发明申请
US20090079411A1 VOLTAGE DIVIDING CIRCUIT AND MAGNETIC SENSOR CIRCUIT 有权
电压分流电路和磁传感器电路

  • 专利标题: VOLTAGE DIVIDING CIRCUIT AND MAGNETIC SENSOR CIRCUIT
  • 专利标题(中): 电压分流电路和磁传感器电路
  • 申请号: US12192421
    申请日: 2008-08-15
  • 公开(公告)号: US20090079411A1
    公开(公告)日: 2009-03-26
  • 发明人: Minoru ARIYAMA
  • 申请人: Minoru ARIYAMA
  • 申请人地址: JP Chiba-shi
  • 专利权人: Seiko Instruments Inc.
  • 当前专利权人: Seiko Instruments Inc.
  • 当前专利权人地址: JP Chiba-shi
  • 优先权: JPJP2007-215949 20070822
  • 主分类号: G05F1/648
  • IPC分类号: G05F1/648
VOLTAGE DIVIDING CIRCUIT AND MAGNETIC SENSOR CIRCUIT
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.
公开/授权文献
信息查询
IPC分类:
G 物理
G05 控制;调节
G05F 调节电变量或磁变量的系统(调节雷达或无线电导航系统中脉冲计时或脉冲重复频率的入G01S;专用于电子计时器中电流或电压的调节入G04G19/02;用电装置调节非电变量的闭环系统入G05D;数字计算机的调节电源入G06F1/26;用于得到有衔铁时的所需电磁铁工作特性入H01F7/18;调节电功率的配电网络入H02J;调节电池充电的入H02J7/00;静态变换器输出的调节,例如开关式调节器入H02M;电发生器输出的调节入H02N,H02P9/00;变压器、电抗器、或扼流圈的控制入H02P13/00;调节放大器的频率响应、增益、最大输出、振幅或带宽的入H03G;调节谐振电路调谐的入H03J;控制电子振荡器或脉冲发生器的入H03L;调节传输线路特性的入H04B;控制电光源的入H05B39/04,H05B41/36,H05B45/10,H05B45/20,H05B47/10;X射线设备的电气控制入H05G1/30)
G05F1/00 从系统的输出端检测的一个电量对一个或多个预定值的偏差量并反馈到系统中的一个设备里以便使该检测量恢复到它的一个或多个预定值的自动调节系统,即有回授作用的系统
G05F1/10 .调节电压或电流(G05F1/02优先;用于电气铁路的入B60M3/02)
G05F1/625 ..其中实际被调整的变量是交流或直流是没有关系的
G05F1/63 ...利用与负载串联的可变阻抗作为末级控制器的
G05F1/648 ....可变阻抗是要被选择的多个电阻器
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