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    SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
    1.
    发明公开
    SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE 审中-公开

    公开(公告)号：US20240146300A1

    公开(公告)日：2024-05-02

    申请号：US18495945

    申请日：2023-10-27

    申请人： Yoichi TAKANO ,  Kohei SAKURAI

    发明人： Yoichi TAKANO ,  Kohei SAKURAI

    IPC分类号： H03K17/687 ,  H03K19/20

    CPC分类号： H03K17/6871 ,  H03K19/20 ,  H03K2217/0054

    摘要： Disclosed is a semiconductor integrated circuit device including: a switching transistor connected between a voltage input terminal where DC voltage is input and a voltage output terminal; a discharging transistor connected between the voltage output terminal and a ground point; an external terminal where a control signal of an external device is input; and a control circuit including a logic circuit and controlling and turning on or off the switching transistor and the discharging transistor based on the control signal. Upon the control signal input to the external terminal being at a first logic level, the logic circuit generates a signal that turns on the switching transistor and turns off the discharging transistor. Upon the control signal being at a second logic level, the logic circuit generates a signal that turns off the switching transistor and turns on the discharging transistor.

    Current detecting circuit and switching circuit
    2.
    发明授权
    Current detecting circuit and switching circuit 有权

    公开(公告)号：US11892481B2

    公开(公告)日：2024-02-06

    申请号：US17446480

    申请日：2021-08-31

    申请人： Yoichi Takano ,  Kohei Sakurai

    发明人： Yoichi Takano ,  Kohei Sakurai

    IPC分类号： G01R19/00 ,  H03K17/16 ,  G01R19/10

    CPC分类号： G01R19/0092 ,  H03K17/163 ,  H03K17/166

    摘要： A current detecting circuit includes a first switching element, a second switching element, and a third switching element electrically coupled in series with the first switching element. An output side of the third switching element is electrically coupled to an output terminal. The current detecting circuit includes a current amplifier configured to detect a difference between a first output voltage of the first switching element and a second output voltage of the second switching element. The current amplifier outputs a relative current to be used for detecting an output current that flows out from the output terminal. A ratio of resistance associated with the first switching element to resistance associated with the second switching element is n:1.

    POWER SUPPLY SEMICONDUCTOR INTEGRATED CIRCUIT
    3.
    发明申请
    POWER SUPPLY SEMICONDUCTOR INTEGRATED CIRCUIT 有权

    公开(公告)号：US20220075403A1

    公开(公告)日：2022-03-10

    申请号：US17458048

    申请日：2021-08-26

    申请人： Kohei SAKURAI ,  Shinichiro MAKI

    发明人： Kohei SAKURAI ,  Shinichiro MAKI

    IPC分类号： G05F1/575 ,  G05F3/26 ,  G05F1/573 ,  G05F1/571

    摘要： A power supply semiconductor IC includes: an output transistor connected between a voltage-input terminal and a voltage-output terminal; a control circuit that controls the output transistor based on a feedback voltage of an output voltage; a current-limit circuit that limits an output current of the output transistor such that the output current is not equal to or greater than a current limit; a first transistor constituting a current-mirror circuit with the output transistor; a short-circuit-fault detection circuit that detects a short circuit of the voltage-output terminal based on a voltage across a resistor connected in series to the first transistor; and a first output terminal that outputs a detection result of the short-circuit-fault detection circuit. The current limit is within a detection range of the short-circuit-fault detection circuit. The short-circuit-fault detection circuit detects a short circuit of the voltage-output terminal even while the current limit circuit limits the output current.

    REGULATOR CIRCUIT AND SEMICONDUCTOR DEVICE, AND POWER SUPPLY
    4.
    发明申请
    REGULATOR CIRCUIT AND SEMICONDUCTOR DEVICE, AND POWER SUPPLY 审中-公开

    公开(公告)号：US20190179352A1

    公开(公告)日：2019-06-13

    申请号：US16212491

    申请日：2018-12-06

    申请人： Kohei SAKURAI

    发明人： Kohei SAKURAI

    IPC分类号： G05F1/575 ,  G05F1/565

    摘要： A regulator circuit includes an output controlling transistor and a controller circuit. The output controlling transistor is connected between a voltage input terminal and an output terminal. The controller circuit includes an error amplifier circuit which controls the output controlling transistor according to an output feedback voltage. The error amplifier circuit includes a differential input stage, an output stage and a current increasing/decreasing circuit. The differential input stage includes input transistors and a current source. The output stage includes a current source and a transistor connected in series with the current source and amplifies a potential at one output node of the differential input stage. The current increasing/decreasing circuit includes an element having a temperature characteristic, and increases or decreases a current of the differential input stage or the current of the output stage according to the temperature characteristic.

    POWER CIRCUIT
    5.
    发明申请
    POWER CIRCUIT 有权
    电源电路

    公开(公告)号：US20160197554A1

    公开(公告)日：2016-07-07

    申请号：US14975973

    申请日：2015-12-21

    申请人： Kohei SAKURAI ,  Yoichi TAKANO

    发明人： Kohei SAKURAI ,  Yoichi TAKANO

    IPC分类号： H02M3/158

    CPC分类号： G05F1/56 ,  G01R19/00

    摘要： A power circuit includes an input terminal to which an input voltage is applied; a control element which generates an output voltage obtained by regulating the input voltage; an output terminal from which the output voltage is output; a discharge circuit which discharges by extracting an electric charge from the control element on a side of the output terminal; a drive circuit which generates a drive current for causing the discharge circuit to operate using power of the control element on the side of the input terminal; a detection circuit which detects the output voltage; and a discharge control circuit which decreases a current value of the drive current to a current value enabling the discharge circuit to continuously operate in a case where the detection circuit detects that the output voltage reaches a setup voltage by an operation of the discharge circuit.

    摘要翻译： 电源电路包括施加输入电压的输入端子; 产生通过调节输入电压而获得的输出电压的控制元件; 输出电压输出的输出端子; 放电电路，其通过从所述输出端子侧的所述控制元件提取电荷而放电; 驱动电路，其利用所述输入端子侧的所述控制元件的电力产生使所述放电电路动作的驱动电流; 检测电路的检测电路; 以及放电控制电路，其在检测电路通过放电电路的操作检测到输出电压达到设定电压的情况下，将驱动电流的电流值减小到使得放电电路能够连续工作的电流值。

    Semiconductor integrated circuit for regulator
    6.
    发明授权
    Semiconductor integrated circuit for regulator 有权
    用于调节器的半导体集成电路

    公开(公告)号：US08847569B2

    公开(公告)日：2014-09-30

    申请号：US13277435

    申请日：2011-10-20

    申请人： Akihiro Terada ,  Kohei Sakurai ,  Yoichi Takano

    发明人： Akihiro Terada ,  Kohei Sakurai ,  Yoichi Takano

    IPC分类号： G05F1/00 ,  G05F1/573 ,  G05F1/575

    CPC分类号： G05F1/5735 ,  G05F1/575

    摘要： A regulator includes a transistor connected between an input and an output. A feedback voltage controls the transistor to keep the output voltage constant. A first circuit functions as a comparator to compare a detection voltage from the output of the transistor and the feedback voltage when the output current is higher than a predetermined value, and functions as a buffer when the output current is lower than the predetermined value. A second circuit receives a reference voltage, the feedback voltage, and an output from the first circuit, and generates (i) a difference between the feedback voltage and the first circuit output when the reference voltage is lower than the first circuit output, and (ii) a difference voltage between the feedback voltage and the reference voltage when the reference voltage is higher than the first circuit output, and supplies a control voltage to control the output of the transistor.

    摘要翻译： 调节器包括连接在输入和输出之间的晶体管。 反馈电压控制晶体管以保持输出电压恒定。 当输出电流高于预定值时，第一电路用作比较器以比较来自晶体管的输出的检测电压和反馈电压，并且当输出电流低于预定值时用作缓冲器。 第二电路接收参考电压，反馈电压和来自第一电路的输出，并且当参考电压低于第一电路输出时产生（i）反馈电压与第一电路输出之间的差异，以及（ ii）当参考电压高于第一电路输出时反馈电压和参考电压之间的差值电压，并提供控制电压以控制晶体管的输出。

    Distributed system
    9.
    发明申请
    Distributed system 审中-公开
    分布式系统

    公开(公告)号：US20100039944A1

    公开(公告)日：2010-02-18

    申请号：US12457329

    申请日：2009-06-08

    申请人： Masahiro Matsubara ,  Kohei Sakurai ,  Kotaro Shimamura

    发明人： Masahiro Matsubara ,  Kohei Sakurai ,  Kotaro Shimamura

    IPC分类号： H04L12/26

    CPC分类号： H04L12/417 ,  H04L41/0677 ,  H04L43/0811 ,  H04L43/0817 ,  H04L2012/40241 ,  H04L2012/4026 ,  H04L2012/40273

    摘要： A distributed system performs fault identification using inter-node monitoring so as to locate a fault with high reliability and ensure consistent recognition about the situation of the fault occurrence among nodes. The process is synchronized with a communication cycle. If a system does not need to perform the fault identification as often as every communication cycle, the frequency of the fault identification should be decreased so as to reduce a load for CPU processing and a consumption of a communication band per unit time.A distributed system of the present invention includes plural nodes that are connected to each other via a network. Each of the nodes includes a fault-monitoring section, a transmission and reception section, and a fault-identification section. The fault-monitoring section monitors a fault in other nodes. The transmission and reception section transmits and receives data to detect the fault in other nodes via the network. The fault-identification section identifies which node has the fault based on the data. The fault-monitoring section uses one or more communication cycles as a monitoring period; the communication cycles are synchronized between the nodes.

    摘要翻译： 分布式系统通过节点间监控进行故障识别，定位故障高可靠性，确保节点间故障发生情况的一致性。 该过程与通信周期同步。 如果系统不需要像每个通信周期那样频繁地执行故障识别，则应该减少故障识别的频率，以减少CPU处理的负担和每单位时间的通信频带的消耗。 本发明的分布式系统包括通过网络彼此连接的多个节点。 每个节点包括故障监测部分，发送和接收部分以及故障识别部分。 故障监控部分监控其他节点的故障。 发送和接收部分通过网络发送和接收数据以检测其他节点的故障。 故障识别部分根据数据识别哪个节点有故障。 故障监控部分使用一个或多个通信周期作为监控周期; 通信周期在节点之间同步。

    Electrical Control Unit for an Automobile
    10.
    发明申请
    Electrical Control Unit for an Automobile 有权
    汽车电气控制单元

    公开(公告)号：US20070219671A1

    公开(公告)日：2007-09-20

    申请号：US11752365

    申请日：2007-05-23

    申请人： Kohei SAKURAI ,  Nobuyasu KANEKAWA ,  Mitsuru Watabe ,  Shoji SASAKI ,  Katsuya OYAMA

    发明人： Kohei SAKURAI ,  Nobuyasu KANEKAWA ,  Mitsuru Watabe ,  Shoji SASAKI ,  Katsuya OYAMA

    IPC分类号： G05F1/66

    CPC分类号： F02D41/062 ,  F02D41/1494 ,  F02D41/26 ,  F02N2300/302 ,  G06F1/3215 ,  Y10T307/25 ,  Y10T307/305

    摘要： An electrical control unit for an automobile of which standby current is smaller. In an electrical control unit for an automobile having a microcomputer, an input circuit, a driver circuit, and a power supply circuit, which is started by a wake-up signal from the circuit other than the ignition switch even when the ignition switch of the automobile is cut off, the microcomputer is started by shifting the power supply circuit from an inert state to an active state to generate the voltage for operating the microcomputer, and the predetermined processing is executed.

    摘要翻译： 备用电流较小的汽车用电气控制单元。 在具有微型计算机，输入电路，驱动电路和电源电路的汽车的电气控制单元中，即使当点火开关 汽车被切断，通过将电源电路从惰性状态移动到活动状态来启动微型计算机，以产生用于操作微型计算机的电压，并且执行预定处理。