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    • 41. 发明申请
    • Power supply apparatus
    • 电源设备
    • US20050231175A1
    • 2005-10-20
    • US11083089
    • 2005-03-18
    • Kimihiko FurukawaKazuhiro SeoYoshiaki Takahashi
    • Kimihiko FurukawaKazuhiro SeoYoshiaki Takahashi
    • G01R31/02B60L3/00G01R19/00G01R19/257G01R31/36G05F1/70H01M10/48
    • G01R19/16542G01R19/257
    • A power supply apparatus according to the present invention includes a battery and a voltage detection circuit for detecting the voltage of the battery. The voltage detection circuit includes a differential amplifier which has a first input terminal for receiving a voltage based on the voltage of the battery and a second input terminal for receiving a predetermined triangular wave and outputs a rectangular wave with a pulse width modulated according to the voltage based on the voltage of the battery and a predetermined offset voltage, and an offset circuit which supplies the offset voltage to one of the first input terminal and the second input terminal so that the differential amplifier outputs a particular rectangular wave according to the offset voltage even when the voltage based on the voltage of the battery which is supplied to the first input terminal is 0.
    • 根据本发明的电源装置包括用于检测电池电压的电池和电压检测电路。 电压检测电路包括差分放大器,该差分放大器具有用于接收基于电池电压的电压的第一输入端子和用于接收预定三角波的第二输入端子,并输出根据电压调制的脉冲宽度的矩形波 基于电池的电压和预定的偏移电压,以及偏移电路,其将偏移电压提供给第一输入端和第二输入端中的一个,使得差分放大器根据偏移电压甚至输出特定的矩形波 当基于提供给第一输入端子的电池的电压的电压为0时。
    • 45. 发明授权
    • Method and device for reducing friction on a navigating vehicle
    • 用于减少导航车辆摩擦的方法和装置
    • US5575232A
    • 1996-11-19
    • US360731
    • 1994-12-21
    • Hiroharu KatoYoshiaki Takahashi
    • Hiroharu KatoYoshiaki Takahashi
    • B63B1/38
    • B63B1/38B63B2001/387Y02T70/122
    • A method for reducing the frictional resistance of a navigating vehicle, and a method for generating micro-bubbles for reducing the friction of the navigating vehicle and an apparatus therefor. The friction reduction is achieved with the expenditure of a small amount of energy, thereby improving the overall energy efficiency for operating the ship. An air bubble/water mixture is injected towards the stern of the ship, at an inclined angle to the underwater surface, into a boundary layer formed in the vicinity of the underwater surface of the ship. The friction reduction is effectively performed because of the dynamic energy of the water, being a larger mass than air, enables the gas-including mixture to be injected over a longer distance into the boundary layer than in the case of air bubbles alone.
    • 一种用于降低导航车辆的摩擦阻力的方法,以及用于产生微气泡以减少导航车辆的摩擦力的方法及其装置。 摩擦减少是通过少量能源的消耗来实现的,从而提高了操作船舶的整体能源效率。 将气泡/水混合物以与水下表面倾斜的角度朝船的船尾喷射到形成在船舶的水下表面附近的边界层中。 由于水的动态能量,空气的质量比空气大,能够有效地进行摩擦减少,因此能够使含气体混合物比单独的气泡更长的距离喷入边界层。
    • 46. 发明授权
    • Double phase locked loop circuit
    • 双锁相环电路
    • US5329250A
    • 1994-07-12
    • US16247
    • 1993-02-11
    • Hideo ImaizumiYoshiaki Takahashi
    • Hideo ImaizumiYoshiaki Takahashi
    • H03D1/22H03L7/087H03L7/23H03L7/00
    • H03L7/235H03D1/2281H03L7/087H03D1/2254
    • A frequency of a first VCO (12) for generating a carrier of a video IF signal is set by using a frequency of a second VCO (15) as reference. The oscillation frequency of the second VCO (15) is controlled in response to the phase difference between an output signal of the first VCO (12) and the video IF signal. As a result, the output signal phase of the first VCO (12) is adjusted, and the output signal is locked to a carrier frequency of the video IF signal. Thus, the oscillation frequency of the first VCO (12) can be set automatically. Further, a signal for the phase difference between the output signal of the first VCO (12) and the video IF signal is also applied to the first VCO (12), thereby improving the stability of circuit operation.
    • 通过使用第二VCO(15)的频率作为参考来设置用于产生视频IF信号的载波的第一VCO(12)的频率。 响应于第一VCO(12)的输出信号和视频IF信号之间的相位差来控制第二VCO(15)的振荡频率。 结果,第一VCO(12)的输出信号相位被调整,并且输出信号被锁定到视频IF信号的载波频率。 因此,可以自动设定第一VCO(12)的振荡频率。 此外,用于第一VCO(12)的输出信号和视频IF信号之间的相位差的信号也被施加到第一VCO(12),从而提高电路操作的稳定性。