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    • 1. 发明授权
    • Variable capacitance reactance circuit
    • 可变容抗电路
    • US4602224A
    • 1986-07-22
    • US684329
    • 1984-12-20
    • Sohei ArimotoHitoshi Miyashita
    • Sohei ArimotoHitoshi Miyashita
    • H03C3/14H03H11/48H03B5/32H03C3/20H03H11/00
    • H03H11/483
    • A circuit having an effective output capacitance the value of which can be varied over a predetermined range of values includes first and second differential amplifiers. The differential inputs of the second differential amplifier are connected to the differential outputs of the first differential amplifier, the latter of which receives a variable control signal. The second differential amplifier includes a pair of transistors the emitters of which are AC coupled to ground. A capacitor is coupled between the base and collector of one of the pair of transistors, the collector of which is coupled to the output of the circuit. A diode is AC coupled between the base and ground of the one transistor whereby the impedance thereof is varied in direct relationship to the conduction of the one transistor in response to the control signal thereby causing the value of the output capacitance of the circuit to be varied.
    • 具有可以在预定值范围内变化的有效输出电容的电路包括第一和第二差分放大器。 第二差分放大器的差分输入连接到第一差分放大器的差分输出,第一差分放大器接收可变控制信号。 第二差分放大器包括其发射极被交流耦合到地的一对晶体管。 电容器耦合在该对晶体管之一的基极和集电极之间,其集电极耦合到电路的输出端。 二极管被AC耦合在一个晶体管的基极和地之间,由此其阻抗与一个晶体管的响应于控制信号的导通直接相关变化,从而导致电路的输出电容的值变化 。
    • 2. 发明申请
    • Method and apparatus for switching regulator capable of quick feedback from load
    • 用于开关稳压器的方法和装置,其能够从负载快速反馈
    • US20070069707A1
    • 2007-03-29
    • US11527937
    • 2006-09-26
    • Hitoshi MiyashitaKenji Sugiura
    • Hitoshi MiyashitaKenji Sugiura
    • G05F1/00
    • H02M3/1588Y02B70/1466
    • This patent specification describes a power adapter which includes a first amplifier configured to amplify a voltage difference between a voltage proportional to an output voltage of a switching regulator and a first reference voltage, a current detector configured to detect a current proportional to an output current of the switching regulator, a second amplifier configured to amplify an output signal from the current detector, a first converter configured to convert an output voltage of the first amplifier to a first current signal, a second converter configured to convert an output voltage of the second amplifier to a second current signal, an oscillator configured to oscillate with rectangular pulses and a controller configured to modulate an oscillation signal of the oscillator in accordance with the first and second current signals output from the first and second converters.
    • 该专利说明书描述了一种电源适配器,其包括第一放大器,其被配置为放大与开关调节器的输出电压成比例的电压与第一参考电压之间的电压差;电流检测器,被配置为检测与输出电流成比例的电流 开关稳压器,被配置为放大来自电流检测器的输出信号的第二放大器,被配置为将第一放大器的输出电压转换为第一电流信号的第一转换器,被配置为转换第二放大器的输出电压的第二转换器 至第二电流信号,配置成以矩形脉冲振荡的振荡器和配置成根据从第一和第二转换器输出的第一和第二电流信号调制振荡器的振荡信号的控制器。
    • 5. 发明授权
    • Method and apparatus for switching regulator capable of quick feedback from load
    • 用于开关稳压器的方法和装置,其能够从负载快速反馈
    • US07646187B2
    • 2010-01-12
    • US11527937
    • 2006-09-26
    • Hitoshi MiyashitaKenji Sugiura
    • Hitoshi MiyashitaKenji Sugiura
    • G05F1/40
    • H02M3/1588Y02B70/1466
    • This patent specification describes a power adapter which includes a first amplifier configured to amplify a voltage difference between a voltage proportional to an output voltage of a switching regulator and a first reference voltage, a current detector configured to detect a current proportional to an output current of the switching regulator, a second amplifier configured to amplify an output signal from the current detector, a first converter configured to convert an output voltage of the first amplifier to a first current signal, a second converter configured to convert an output voltage of the second amplifier to a second current signal, an oscillator configured to oscillate with rectangular pulses and a controller configured to modulate an oscillation signal of the oscillator in accordance with the first and second current signals output from the first and second converters.
    • 该专利说明书描述了一种电源适配器,其包括第一放大器,其被配置为放大与开关调节器的输出电压成比例的电压与第一参考电压之间的电压差;电流检测器,被配置为检测与输出电流成比例的电流 开关稳压器,被配置为放大来自电流检测器的输出信号的第二放大器,被配置为将第一放大器的输出电压转换为第一电流信号的第一转换器,被配置为转换第二放大器的输出电压的第二转换器 至第二电流信号,配置成以矩形脉冲振荡的振荡器和配置成根据从第一和第二转换器输出的第一和第二电流信号调制振荡器的振荡信号的控制器。