ,  Y10T29/49103

摘要： A semiconductor pressure sensor comprises a silicon substrate having a surface orientation of substantially (110), a diaphragm formed from the substrate, strain gauges disposed on the diaphragm, and a base joined with the substrate. The diaphragm has an octagonal shape whose sides are orthogonal to axis , , and , respectively. This sensor causes substantially no output error and no fluctuation between output characteristics of the strain gauges irrespective of a change in temperature.

摘要翻译： 半导体压力传感器包括具有基本上（110）的表面取向的硅衬底，由衬底形成的隔膜，设置在隔膜上的应变计和与衬底接合的基底。 隔膜具有八边形，其侧面分别与轴线<100>，<110>和<111>正交。 该传感器基本上不产生输出误差，并且不管温度变化如何，都不会产生应变计的输出特性之间的波动。

公开(公告)号：US07755346B2

公开(公告)日：2010-07-13

申请号：US11491985

申请日：2006-07-25

申请人： Yukihiko Tanizawa

发明人： Yukihiko Tanizawa

IPC分类号： G01R33/00

CPC分类号： H01F38/30 ,  G01R15/207 ,  G01R31/3606 ,  G01R31/3696 ,  H01M10/42 ,  H01R11/287 ,  H01R13/6683

摘要： A mounting structure for a current sensor is provided. The current sensor is arranged between a negative terminal of a battery and a grounding unit. The mounting structure includes a battery grounding cable which has one end connected with the negative terminal of the battery, and a fixing unit which is electrically conductive to electrically connect other end of the battery grounding cable with the grounding unit. The fixing unit and the battery grounding cable constructs a current path which connects the negative terminal with the grounding unit. The current sensor is fixed by the fixing unit to the grounding unit, and disposed to detect current flowing through the fixing unit.

摘要翻译： 提供了一种用于电流传感器的安装结构。 电流传感器布置在电池的负极和接地单元之间。 安装结构包括：电池接地电缆，其一端与电池的负极端子连接;以及固定单元，其导电以将电池接地电缆的另一端与接地单元电连接。 定影单元和电池接地电缆构成将负极端子与接地单元连接的电流路径。 电流传感器由固定单元固定到接地单元，并设置成检测流过定影单元的电流。

公开(公告)号：US07612699B2

公开(公告)日：2009-11-03

申请号：US12153218

申请日：2008-05-15

申请人： Yukihiko Tanizawa

发明人： Yukihiko Tanizawa

IPC分类号： H03M1/60

CPC分类号： H03M1/0678 ,  H03M1/1033 ,  H03M1/14 ,  H03M1/502 ,  H03M1/60

摘要： An A/D converter circuit uses first and second ring delay lines. The first and second ring delay lines are supplied with input signals, which increase/decrease oppositely from each other with respect to change directions. In each ring delay line, a first counter counts the number of times of circulation of a pulse signal circulating therein to find a digital data, and a last digital data is subtracted from a present digital data. By adding the resulting first and second digital data of the first and second ring delay lines, a digital data of the input voltage of linear characteristics is provided.

摘要翻译： A / D转换器电路使用第一和第二环延迟线。 第一和第二环形延迟线被提供有相对于改变方向彼此相反地增加/减少的输入信号。 在每个振铃延迟线中，第一计数器对循环中的脉冲信号的循环次数进行计数，以找到数字数据，并从当前的数字数据中减去最后的数字数据。 通过添加所得到的第一和第二环形延迟线的第一和第二数字数据，提供线性特性的输入电压的数字数据。

公开(公告)号：US20090096524A1

公开(公告)日：2009-04-16

申请号：US12285706

申请日：2008-10-14

申请人： Yukihiko Tanizawa

发明人： Yukihiko Tanizawa

IPC分类号： H03F3/45

CPC分类号： H03F3/45475 ,  G01R1/203 ,  G01R19/0023 ,  G01R19/0092 ,  G01R31/006 ,  H03F3/45928 ,  H03F2200/261 ,  H03F2200/462 ,  H03F2200/471 ,  H03F2203/45101 ,  H03F2203/45138 ,  H03F2203/45522 ,  H03F2203/45528 ,  H03F2203/45586 ,  H03F2203/45588 ,  H03F2203/45591 ,  H03F2203/45594 ,  H03G1/0088

摘要： A differential amplification circuit and a method corrects an offset voltage derived from a variance in resistances. With first and second input terminals brought to the same potential and set to a potential different from a reference potential, the resistance value of resistors is adjusted so that an output potential and the reference potential will be substantially equal to each other.

摘要翻译： 差分放大电路和方法校正由电阻方差导出的偏移电压。 由于第一和第二输入端子具有相同的电位并且被设定为与参考电位不同的电位，所以调节电阻器的电阻值，使得输出电位和参考电位彼此基本相等。

公开(公告)号：US20080174450A1

公开(公告)日：2008-07-24

申请号：US12010217

申请日：2008-01-22

申请人： Yukihiko Tanizawa

发明人： Yukihiko Tanizawa

IPC分类号： G08C19/16 ,  G08B29/00

CPC分类号： G01D5/246

摘要： A sensor circuit includes an analog-to-digital converter, a control circuit, a calculation circuit, and a pulse width modulation converter. The analog-to-digital converter converts an electric signal associated with a detected physical quantity to sensor data by sampling the electric signal a predetermined sampling number times per a predetermined sampling section. The control circuit determines the sampling number based on a magnitude of the electric signal. The calculation circuit calculates an average value of all the sensor data per the sampling section. The pulse width modulation converter generates a pulse width modulation signal having a pulse width corresponding to the average value.

摘要翻译： 传感器电路包括模数转换器，控制电路，计算电路和脉宽调制转换器。 模数转换器通过对每个预定采样部分的预定采样次数采样电信号，将与检测到的物理量相关联的电信号转换成传感器数据。 控制电路基于电信号的大小确定采样数。 计算电路计算每个采样部分的所有传感器数据的平均值。 脉冲宽度调制转换器产生具有对应于平均值的脉冲宽度的脉宽调制信号。

公开(公告)号：US20060028195A1

公开(公告)日：2006-02-09

申请号：US11183781

申请日：2005-07-19

申请人： Yukihiko Tanizawa

发明人： Yukihiko Tanizawa

IPC分类号： G01R15/18

CPC分类号： G01R15/202 ,  G01R19/16542

摘要： A current measuring device for detecting current flowing in a current path includes a magnetic sensor for detecting a magnetic field and a magnetic sensor for detecting earth magnetism, the magnetic field detecting magnetic sensor and the earth magnetism detecting magnetic sensor being disposed along the direction of magnetic flux induced by the current flowing in the current path, wherein an earth magnetism component detected by the magnetic field detecting magnetic sensor is canceled by using earth magnetism detected by the earth magnetism detecting magnetic sensor.

公开(公告)号：US06724202B2

公开(公告)日：2004-04-20

申请号：US09986313

申请日：2001-11-08

申请人： Yukihiko Tanizawa

发明人： Yukihiko Tanizawa

IPC分类号： G01R1710

CPC分类号： G01L1/2281 ,  G01D3/0365 ,  G01L9/065

摘要： First and second resistors (sensing elements) are connected in series between first and second potentials. The junction point voltage between the first and second resistor is supplied to an inverting input of a first operational amplifier. The non-inverting input is supplied with a reference voltage Vref generated by third and fourth resistors. A feedback resistor is connected between output and inverting input of the operational amplifier OP1. The difference between a temperature coefficient of resistance TCR of the sensing elements and a temperature coefficient of sensitivity TCS is equalized to a temperature coefficient of resistance of the feedback resistor. Further, the reference voltage is unchanged in accordance with the detected physical quantity or temperature variation.

摘要翻译： 第一和第二电阻（感测元件）在第一和第二电位之间串联连接。 第一和第二电阻之间的接点电压被提供给第一运算放大器的反相输入端。 非反相输入端被提供有由第三和第四电阻器产生的参考电压Vref。 反馈电阻连接在运算放大器OP1的输出和反相输入端之间。 感测元件的电阻TCR的温度系数与灵敏度TCS的温度系数之间的差值与反馈电阻器的电阻的温度系数相等。 此外，参考电压根据检测到的物理量或温度变化而不变。

公开(公告)号：US06518880B2

公开(公告)日：2003-02-11

申请号：US09880791

申请日：2001-06-15

申请人： Yukihiko Tanizawa

发明人： Yukihiko Tanizawa

IPC分类号： G08B2900

CPC分类号： G01R17/10 ,  G01D3/08 ,  G01L9/045 ,  G01L9/065

摘要： A physical-quantity detection sensor includes a sensor portion (10) for generating and outputting a voltage depending on a physical quantity. A signal processing circuit (4) operates for processing the voltage outputted from the sensor portion (10) to generate and output a voltage depending on the voltage outputted from the sensor portion (10) during a physical-quantity sensing mode of operation. A reference voltage is inputted into the signal processing circuit (4) during a checking mode of operation which differs from the physical-quantity sensing mode of operation. The reference voltage is different from the voltage outputted from the sensor portion (10). During the checking mode of operation, a malfunction of the signal processing circuit (4) is detected on the basis of an output signal from the signal processing circuit (4) which responds to the reference voltage inputted thereinto.

公开(公告)号：US07777565B2

公开(公告)日：2010-08-17

申请号：US12285706

申请日：2008-10-14

申请人： Yukihiko Tanizawa

发明人： Yukihiko Tanizawa

IPC分类号： H03F3/45 ,  H03G3/20

CPC分类号： H03F3/45475 ,  G01R1/203 ,  G01R19/0023 ,  G01R19/0092 ,  G01R31/006 ,  H03F3/45928 ,  H03F2200/261 ,  H03F2200/462 ,  H03F2200/471 ,  H03F2203/45101 ,  H03F2203/45138 ,  H03F2203/45522 ,  H03F2203/45528 ,  H03F2203/45586 ,  H03F2203/45588 ,  H03F2203/45591 ,  H03F2203/45594 ,  H03G1/0088

摘要： A differential amplification circuit and a method corrects an offset voltage derived from a variance in resistances. With first and second input terminals brought to the same potential and set to a potential different from a reference potential, the resistance value of resistors is adjusted so that an output potential and the reference potential will be substantially equal to each other.

摘要翻译： 差分放大电路和方法校正由电阻方差导出的偏移电压。 由于第一和第二输入端子具有相同的电位并且被设定为与参考电位不同的电位，所以调节电阻器的电阻值，使得输出电位和参考电位彼此基本相等。

公开(公告)号：US07639169B2

公开(公告)日：2009-12-29

申请号：US12153219

申请日：2008-05-15

申请人： Yukihiko Tanizawa

发明人： Yukihiko Tanizawa

IPC分类号： H03M1/12

CPC分类号： H03M1/089 ,  H03M1/14 ,  H03M1/502 ,  H03M1/60

摘要： An A/D converter circuit has a first ring delay line and a second ring delay line configured to vary respective characteristics in the same manner relative to a change in the ambient temperature. A reference voltage, which is free from a change in temperature, is fed as a power supply voltage to the second ring delay line. Digital data produced by the first ring delay line is temperature-compensated by digital data produced by the second ring delay line.

摘要翻译： A / D转换器电路具有第一环延迟线和第二环延迟线，其被配置为相对于环境温度的变化以相同的方式改变各自的特性。 没有温度变化的参考电压作为电源电压被馈送到第二环延迟线。 由第一环延迟线产生的数字数据由第二环延迟线产生的数字数据进行温度补偿。