公开(公告)号：US20110163821A1

公开(公告)日：2011-07-07

申请号：US13048334

申请日：2011-03-15

申请人： Hiroyuki Souma ,  Seigo Fukuchi ,  Satoshi Shimizu

发明人： Hiroyuki Souma ,  Seigo Fukuchi ,  Satoshi Shimizu

IPC分类号： H03B5/12

CPC分类号： H03B5/364 ,  H03H9/14597

摘要： In a circuit including a CMOS inverter (inverting amplifier) (IV02), a floating capacitance resulting from the circuit and peripheral interconnections thereof is Cs, a capacitive element (Cg) is connected to the input side of the CMOS inverter (inverting amplifier) (IV02), a capacitive element (Cd) is connected to the output side thereof, and the capacitances of the capacitive element (Cg) and the capacitive element (Cd) are determined (tuned) so that a load capacitance (CL) of a piezoelectric vibrator (X2) satisfies a relational expression “CL=Cs+Cg×Cd/(Cg+Cd)”. By determining the capacitances of the capacitive element (Cg) and the capacitive element (Cd) in this way, it is possible to improve the oscillation frequency stability with respect to a variation in capacitance value of the load capacitance (CL) in a region of a low load capacitance (CL) (for example, 3 pF).

摘要翻译： 在包括CMOS反相器（反相放大器）（IV02）的电路中，由电路及其外围互连产生的浮动电容为Cs，电容元件（Cg）连接到CMOS反相器（反相放大器）的输入侧 IV02），电容元件（Cd）连接到其输出侧，并且电容元件（Cg）和电容元件（Cd）的电容被确定（调谐），使得压电元件的负载电容（CL） 振动器（X2）满足关系式“CL = Cs + Cg×Cd /（Cg + Cd）”。 通过以这种方式确定电容元件（Cg）和电容元件（Cd）的电容，可以提高相对于负载电容（CL）的电容值的变化的振荡频率稳定性 低负载电容（CL）（例如3 pF）。

公开(公告)号：US20120223783A1

公开(公告)日：2012-09-06

申请号：US13398330

申请日：2012-02-16

申请人： Hiroyuki Souma

发明人： Hiroyuki Souma

IPC分类号： H03B5/12

CPC分类号： H03F3/45 ,  H03B5/36 ,  H03B2200/0012 ,  H03B2200/0034 ,  H03B2200/0082

摘要： An amplifier circuit for amplifying output signal from the crystal oscillator circuit is connected to the output side of the crystal oscillator circuit. The amplifier circuit amplifies the difference between the output voltage of the crystal oscillator circuit and the input voltage of a CMOS inverter of the crystal oscillator circuit. For example, a differential amplifier is connected to the output side of the crystal oscillator circuit, then the output voltage of the crystal oscillator circuit and the input voltage of the CMOS inverter are connected to the inputs of the differential amplifier.

摘要翻译： 用于放大来自晶体振荡电路的输出信号的放大器电路连接到晶体振荡器电路的输出侧。 放大电路放大晶体振荡电路的输出电压与晶体振荡电路的CMOS反相器的输入电压之差。 例如，将差分放大器连接到晶体振荡电路的输出侧，然后将晶体振荡电路的输出电压和CMOS反相器的输入电压连接到差分放大器的输入端。

公开(公告)号：US20120212299A1

公开(公告)日：2012-08-23

申请号：US13370746

申请日：2012-02-10

申请人： Hiroyuki Souma

发明人： Hiroyuki Souma

IPC分类号： H03B5/36

CPC分类号： H03B5/364

摘要： According to the invention, two of three design values, i.e., the negative resistance RL, load capacitance CL and drive current Ios of a crystal oscillator circuit including a crystal resonator are determined to determine the remaining one design value from a relation equation or relation graph. As a result, reducing the CL of the crystal oscillator circuit allows the drive current Ios to be reduced, achieving reduced power consumption of the crystal oscillator circuit.

摘要翻译： 根据本发明，确定包括晶体谐振器的晶体振荡器电路的负电阻RL，负载电容CL和驱动电流Ios中的两个，从关系式或关系图确定剩余的一个设计值 。 结果，减小晶体振荡电路的CL可以减小驱动电流Ios，从而降低晶体振荡电路的功耗。

公开(公告)号：US20120197568A1

公开(公告)日：2012-08-02

申请号：US13360214

申请日：2012-01-27

申请人： Hiroyuki Souma

发明人： Hiroyuki Souma

IPC分类号： G06F19/00 ,  G01R27/26

CPC分类号： G01R31/2824

摘要： There is provided an oscillation circuit using a crystal vibrator including means A for obtaining an oscillation activation time Ts (Ts0) from an oscillation margin M by using a relational equation between the oscillation activation time Ts and the oscillation margin M or a relational graph thereof; means B for obtaining a relational equation between the oscillation activation time Ts and a load capacitance CL in an arbitrary driving current value Ios from the relational equation between the oscillation activation time Ts and the load capacitance CL, and the driving current value Ios; and means C for determining the load capacitance CL corresponding to the oscillation activation time Ts0 obtained by the means A, by using the relational equation between the oscillation activation time Ts and the load capacitance CL, which is obtained by the means B.

摘要翻译： 提供一种使用晶体振子的振荡电路，其包括通过使用振荡激活时间Ts和振荡边缘M之间的关系式或其关系图从振荡边界M获得振荡激活时间Ts（Ts0）的装置A. 用于从振荡激活时间Ts和负载电容CL之间的关系式和驱动电流值Ios获得振荡激活时间Ts和任意驱动电流值Ios中的负载电容CL之间的关系方程式的装置B; 以及用于通过使用由装置B获得的振荡激活时间Ts和负载电容CL之间的关系式来确定与由装置A获得的振荡激活时间Ts0相对应的负载电容CL的装置C.

公开(公告)号：US20120229149A1

公开(公告)日：2012-09-13

申请号：US13403270

申请日：2012-02-23

申请人： Hiroyuki Souma

发明人： Hiroyuki Souma

IPC分类号： G01R27/26

CPC分类号： G01R31/2824 ,  H03B5/364 ,  H03B2200/0012

摘要： It is an object of the present invention to provide a method for determining the load capacitance CL of an oscillator circuit having a low load capacitance. To attain the object, we provide a method for determining the load capacitance CL of an oscillator circuit, wherein, when a drive current and a load capacitance of the oscillator circuit with a negative resistance RL1 are Ios1 and CL1, respectively, a load capacitance CL2 for changing the drive current of the oscillator circuit to Ios2 (

摘要翻译： 本发明的目的是提供一种用于确定具有低负载电容的振荡器电路的负载电容CL的方法。 为了实现该目的，我们提供一种确定振荡器电路的负载电容CL的方法，其中当具有负电阻RL1的振荡电路的驱动电流和负载电容分别为Ios1和CL1时，负载电容CL2 用于将振荡器电路的驱动电流改变为Ios2（

公开(公告)号：US20120194284A1

公开(公告)日：2012-08-02

申请号：US13357770

申请日：2012-01-25

申请人： Hiroyuki Souma

发明人： Hiroyuki Souma

IPC分类号： H03B5/32

CPC分类号： H03B5/364

摘要： There is provided an oscillation circuit including a crystal vibrator that is connected between input and output terminals of a CMOS inverter making up the oscillation circuit; an input wiring line that includes a crystal vibrator-side input terminal connected to an input terminal pad of the CMOS inverter; an output wiring line that includes a crystal vibrator-side output terminal connected to an output terminal pad of the CMOS inverter; a ground power source wiring line that includes a crystal vibrator-side ground power source terminal; and a capacitative element that is connected between the input wiring line and the ground power source wiring line, and between the output wiring line and the ground power source wiring line, wherein the ground power source wiring line is disposed at least a part of between the input wiring line and the output wiring line.

摘要翻译： 提供一种振荡电路，包括晶体振子，其连接在构成振荡电路的CMOS反相器的输入和输出端之间; 输入布线，其包括连接到所述CMOS反相器的输入端子焊盘的晶体振子侧输入端子; 输出布线，其包括连接到所述CMOS反相器的输出端子焊盘的晶体振子侧输出端子; 接地电源布线，其包括晶体振子侧接地电源端子; 以及连接在所述输入布线和所述地电源布线之间以及所述输出布线和所述地电源布线之间的电容元件，其中，所述地电源布线配置在所述输出布线和所述地电源布线之间的至少一部分 输入接线和输出接线。

公开(公告)号：US08558630B2

公开(公告)日：2013-10-15

申请号：US13398330

申请日：2012-02-16

申请人： Hiroyuki Souma

发明人： Hiroyuki Souma

IPC分类号： H03B5/36

CPC分类号： H03F3/45 ,  H03B5/36 ,  H03B2200/0012 ,  H03B2200/0034 ,  H03B2200/0082

摘要： An amplifier circuit for amplifying output signal from the crystal oscillator circuit is connected to the output side of the crystal oscillator circuit. The amplifier circuit amplifies the difference between the output voltage of the crystal oscillator circuit and the input voltage of a CMOS inverter of the crystal oscillator circuit. For example, a differential amplifier is connected to the output side of the crystal oscillator circuit, then the output voltage of the crystal oscillator circuit and the input voltage of the CMOS inverter are connected to the inputs of the differential amplifier.

摘要翻译： 用于放大来自晶体振荡电路的输出信号的放大器电路连接到晶体振荡器电路的输出侧。 放大电路放大晶体振荡电路的输出电压与晶体振荡电路的CMOS反相器的输入电压之差。 例如，将差分放大器连接到晶体振荡电路的输出侧，然后将晶体振荡电路的输出电压和CMOS反相器的输入电压连接到差分放大器的输入端。