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    • 1. 发明申请
    • CONTROL APPARATUS FOR ELECTRIC MOTOR
    • 电动马达控制装置
    • US20120242262A1
    • 2012-09-27
    • US13203671
    • 2010-02-02
    • Hirofumi AtarashiHitoshi HorikawaToshiyuki NishidaMasato KitaYoshie Kita
    • Hirofumi AtarashiHitoshi HorikawaToshiyuki NishidaMasato KitaYoshie Kita
    • H02P6/08
    • H02P27/06
    • A control apparatus for an electric motor provided with a rotator having a permanent magnet and with a stator for generating a rotating magnetic field by an applied voltage and revolving the rotator includes: a rectangular wave inverter that applies a rectangular wave voltage onto the stator of the electric motor to drive the electric motor; a voltage converting section that raises or lowers an output voltage of a direct-current power supply and applies the voltage onto the rectangular wave inverter; an electrical angle acquiring section that acquires an electrical angle of the rotator of the electric motor; and an output voltage command generating section that generates a command for instructing the voltage converting section to output an electrical-angle synchronized voltage whose amplitude ripples in synchronization with a change of the electrical angle of the rotator acquired by the electrical angle acquiring section. In response to the command generated by the output voltage command generating section, the voltage converting section raises or lowers the output voltage of the direct-current power supply to a voltage indicated by the command and applies the voltage onto the rectangular wave inverter. This reduces a loss caused by a response delay of the electric motor.
    • 一种电动机的控制装置,具备具有永久磁铁和定子的旋转体,所述旋转体通过施加电压产生旋转磁场并旋转所述旋转体,所述旋转体包括:将矩形波电压施加到所述定子上的矩形波逆变器 电动马达驱动电机; 电压转换部,其升高或降低直流电源的输出电压,并将电压施加到矩形波逆变器上; 电角度获取部,其获取所述电动机的旋转体的电角度; 以及输出电压指令生成部,其生成用于指示电压转换部输出与由所述电角度获取部获取的所述旋转体的电角度的变化同步的振幅波动的电角同步电压的指令。 响应于由输出电压指令产生部分产生的指令,电压转换部分将直流电源的输出电压升高或降低到由该指令指示的电压,并将电压施加到矩形波逆变器上。 这减少了由电动机的响应延迟引起的损耗。
    • 2. 发明授权
    • Control apparatus for electric motor
    • 电动机控制装置
    • US08749184B2
    • 2014-06-10
    • US13203671
    • 2010-02-02
    • Hirofumi AtarashiHitoshi HorikawaToshiyuki NishidaYoshie Kita
    • Hirofumi AtarashiHitoshi HorikawaToshiyuki NishidaMasato Kita
    • H02P27/00H02P1/00H02P6/00H02P27/04
    • H02P27/06
    • A control apparatus for an electric motor provided with a rotator having a permanent magnet and with a stator for generating a rotating magnetic field by an applied voltage and revolving the rotator includes: a rectangular wave inverter that applies a rectangular wave voltage onto the stator of the electric motor to drive the electric motor; a voltage converting section that raises or lowers an output voltage of a direct-current power supply and applies the voltage onto the rectangular wave inverter; an electrical angle acquiring section that acquires an electrical angle of the rotator of the electric motor; and an output voltage command generating section that generates a command for instructing the voltage converting section to output an electrical-angle synchronized voltage whose amplitude ripples in synchronization with a change of the electrical angle of the rotator acquired by the electrical angle acquiring section. In response to the command generated by the output voltage command generating section, the voltage converting section raises or lowers the output voltage of the direct-current power supply to a voltage indicated by the command and applies the voltage onto the rectangular wave inverter. This reduces a loss caused by a response delay of the electric motor.
    • 一种电动机的控制装置,具备具有永久磁铁和定子的旋转体,所述旋转体通过施加电压产生旋转磁场并旋转所述旋转体,所述旋转体包括:将矩形波电压施加到所述定子上的矩形波逆变器 电动马达驱动电机; 电压转换部,其升高或降低直流电源的输出电压,并将电压施加到矩形波逆变器上; 电角度获取部,其获取所述电动机的旋转体的电角度; 以及输出电压指令生成部,其生成用于指示电压转换部输出与由所述电角度获取部获取的所述旋转体的电角度的变化同步的振幅波动的电角同步电压的指令。 响应于由输出电压指令产生部分产生的指令,电压转换部分将直流电源的输出电压升高或降低到由该指令指示的电压,并将电压施加到矩形波逆变器上。 这减少了由电动机的响应延迟引起的损耗。
    • 10. 发明授权
    • PLL circuit, phase shifting method, and IC chip
    • PLL电路,相移方法和IC芯片
    • US07728657B2
    • 2010-06-01
    • US11980389
    • 2007-10-31
    • Masato Kita
    • Masato Kita
    • H04L27/22
    • H03D3/241H03D3/007
    • A Phased Locked Loop (PLL) circuit includes: a clock signal generating unit for generating a first clock signal and a second clock signal of which the phase differs from the first clock signal by Π/2; a computing unit for computing first phase comparison results showing the results of comparing the phases of a signal wherein the first clock signal is subjected to phase shifting with the PSK modulation signal and second phase comparison results showing the results of comparing the phases of a signal wherein the second clock signal is subjected to phase shifting with the PSK modulation signal based on first and second parameters, the first clock signal, the second clock signal, and the PSK modulation signal; a control direction setting unit for virtually controlling the control angle; a parameter control unit; and a reading control unit for controlling the timing of reading data from the PSK modulation.
    • 分相锁定环路(PLL)电路包括:时钟信号产生单元,用于产生与第一时钟信号相位不同的第一时钟信号和第二时钟信号&Pgr; / 2; 用于计算第一相位比较结果的计算单元,其示出将第一时钟信号经过相移的信号与PSK调制信号进行比较的结果,以及示出比较信号相位的相位的结果的第二相位比较结果, 基于第一和第二参数,第一时钟信号,第二时钟信号和PSK调制信号,第二时钟信号用PSK调制信号进行相移; 用于虚拟地控制所述控制角的控制方向设定单元; 参数控制单元; 以及读取控制单元,用于控制从PSK调制读取数据的定时。