公开(公告)号：US06703955B2

公开(公告)日：2004-03-09

申请号：US10417106

申请日：2003-04-17

申请人： Kenji Otani ,  Ko Takemura

发明人： Kenji Otani ,  Ko Takemura

IPC分类号： H03M166

CPC分类号： H03M1/66

摘要： In a semiconductor integrated circuit device, a reference voltage is connected to one input terminal of an amplifier, and the voltage appearing on the output side is divided by a plurality of resistors and is negatively fed back to the other input terminal of the amplifier to control the output voltage. Here, according to an input code fed to the semiconductor integrated circuit device, switching devices are turned on or off correspondingly to vary how the resistors are connected and thereby control the voltage division factor. Thus, the output voltage is set according to the input code.

摘要翻译： 在半导体集成电路装置中，将参考电压连接到放大器的一个输入端子，并且输出侧出现的电压被多个电阻分压，并被反馈回放大器的另一个输入端，以控制 输出电压。 这里，根据馈送到半导体集成电路器件的输入代码，开关器件相应地导通或截止，以改变电阻器的连接方式，从而控制分压因子。 因此，输出电压根据输入代码设定。

公开(公告)号：US20050237683A1

公开(公告)日：2005-10-27

申请号：US11165181

申请日：2005-06-24

申请人： Ko Takemura ,  Kenji Otani

发明人： Ko Takemura ,  Kenji Otani

IPC分类号： G11C11/414 ,  H01L21/331 ,  H01L21/822 ,  H01L23/62 ,  H01L27/02 ,  H01L27/04 ,  H01L27/06 ,  H01L29/73 ,  H02H9/00 ,  H03K19/0175

CPC分类号： H01L27/0255 ,  H01L27/0292

摘要： To a plurality of terminals are connected, one to one, a plurality of current mirror circuits each having a first load portion through which a first current flows when an overvoltage is applied and a second load portion through which a second current proportional to the first current flows. The first load portion of the current mirror circuit connected to one of the plurality of terminals is shared as the first load portions of the current mirror circuits connected to the others of the plurality of terminals. The shared first load portion includes an overvoltage protection circuit. The second load portions of the current mirror circuits connected to the plurality of terminals each include an overvoltage detection circuit for detecting the second current.

摘要翻译： 多个端子一对一地连接多个电流镜电路，每个电流镜电路具有第一负载部分，当施加过电压时，第一电流流经第一负载部分;以及第二负载部分，与第一电流成比例的第二电流 流动。 连接到多个端子中的一个端子的电流镜电路的第一负载部分被共享为连接到多个端子中的其它端子的电流镜电路的第一负载部分。 共享的第一负载部分包括过电压保护电路。 连接到多个端子的电流镜电路的第二负载部分各自包括用于检测第二电流的过电压检测电路。

公开(公告)号：US06924533B2

公开(公告)日：2005-08-02

申请号：US10385435

申请日：2003-03-12

申请人： Ko Takemura ,  Kenji Otani

发明人： Ko Takemura ,  Kenji Otani

IPC分类号： G11C11/414 ,  H01L21/331 ,  H01L21/822 ,  H01L23/62 ,  H01L27/02 ,  H01L27/04 ,  H01L27/06 ,  H01L29/73 ,  H02H9/00 ,  H03K19/0175

CPC分类号： H01L27/0255 ,  H01L27/0292

摘要： To a plurality of terminals are connected, one to one, a plurality of current mirror circuits each having a first load portion through which a first current flows when an overvoltage is applied and a second load portion through which a second current proportional to the first current flows. The first load portion of the current mirror circuit connected to one of the plurality of terminals is shared as the first load portions of the current mirror circuits connected to the others of the plurality of terminals. The shared first load portion includes an overvoltage protection circuit. The second load portions of the current mirror circuits connected to the plurality of terminals each include an overvoltage detection circuit for detecting the second current.

摘要翻译： 多个端子一对一地连接多个电流镜电路，每个电流镜电路具有第一负载部分，当施加过电压时，第一电流流经第一负载部分;以及第二负载部分，与第一电流成比例的第二电流 流动。 连接到多个端子中的一个端子的电流镜电路的第一负载部分被共享为连接到多个端子中的其它端子的电流镜电路的第一负载部分。 共享的第一负载部分包括过电压保护电路。 连接到多个端子的电流镜电路的第二负载部分各自包括用于检测第二电流的过电压检测电路。

公开(公告)号：US07196888B2

公开(公告)日：2007-03-27

申请号：US11165181

申请日：2005-06-24

申请人： Ko Takemura ,  Kenji Otani

发明人： Ko Takemura ,  Kenji Otani

IPC分类号： H02H9/00 ,  H01L23/62

CPC分类号： H01L27/0255 ,  H01L27/0292

摘要： A method of fabricating a semiconductor integrated circuit device is provided. The device includes a protection circuit that connects to a terminal and has a protection diode and a current mirror circuit. The current mirror circuit includes first and second transistors having bases thereof connected together and emitters thereof connected together, so that emitters are connected to an anode of the protection diode. A method includes forming the anode of the protection diode; forming a cathode of the protection diode to surround the anode; forming a collector of the first transistor to surround about a half of the anode within a region surrounded by the cathode; forming a collector of the second transistor to surround about another half of the anode; and forming the bases of the first and second transistors as a common base substantially parallel to an edge of the collectors of the first and second transistors.

摘要翻译： 提供一种制造半导体集成电路器件的方法。 该器件包括一个保护电路，连接到一个端子，并具有一个保护二极管和一个电流镜电路。 电流镜电路包括其基极连接在一起的第一和第二晶体管及其发射体连接在一起，使得发射极连接到保护二极管的阳极。 一种方法包括形成保护二极管的阳极; 形成保护二极管的阴极以包围阳极; 在由所述阴极包围的区域内形成所述第一晶体管的集电极以围绕所述阳极的大约一半; 形成第二晶体管的集电极以围绕阳极的另一半; 以及将第一和第二晶体管的基极形成为基本上平行于第一和第二晶体管的集电极的边缘的公共基极。

公开(公告)号：US07486061B2

公开(公告)日：2009-02-03

申请号：US11599384

申请日：2006-11-15

申请人： Kiyotaka Umemoto ,  Ko Takemura

发明人： Kiyotaka Umemoto ,  Ko Takemura

IPC分类号： G05F1/40

CPC分类号： H02M3/156 ,  H02M3/1588 ,  H02M2001/0019 ,  H02M2001/0025 ,  Y02B70/1466

摘要： In a power supply apparatus that is so configured as to produce from an input voltage an output voltage Vo within a predetermined permissible variation range, the output voltage Vo is so controlled as to decrease within the permissible variation range as the output current Io increases. This configuration offers an output voltage with an improved transient characteristic against an abrupt variation in the output current and simultaneously permits reduction of the power consumed when the output current increases.

摘要翻译： 在被配置为从输入电压产生预定允许变化范围内的输出电压Vo的电源装置中，输出电压Vo被控制为随着输出电流Io增加而在允许的变化范围内减小。 该配置提供具有改善的瞬态特性的输出电压，以防止输出电流的突然变化，并且同时允许当输出电流增加时减少消耗的功率。

公开(公告)号：US20080019160A1

公开(公告)日：2008-01-24

申请号：US10595785

申请日：2004-11-11

申请人： Kiyotaka Umemoto ,  Ko Takemura

发明人： Kiyotaka Umemoto ,  Ko Takemura

IPC分类号： H02M3/06

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A DC/DC converter includes a switching element which is opened and closed to supply power from an input power supply VCC, through a coil to an output terminal, which is connected to a load, and to adjust the voltage at the output terminal. The DC/DC converter also includes a coil current detection resistor arranged to detect a coil current a smoothing capacitor connected to the load side of the coil current detection resistor and arranged to smooth the voltage at the output terminal, a reference current value control circuit arranged to detect the voltage on the coil side of the coil current detection resistor to control a reference current value of the coil current, a clock generator arranged to generate a reference clock, and a feedback circuit arranged to close the switching element in synchrony with the reference clock and to open the switching element when the coil current exceeds the reference current value.

摘要翻译： DC / DC转换器包括开关元件，其被打开和关闭以通过线圈向连接到负载的输出端子提供来自输入电源V CC的电力，并且调整 输出端的电压。 DC / DC转换器还包括线圈电流检测电阻器，被配置为检测线圈电流，连接到线圈电流检测电阻器的负载侧的平滑电容器，并布置成使输出端子处的电压平滑;基准电流值控制电路， 检测线圈电流检测电阻器的线圈侧上的电压，以控制线圈电流的参考电流值，布置成产生参考时钟的时钟发生器和布置成与参考电压同步地闭合开关元件的反馈电路 时钟，并且当线圈电流超过参考电流值时打开开关元件。

公开(公告)号：US20070263617A1

公开(公告)日：2007-11-15

申请号：US11666671

申请日：2005-09-21

申请人： Ko Takemura

发明人： Ko Takemura

IPC分类号： H04L12/50

CPC分类号： H02M3/158

摘要： A switching regulator includes a first switching regulator corresponding to a master channel, and a second switching regulator corresponding to a slave channel. The first switching regulator generates first output voltage Vout1 by a constant on-time system in which on-time is constant. On the other hand, the second switching regulator monitors a first switching signal and a second on-time control circuit determines on-time of a second switching signal in accordance with lapse time from the rising time of the first switching signal to the rising time of a second switching signal.

摘要翻译： 开关调节器包括对应于主通道的第一开关调节器和对应于从通道的第二开关调节器。 第一开关调节器通过导通时间恒定的恒定导通时间系统产生第一输出电压Vout 1。 另一方面，第二开关稳压器监视第一开关信号，第二导通时间控制电路根据从第一开关信号的上升时间到上升时间的经过时间来确定第二开关信号的导通时间 第二切换信号。

公开(公告)号：US07202647B2

公开(公告)日：2007-04-10

申请号：US11372145

申请日：2006-03-10

申请人： Takuya Okubo ,  Ko Takemura

发明人： Takuya Okubo ,  Ko Takemura

IPC分类号： G05F1/571

CPC分类号： G05F1/575

摘要： A power supply circuit relating to the present invention comprises a differential amplifier for feeding out a voltage as a control voltage in accordance with a difference between a feedback voltage commensurate with an output voltage and a reference voltage, an output current control element for feeding out an output current in accordance with the control voltage fed thereto from the differential amplifier, an output line by way of which the output current is supplied to a load, a feedback line by way of which a voltage on the output line is fed back as the feedback voltage to the differential amplifier, the feedback line connected to the output line, and a clamping circuit for maintaining the control voltage so as not drop below a predetermined value.

摘要翻译： 涉及本发明的电源电路包括：差分放大器，用于根据与输出电压相对应的反馈电压和参考电压之间的差异来输出电压作为控制电压;输出电流控制元件，用于馈出 输出电流，根据从差分放大器馈送到其的控制电压，输出线，输出电流被提供给负载;反馈线，输出线上的电压被反馈，作为反馈 差分放大器的电压，连接到输出线的反馈线，以及用于保持控制电压以使其不降至预定值以下的钳位电路。

公开(公告)号：US20070057650A1

公开(公告)日：2007-03-15

申请号：US11599384

申请日：2006-11-15

申请人： Kiyotaka Umemoto ,  Ko Takemura

发明人： Kiyotaka Umemoto ,  Ko Takemura

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M3/1588 ,  H02M2001/0019 ,  H02M2001/0025 ,  Y02B70/1466

摘要： In a power supply apparatus that is so configured as to produce from an input voltage an output voltage Vo within a predetermined permissible variation range, the output voltage Vo is so controlled as to decrease within the permissible variation range as the output current Io increases. This configuration offers an output voltage with an improved transient characteristic against an abrupt variation in the output current and simultaneously permits reduction of the power consumed when the output current increases

摘要翻译： 在被配置为从输入电压产生预定允许变化范围内的输出电压Vo的电源装置中，输出电压Vo被控制为随着输出电流Io增加而在允许的变化范围内减小。 该配置提供具有改善的瞬态特性的输出电压，以防止输出电流的突然变化，同时允许当输出电流增加时减少消耗的功率

公开(公告)号：US06922042B2

公开(公告)日：2005-07-26

申请号：US10608107

申请日：2003-06-30

申请人： Kiyotaka Umemoto ,  Ko Takemura

发明人： Kiyotaka Umemoto ,  Ko Takemura

IPC分类号： H02M3/155 ,  H02M3/07 ,  H02M3/158 ,  G05F1/40

CPC分类号： H02M3/1588 ,  H02M1/32 ,  H02M2001/0025 ,  Y02B70/1466 ,  Y10S323/901

摘要： A DC/DC converter produces from an input voltage a desired output voltage by first finding the error voltage between the output voltage and a first reference voltage and then controlling the output current according to the differential voltage between the error voltage and a second reference voltage. Used as the first reference voltage is whichever of a variable reference voltage and a first constant reference voltage is lower, and used as the second reference voltage is whichever of the variable reference voltage and a second constant reference voltage is lower. With this circuit configuration, an overshoot or undershoot in the output voltage can be prevented or reduced.

摘要翻译： DC / DC转换器通过首先找到输出电压和第一参考电压之间的误差电压，然后根据误差电压和第二参考电压之间的差分电压来控制输出电流，从输入电压产生期望的输出电压。 用作第一参考电压是可变参考电压和第一恒定参考电压中的任何一个，并且用作第二参考电压是可变参考电压和第二恒定参考电压中较低者。 利用该电路配置，可以防止或减少输出电压中的过冲或下冲。