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1. 发明申请

US20120086514A1 MEMS OSCILLATOR 有权
标题翻译： MEMS振荡器
公开(公告)号：US20120086514A1
公开(公告)日：2012-04-12
申请号：US13271970
申请日：2011-10-12
申请人： Petrus Antonius Thomas Marinus Vermeeren , Jozef Thomas Martinus van Beek
发明人： Petrus Antonius Thomas Marinus Vermeeren , Jozef Thomas Martinus van Beek
IPC分类号： H03F3/04 , H03B5/32
CPC分类号： H03H9/02259 , H03B5/30
摘要： A piezoresistive MEMS oscillator uses an output circuit to control the voltage across the resonator body. This results in a DC bias of the resonator. A current path is provided between the output of the output circuit and the resonator body such that changes in current through or voltage across the resonator body, resulting from changes in resistance of the resonator body, are coupled to the output. This arrangement uses the bias current flowing through the resonator to derive the output. In this way, the same DC current is used to provide the required DC resonator bias and to drive the output circuit to its DC operating point. The benefit of this arrangement is a reduced power-consumption.In addition, when using an arrangement where a virtual-earth for the resonator to amplifier connection is employed, a reduced sensitivity for bond pad capacitances and other stray capacitances is obtained.
摘要翻译：压阻MEMS振荡器使用输出电路来控制谐振器本体上的电压。这导致谐振器的直流偏置。在输出电路的输出和谐振器本体之间提供电流路径，使得由谐振器本体的电阻变化导致的谐振器本体上的电流或电压的变化与输出耦合。这种布置使用流过谐振器的偏置电流来导出输出。以这种方式，使用相同的直流电流来提供所需的DC谐振器偏置并将输出电路驱动到其DC工作点。这种安排的好处是降低功耗。此外，当使用用于谐振器的虚拟地球到放大器连接的布置时，获得了对焊盘电容和其他杂散电容的灵敏度的降低。

2. 发明授权

US08564377B2 MEMS oscillator 有权
标题翻译： MEMS振荡器
公开(公告)号：US08564377B2
公开(公告)日：2013-10-22
申请号：US13271970
申请日：2011-10-12
申请人： Petrus Antonius Thomas Marinus Vermeeren , Jozef Thomas Martinus van Beek
发明人： Petrus Antonius Thomas Marinus Vermeeren , Jozef Thomas Martinus van Beek
IPC分类号： H03B5/30
CPC分类号： H03H9/02259 , H03B5/30
摘要： A piezoresistive MEMS oscillator uses an output circuit to control the voltage across the resonator body. This results in a DC bias of the resonator. A current path is provided between the output of the output circuit and the resonator body, such that changes in current through or voltage across the resonator body, resulting from changes in resistance of the resonator body, are coupled to the output. This arrangement uses the bias current flowing through the resonator to derive the output. In this way, the same DC current is used to provide the required DC resonator bias and to drive the output circuit to its DC operating point.
摘要翻译：压阻MEMS振荡器使用输出电路来控制谐振器本体上的电压。这导致谐振器的直流偏置。在输出电路的输出和谐振器本体之间提供电流路径，使得由谐振器本体的电阻变化导致的谐振器本体上的电流或电压的变化耦合到输出端。这种布置使用流过谐振器的偏置电流来导出输出。以这种方式，使用相同的直流电流来提供所需的DC谐振器偏置并将输出电路驱动到其DC工作点。

3. 发明申请

US20120032747A1 MEMS OSCILLATOR 有权
标题翻译： MEMS振荡器
公开(公告)号：US20120032747A1
公开(公告)日：2012-02-09
申请号：US13198067
申请日：2011-08-04
申请人： Petrus Antonius Thomas Marinus Vermeeren , Kim Phan Le
发明人： Petrus Antonius Thomas Marinus Vermeeren , Kim Phan Le
IPC分类号： H03B5/30 , H02N1/08
CPC分类号： H03H9/02259
摘要： A piezoresistive MEMS oscillator comprises a resonator body, first and second drive electrodes located adjacent the resonator body for providing an actuation signal; and at least a first sense electrode connected to a respective anchor point. The voltages at the electrodes are controlled and/or processed such that the feedthrough AC current from one drive electrode to the sense electrode is at least partially offset by the feedthrough AC current from the other drive electrode to the sense electrode.
摘要翻译：压电MEMS振荡器包括谐振器体，位于谐振器本体附近的第一和第二驱动电极，用于提供致动信号; 以及至少连接到相应锚点的第一感测电极。电极处的电压被控制和/或处理，使得从一个驱动电极到感测电极的馈通AC电流至少部分地被从另一驱动电极到感测电极的馈通AC电流偏移。

4. 发明授权

US08461936B2 MEMS oscillator 有权
标题翻译： MEMS振荡器
公开(公告)号：US08461936B2
公开(公告)日：2013-06-11
申请号：US13198067
申请日：2011-08-04
申请人： Petrus Antonius Thomas Marinus Vermeeren , Kim Phan Le
发明人： Petrus Antonius Thomas Marinus Vermeeren , Kim Phan Le
IPC分类号： H03B5/30 , G04C3/06
CPC分类号： H03H9/02259
摘要： A piezoresistive MEMS oscillator comprises a resonator body, first and second drive electrodes located adjacent the resonator body for providing an actuation signal; and at least a first sense electrode connected to a respective anchor point. The voltages at the electrodes are controlled and/or processed such that the feedthrough AC current from one drive electrode to the sense electrode is at least partially offset by the feedthrough AC current from the other drive electrode to the sense electrode.
摘要翻译：压电MEMS振荡器包括谐振器体，位于谐振器本体附近的第一和第二驱动电极，用于提供致动信号; 以及至少连接到相应锚点的第一感测电极。电极处的电压被控制和/或处理，使得从一个驱动电极到感测电极的馈通AC电流至少部分地被从另一驱动电极到感测电极的馈通AC电流偏移。

5. 发明授权

US06605990B2 Balanced transformer-less amplifier and an offset detection and correction system therefore 失效
标题翻译：平衡无变压器放大器和偏移检测和校正系统
公开(公告)号：US06605990B2
公开(公告)日：2003-08-12
申请号：US10106953
申请日：2002-03-26
申请人： Petrus Antonius Thomas Marinus Vermeeren
发明人： Petrus Antonius Thomas Marinus Vermeeren
IPC分类号： H03F102
CPC分类号： H03F1/304 , H03F2200/331
摘要： A balanced transformer-less amplifier includes a system for detecting and correcting DC offset across the output terminals of the amplifier. The output signal is digitized, counted during a predetermined period, and the result of the counting is used to derive a DC correction signal which is fed back to the input of the amplifier.
摘要翻译：平衡无变压器放大器包括用于检测和校正放大器的输出端上的DC偏移的系统。输出信号被数字化，在预定时段内进行计数，并且计数结果用于导出反馈到放大器的输入端的DC校正信号。

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