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公开(公告)号：US08531167B2
公开(公告)日：2013-09-10
申请号：US13343824
申请日：2012-01-05
申请人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
发明人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A DC-DC converter has an error amplifier that amplifies a potential difference between a first voltage based on an output voltage at the output terminal and a reference voltage, and outputs a resultant error amplified signal; a differential detecting circuit that senses an inclination of a temporal change of the output voltage by differentiating the first voltage, outputs a control signal according to a result of the sensing; and a PWM generating circuit that compares a synthetic signal obtained by conducting computation on the amplified error signal and the control signal with a periodically changing comparison signal, and outputs a PWM signal having a duty ratio controlled according to a result of the comparison.
摘要翻译： DC-DC转换器具有误差放大器，其放大基于输出端子的输出电压的第一电压与基准电压之间的电位差，并输出合成误差放大信号; 差分检测电路，通过对第一电压进行微分来检测输出电压的时间变化的倾斜度，根据检测结果输出控制信号; 以及PWM生成电路，其通过对经放大的误差信号进行计算而获得的合成信号与控制信号与周期性变化的比较信号进行比较，并输出根据比较结果控制的占空比的PWM信号。
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2.发明授权Voltage-controlled oscillator, phase synchronization circuit and signal processing circuit 有权压控振荡器，相位同步电路和信号处理电路公开(公告)号：US06344778B1
公开(公告)日：2002-02-05
申请号：US09596056
申请日：2000-06-16
IPC分类号： H03B524
CPC分类号： H03L7/0805 , G11B20/1403 , H03B5/24 , H03L5/00 , H03L7/099
摘要： A delay-time variable filter delays an input signal by a desired time according to a control signal from a control input node and outputs the delayed input signal, and a positive feedback loop circuit changes the output signal (sinusoidal wave signal) from this filter, and provides a positive feedback of the binary pulse signal to the input side of the filter at a desired level for carrying out an oscillation. This positive feedback loop circuit includes a circuit for changing the signal into a binary signal and providing a positive feedback of the binary signal to the input of the filter by limiting the signal at a desired amplitude. As the delay-time variable filter, a quartic Butterworth low-pass filter is used, for example. As the positive feedback loop circuit, there is used a voltage comparator circuit that changes an input signal into a binary signal and outputs a pulse signal of a desired amplitude.
摘要翻译： 延迟时间可变滤波器根据来自控制输入节点的控制信号将输入信号延迟所需时间，并输出延迟输入信号，正反馈环路电路改变来自该滤波器的输出信号（正弦波信号） 并且将二进制脉冲信号的正反馈提供给滤波器的输入侧，以实现振荡的期望水平。 该正反馈环路电路包括用于将信号改变为二进制信号的电路，并通过将信号限制在期望的幅度来提供二进制信号的正反馈给滤波器的输入。 作为延迟时间可变滤波器，例如使用四分之一巴特沃思低通滤波器。 作为正反馈环路电路，使用将输入信号变更为二进制信号并输出期望幅度的脉冲信号的电压比较电路。
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公开(公告)号：US08115467B2
公开(公告)日：2012-02-14
申请号：US12721754
申请日：2010-03-11
申请人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
发明人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A DC-DC converter has an error amplifier that amplifies a potential difference between a first voltage based on an output voltage at the output terminal and a reference voltage, and outputs a resultant error amplified signal; a differential detecting circuit that senses an inclination of a temporal change of the output voltage by differentiating the first voltage, outputs a control signal according to a result of the sensing; and a PWM generating circuit that compares a synthetic signal obtained by conducting computation on the amplified error signal and the control signal with a periodically changing comparison signal, and outputs a PWM signal having a duty ratio controlled according to a result of the comparison.
摘要翻译： DC-DC转换器具有误差放大器，其放大基于输出端子的输出电压的第一电压与基准电压之间的电位差，并输出合成误差放大信号; 差分检测电路，通过对第一电压进行微分来检测输出电压的时间变化的倾斜度，根据检测结果输出控制信号; 以及PWM生成电路，其通过对经放大的误差信号进行计算而获得的合成信号与控制信号与周期性变化的比较信号进行比较，并输出根据比较结果控制的占空比的PWM信号。
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公开(公告)号：US20100301825A1
公开(公告)日：2010-12-02
申请号：US12721754
申请日：2010-03-11
申请人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
发明人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A DC-DC converter has an error amplifier that amplifies a potential difference between a first voltage based on an output voltage at the output terminal and a reference voltage, and outputs a resultant error amplified signal; a differential detecting circuit that senses an inclination of a temporal change of the output voltage by differentiating the first voltage, outputs a control signal according to a result of the sensing; and a PWM generating circuit that compares a synthetic signal obtained by conducting computation on the amplified error signal and the control signal with a periodically changing comparison signal, and outputs a PWM signal having a duty ratio controlled according to a result of the comparison.
摘要翻译： DC-DC转换器具有误差放大器，其放大基于输出端子的输出电压的第一电压与基准电压之间的电位差，并输出合成误差放大信号; 差分检测电路，通过对第一电压进行微分来检测输出电压的时间变化的倾斜度，根据检测结果输出控制信号; 以及PWM生成电路，其通过对经放大的误差信号进行计算而获得的合成信号与控制信号与周期性变化的比较信号进行比较，并输出根据比较结果控制的占空比的PWM信号。
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公开(公告)号：US20120098515A1
公开(公告)日：2012-04-26
申请号：US13343824
申请日：2012-01-05
申请人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
发明人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
IPC分类号： G05F1/00
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A DC-DC converter has an error amplifier that amplifies a potential difference between a first voltage based on an output voltage at the output terminal and a reference voltage, and outputs a resultant error amplified signal; a differential detecting circuit that senses an inclination of a temporal change of the output voltage by differentiating the first voltage, outputs a control signal according to a result of the sensing; and a PWM generating circuit that compares a synthetic signal obtained by conducting computation on the amplified error signal and the control signal with a periodically changing comparison signal, and outputs a PWM signal having a duty ratio controlled according to a result of the comparison.
摘要翻译： DC-DC转换器具有误差放大器，其放大基于输出端子的输出电压的第一电压与基准电压之间的电位差，并输出合成误差放大信号; 差分检测电路，通过对第一电压进行微分来检测输出电压的时间变化的倾斜度，根据检测结果输出控制信号; 以及PWM生成电路，其通过对经放大的误差信号进行计算而获得的合成信号与控制信号与周期性变化的比较信号进行比较，并输出根据比较结果控制的占空比的PWM信号。
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