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    • 1. 发明申请
    • Inverter control circuit and control method thereof
    • 变频器控制电路及其控制方法
    • US20090097287A1
    • 2009-04-16
    • US12285716
    • 2008-10-14
    • Masaki Furuchi
    • Masaki Furuchi
    • H02M7/48
    • H02M7/53873
    • In an inverter control circuit for controlling an inverter circuit, when an analog signal from the inverter circuit is amplified and converted from analog to digital, a timing at which a gain of an amplifier is switched is securely detected, and the gain is switched. An inverter control circuit includes: a timer circuit for generating a PWM signal with which an electric conductive state of a switch device of an inverter circuit is controlled; an amplifier for amplifying and outputting an analog signal generated with a load electric current of the inverter circuit; and a gain control circuit for controlling the switching of the gain of the amplifier in synchronization with an output change timing of the PWM signal.
    • 在用于控制逆变器电路的逆变器控制电路中,当来自逆变器电路的模拟信号被放大并从模拟转换成数字时,安全地检测到放大器的增益被切换的定时,并且增益被切换。 逆变器控制电路包括:定时器电路,用于产生控制逆变器电路的开关装置的导电状态的PWM信号; 放大器,用于放大并输出由逆变器电路的负载电流产生的模拟信号; 以及增益控制电路,用于与PWM信号的输出改变定时同步地控制放大器的增益的切换。
    • 2. 发明授权
    • Delay circuit having a noise reducing function
    • 延迟电路具有降噪功能
    • US6121813A
    • 2000-09-19
    • US19727
    • 1998-02-06
    • Masaki Furuchi
    • Masaki Furuchi
    • G11C11/4076H03K5/13H03H11/26
    • H03K5/13
    • A delay circuit which resists noise present in the power supply or ground includes a waveform modification circuit for varying the rise and fall of inputted pulse signals, and a switch for connecting a power supply and an output terminal when the voltage of the modified waveform exceeds the threshold value related to the power supply voltage. The waveform modification circuit includes a voltage control circuit for varying the output voltage of the waveform modification circuit in accordance with changes in the voltage of the power supply. To reshape a waveform, an input signal is compared with the power supply voltage as a reference value, and the input signal and power supply voltage are switched in accordance with the comparison results. The voltage control circuit changes the output of the waveform modification circuit in accordance with the changes in the reference when noise contained in the power supply voltage is applied to the output of the waveform modification circuit. No malfunctions thus occur when an input signal is compared with the power supply voltage as a reference value in order to reshape a waveform.
    • 抵抗存在于电源或接地中的噪声的延迟电路包括用于改变输入的脉冲信号的上升和下降的波形修改电路,以及当修改波形的电压超过该值时连接电源和输出端子的开关 与电源电压相关的阈值。 波形修正电路包括用于根据电源电压的变化来改变波形修改电路的输出电压的电压控制电路。 为了重构波形,将输入信号与电源电压作为参考值进行比较,并根据比较结果切换输入信号和电源电压。 当电源电压中包含的噪声被施加到波形修改电路的输出端时,电压控制电路根据参考值的变化来改变波形修改电路的输出。 因此当将输入信号与电源电压作为参考值进行比较以便重新形成波形时,不会发生故障。
    • 3. 发明授权
    • Inverter control circuit and control method thereof
    • 变频器控制电路及其控制方法
    • US08139385B2
    • 2012-03-20
    • US12285716
    • 2008-10-14
    • Masaki Furuchi
    • Masaki Furuchi
    • H02M7/5387
    • H02M7/53873
    • In an inverter control circuit for controlling an inverter circuit, when an analog signal from the inverter circuit is amplified and converted from analog to digital, a timing at which a gain of an amplifier is switched is securely detected, and the gain is switched. An inverter control circuit includes: a timer circuit for generating a PWM signal with which an electric conductive state of a switch device of an inverter circuit is controlled; an amplifier for amplifying and outputting an analog signal generated with a load electric current of the inverter circuit; and a gain control circuit for controlling the switching of the gain of the amplifier in synchronization with an output change timing of the PWM signal.
    • 在用于控制逆变器电路的逆变器控制电路中,当来自逆变器电路的模拟信号被放大并从模拟转换成数字时,安全地检测到放大器的增益被切换的定时,并且增益被切换。 逆变器控制电路包括:定时器电路,用于产生控制逆变器电路的开关装置的导电状态的PWM信号; 放大器,用于放大并输出由逆变器电路的负载电流产生的模拟信号; 以及增益控制电路,用于与PWM信号的输出改变定时同步地控制放大器的增益的切换。