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    • 3. 发明授权
    • Semiconductor integrated circuit using band-gap reference circuit
    • 半导体集成电路采用带隙参考电路
    • US07034514B2
    • 2006-04-25
    • US10808532
    • 2004-03-25
    • Suguru TachibanaTatsuo KatoTomonari Morishita
    • Suguru TachibanaTatsuo KatoTomonari Morishita
    • G05F3/16G05F3/20
    • G05F3/30
    • A semiconductor device is disclosed including a current generator circuit that generates a first current substantially proportional to an absolute temperature, the first current being determined by a size ratio of a MOS transistor, and by a resistor; and a starting-up circuit that causes the current generator circuit to generate the first current at a stable working point of the current generator circuit, wherein while the current generator circuit operates at the stable working point, a current that flows through the starting-up circuit is determined by a diffusion resistance and a MOS transistor. When the current generator circuit starts operating at a stable operating point, resistance of the diffusion resistor and a MOS transistor connected in series determines a current that flows through a starting-up circuit. According to the above arrangements, the power consumption of the circuit can be reduced by increasing the resistance of the diffused resistor.
    • 公开了一种半导体器件,其包括电流发生器电路,其产生与绝对温度成正比的第一电流,第一电流由MOS晶体管的尺寸比和电阻器确定; 以及启动电路,其使得所述电流发生器电路在所述电流发生器电路的稳定工作点处产生所述第一电流,其中当所述电流发生器电路在所述稳定工作点处工作时,流过所述启动的电流 电路由扩散电阻和MOS晶体管决定。 当电流发生器电路在稳定工作点开始工作时,串联的扩散电阻器和MOS晶体管的电阻决定了流过启动电路的电流。 根据上述配置,可以通过增加扩散电阻器的电阻来降低电路的功耗。
    • 4. 发明申请
    • Semiconductor integrated circuit
    • 半导体集成电路
    • US20050088163A1
    • 2005-04-28
    • US10808532
    • 2004-03-25
    • Suguru TachibanaTatsuo KatoTomonari Morishita
    • Suguru TachibanaTatsuo KatoTomonari Morishita
    • H01L27/04G05F1/40G05F3/24G05F3/30H01L21/822H03F3/345
    • G05F3/30
    • A semiconductor device is disclosed including a current generator circuit that generates a first current substantially proportional to an absolute temperature, the first current being determined by a size ratio of a MOS transistor, and by a resistor; and a starting-up circuit that causes the current generator circuit to generate the first current at a stable working point of the current generator circuit, wherein while the current generator circuit operates at the stable working point, a current that flows through the starting-up circuit is determined by a diffusion resistance and a MOS transistor. When the current generator circuit starts operating at a stable operating point, resistance of the diffusion resistor and a MOS transistor connected in series determines a current that flows through a starting-up circuit. According to the above arrangements, the power consumption of the circuit can be reduced by increasing the resistance of the diffused resistor.
    • 公开了一种半导体器件,其包括电流发生器电路,其产生与绝对温度成正比的第一电流,第一电流由MOS晶体管的尺寸比和电阻器确定; 以及启动电路,其使得所述电流发生器电路在所述电流发生器电路的稳定工作点处产生所述第一电流,其中当所述电流发生器电路在所述稳定工作点处工作时,流过所述启动的电流 电路由扩散电阻和MOS晶体管决定。 当电流发生器电路在稳定工作点开始工作时,串联的扩散电阻器和MOS晶体管的电阻决定了流过启动电路的电流。 根据上述配置,可以通过增加扩散电阻器的电阻来降低电路的功耗。
    • 6. 发明授权
    • Analog switch circuit
    • 模拟开关电路
    • US06842063B2
    • 2005-01-11
    • US10625738
    • 2003-07-24
    • Suguru TachibanaTatsuo KatoHideo Nunokawa
    • Suguru TachibanaTatsuo KatoHideo Nunokawa
    • H03K17/08H03K17/06H03K17/687H03K17/62
    • H03K17/6872H03K17/063H03K17/6874
    • An analog switch circuit with superior breakdown voltage characteristics that can operate at a high speed at a low power supply voltage. The analog switch circuit includes a comparator circuit for inputting and comparing an analog input signal input to an analog switch section and a reference signal. If the input potential of the analog input signal is lower than the reference potential of the reference signal, a voltage boost circuit sets a potential of a gate of an n MOS transistor included in the analog switch section to a potential of positive power supply voltage. If the input potential of the analog input signal is higher than the reference potential of the reference signal, the voltage boost circuit boosts the potential of the gate to a potential higher than the potential of power supply voltage.
    • 具有优异的击穿电压特性的模拟开关电路,可在低电源电压下高速运行。 模拟开关电路包括用于输入和比较输入到模拟开关部分的模拟输入信号和参考信号的比较器电路。 如果模拟输入信号的输入电位低于参考信号的参考电位,则升压电路将模拟开关部分中包括的n个MOS晶体管的栅极的电位设置为正电源电压的电位。 如果模拟输入信号的输入电位高于参考信号的参考电位,则升压电路将栅极的电位升高到高于电​​源电压的电位。
    • 7. 发明授权
    • A/D converter
    • A / D转换器
    • US06714151B2
    • 2004-03-30
    • US10465549
    • 2003-06-20
    • Suguru TachibanaTatsuo KatoHideo Nunokawa
    • Suguru TachibanaTatsuo KatoHideo Nunokawa
    • H03M112
    • H03M1/68H03M1/468H03M1/765H03M1/804
    • An A/D converter includes a capacitor type D/A conversion circuit including a capacitor array constituted of a plurality of capacitors for sampling an input potential and storing electric charge, a first resistor type D/A conversion circuit for generating a desired potential by potential division, a second resistor type D/A conversion circuit for generating a desired potential by potential division, a first signal path for adding an output of the first resistor type D/A conversion circuit to an output of the capacitor type D/A conversion circuit by capacity coupling; a second signal path for adding an output of the second resistor type D/A conversion circuit to an output of the capacitor type D/A conversion circuit by capacity coupling, and a comparing circuit for determining whether an output potential of the capacitor type D/A conversion circuit is higher or lower than an input potential, and thereby the circuit with processing time of A/D conversion being shortened can be provided.
    • A / D转换器包括电容器型D / A转换电路,其包括由用于对输入电位进行采样并存储电荷的多个电容器构成的电容器阵列,用于通过电位产生所需电位的第一电阻器D / A转换电路 用于通过电势分割产生所需电位的第二电阻器D / A转换电路,用于将第一电阻器型D / A转换电路的输出与电容器类型D / A转换电路的输出相加的第一信号路径 通过容量耦合; 第二信号路径,用于通过电容耦合将第二电阻器D / A转换电路的输出加到电容器类型D / A转换电路的输出;以及比较电路,用于确定电容器类型D / A转换电路高于或低于输入电位,从而可以提供A / D转换处理时间缩短的电路。