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    Oscillator circuit
    271.
    发明专利
    Oscillator circuit 审中-公开
    振荡器电路

    公开(公告)号：JP2014175679A

    公开(公告)日：2014-09-22

    申请号：JP2013043622

    申请日：2013-03-06

    Applicant: Nippon Dempa Kogyo Co Ltd ,  日本電波工業株式会社

    Inventor： FUKUDA MINORU

    IPC: H03B5/32

    CPC classification number: H03B5/362 ,  H03B5/368 ,  H03B2200/0008 ,  H03B2200/004 ,  H03B2201/0208

    Abstract: PROBLEM TO BE SOLVED: To enable adjusting an oscillating frequency and to excellently maintain a frequency variable width.SOLUTION: An oscillator circuit 100 includes: a crystal oscillator 1; a variable capacitance element 2 provided between a first terminal of the crystal oscillator 1 and the ground, and in which the capacitance value is changed by control of a control voltage VC; a transistor 31 having a base connected to a second terminal of the crystal oscillator 1; and a capacitor 4 provided between an emitter and a collector of the transistor 31.

    Abstract translation: 要解决的问题：为了能够调整振荡频率并且极好地保持频率可变宽度。解决方案：振荡器电路100包括：晶体振荡器1; 设置在晶体振荡器1的第一端子和地之间的可变电容元件2，其中通过控制电压VC的控制来改变电容值; 晶体管31，其具有连接到晶体振荡器1的第二端子的基极; 以及设置在晶体管31的发射极和集电极之间的电容器4。

    Piezoelectric oscillator
    276.
    发明专利
    Piezoelectric oscillator 审中-公开
    压电振荡器

    公开(公告)号：JP2006114975A

    公开(公告)日：2006-04-27

    申请号：JP2004297669

    申请日：2004-10-12

    Applicant: Epson Toyocom Corp ,  エプソントヨコム株式会社

    Inventor： SATO TOMIO

    IPC: H03B5/32 ,  H03B5/02

    CPC classification number: H03B5/36 ,  H03B2201/0208 ,  H03B2202/07

    Abstract: PROBLEM TO BE SOLVED: To provide a circuit capable of taking two isomorphous outputs having phases different by 180° from the inside of a single oscillation loop, and taking this as an oscillator output without any change; and capable of eliminating in-phase noise by providing a differential amplifier in the inside of the oscillator as necessary.
    SOLUTION: In the piezoelectric oscillator provided with a piezoelectric resonator and first and second oscillation circuits; an input terminal of the first oscillation circuit is connected to one terminal of the piezoelectric resonator, and an input terminal of the second oscillation circuit is connected to the other terminal of the piezoelectric resonator. In this piezoelectric oscillator, the oscillation outputs having phases different by 180° is acquired from the outputs of the first and the second oscillation circuits.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种能够采用两个同相输出的电路，该相位输出具有与单个振荡回路内部相差180°的相位，并且将其作为振荡器输出而没有任何变化; 并且根据需要通过在振荡器内部提供差分放大器来消除同相噪声。 解决方案：在具有压电谐振器和第一和第二振荡电路的压电振荡器中; 第一振荡电路的输入端子连接到压电谐振器的一个端子，第二振荡电路的输入端子连接到压电谐振器的另一个端子。 在这种压电振荡器中，从第一和第二振荡电路的输出获得具有相位相差180°的振荡输出。 版权所有（C）2006，JPO＆NCIPI

    Oscillator
    279.
    发明专利
    Oscillator 审中-公开
    振荡器

    公开(公告)号：JP2003332842A

    公开(公告)日：2003-11-21

    申请号：JP2002137842

    申请日：2002-05-13

    Applicant: Fujitsu Media Device Kk ,  富士通メディアデバイス株式会社

    Inventor： MATSUO NOBUAKI ,  PUEL ALEJANDRO

    IPC: H03B1/00 ,  H03B5/12 ,  H03B5/18

    CPC classification number: H03B5/1847 ,  H03B2201/0208

    Abstract: PROBLEM TO BE SOLVED: To provide an oscillator in which oscillation is stabilized to improve the C/N characteristic. SOLUTION: This oscillator having a resonance circuit (10) and a feedback circuit (20) is provided with a voltage divider circuit (C3 and C4) for dividing an output voltage of the main resonance element circuit in the resonance circuit and outputting the divided output voltage to the feedback circuit. Because the output voltage is divided and given to the feedback circuit, the feedback circuit can be stably operated regardless of the variations in circuit elements and a voltage change applied from the outside the oscillation is stabilized, improving the C/N characteristic. COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题：提供振荡稳定以提高C / N特性的振荡器。 解决方案：具有谐振电路（10）和反馈电路（20）的振荡器设置有用于分割谐振电路中的主谐振元件电路的输出电压的分压电路（C3和C4），并输出 将反馈电路的分压输出电压。 由于输出电压被分配给反馈电路，无论电路元件的变化和外部施加的电压变化如何稳定，反馈电路都可以稳定工作，从而提高了C / N特性。 版权所有（C）2004，JPO

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