公开(公告)号：US07915964B2

公开(公告)日：2011-03-29

申请号：US12229805

申请日：2008-08-27

申请人： Minoru Ariyama

发明人： Minoru Ariyama

IPC分类号： H03K3/03

CPC分类号： H03K3/0315 ,  G06F1/08 ,  H03K3/354 ,  H03K5/133 ,  H03K2005/0013

摘要： A variable frequency oscillating circuit has an oscillating circuit that undergoes an oscillation operation. The oscillating circuit has at least one inverter and at least one capacitor forming a circuit in a ring oscillator configuration. A current circuit outputs a current based on a frequency control signal controlling a frequency of a clock signal output from the oscillating circuit. A pulse generating circuit generates a pulse when the frequency control signal is switched from low to high and from high to low. The oscillating circuit stops an oscillation operation by stopping a charge/discharge operation of the at least one capacitor when the pulse is generated by the pulse generating circuit.

摘要翻译： 可变频振荡电路具有经历振荡操作的振荡电路。 振荡电路具有至少一个反相器和形成环形振荡器配置的电路的至少一个电容器。 电流电路基于控制从振荡电路输出的时钟信号的频率的频率控制信号输出电流。 当频率控制信号从低电平切换到高电平和从高电平变为低电平时，脉冲发生电路产生脉冲。 当由脉冲发生电路产生脉冲时，振荡电路通过停止至少一个电容器的充电/放电操作来停止振荡操作。

公开(公告)号：US20090058542A1

公开(公告)日：2009-03-05

申请号：US12229805

申请日：2008-08-27

申请人： Minoru Ariyama

发明人： Minoru Ariyama

IPC分类号： H03B5/08

CPC分类号： H03K3/0315 ,  G06F1/08 ,  H03K3/354 ,  H03K5/133 ,  H03K2005/0013

摘要： Provided is a variable frequency oscillating circuit which has a small circuit size and is unlikely to cause a semiconductor device to malfunction. One oscillating circuit (3) is used, and thus the circuit size is not increased. When a frequency control signal (SF) is switched, constant currents (I2 and I3) are each switched, and ringing is generated in the constant currents (I2 and I3), a pulse signal (SP) becomes high to be input to the oscillating circuit (3) during the ringing, and a clock signal (CLK) output from the oscillating circuit (3) in response to the pulse signal (SP) is fixed to low, with the result that the oscillating circuit (3) stops a regular oscillation. As a result, a clock signal having an unintended frequency is not generated.

摘要翻译： 提供了一种具有小电路尺寸并且不太可能导致半导体器件故障的可变频率振荡电路。 使用一个振荡电路（3），因此电路尺寸不增加。 当切换频率控制信号（SF）时，恒定电流（I2和I3）都被切换，并且在恒定电流（I2和I3）中产生振铃，脉冲信号（SP）变高以输入振荡 在振铃期间电路（3）和响应于脉冲信号（SP）从振荡电路（3）输出的时钟信号（CLK）被固定为低，结果是振荡电路（3）停止规则 振荡。 结果，不产生具有非预期频率的时钟信号。

公开(公告)号：US20070222509A1

公开(公告)日：2007-09-27

申请号：US11703026

申请日：2007-02-06

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

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

IPC分类号： H03F1/14

CPC分类号： H03F1/3211 ,  H03F3/387 ,  H03F3/45475 ,  H03F3/45986 ,  H03F3/45995 ,  H03F2203/45138 ,  H03F2203/45212 ,  H03F2203/45614 ,  H03F2203/45616 ,  H03F2203/45681 ,  H03F2203/45726

摘要： Provided is a chopper amplifier circuit capable of eliminating an influence of a slew rate of an amplifier and suppressing spike generation to thereby obtain an output signal having little harmonic distortion. The chopper amplifier circuit according to the present invention includes: a first chopper circuit for chopping an input signal by a first pulse and a second pulse shifted from each other in phase by a half cycle, switching a relation of connection between an input terminal pair and an output terminal pair at a timing of the chopping, and outputting the input signal as a modulated signal; an amplifier for amplifying the modulated signal and outputting the modulated signal thus amplified as an amplified signal; a first sample hold circuit for holding the amplified signal at the first pulse and outputting the amplified signal at the second pulse; and a second sample hold circuit for holding the amplified signal at the second pulse and outputting the amplified signal at the first pulse.

摘要翻译： 提供了能够消除放大器的转换速率的影响并抑制尖峰发生从而获得具有很小的谐波失真的输出信号的斩波放大器电路。 根据本发明的斩波放大器电路包括：第一斩波电路，用于通过第一脉冲斩波输入信号和相位偏移半个周期的第二脉冲，切换输入端子对和 在斩波的定时输出端子对，并输出该输入信号作为调制信号; 放大器，用于放大经调制的信号并输出​​被放大的被调制信号作为放大信号; 第一采样保持电路，用于保持放大的信号处于第一脉冲，并以第二脉冲输出放大的信号; 以及第二采样保持电路，用于将放大的信号保持在第二脉冲，并以第一脉冲输出放大的信号。

公开(公告)号：US20070146065A1

公开(公告)日：2007-06-28

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。