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公开(公告)号：US10296034B2
公开(公告)日：2019-05-21
申请号：US16020948
申请日：2018-06-27
申请人： Kohei Sakurai , Yoichi Takano
发明人： Kohei Sakurai , Yoichi Takano
摘要： A negative power supply control circuit which controls a negative voltage regulator circuit based on a positive voltage control signal, the negative power supply control circuit including: a control signal input terminal a negative voltage input terminal; a negative voltage input control signal output terminal; a voltage current conversation circuit; a first current source; and a first clamp circuit, wherein the first clamp circuit clamps a voltage at a first intermediate point between the first clamp circuit and the first current source by limiting a current flowing in the first clamp circuit according to the voltage at the first intermediate point in a period when a current flows in the voltage current conversation circuit, and the negative voltage controls signal is generated based on a voltage or a current in a current path through the voltage current conversation circuit, the first clamp circuit and the first current source.
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2.发明授权公开(公告)号：US08665020B2
公开(公告)日：2014-03-04
申请号：US13175512
申请日：2011-07-01
申请人： Kohei Sakurai , Akihiro Terada , Yoichi Takano
发明人： Kohei Sakurai , Akihiro Terada , Yoichi Takano
CPC分类号： H03F3/45183 , G05F1/565 , H03F3/347 , H03F2203/45528 , H03F2203/45674
摘要： A differential amplifier circuit including: a differential input stage including a pair of differential MOS transistors, a pair of load elements, and a first constant-current source; an output stage including an output MOS transistor and a second constant-current source; a constant-current MOS transistor provided in parallel to one of the first and second constant-current sources; and a boost current controlling MOS transistor in which a potential of a connection node of the output MOS transistor and the second constant-current source is applied to a gate terminal thereof; wherein the boost current controlling MOS transistor is turned on when a voltage inputted to a gate terminal of one of the pair of differential MOS transistors changes, and a current of the constant-current MOS transistor is added to one of the first and second constant-current sources and is allowed to flow.
摘要翻译： 一种差分放大电路，包括：差分输入级，包括一对差分MOS晶体管，一对负载元件和第一恒定电流源; 输出级，包括输出MOS晶体管和第二恒流源; 与第一和第二恒流源中的一个平行设置的恒流MOS晶体管; 以及升压电流控制MOS晶体管，其中输出MOS晶体管和第二恒流源的连接节点的电位被施加到其栅极端子; 其中当输入到所述一对差分MOS晶体管中的一个的栅极端子的电压改变时，所述升压电流控制MOS晶体管导通，并且所述恒定电流MOS晶体管的电流被加到所述第一和第二恒定电流MOS晶体管中的一个， 当前来源并被允许流动。
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公开(公告)号：US09703305B2
公开(公告)日：2017-07-11
申请号：US14975973
申请日：2015-12-21
申请人： Kohei Sakurai , Yoichi Takano
发明人： Kohei Sakurai , Yoichi Takano
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.
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公开(公告)号：US20120001605A1
公开(公告)日：2012-01-05
申请号：US13175512
申请日：2011-07-01
申请人： Kohei Sakurai , Akihiro Terada , Yoichi Takano
发明人： Kohei Sakurai , Akihiro Terada , Yoichi Takano
CPC分类号： H03F3/45183 , G05F1/565 , H03F3/347 , H03F2203/45528 , H03F2203/45674
摘要： A differential amplifier circuit including: a differential input stage including a pair of differential MOS transistors, a pair of load elements, and a first constant-current source; an output stage including an output MOS transistor and a second constant-current source; a constant-current MOS transistor provided in parallel to one of the first and second constant-current sources; and a boost current controlling MOS transistor in which a potential of a connection node of the output MOS transistor and the second constant-current source is applied to a gate terminal thereof; wherein the boost current controlling MOS transistor is turned on when a voltage inputted to a gate terminal of one of the pair of differential MOS transistors changes, and a current of the constant-current MOS transistor is added to one of the first and second constant-current sources and is allowed to flow.
摘要翻译： 一种差分放大电路，包括：差分输入级，包括一对差分MOS晶体管，一对负载元件和第一恒定电流源; 输出级，包括输出MOS晶体管和第二恒流源; 与第一和第二恒流源中的一个平行设置的恒流MOS晶体管; 以及升压电流控制MOS晶体管，其中输出MOS晶体管和第二恒流源的连接节点的电位被施加到其栅极端子; 其中当输入到所述一对差分MOS晶体管中的一个的栅极端子的电压改变时，所述升压电流控制MOS晶体管导通，并且所述恒流MOS晶体管的电流被添加到所述第一和第二恒定电流控制MOS晶体管中的一个， 当前来源并被允许流动。
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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
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.
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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
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。
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7.发明授权公开(公告)号：US11327516B2
公开(公告)日：2022-05-10
申请号：US17061370
申请日：2020-10-01
摘要： A power supply control apparatus includes a voltage control transistor connected between a DC voltage input terminal and an output terminal; a control circuit controlling the voltage control transistor according to an output feedback voltage; and a first external terminal receiving an output control signal to control an output voltage. The control circuit includes a first error amplifier outputting a voltage according to an electric potential difference between a voltage divided by a first voltage dividing circuit which divides the output voltage of the output terminal and a predetermined reference voltage; and an output changing circuit including a second error amplifier receiving a voltage input in the first external terminal, a transistor having a control terminal receiving the output of the second error amplifier, and a current mirror circuit connected to the voltage input terminal which transfers an electric current flowing in the transistor. The output changing circuit displaces the divided voltage according to a voltage input at the first external terminal to change the output voltage according to the output control signal.
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公开(公告)号：US10886838B2
公开(公告)日：2021-01-05
申请号：US16442179
申请日：2019-06-14
申请人： Chuhei Terada , Yoichi Takano
发明人： Chuhei Terada , Yoichi Takano
IPC分类号： H02M1/32 , H03K17/284 , H01L27/118
摘要： Disclosed is a semiconductor integrated circuit for discharging, which includes: a plurality of discharging elements; a plurality of external terminals connected respectively to first terminals of the plurality of discharging elements; and a controlling external terminal which is capable of receiving from an outside a signal indicating that an operation of an internal circuit is enabled/disabled. In response to the signal received at the controlling external terminal or an output signal of a logic circuit that receives the signal being applied to controlling terminals of the plurality of discharging elements, the discharging semiconductor integrated circuit turns on the plurality of discharging elements to draw charges respectively through the plurality of external terminals.
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公开(公告)号：US06323428B1
公开(公告)日：2001-11-27
申请号：US09358656
申请日：1999-07-26
申请人： Yoichi Takano
发明人： Yoichi Takano
IPC分类号： H01B704
CPC分类号： H02G11/006 , B60R16/0215
摘要： A structure for protecting a flexible flat cable (FFC) is structured so that the FFC and a plate member arranged along it are covered with a heat-shrinkable tube. The structure is provided with fixing portions and for a fixed member and a movable member on both ends. In this configuration, if the movable member is repeatedly moved in a two-dimensional arrangement, the FFC will not buckle, easily deform owing to any external force and wear. This lengthens the life of the FFC greatly.
摘要翻译： 用于保护柔性扁平电缆（FFC）的结构被构造成使得FFC和沿其布置的板构件被热收缩管覆盖。 该结构设置有固定部分，并且在两端设置有固定部件和可动部件。 在这种结构中，如果可动构件以二维方式反复移动，则FFC不会由于任何外力和磨损而弯曲，容易变形。 这大大延长了FFC的使用寿命。
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10.发明授权公开(公告)号：US11353902B2
公开(公告)日：2022-06-07
申请号：US16861340
申请日：2020-04-29
摘要： A power control semiconductor device includes: a voltage control transistor connected between an input terminal and an output terminal; a control circuit that controls the voltage control transistor in accordance with a voltage of the output terminal; and an external terminal that controls an output voltage externally. The control circuit includes: a first divider which has resistor elements connected in series to the output terminal and which divides the output voltage of the output terminal; a first error amplifier that outputs a voltage corresponding to a potential difference between a predetermined reference voltage and a voltage divided by the first divider; and an output voltage change circuit that changes the divided voltage in accordance with a voltage input to the external terminal to change the output voltage in accordance with the voltage of the external terminal.
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