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    • 7. 发明授权
    • Electric vehicle motor controller with temperature variation compensation
    • 电动汽车电机控制器,具有温度变化补偿
    • US06392376B1
    • 2002-05-21
    • US09657639
    • 2000-09-07
    • Masaru KobayashiKiyoharu AnzaiHirotoshi Maekawa
    • Masaru KobayashiKiyoharu AnzaiHirotoshi Maekawa
    • H02H708
    • B60L15/025B60L2240/525H02P21/22Y02T10/643
    • A motor controller improves reliability and enables stable and high-accuracy control by detecting a current value running through the motor detected by current detectors by preventing changes in ambient environment, particularly the influence of temperature variations. The arithmetic and control unit of the motor controller has a storage unit for storing current detection characteristic compensation data for compensating for fluctuations in the characteristics of the current detectors, a current value computing device for computing current values by correcting detection currents from the current detectors, and a device for computing and generating drive signals for controlling the switching of the power elements based on the computed current values.
    • 电机控制器通过防止周围环境的变化,特别是温度变化的影响,检测通过电流检测器检测到的电机的电流值,提高了可靠性并实现了稳定和高精度的控制。 电动机控制器的算术和控制单元具有存储单元,用于存储用于补偿电流检测器的特性波动的电流检测特性补偿数据,用于通过校正来自电流检测器的检测电流来计算电流值的电流值计算装置, 以及用于基于所计算的电流值来计算和产生用于控制功率元件的切换的驱动信号的装置。
    • 8. 发明授权
    • Analog signal detecting circuit, and AC side current detector of semiconductor power conversion device
    • 模拟信号检测电路和半导体功率转换装置的交流侧电流检测器
    • US06181587B2
    • 2001-01-30
    • US09572911
    • 2000-05-17
    • Yuuji KuramotoHirotoshi MaekawaKiyoharu Anzai
    • Yuuji KuramotoHirotoshi MaekawaKiyoharu Anzai
    • H02M7979
    • G01R19/2513G01R31/42H02M7/53875H02M2001/0009
    • Conventionally, there is a problem that it is impossible to provide an analog signal detecting circuit having high reliability and long lifetime under a bad environment since a photocoupler is used for electrical insulation of a digital signal. Then, an analog signal detecting circuit is provided with a carrier wave generating unit for generating a carrier wave, a pulse width modulating unit for pulse width modulating an analog signal inputted from the signal input terminal by using the carrier wave generated by the carrier wave generating unit and for outputting a digital signal, a reverse level shift HVIC for transmitting the digital signal from one power supply system to the other power supply system, and a demodulation unit for demodulating the digital signal transmitted to the other power supply system into an analog signal and for outputting it to a signal output terminal. As a result, even in the case where reference potentials are different from each other at signal input/output terminals, an analog signal can be detected.
    • 通常,由于光电耦合器用于数字信号的电绝缘,所以存在不能在不良环境下提供具有高可靠性和长寿命的模拟信号检测电路的问题。 然后,模拟信号检测电路设置有用于产生载波的载波产生单元,用于通过使用由载波生成产生的载波对从信号输入端输入的模拟信号进行脉宽调制的脉冲宽度调制单元 单元并用于输出数字信号;反相电平移位HVIC,用于将数字信号从一个电源系统发送到另一个电源系统;以及解调单元,用于将发送到另一个电源系统的数字信号解调为模拟信号 并将其输出到信号输出端子。 结果,即使在信号输入/输出端子处参考电位彼此不同的情况下,也可以检测模拟信号。