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公开(公告)号：US08604732B2
公开(公告)日：2013-12-10
申请号：US13354923
申请日：2012-01-20
申请人： Takashi Kawashima , Kazuki Najima , Yoshiki Nagata
发明人： Takashi Kawashima , Kazuki Najima , Yoshiki Nagata
摘要： The two-phase modulation control inverter unit includes a plurality of switching devices, a shunt resistor and a controller. The switching devices drive a three-phase motor. The shunt resistor is connected between a direct-current power supply and the switching devices. The controller reads a voltage applied to the shunt resistor in a read cycle, computes command voltages based on the read voltage, and uses the command voltages and carrier signals to compute three control signals. The read cycle corresponds to two or more signal cycles of each carrier signal. Each control signal has a pulse for each signal cycle of the corresponding carrier signal. The controller integrates a plurality of pulses of each control signal in the read cycle into one or more pulses. The controller reads a voltage applied to the shunt resistor at the time of outputting of the integrated one or more pulses in the next read cycle.
摘要翻译： 两相调制控制逆变器单元包括多个开关装置，分流电阻器和控制器。 开关器件驱动三相电机。 分流电阻连接在直流电源和开关器件之间。 控制器在读周期中读取施加到分流电阻器的电压，根据读取电压计算指令电压，并使用指令电压和载波信号计算三个控制信号。 读周期对应于每个载波信号的两个或多个信号周期。 每个控制信号具有对应载波信号的每个信号周期的脉冲。 控制器将读周期中的每个控制信号的多个脉冲集成到一个或多个脉冲中。 控制器在下一个读取周期中输出积分的一个或多个脉冲时读取施加到分流电阻器的电压。
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公开(公告)号：US06472949B1
公开(公告)日：2002-10-29
申请号：US09711472
申请日：2000-11-13
申请人： Kazuji Yamazaki , Yoshiki Nagata
发明人： Kazuji Yamazaki , Yoshiki Nagata
IPC分类号： H01P122
CPC分类号： H03H7/251
摘要： A signal attenuator may have a first attenuator (1t) and a second attenuator (2t). The first attenuator (1t) is a &pgr;-type resistance attenuator and includes resistors (R1, R2 and R3). The second attenuator (2t) is a &pgr;-type resistance attenuator and includes resistors (R4, R5 and R6) and negative temperature coefficient thermistor (R7). The first attenuator (1t) may be a T-type resistance attenuator. The first attenuator (1t) may be connected in series to each of the input and output of the second attenuator (2t). Such signal attenuators compensate for changes in signal amplitude caused purely by changes in ambient temperature.
摘要翻译： 信号衰减器可以具有第一衰减器（1t）和第二衰减器（2t）。 第一衰减器（1t）是一个pi型电阻衰减器，包括电阻（R1，R2和R3）。 第二衰减器（2t）是pi型电阻衰减器，包括电阻（R4，R5和R6）和负温度系数热敏电阻（R7）。 第一衰减器（1t）可以是T型电阻衰减器。 第一衰减器（1t）可以串联连接到第二衰减器（2t）的每个输入和输出。 这样的信号衰减器补偿纯粹由环境温度变化引起的信号幅度变化。
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公开(公告)号：US20120194111A1
公开(公告)日：2012-08-02
申请号：US13354923
申请日：2012-01-20
申请人： Takashi KAWASHIMA , Kazuki NAJIMA , Yoshiki NAGATA
发明人： Takashi KAWASHIMA , Kazuki NAJIMA , Yoshiki NAGATA
IPC分类号： H02P6/14
摘要： The two-phase modulation control inverter unit includes a plurality of switching devices, a shunt resistor and a controller. The switching devices drive a three-phase motor. The shunt resistor is connected between a direct-current power supply and the switching devices. The controller reads a voltage applied to the shunt resistor in a read cycle, computes command voltages based on the read voltage, and uses the command voltages and carrier signals to compute three control signals. The read cycle corresponds to two or more signal cycles of each carrier signal. Each control signal has a pulse for each signal cycle of the corresponding carrier signal. The controller integrates a plurality of pulses of each control signal in the read cycle into one or more pulses. The controller reads a voltage applied to the shunt resistor at the time of outputting of the integrated one or more pulses in the next read cycle.
摘要翻译： 两相调制控制逆变器单元包括多个开关装置，分流电阻器和控制器。 开关器件驱动三相电机。 分流电阻连接在直流电源和开关器件之间。 控制器在读周期中读取施加到分流电阻器的电压，根据读取电压计算指令电压，并使用指令电压和载波信号计算三个控制信号。 读周期对应于每个载波信号的两个或多个信号周期。 每个控制信号具有对应载波信号的每个信号周期的脉冲。 控制器将读周期中的每个控制信号的多个脉冲集成到一个或多个脉冲中。 控制器在下一个读取周期中输出积分的一个或多个脉冲时读取施加到分流电阻器的电压。
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公开(公告)号：US20050260969A1
公开(公告)日：2005-11-24
申请号：US11133521
申请日：2005-05-20
申请人： Yoshiki Nagata , Hironori Ito , Akira Yokoi
发明人： Yoshiki Nagata , Hironori Ito , Akira Yokoi
摘要： A portable radio receiver with an automatic power generator has a ring-shaped receiver body, a coil, a magnetic material, a rechargeable battery and a receiver unit. The coil is wound in proximity to the receiver body. The magnetic material is movably located inside the coil. The rechargeable battery is provided for accumulating electric charge which is generated on the coil as the magnetic material moves. The receiver unit utilizes the rechargeable battery as a power source.
摘要翻译： 具有自动发电机的便携式无线电接收机具有环形接收体，线圈，磁性材料，可充电电池和接收器单元。 线圈缠绕在接收器主体附近。 磁性材料可移动地位于线圈内。 可再充电电池被设置用于在磁性材料移动时积聚在线圈上产生的电荷。 接收器单元利用可充电电池作为电源。
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