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    • 3. 发明授权
    • Power conversion device
    • 电源转换装置
    • US08044632B2
    • 2011-10-25
    • US12376464
    • 2006-10-19
    • Hideo ObiTakahiro KikuchiTakeshi TanakaDaisuke ItoKeita Hatanaka
    • Hideo ObiTakahiro KikuchiTakeshi TanakaDaisuke ItoKeita Hatanaka
    • H02P27/04
    • H02P27/06
    • A power conversion device includes a converter that converts AC power to DC power, a converter controller that controls an output voltage of the converter, an inverter that converts the DC power to AC power at a variable frequency, an inverter controller that controls an output frequency of the inverter, and a current detector that detects an AC current on an input side of the converter. It is configured in such a manner that the inverter controller adjusts a slip frequency of the induction motor in response to a fluctuation of the AC current on the input side of the converter detected by the current detector. It thus becomes possible to suppress a beat current in an output current of the inverter at the occurrence of a load fluctuation as well as a power supply voltage fluctuation.
    • 电力转换装置包括将交流电转换为直流电的转换器,控制转换器的输出电压的转换器控制器,以可变频率将直流电转换为交流电的逆变器,控制输出频率的逆变器控制器 以及检测转换器的输入侧的交流电流的电流检测器。 以使逆变器控制器响应于由电流检测器检测的转换器的输入侧的交流电流的波动来调整感应电动机的转差频率的方式构成。 因此,在发生负载变动以及电源电压变动的情况下,可以抑制逆变器的输出电流中的节拍电流。
    • 4. 发明申请
    • Power Conversion Device
    • 电源转换装置
    • US20100231159A1
    • 2010-09-16
    • US12376464
    • 2006-10-19
    • Hideo ObiTakahiro KikuchiTakeshi TanakaDaisuke ItoKeita Hatanaka
    • Hideo ObiTakahiro KikuchiTakeshi TanakaDaisuke ItoKeita Hatanaka
    • H02P27/04
    • H02P27/06
    • A power conversion device includes a converter that converts AC power to DC power, a converter controller that controls an output voltage of the converter, an inverter that converts the DC power to AC power at a variable frequency, an inverter controller that controls an output frequency of the inverter, and a current detector that detects an AC current on an input side of the converter. It is configured in such a manner that the inverter controller adjusts a slip frequency of the induction motor in response to a fluctuation of the AC current on the input side of the converter detected by the current detector. It thus becomes possible to suppress a beat current in an output current of the inverter at the occurrence of a load fluctuation as well as a power supply voltage fluctuation.
    • 电力转换装置包括将交流电转换为直流电的转换器,控制转换器的输出电压的转换器控制器,以可变频率将直流电转换为交流电的逆变器,控制输出频率的逆变器控制器 以及检测转换器的输入侧的交流电流的电流检测器。 以使逆变器控制器响应于由电流检测器检测的转换器的输入侧的交流电流的波动来调整感应电动机的转差频率的方式构成。 因此,在发生负载变动以及电源电压变动的情况下,可以抑制逆变器的输出电流中的节拍电流。
    • 6. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US09366989B2
    • 2016-06-14
    • US14589955
    • 2015-01-05
    • Daisuke ItoKen YoshidaKeiko MatsumotoYoichi SakuraiDaisuke Takahashi
    • Daisuke ItoKen YoshidaKeiko MatsumotoYoichi SakuraiDaisuke Takahashi
    • G03G15/01G03G15/08
    • G03G15/0822G03G15/0121G03G15/0126G03G15/0142G03G15/0189G03G2215/0607
    • An image forming apparatus includes at least one image bearer; multiple developing devices to develop the latent images with developers including toner and carrier into a toner image; multiple developer supply devices to supply the developers to the multiple developing devices, respectively; and a fixing device to fix the toner image on a sheet of recording media. When one of the multiple developing devices positioned at a shortest distance from an outline of the fixing device is referred to as a first developing device, and one of the multiple developer supply devices that supplies developer to the first developing device is referred to as a first developer supply device, the first developer supply device is greater in percentage by weight of carrier in developer supplied to the first developing device than rest of the multiple developer supply devices.
    • 图像形成装置包括至少一个图像载体; 多个显影装置将具有调色剂和载体的显影剂的潜像显影成调色剂图像; 多个显影剂供应装置分别向多个显影装置供应开发者; 以及用于将调色剂图像固定在记录介质片上的定影装置。 当定位在与定影装置的轮廓最短距离的多个显影装置中的一个被称为第一显影装置时,将显影剂供应到第一显影装置的多个显影剂供应装置中的一个被称为第一显影装置 显影剂供应装置,第一显影剂供应装置比供应给第一显影装置的显影剂中的载体的重量百分比大于其余多个显影剂供应装置。