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公开(公告)号：US08183715B2
公开(公告)日：2012-05-22
申请号：US12717557
申请日：2010-03-04
申请人： Daisuke Hanawa , Osamu Kawagoe , Tomiyuki Nagai , Hitoshi Tabuchi
发明人： Daisuke Hanawa , Osamu Kawagoe , Tomiyuki Nagai , Hitoshi Tabuchi
IPC分类号： H02J3/00
CPC分类号： H03K17/302 , H03K2217/0018 , Y10T307/50 , Y10T307/729 , Y10T307/826 , Y10T307/839 , Y10T307/865
摘要： A reverse current preventing circuit of an N channel type switching MOS transistor connected between a voltage input terminal and an output terminal to control a conduction state between the voltage input terminal and the output terminal, the circuit comprises: a first MOS transistor connected between a substrate of the switching MOS transistor and a ground point; and a second MOS transistor connected between the substrate of the switching MOS transistor and a point having a piece of predetermined constant potential higher than that of the ground point, wherein the piece of predetermined constant potential higher than that of the ground point is applied to the substrate of the switching MOS transistor while the switching MOS transistor is made to be in its on-state, and ground potential is applied to the substrate of the switching MOS transistor while the switching MOS transistor is made to be in its off-state.
摘要翻译： 连接在电压输入端子和输出端子之间的N沟道型开关MOS晶体管的反向电流防止电路，用于控制电压输入端子与输出端子之间的导通状态，该电路包括：第一MOS晶体管，连接在基板 的开关MOS晶体管和接地点; 连接在开关MOS晶体管的基板和具有比接地点的预定电位高的一段预定的恒定电位的点之间的第二MOS晶体管，其中高于接地点的预定恒定电位的那一段被施加到 开关MOS晶体管的基板，同时使开关MOS晶体管处于导通状态，并且将开关MOS晶体管的接地电位施加到开关MOS晶体管的基板，同时使开关MOS晶体管处于其截止状态。
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公开(公告)号：US20050169022A1
公开(公告)日：2005-08-04
申请号：US10984067
申请日：2004-11-09
申请人： Junji Takeshita , Masayuki Suzuki , Keisuke Yamazato , Tomomitsu Ohara , Tomiyuki Nagai , Naoshi Tokuda
发明人： Junji Takeshita , Masayuki Suzuki , Keisuke Yamazato , Tomomitsu Ohara , Tomiyuki Nagai , Naoshi Tokuda
CPC分类号： H02M1/36 , H02M3/155 , H02M3/158 , H05B33/0815 , H05B33/0818 , H05B33/0824
摘要： A power supply circuit is disclosed that includes a coil with first and second ends having supply voltage applied to the first end, a first switching element connected between the second end of the coil and ground, a second switching or diode element supplying current to a load after rectifying the current in accordance with voltage generated at the connection of the coil and the first switching element, a driver circuit switching at least the first switching element, a third switching element connected in series to the load, and a power supply stop circuit switching off the first element so as to stop supplying power to the load and switching off the third element so as to stop supplying the current to the load in accordance with an external signal.
摘要翻译： 公开了一种电源电路，其包括具有施加到第一端的电源电压的第一和第二端的线圈，连接在线圈的第二端和地之间的第一开关元件，向负载提供电流的第二开关或二极管元件 在根据在线圈和第一开关元件的连接处产生的电压对电流进行整流之后，至少切换第一开关元件的开关元件，与负载串联连接的第三开关元件，以及电源停止电路开关 关闭第一元件，以便停止向负载供电并关闭第三元件，以便根据外部信号停止向负载提供电流。
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公开(公告)号：US11549972B2
公开(公告)日：2023-01-10
申请号：US17187615
申请日：2021-02-26
申请人： Hitoshi Tabuchi , Masaru Hirai , Tomiyuki Nagai , Kenya Tokuda
发明人： Hitoshi Tabuchi , Masaru Hirai , Tomiyuki Nagai , Kenya Tokuda
IPC分类号： H02J7/00 , G01R19/165 , B60L58/18 , G01R15/04 , G01R31/36 , G01R31/3835
摘要： A voltage detection circuit including a voltage input terminal, a voltage dividing circuit, a voltage comparison circuit, an output terminal, a detection voltage adjustment terminal, a voltage-current conversion circuit, and a constant current source. A voltage to be monitored is input to the voltage input terminal. The voltage dividing circuit includes series resistors between the voltage input terminal and a constant voltage terminal. The voltage comparison circuit compares a voltage divided by the voltage dividing circuit with a predetermined voltage. The comparison result is output from the output terminal. An external resistor is connected to the detection voltage adjustment terminal. The voltage-current conversion circuit is provided between the detection voltage adjustment terminal and the voltage dividing circuit. The constant current source is connected between an internal power supply voltage terminal and the detection voltage adjustment terminal.
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4.发明申请公开(公告)号：US20120043952A1
公开(公告)日：2012-02-23
申请号：US13188744
申请日：2011-07-22
申请人： Takehito Mishima , Tomiyuki Nagai
发明人： Takehito Mishima , Tomiyuki Nagai
CPC分类号： H01L27/0623 , H01L27/0635 , H01L27/0823 , H01L27/0921 , H02M3/158 , H02M2001/0009
摘要： A semiconductor integrated circuit includes a current mirror having a predetermined input-output ratio and including a first transistor configured to receive an input current and a second transistor configured to output an output current, and an output transistor configured to generate a reference voltage according to the output current of the current mirror. The value of the output current is greater than the value of the input current, and the total area of one or more collector regions of the first transistor is substantially the same as the total area of one or more collector regions of the second transistor.
摘要翻译： 半导体集成电路包括具有预定输入输出比的电流镜，并且包括被配置为接收输入电流的第一晶体管和被配置为输出输出电流的第二晶体管，以及输出晶体管，被配置为根据 电流镜的输出电流。 输出电流的值大于输入电流的值，第一晶体管的一个或多个集电极区域的总面积基本上与第二晶体管的一个或多个集电极区域的总面积相同。
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公开(公告)号：US20100225169A1
公开(公告)日：2010-09-09
申请号：US12717557
申请日：2010-03-04
申请人： Daisuke Hanawa , Osamu Kawagoe , Tomiyuki Nagai , Hitoshi Tabuchi
发明人： Daisuke Hanawa , Osamu Kawagoe , Tomiyuki Nagai , Hitoshi Tabuchi
CPC分类号： H03K17/302 , H03K2217/0018 , Y10T307/50 , Y10T307/729 , Y10T307/826 , Y10T307/839 , Y10T307/865
摘要： A reverse current preventing circuit of an N channel type switching MOS transistor connected between a voltage input terminal and an output terminal to control a conduction state between the voltage input terminal and the output terminal, the circuit comprises: a first MOS transistor connected between a substrate of the switching MOS transistor and a ground point; and a second MOS transistor connected between the substrate of the switching MOS transistor and a point having a piece of predetermined constant potential higher than that of the ground point, wherein the piece of predetermined constant potential higher than that of the ground point is applied to the substrate of the switching MOS transistor while the switching MOS transistor is made to be in its on-state, and ground potential is applied to the substrate of the switching MOS transistor while the switching MOS transistor is made to be in its off-state.
摘要翻译： 连接在电压输入端子和输出端子之间的N沟道型开关MOS晶体管的反向电流防止电路，用于控制电压输入端子与输出端子之间的导通状态，该电路包括：第一MOS晶体管，连接在基板 的开关MOS晶体管和接地点; 连接在开关MOS晶体管的基板和具有比接地点的预定电位高的一段预定的恒定电位的点之间的第二MOS晶体管，其中高于接地点的预定恒定电位的那一段被施加到 开关MOS晶体管的基板，同时使开关MOS晶体管处于导通状态，并且将开关MOS晶体管的接地电位施加到开关MOS晶体管的基板，同时使开关MOS晶体管处于其截止状态。
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公开(公告)号：US20210293859A1
公开(公告)日：2021-09-23
申请号：US17187615
申请日：2021-02-26
申请人： Hitoshi TABUCHI , Masaru HIRAI , Tomiyuki NAGAI , Kenya TOKUDA
发明人： Hitoshi TABUCHI , Masaru HIRAI , Tomiyuki NAGAI , Kenya TOKUDA
IPC分类号： G01R19/165 , B60L58/18 , G01R31/36 , G01R15/04 , H02J7/00
摘要： A voltage detection circuit including a voltage input terminal, a voltage dividing circuit, a voltage comparison circuit, an output terminal, a detection voltage adjustment terminal, a voltage-current conversion circuit, and a constant current source. A voltage to be monitored is input to the voltage input terminal. The voltage dividing circuit includes series resistors between the voltage input terminal and a constant voltage terminal. The voltage comparison circuit compares a voltage divided by the voltage dividing circuit with a predetermined voltage. The comparison result is output from the output terminal. An external resistor is connected to the detection voltage adjustment terminal. The voltage-current conversion circuit is provided between the detection voltage adjustment terminal and the voltage dividing circuit. The constant current source is connected between an internal power supply voltage terminal and the detection voltage adjustment terminal.
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7.发明授权公开(公告)号：US08674677B2
公开(公告)日：2014-03-18
申请号：US13188744
申请日：2011-07-22
申请人： Takehito Mishima , Tomiyuki Nagai
发明人： Takehito Mishima , Tomiyuki Nagai
CPC分类号： H01L27/0623 , H01L27/0635 , H01L27/0823 , H01L27/0921 , H02M3/158 , H02M2001/0009
摘要： A semiconductor integrated circuit includes a current mirror having a predetermined input-output ratio and including a first transistor configured to receive an input current and a second transistor configured to output an output current, and an output transistor configured to generate a reference voltage according to the output current of the current mirror. The value of the output current is greater than the value of the input current, and the total area of one or more collector regions of the first transistor is substantially the same as the total area of one or more collector regions of the second transistor.
摘要翻译： 半导体集成电路包括具有预定输入输出比率的电流镜，并且包括被配置为接收输入电流的第一晶体管和被配置为输出输出电流的第二晶体管，以及输出晶体管，被配置为根据 电流镜的输出电流。 输出电流的值大于输入电流的值，第一晶体管的一个或多个集电极区域的总面积基本上与第二晶体管的一个或多个集电极区域的总面积相同。
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公开(公告)号：US20100194369A1
公开(公告)日：2010-08-05
申请号：US12695342
申请日：2010-01-28
IPC分类号： G05F1/618
CPC分类号： H02M3/156
摘要： A switching control circuit for controlling on/off of a switching element for driving an inductor for voltage conversion, the switching control circuit including: a voltage comparator for determining whether an output voltage of the inductor is in a first state where the output voltage is equal to or higher than a predetermined electric potential or in a second state where the output voltage is lower than the predetermined electric potential; a timing determination unit for determining an on-timing to turn on the switching element based on a clock signal having a predetermined frequency even when the output voltage is in the first state; and a drive control circuit for generating a driving signal to turn on or turn off the switching element based on an output signal of the timing determination unit.
摘要翻译： 一种用于控制用于驱动用于电压转换的电感器的开关元件的导通/截止的开关控制电路，所述开关控制电路包括：电压比较器，用于确定所述电感器的输出电压是否处于所述输出电压相等的第一状态 达到或高于预定电位或输出电压低于预定电位的第二状态; 定时确定单元，用于即使当输出电压处于第一状态时，也可以基于具有预定频率的时钟信号来确定导通开关元件的导通时间; 以及驱动控制电路，用于根据定时确定单元的输出信号产生驱动信号以接通或关断开关元件。
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公开(公告)号：US07205727B2
公开(公告)日：2007-04-17
申请号：US10984067
申请日：2004-11-09
申请人： Junji Takeshita , Masayuki Suzuki , Keisuke Yamazato , Tomomitsu Ohara , Tomiyuki Nagai , Naoshi Tokuda
发明人： Junji Takeshita , Masayuki Suzuki , Keisuke Yamazato , Tomomitsu Ohara , Tomiyuki Nagai , Naoshi Tokuda
IPC分类号： H05B37/02
CPC分类号： H02M1/36 , H02M3/155 , H02M3/158 , H05B33/0815 , H05B33/0818 , H05B33/0824
摘要： A power supply circuit is disclosed that includes a coil with first and second ends having supply voltage applied to the first end, a first switching element connected between the second end of the coil and ground, a second switching or diode element supplying current to a load after rectifying the current in accordance with voltage generated at the connection of the coil and the first switching element, a driver circuit switching at least the first switching element, a third switching element connected in series to the load, and a power supply stop circuit switching off the first element so as to stop supplying power to the load and switching off the third element so as to stop supplying the current to the load in accordance with an external signal.
摘要翻译： 公开了一种电源电路，其包括具有施加到第一端的电源电压的第一和第二端的线圈，连接在线圈的第二端和地之间的第一开关元件，向负载提供电流的第二开关或二极管元件 在根据在线圈和第一开关元件的连接处产生的电压对电流进行整流之后，至少切换第一开关元件的开关元件，与负载串联连接的第三开关元件，以及电源停止电路开关 关闭第一元件，以便停止向负载供电并关闭第三元件，以便根据外部信号停止向负载提供电流。
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