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    • 72. 发明授权
    • Reference-voltage generating circuit
    • 基准电压发生电路
    • US6087821A
    • 2000-07-11
    • US412983
    • 1999-10-06
    • Shinichi Kojima
    • Shinichi Kojima
    • G05F3/24G05F3/26H03F1/30H03F3/343G05F3/16
    • G05F3/262G05F3/242
    • Saturation connection is performed between the gate and source of a depletion-type n-channel MOS transistor, and the depletion-type n-channel MOS transistor generates a first constant current. A current-mirror circuit is connected to the depletion-type n-channel MOS transistor, and mirrors the first constant current. A first enhancement-type n-channel MOS transistor generates a first constant voltage which depends on the first constant current, when receiving the first constant current mirrored by the current-mirror circuit and being activated. A first resistance element is connected between the first enhancement-type n-channel MOS transistor and ground. A second enhancement-type n-channel MOS transistor is connected to the first enhancement-type n-channel MOS transistor and the first resistance element, and controls generation of a second constant current in the first resistance element in accordance with activation of the first enhancement-type n-channel MOS transistor. A second resistance element is connected between a power-supply line and the second enhancement-type n-channel MOS transistor, and generates a second constant voltage which depends on the second constant current.
    • 在耗尽型n沟道MOS晶体管的栅极和源极之间进行饱和连接,而耗尽型n沟道MOS晶体管产生第一恒定电流。 电流镜电路连接到耗尽型n沟道MOS晶体管,并反射第一恒定电流。 第一增强型n沟道MOS晶体管当接收到由电流镜电路镜像并被激活的第一恒定电流时,产生取决于第一恒定电流的第一恒定电压。 第一电阻元件连接在第一增强型n沟道MOS晶体管和地之间。 第二增强型n沟道MOS晶体管连接到第一增强型n沟道MOS晶体管和第一电阻元件,并且根据第一增强的激活来控制第一电阻元件中的第二恒定电流的产生 型n沟道MOS晶体管。 第二电阻元件连接在电源线和第二增强型n沟道MOS晶体管之间,并产生依赖于第二恒定电流的第二恒定电压。
    • 80. 发明授权
    • Angle detector, motor drive controller, and motor device
    • 角度检测器,电机驱动控制器和电机装置
    • US09562792B2
    • 2017-02-07
    • US14693247
    • 2015-04-22
    • Shinichi KojimaKatsuhisa Furuse
    • Shinichi KojimaKatsuhisa Furuse
    • H02K29/12G01B7/00G01D5/244G01D5/14G01D5/247G01D3/024
    • G01D5/24485G01D3/024G01D5/145G01D5/247
    • An angle detector includes an intersection phase detector to compare each pair of multiple sensor signals or multiple sensor processed signals generate and output each intersection phase detection signal indicating a phase at which the signal level difference of the each pair is a first maximum hysteresis error after signal levels of signals of the each pair match, an intersection level detector to detect each intersection level and generate and output multiple intersection level signals indicating the detected intersection level, a signal selector to single out a selection signal of the either of the multiple sensor signals or the multiple sensor processed signals; a phase detector to detect that a signal level of the selection signal selected by the signal selector has reached a threshold level and a threshold level adjuster to adjust the threshold level based on the intersection level signal and the first maximum hysteresis error.
    • 角度检测器包括交叉相位检测器,用于比较每对多个传感器信号,或者多个传感器处理信号产生并输出每个交点相位检测信号,每个相位检测信号指示每一对的信号电平差是信号后的第一最大滞后误差 每对信号的电平匹配,交叉点电平检测器,用于检测每个交叉电平,并产生并输出指示所检测的交叉电平的多个交叉电平信号;信号选择器,用于单独选择多个传感器信号的选择信号; 多传感器处理信号; 相位检测器,用于检测由信号选择器选择的选择信号的信号电平已经达到阈值电平;以及阈值电平调节器,基于交点电平信号和第一最大滞后误差来调整阈值电平。