公开(公告)号：US07545610B2

公开(公告)日：2009-06-09

申请号：US11597923

申请日：2006-04-17

申请人： Toshihisa Nagata

发明人： Toshihisa Nagata

IPC分类号： H02H7/00

CPC分类号： G05F1/56

摘要： A constant-voltage power supply circuit for converting an input voltage applied to an input terminal into a predetermined constant voltage for output from an output terminal includes an output transistor to supply from the input terminal to the output terminal an output current responsive to an applied control signal, an error amplifying circuit unit to receive a predetermined bias current to control an operation of the output transistor, and a bias current adjusting circuit unit to supply the error amplifying circuit unit with the bias current responsive to the output current output from the output transistor, wherein the bias current adjusting circuit unit is configured to suspend the supply of the bias current to the error amplifying circuit unit in response to lowering of the output voltage to a predetermined voltage.

摘要翻译： 用于将施加到输入端子的输入电压转换成用于从输出端子输出的预定恒定电压的恒压电源电路包括输出晶体管，其从输入端子向输出端子提供响应于所施加的控制的输出电流 信号，接收预定偏置电流以控制输出晶体管的操作的误差放大电路单元，以及偏置电流调节电路单元，用于响应于从输出晶体管输出的输出电流向误差放大电路单元提供偏置电流 ，其中所述偏置电流调节电路单元被配置为响应于将所述输出电压降低到预定电压而将偏置电流的供应暂停到所述误差放大电路单元。

公开(公告)号：US20050231180A1

公开(公告)日：2005-10-20

申请号：US11090205

申请日：2005-03-28

申请人： Toshihisa Nagata ,  Kohji Yoshii ,  Yusuke Minakuchi

发明人： Toshihisa Nagata ,  Kohji Yoshii ,  Yusuke Minakuchi

IPC分类号： G05F1/40 ,  G05F1/575

CPC分类号： G05F1/575

摘要： A constant voltage circuit that is capable of realizing high speed response with respect to an abrupt change in an input voltage or a load current is disclosed. The constant voltage circuit includes a first error amplifier with a high direct current gain and a second error amplifier with high speed responsiveness with respect to a change in an output voltage. The constant voltage circuit uses the first and second error amplifiers to conduct operation control of an output voltage control transistor in response to a change in the output voltage.

摘要翻译： 公开了能够相对于输入电压或负载电流的突然变化实现高速响应的恒压电路。 恒压电路包括具有高直流增益的第一误差放大器和相对于输出电压的变化具有高速响应性的第二误差放大器。 恒压电路使用第一误差放大器和第二误差放大器来响应于输出电压的变化来对输出电压控制晶体管进行操作控制。

公开(公告)号：US5729499A

公开(公告)日：1998-03-17

申请号：US790953

申请日：1997-01-29

申请人： Hideo Fujiwara ,  Seiji Yamanaka ,  Toshihisa Nagata ,  Hiizu Okubo

发明人： Hideo Fujiwara ,  Seiji Yamanaka ,  Toshihisa Nagata ,  Hiizu Okubo

IPC分类号： G11C7/06 ,  G11C11/40

CPC分类号： G11C7/067 ,  G11C7/065

摘要： A state control portion causes a sense amplifier portion to be at an active state and for causing the sense amplifier to be at an inactive state. A feedback portion causes the control device to causing the sense amplifier portion to be in the inactive state when a path is formed between a power source and a ground in the sense amplifier. A latch portion holds an output of the sense amplifier output when the path is formed. The state control portion comprises a first transistor acting as a switching device. The feedback portion produces a control signal using an output of the sense amplifier portion and a clock signal obtained from a detection circuit, and supplies the control signal to the first transistor. A second transistor for precharging is connected between the first transistor and the power source.

摘要翻译： 状态控制部分使得感测放大器部分处于活动状态并且使感测放大器处于非活动状态。 当在感测放大器中的电源和地之间形成路径时，反馈部分使得控制装置使感测放大器部分处于非活动状态。 当形成路径时，锁存部分保持读出放大器输出的输出。 状态控制部分包括用作开关装置的第一晶体管。 反馈部分使用读出放大器部分的输出和从检测电路获得的时钟信号产生控制信号，并将控制信号提供给第一晶体管。 用于预充电的第二晶体管连接在第一晶体管和电源之间。

公开(公告)号：US08957646B2

公开(公告)日：2015-02-17

申请号：US13719454

申请日：2012-12-19

申请人： Toshihisa Nagata ,  Takahiro Hino ,  Akihito Nagahama

发明人： Toshihisa Nagata ,  Takahiro Hino ,  Akihito Nagahama

IPC分类号： G05F1/573 ,  G05F3/02

CPC分类号： G05F3/02 ,  G05F1/575

摘要： A constant voltage circuit includes an output control transistor to control an output current from an output terminal to keep an output voltage constant at a set voltage; and an excess-current protection circuit to control the output control transistor. The excess-current protection circuit includes a current increase restriction element to restrict increase in the output current to decrease the output voltage; a first current limitation circuit to limit a gate voltage of the output control transistor to decrease the output current, when the output voltage is decreased to a first limited voltage; a second current limitation circuit to limit a gate voltage of the output control transistor to decrease the output current, when the output voltage is decreased to a second limited voltage smaller than the first limited voltage; and a selector to select whether the first current limitation circuit is operated or stopped.

摘要翻译： 恒压电路包括：输出控制晶体管，用于控制来自输出端子的输出电流，以使输出电压恒定在设定电压; 以及过流保护电路来控制输出控制晶体管。 过流保护电路包括电流增加限制元件，以限制输出电流的增加以降低输出电压; 当输出电压降低到第一限制电压时，限制输出控制晶体管的栅极电压以减小输出电流的第一电流限制电路; 当输出电压降低到小于第一限制电压的第二限制电压时，限制输出控制晶体管的栅极电压以减小输出电流的第二电流限制电路; 以及选择器，用于选择第一电流限制电路是操作还是停止。

公开(公告)号：US08575904B2

公开(公告)日：2013-11-05

申请号：US12811897

申请日：2008-12-25

申请人： Toshihisa Nagata

发明人： Toshihisa Nagata

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  G01R31/2884 ,  H02M3/1588 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

摘要： A semiconductor device is disclosed. The semiconductor device includes a switching signal generating circuit formed of a PMOS transistor, a resistor, and inverters which outputs an internal switching signal for switching an operating mode between a first operating mode and a second operating mode when an operating state satisfies a predetermined condition, a mode selection pad to which an external switching signal capable of selecting the first operating mode is input in priority to the internal switching signal, and a switching circuit formed of an OR circuit which switches the operating mode between the first operating mode and the second operating mode based on the external switching signal or the internal switching signal. An output from the switching signal generating circuit is input to the mode selection pad via a trimming fuse.

摘要翻译： 公开了一种半导体器件。 半导体器件包括由PMOS晶体管形成的开关信号发生电路，电阻器和反相器，当操作状态满足预定条件时，输出用于在第一操作模式和第二操作模式之间切换操作模式的内部切换信号， 输入能够选择第一操作模式的外部开关信号优先于内部开关信号的模式选择板，以及由OR电路构成的开关电路，该OR电路在第一操作模式和第二操作模式之间切换操作模式 模式基于外部开关信号或内部开关信号。 来自开关信号发生电路的输出经由微调保险丝输入到模式选择板。

公开(公告)号：US08446215B2

公开(公告)日：2013-05-21

申请号：US11653872

申请日：2007-01-17

申请人： Toshihisa Nagata ,  Hideki Agari ,  Kohji Yoshii

发明人： Toshihisa Nagata ,  Hideki Agari ,  Kohji Yoshii

IPC分类号： G05F1/10

CPC分类号： G05F1/573

摘要： A constant voltage circuit is disclosed that includes an output control transistor and an overcurrent protection circuit. The overcurrent protection circuit includes a proportional current generation circuit part, a current division circuit part, a division ratio control circuit part, a current-voltage conversion circuit part, and an output current control circuit part. When the output voltage of the current-voltage conversion circuit part reaches a predetermined voltage, the output current control circuit part prevents an increase in the output current of the output control transistor so as to reduce a voltage output from an output terminal. When the voltage output from the output terminal is reduced to a predetermined limit voltage, the division ratio control circuit part changes the division ratio of the current division circuit part so that a current supplied to the current-voltage conversion circuit part increases so as to reduce the output current of the output control transistor.

摘要翻译： 公开了一种包括输出控制晶体管和过电流保护电路的恒压电路。 过电流保护电路包括比例电流产生电路部分，分流电路部分，分频比控制电路部分，电流 - 电压转换电路部分和输出电流控制电路部分。 当电流 - 电压转换电路部分的输出电压达到预定电压时，输出电流控制电路部分防止输出控制晶体管的输出电流增加，从而降低从输出端输出的电压。 当从输出端子输出的电压降低到预定极限电压时，分频比控制电路部分改变分流电路部分的分频比，使得提供给电流 - 电压转换电路部分的电流增加，从而减小 输出控制晶体管的输出电流。

公开(公告)号：US07948223B2

公开(公告)日：2011-05-24

申请号：US12057294

申请日：2008-03-27

申请人： Toshihisa Nagata ,  Kohji Yoshii ,  Yusuke Minakuchi

发明人： Toshihisa Nagata ,  Kohji Yoshii ,  Yusuke Minakuchi

IPC分类号： G05F1/56

CPC分类号： G05F1/575

摘要： A constant voltage circuit that is capable of realizing high speed response with respect to an abrupt change in an input voltage or a load current is disclosed. The constant voltage circuit includes a first error amplifier with a high direct current gain and a second error amplifier with high speed responsiveness with respect to a change in an output voltage. The constant voltage circuit uses the first and second error amplifiers to conduct operation control of an output voltage control transistor in response to a change in the output voltage.

摘要翻译： 公开了能够相对于输入电压或负载电流的突然变化实现高速响应的恒压电路。 恒压电路包括具有高直流增益的第一误差放大器和相对于输出电压的变化具有高速响应性的第二误差放大器。 恒压电路使用第一误差放大器和第二误差放大器来响应于输出电压的变化来对输出电压控制晶体管进行操作控制。

公开(公告)号：US20080238385A1

公开(公告)日：2008-10-02

申请号：US12057294

申请日：2008-03-27

申请人： Toshihisa Nagata ,  Kohji Yoshii ,  Yusuke Minakuchi

发明人： Toshihisa Nagata ,  Kohji Yoshii ,  Yusuke Minakuchi

IPC分类号： G05F1/00

CPC分类号： G05F1/575

摘要： A constant voltage circuit that is capable of realizing high speed response with respect to an abrupt change in an input voltage or a load current is disclosed. The constant voltage circuit includes a first error amplifier with a high direct current gain and a second error amplifier with high speed responsiveness with respect to a change in an output voltage. The constant voltage circuit uses the first and second error amplifiers to conduct operation control of an output voltage control transistor in response to a change in the output voltage.

摘要翻译： 公开了能够相对于输入电压或负载电流的突然变化实现高速响应的恒压电路。 恒压电路包括具有高直流增益的第一误差放大器和相对于输出电压的变化具有高速响应性的第二误差放大器。 恒压电路使用第一误差放大器和第二误差放大器来响应于输出电压的变化来对输出电压控制晶体管进行操作控制。

公开(公告)号：US20080278127A1

公开(公告)日：2008-11-13

申请号：US11597923

申请日：2006-04-17

申请人： Toshihisa Nagata

发明人： Toshihisa Nagata

IPC分类号： G05F1/569

CPC分类号： G05F1/56

摘要： A constant-voltage power supply circuit for converting an input voltage applied to an input terminal into a predetermined constant voltage for output from an output terminal includes an output transistor to supply from the input terminal to the output terminal an output current responsive to an applied control signal, an error amplifying circuit unit to receive a predetermined bias current to control an operation of the output transistor, and a bias current adjusting circuit unit to supply the error amplifying circuit unit with the bias current responsive to the output current output from the output transistor, wherein the bias current adjusting circuit unit is configured to suspend the supply of the bias current to the error amplifying circuit unit in response to lowering of the output voltage to a predetermined voltage.

摘要翻译： 用于将施加到输入端子的输入电压转换成用于从输出端子输出的预定恒定电压的恒压电源电路包括输出晶体管，其从输入端子向输出端子提供响应于所施加的控制的输出电流 信号，接收预定偏置电流以控制输出晶体管的操作的误差放大电路单元，以及偏置电流调节电路单元，用于响应于从输出晶体管输出的输出电流向误差放大电路单元提供偏置电流 ，其中所述偏置电流调节电路单元被配置为响应于将所述输出电压降低到预定电压而将偏置电流的供应暂停到所述误差放大电路单元。

公开(公告)号：US20080197829A1

公开(公告)日：2008-08-21

申请号：US10577666

申请日：2005-09-21

申请人： Toshihisa Nagata ,  kohji Yoshii

发明人： Toshihisa Nagata ,  kohji Yoshii

IPC分类号： G05F3/16

CPC分类号： G05F3/262 ,  H03K17/0822 ,  H03K17/145 ,  H03K2017/0806

摘要： A semiconductor device provided with a monitor transistor for detecting electric current flowing in a driver transistor mounted on a semiconductor chip is disclosed. The semiconductor device includes plural transistors provided in the monitor transistor and connected in parallel. The plural transistors are disposed at a periphery of an area of the semiconductor chip on which the driver transistor is mounted.

摘要翻译： 公开了一种半导体器件，其具有用于检测在安装在半导体芯片上的驱动晶体管中流动的电流的监视晶体管。 半导体器件包括设置在监视晶体管中的多个晶体管并联连接。 多个晶体管设置在其上安装有驱动晶体管的半导体芯片的区域的周边。