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    Ultrasonic motor and electronic apparatus having ultrasonic motor
    1.
    发明授权
    Ultrasonic motor and electronic apparatus having ultrasonic motor 失效
    超声波电机和具有超声波电机的电子设备

    公开(公告)号：US06388362B1

    公开(公告)日：2002-05-14

    申请号：US09245046

    申请日：1999-02-04

    申请人： Kenji Suzuki ,  Takashi Yamanaka ,  Akihiro Iino ,  Kazuo Katou ,  Makoto Suzuki

    发明人： Kenji Suzuki ,  Takashi Yamanaka ,  Akihiro Iino ,  Kazuo Katou ,  Makoto Suzuki

    IPC分类号： H01L4108

    CPC分类号： H02N2/166 ,  H02N2/147

    摘要： An ultrasonic motor includes an oscillation drive circuit for generating an oscillation wave by self-excited oscillation of an oscillator bonded with a piezoelectric element, and a start/stop signal generating circuit for generating a signal for controlling the starting and stopping of the ultrasonic motor by bringing the oscillation drive circuit into an active state and a stop state, respectively. The oscillation drive circuit includes a power amplifier for amplifying an excitation signal, a capacitive circuit for adjusting a frequency of the excitation signal, and a switching circuit connected to a capacitive element of the capacitive circuit for short-circuiting terminals of the capacitive element based on an output signal of the start/stop signal generating circuit.

    摘要翻译： 超声波马达包括：振荡驱动电路，用于通过与压电元件接合的振荡器的自激振荡产生振荡波;以及启动/停止信号发生电路，用于产生用于控制超声波马达的启动和停止的信号 将振荡驱动电路分别置于活动状态和停止状态。 振荡驱动电路包括用于放大激励信号的功率放大器，用于调节激励信号的频率的电容电路，以及连接到用于电容元件的短路端子的电容电路的电容元件的开关电路，其基于 启动/停止信号发生电路的输出信号。

    DC-to-DC converter
    3.
    发明授权
    DC-to-DC converter 失效
    直流到直流转换器

    公开(公告)号：US3935526A

    公开(公告)日：1976-01-27

    申请号：US388260

    申请日：1973-08-14

    申请人： Yasuji Kamata ,  Kazuo Katou

    发明人： Yasuji Kamata ,  Kazuo Katou

    IPC分类号： H02M3/28 ,  H02M3/335

    CPC分类号： H02M3/33553

    摘要： A DC-to-DC converter for providing a DC output voltage proportional to a DC voltage applied to the primary winding of a transformer by turning on and off the applied DC voltage by means of a switching element connected in series with the primary winding. The voltage developed across the secondary winding of the transformer upon the turning on and off of the applied DC voltage is rectified and smoothed by means of a circuit including a rectifying diode, a choke coil and a capacitor. The transformer has a core which exhibits a rectangular hysteresis characteristic. When the switching element is turned off, the current flowing through the choke coil when the switching element is conductive is caused to flow as a reset current through a part of the secondary winding of the transformer so that the level of the magnetic flux of the core of the transformer may be restored to its initial value.

    摘要翻译： 一种DC-DC转换器，用于通过与初级绕组串联连接的开关元件接通和断开施加的直流电压，提供与施加到变压器的初级绕组的直流电压成比例的直流输出电压。 在施加的直流电压接通和断开时，变压器次级绕组上产生的电压通过包括整流二极管，扼流线圈和电容器的电路进行整流和平滑。 变压器具有呈现矩形滞后特性的磁芯。 当开关元件关闭时，当开关元件导通时流过扼流线圈的电流作为复位电流流过变压器的次级绕组的一部分，使得芯的磁通量的水平 的变压器可以恢复到其初始值。

    Time division multiplexing amplifier
    4.
    发明授权
    Time division multiplexing amplifier 失效
    时分复用放大器

    公开(公告)号：US4086541A

    公开(公告)日：1978-04-25

    申请号：US749805

    申请日：1976-12-13

    申请人： Kazuo Katou ,  Takashi Sase ,  Ikuho Horinaka

    发明人： Kazuo Katou ,  Takashi Sase ,  Ikuho Horinaka

    IPC分类号： H03F3/45 ,  H03F3/72 ,  H03F1/14

    CPC分类号： H03F3/45479 ,  H03F3/72 ,  H03F2200/261

    摘要： A time division multiplexing amplifier having a differential amplifier, such as a dynamic bridge amplifier, which has a predetermined gain accurately provided by means of operational network resistors. The differential amplifier is used to amplify differential signals containing a common-mode voltage. Prior to amplification of the differential signals, a common-mode voltage is applied in common to two input terminals of the differential amplifier, and then the differential amplifier is adjusted to provide a zero offset voltage. After that, the differential signals are applied to the differential amplifier, so that the differential signals can be amplified without having any adverse effect of a common-mode voltage.

    摘要翻译： 具有诸如动态桥式放大器的差分放大器的时分复用放大器，其具有通过可操作网络电阻精确提供的预定增益。 差分放大器用于放大包含共模电压的差分信号。 在差分信号放大之前，共模电压被施加到差分放大器的两个输入端，然后调节差分放大器以提供零偏移电压。 之后，将差分信号施加到差分放大器，使得差分信号可以被放大，而不会产生共模电压的任何不利影响。